STOCK TITAN

Solid Power (Nasdaq: SLDP) trims Q2 2026 loss and lifts liquidity to $419M

(Moderate)
(Neutral)
Form Type
10-Q

Rhea-AI Filing Summary

Solid Power, Inc., a development-stage solid-state battery company, reported second-quarter 2026 revenue and grant income of a net $(0.3) million, down from $7.5 million a year earlier, mainly because of milestone timing and a $1.2 million reversal of previously recognized non-government revenue under its SK On R&D license.

Operating expenses fell to $30.0 million from $33.4 million, driven by lower direct project costs, while research and development and selling, general and administrative spending were broadly stable to higher. The net loss narrowed to $23.8 million (loss per share $0.11) from $25.3 million (loss per share $0.14), helped by higher interest income and an $2.3 million gain from remeasuring warrant liabilities.

For the first half of 2026, net loss was $36.8 million versus $40.5 million a year earlier. Liquidity strengthened, with cash, cash equivalents, and available-for-sale securities totaling $419.3 million at June 30, 2026, up from $336.5 million, largely due to a January registered direct offering that raised $121.3 million net. The company remains debt-free and is investing heavily in a continuous electrolyte production pilot line, with related construction-in-progress of $11.0 million.

Positive

  • None.

Negative

  • None.

Filing Explained

The January financing increased the share base, while 45.6 million warrants and 58.8 million of ATM capacity leave further issuance possible.

Solid Power’s Form 10-Q is an unaudited quarterly report covering the six months ended June 30, 2026; it shows the January financing has issued common shares and left additional warrants outstanding.

The offering included $17.0 million shares, pre-funded warrants for 5.8 million shares, and Common Warrants for up to 45.6 million shares.

The issued shares increase the total share count and therefore reduce existing holders’ percentage ownership absent offsetting changes; the Common Warrants could create further dilution if exercised.

The ATM program is a capacity to sell new shares gradually at prevailing prices, not a completed sale: no shares were sold through it during the quarter, and approximately $58.8 million remained available as of June 30, 2026.

The DOE assistance agreement provides funding of up to $50.0 million for the continuous electrolyte pilot line; the filing reports $1.7 million of grant income for the first half and expects the line to be substantially complete and commissioned by the end of 2026.

Total liquidity $419,326 Cash, cash equivalents, and available-for-sale securities as of June 30, 2026
Q2 2026 net loss $23,821 Net loss attributable to common stockholders for the three months ended June 30, 2026
Six-month net loss $36,849 Net loss attributable to common stockholders for the six months ended June 30, 2026
Registered direct offering proceeds $121,345 Net proceeds from January 2026 offering of common stock and warrants
Q2 2026 revenue and grant income $(268) Total revenue and grant income for the three months ended June 30, 2026, in thousands
Operating cash outflow $27,173 Net cash used in operating activities for the six months ended June 30, 2026
Shares outstanding 227,217,240 Common shares issued and outstanding as of June 30, 2026
Electrolyte pilot line construction $10,978 Construction-in-progress for continuous electrolyte pilot line at June 30, 2026
variable interest entity financial
"The Company accounts for its equity ownership in Dahae Energy Co., Ltd. as a variable interest entity"
A variable interest entity (VIE) is a company structure where one party controls another company’s operations and economic outcomes through contracts or special arrangements instead of owning a majority of its voting shares. For investors, VIEs matter because the controlling party’s financial results, debts and risks can appear in the controller’s reports even though ownership looks separate, so understanding VIEs helps assess true exposure, governance limits and transparency—like spotting a puppet controlled by strings rather than direct ownership.
cost-to-cost method financial
"The Company recognizes revenue utilizing the cost-to-cost method as management believes this method best reflects progress"
available-for-sale securities financial
"The difference between the amortized cost and fair value of available-for-sale securities was not material"
Available-for-sale securities are investments in stocks, bonds or similar instruments that a company does not intend to trade frequently but may sell before they mature. They matter to investors because changes in the market value of these holdings show up as paper gains or losses on the company's balance sheet rather than immediately in profit, so they can affect reported net worth and the timing of income without changing day-to-day earnings. Think of them like items on a household shelf you might sell later: their value moves with the market even if you haven’t cashed out.
bifurcated embedded derivative financial
"The fair value of the bifurcated embedded derivative has been estimated using the with-and-without method"
Pre-Funded Warrants financial
"In January 2026, the Company issued pre-funded warrants to purchase an aggregate of 5,807,018 shares of common stock"
Pre-funded warrants are financial instruments that give investors the right to purchase a company's stock at a set price, but with most or all of the purchase price paid upfront. They function like a coupon or gift card for stock, allowing investors to buy shares later at a fixed price, which can be beneficial if they want to avoid future price increases. This makes them important for investors seeking flexibility and certainty in their investment plans.
at-the-market offering financial
"The Company entered into an Equity Distribution Agreement with respect to an at-the-market offering program"
An at-the-market offering is a method companies use to sell new shares of stock directly into the open market over time, rather than all at once. This allows them to raise money gradually, similar to selling small pieces of a product instead of a large batch. For investors, it means the company can access funding more flexibly, but it may also increase the supply of shares and influence the stock’s price.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

How did Solid Power (SLDP) perform financially in Q2 2026?

Solid Power reported a Q2 2026 net loss of $23.8 million, slightly improved from $25.3 million in Q2 2025. Revenue and grant income turned to a net loss of $0.3 million, mainly due to milestone timing and a $1.2 million revenue reversal.

What is Solid Power’s (SLDP) liquidity position as of June 30, 2026?

As of June 30, 2026, Solid Power held $419.3 million in total liquidity, including cash, cash equivalents, and available-for-sale securities. This increased from $336.5 million at year-end 2025, and the company reported no debt outstanding.

What were the key terms of Solid Power’s January 2026 registered direct offering (SLDP)?

In January 2026, Solid Power raised $121.3 million net by selling 17,000,000 common shares, 5,807,018 pre-funded warrants, and 45,614,036 common warrants. The common stock priced at $5.70 per share, and the common warrants have a $7.25 exercise price, expiring in 2033.

Why was Solid Power’s Q2 2026 revenue negative?

Q2 2026 revenue was impacted by a $1.2 million reversal of previously recognized non-government revenue tied to the SK On R&D license. This change reflected updated assumptions about variable consideration and, combined with milestone timing, drove total revenue and grant income to $(0.3) million.

How much is Solid Power investing in its continuous electrolyte production pilot line?

Construction-in-progress for the continuous electrolyte production pilot line totaled $11.0 million at June 30, 2026, up from $5.2 million at December 31, 2025. The project is also supported by a U.S. DOE assistance agreement providing up to $50 million in funding.

What were Solid Power’s (SLDP) operating cash flows for the first half of 2026?

For the six months ended June 30, 2026, Solid Power used $27.2 million of cash in operating activities, an improvement versus $40.7 million used in the prior-year period. The change reflects payment timing, higher partner collections, and slightly lower cash compensation costs.
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2026

or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _______ to _______

Commission file number: 001-40284

Graphic

SOLID POWER, INC.

(Exact name of registrant as specified in its charter)

Delaware

  ​ ​

86-1888095

(State or other jurisdiction of

(I.R.S. Employer

incorporation or organization)

Identification No.)

486 S. Pierce Ave., Suite E

Louisville, Colorado

80027

(Address of principal executive offices)

(Zip Code)

(303) 219-0720

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

  ​ ​

Trading symbol(s)

  ​ ​

Name of each exchange on which registered

Common stock, par value $0.0001 per share

SLDP

The Nasdaq Stock Market LLC

Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50

SLDPW

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No

228,181,212 shares of common stock were issued and outstanding as of August 3, 2026.

Table of Contents

SOLID POWER, INC.

FORM 10-Q

Table of Contents

PART I. FINANCIAL INFORMATION

Item 1.

Financial Statements

4

Item 2.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

23

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

29

Item 4.

Controls and Procedures

30

PART II. OTHER INFORMATION

Item 1.

Legal Proceedings

30

Item 1A.

Risk Factors

30

Item 6.

Exhibits

31

Signatures

32

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q (this “Report”) contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve risks and uncertainties. References in this Report to “Solid Power,” “the Company,” “we,” “us,” and “our” refer to Solid Power, Inc. and its consolidated subsidiaries. We have based these forward-looking statements on our current expectations and projections about future events. All statements, other than statements of present or historical fact included in this Report, regarding our future financial performance, strategy, expansion plans, including plans related to the expansion of our electrolyte production capabilities, potential new joint ventures and anticipated collaboration agreements, market opportunity, operations, and operating results, estimated revenues or losses, projected costs, future prospects, and plans and objectives of management are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “may,” “should,” “could,” “would,” “will,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “continue,” “project,” or the negative of such terms or other similar expressions. These forward-looking statements are subject to known and unknown risks, uncertainties, and assumptions about us that may cause our actual results, levels of activity, performance, or achievements to be materially different from any future results, levels of activity, performance, or achievements expressed or implied by such forward-looking statements. Except as otherwise required by applicable law, we disclaim any duty to update any forward-looking statements, all of which are expressly qualified by the statements in this section, to reflect events or circumstances after the date of this Report. We caution you that the forward-looking statements contained herein are subject to numerous risks and uncertainties, most of which are difficult to predict and many of which are beyond our control.

In addition, we caution you that the forward-looking statements regarding the Company contained in this Report are subject to the following factors:

risks relating to the uncertainty of the success of our research and development efforts, including our ability to achieve the technological objectives or results that our partners require and our ability to commercialize our technology in advance of competing technologies and our competitors;
risks relating to our status as a research and development stage company with a history of financial losses with an expectation of incurring significant expenses and continuing losses for the foreseeable future, including execution of our business plan and the timing of expected business milestones;
risks relating to the non-exclusive nature of our partnerships, our ability to secure new business relationships, and our ability to manage these relationships;
our ability to negotiate and enter into potential joint venture arrangements and new or amended collaboration or other commercial agreements with our partners and customers on commercially reasonable terms;

1

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broad market adoption of EVs and other technologies where we are able to deploy our technology, if developed successfully;
our success attracting and retaining our executive officers, key employees, and other qualified personnel;
our ability to protect and maintain our owned and exclusively-licensed intellectual property, including in jurisdictions outside of the United States;
our ability to secure government contracts and grants, changes in government priorities with respect to our government contracts and grants or government funding reductions or delays, and the availability of government subsidies and economic incentives;
delays in the construction and operation of facilities that meet our short-term research and development and long-term electrolyte production requirements;
changes in applicable laws or regulations, including tariffs;
risks relating to, and potential liabilities resulting from, our information technology infrastructure and data security incidents, threats, breaches, or attacks;
risks relating to other economic, business, or competitive factors in the United States and other jurisdictions, including supply chain interruptions and changes in market conditions, and our ability to manage these risks and uncertainties; and
those factors discussed in “Part I, Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Form 10-K”), may be updated or amended in future filings we make with the Securities and Exchange Commission (“SEC”).

We caution you that the foregoing list does not contain all of the risks or uncertainties that could affect the Company.

You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this Report primarily on our current expectations and projections about future events and trends that we believe may affect our business, operating results, financial condition and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors, including those described in “Part I, Item 1A. Risk Factors” in the 2025 Form 10-K, as may be updated or amended in future filings we make with the SEC. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this Report. We cannot assure you that the results, events, and circumstances reflected in the forward-looking statements will be achieved or occur, and actual results, events, or circumstances could differ materially from those described in the forward-looking statements.

Neither we nor any other person assumes responsibility for the accuracy and completeness of any of these forward-looking statements. Moreover, the forward-looking statements made in this Report relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this Report to reflect events or circumstances after the date of this Report or to reflect new information or the occurrence of unanticipated events, except as required by law. You should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, or investments we may make.

TRADEMARKS

Our logo and trademark appearing in this Report and the documents incorporated by reference herein are our property. This document and the documents incorporated by reference herein contain references to trademarks and service marks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this Report may appear without the ® or TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies’ trade names, trademarks, or service marks to imply a relationship with, or endorsement or sponsorship of it by, any other companies.

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MARKET AND INDUSTRY DATA

We obtained the industry and market data used throughout this Report or any documents incorporated herein by reference from our own internal estimates and research, as well as from independent market research, industry and general publications and surveys, governmental agencies, publicly available information, and research, surveys, and studies conducted by third parties. Internal estimates are derived from publicly available information released by industry analysts and third-party sources, our internal research, and our industry experience and are based on assumptions made by us based on such data and our knowledge of our industry and market, which we believe to be reasonable. In some cases, we do not expressly refer to the sources from which this data is derived. In addition, while we believe the industry and market data included in this Report or any documents incorporated herein by reference is reliable and based on reasonable assumptions, such data involve material risks and other uncertainties and is subject to change based on various factors, including those discussed in the section entitled “Risk Factors.” These and other factors could cause results to differ materially from those expressed in the estimates made by the independent parties or by us.

AVAILABLE INFORMATION

Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are filed with the SEC. These reports and other information we file with or furnish to the SEC are available free of charge at https://www.solidpowerbattery.com/investor-relations/financials/sec-filings as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. In addition, the SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at http://www.sec.gov.

We use our website (www.solidpowerbattery.com) and various social media channels (e.g., Solid Power, Inc. on LinkedIn) as a means of disclosing information about Solid Power and our products to our customers, investors, and the public. The information posted on our website and social media channels is not incorporated by reference in this Report or in any other report or document we file with the SEC. Further, references to our website URLs are intended to be inactive textual references only. The information we post through these channels may be deemed material. Accordingly, investors should monitor these channels, in addition to following our press releases, SEC filings, and public conference calls and webcasts. In addition, you may automatically receive e-mail alerts and other information about Solid Power when you enroll your e-mail address by visiting the “Investor Email Alerts” section of our website under “Resources” at https://ir.solidpowerbattery.com. Although our executive officers may also use certain social media channels, we do not use our executive officers’ social media channels to disclose information about Solid Power or our products.

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PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

Solid Power, Inc.

Condensed Consolidated Balance Sheets

(in thousands, except par value and number of shares)

June 30, 2026

  ​ ​ ​

(Unaudited)

  ​ ​ ​

December 31, 2025

Assets

Current Assets

 

  ​

 

  ​

Cash and cash equivalents

$

24,284

$

21,607

Marketable securities

218,151

229,177

Accounts receivable

 

3,187

 

2,155

Contract assets

7,490

Prepaid expenses and other current assets

 

5,756

 

6,998

Total current assets

 

251,378

 

267,427

Long-Term Assets

Property, plant and equipment, net

 

84,207

86,318

Right-of-use operating lease assets, net

6,252

6,727

Investments

177,865

86,997

Intangible assets, net

 

2,159

2,166

Other assets

880

1,059

Loan receivable from equity method investee

4,327

4,398

Total long-term assets

275,690

187,665

Total assets

$

527,068

$

455,092

Liabilities, Mezzanine Equity and Stockholders’ Equity

 

 

Current Liabilities

 

 

Accounts payable and other accrued liabilities

7,015

8,521

Deferred revenue

 

1,161

198

Deferred revenue from related parties

75

172

Accrued compensation

 

6,053

7,043

Operating lease liabilities

913

861

Warrant liabilities

1,990

Total current liabilities

 

17,207

 

16,795

Long-Term Liabilities

Warrant liabilities

13,881

Operating lease liabilities

6,621

7,129

Other liabilities

 

1,091

1,113

Total long-term liabilities

7,712

22,123

Total liabilities

24,919

38,918

Mezzanine Equity

Mezzanine Equity

406

470

Stockholders’ Equity

 

  ​

 

  ​

Common Stock, $0.0001 par value; 2,000,000,000 shares authorized; 227,217,240 and 201,181,175 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively

 

23

20

Additional paid-in capital

 

814,957

690,234

Accumulated deficit

 

(311,632)

(274,904)

Accumulated other comprehensive income (loss)

(1,605)

354

Total stockholders’ equity

 

501,743

 

415,704

Total liabilities, mezzanine equity and stockholders’ equity

$

527,068

$

455,092

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

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Solid Power, Inc.

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited)

(in thousands, except number of shares and per share amounts)

  ​ ​ ​

Three Months Ended June 30, 

Six Months Ended June 30, 

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Revenues and Grant Income

Revenue

$

(1,017)

$

6,485

$

1,088

$

11,609

Grant income

749

1,055

1,717

1,947

Total revenue and grant income

(268)

7,540

2,805

13,556

Operating Expenses

 

 

Direct costs

2,119

8,462

5,667

11,158

Research and development

19,363

18,342

37,111

37,363

Selling, general and administrative

8,539

6,607

16,661

14,934

Total operating expenses

30,021

 

33,411

59,439

 

63,455

Operating Loss

(30,289)

 

(25,871)

(56,634)

 

(49,899)

Nonoperating Income and Expense

 

 

Interest income

4,172

3,237

8,184

6,836

Change in fair value of warrant liabilities

2,250

(3,216)

11,891

2,663

Interest expense

(9)

(7)

(206)

(15)

Other expense

(93)

(151)

(75)

(673)

Total nonoperating income and expense

6,320

 

(137)

19,794

 

8,811

Pretax Loss

$

(23,969)

$

(26,008)

$

(36,840)

$

(41,088)

Income tax expense (income)

(79)

6

5

6

Share of net loss (income) of equity method investee

(69)

(676)

4

(606)

Net Loss Attributable to Common Stockholders

$

(23,821)

$

(25,338)

$

(36,849)

$

(40,488)

Other Comprehensive Income (Loss)

(552)

13

(1,958)

185

Comprehensive Loss Attributable to Common Stockholders

$

(24,373)

$

(25,325)

$

(38,807)

$

(40,303)

Basic and diluted loss per share

$

(0.11)

$

(0.14)

$

(0.17)

$

(0.22)

Weighted average shares outstanding – basic and diluted

225,974,899

180,343,931

221,661,211

180,871,314

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

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Solid Power, Inc.

Condensed Consolidated Statements of Stockholders’ Equity (Unaudited)

(in thousands, except number of shares)

Common Stock

Additional

Accumulated

Accumulated Other

Total Stockholders’

  ​ ​ ​

Shares

  ​ ​ ​

Amount

  ​ ​ ​

paid-in capital

  ​ ​ ​

deficit

  ​ ​ ​

Comprehensive Income (Loss)

  ​ ​ ​

Equity

Balance as of December 31, 2025

201,181,175

$

20

$

690,234

$

(274,904)

$

354

$

415,704

Net loss

(13,028)

(13,028)

Withholding of employee taxes related to stock-based compensation

(358)

(358)

Shares of common stock issued for vested RSUs

488,734

Stock options exercised

42,494

6

6

Stock-based compensation expense

2,706

2,706

Remeasurement of mezzanine equity

97

97

Unrealized gain on available-for-sale securities

(1,407)

(1,407)

Proceeds from the registered direct offering, net of offering costs, commissions, and fees of $8,664

22,807,018

2

121,334

121,336

Balance as of March 31, 2026

224,519,421

$

22

$

813,922

$

(287,835)

$

(1,053)

$

525,056

Net loss

(23,821)

(23,821)

Shares of common stock issued under the ESPP

151,197

370

370

Withholding of employee taxes related to stock-based compensation

(2,476)

(2,476)

Shares of common stock issued for vested RSUs

2,546,622

1

1

Stock-based compensation expense

3,133

3,133

Remeasurement of mezzanine equity

24

24

Unrealized gain on available-for-sale securities

(552)

(552)

Proceeds from the registered direct offering, net of offering costs, commissions, and fees of $8,654

8

8

Balance as of June 30, 2026

227,217,240

$

23

$

814,957

$

(311,632)

$

(1,605)

$

501,743

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Common Stock

Additional

Accumulated

Accumulated Other

Total Stockholders’

  ​ ​ ​

Shares

  ​ ​ ​

Amount

  ​ ​ ​

paid-in capital

  ​ ​ ​

deficit

  ​ ​ ​

Comprehensive Income (Loss)

  ​ ​ ​

Equity

Balance as of December 31, 2024

180,364,028

$

18

$

591,394

$

(181,171)

$

39

$

410,280

Net loss

(15,151)

(15,151)

Withholding of employee taxes related to stock-based compensation

(261)

(261)

Shares of common stock issued for vested RSUs

551,828

Stock options exercised

1,532,420

181

181

Stock-based compensation expense

1,830

1,830

Remeasurement of mezzanine equity

20

20

Unrealized loss on available-for-sale securities

173

173

Balance as of March 31, 2025

182,448,276

$

18

$

593,144

$

(196,302)

$

212

$

397,072

Net loss

(25,338)

(25,338)

Shares of common stock issued under the ESPP

180,091

156

156

Withholding of employee taxes related to stock-based compensation

(298)

(298)

Shares of common stock issued for vested RSUs

1,096,546

Stock options exercised

350,757

478

478

Repurchase and retirement of shares of common stock

(3,361,396)

(3,537)

(3,537)

Stock-based compensation expense

2,153

2,153

Remeasurement of mezzanine equity

(68)

(68)

Unrealized loss on available-for-sale securities

13

13

Balance as of June 30, 2025

180,714,274

$

18

$

592,096

$

(221,708)

$

225

$

370,631

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

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Solid Power, Inc.

Condensed Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

Cash Flows from Operating Activities

 

Net loss

$

(36,849)

$

(40,488)

Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:

 

Depreciation and amortization

9,491

9,142

Amortization of right-of-use assets

594

741

Loss on sales of property, plant and equipment, net

198

574

Share of net loss (income) of equity method investee

4

(606)

Stock-based compensation expense

5,839

3,983

Change in fair value of warrant liabilities

(11,891)

(2,663)

Accretion of discounts on other long-term liabilities

34

33

Accretion of loan receivable from equity method investee

(70)

(64)

Amortization of premiums and accretion of discounts on available-for-sale securities

(1,510)

(2,490)

Loss on change in assessment of finance lease purchase options

84

Change in operating assets and liabilities that provided (used) cash and cash equivalents:

Accounts receivable

1,374

(2,816)

Contract assets

7,490

Prepaid expenses and other current assets and other assets

2,891

1,729

Accounts payable and other accrued liabilities

(3,508)

(2,054)

Deferred revenue

963

(2,789)

Deferred revenue from related parties

(97)

Accrued compensation

(1,669)

(2,476)

Operating lease liabilities

(457)

(574)

Net cash and cash equivalents used in operating activities

(27,173)

 

(40,734)

Cash Flows from Investing Activities

 

Purchases of property, plant and equipment, net

(7,933)

(5,044)

Purchases of available-for-sale securities

(245,450)

(101,690)

Proceeds from sales of available-for-sale securities

163,626

152,453

Gain on sale of available-for-sale securities

3

Cash received on loan receivable from equity method investee

142

Purchases of intangible assets

(4)

(649)

Net cash and cash equivalents (used in) provided by investing activities

(89,619)

 

45,073

Cash Flows from Financing Activities

 

Proceeds from exercise of stock options

6

659

Proceeds from issuance of shares of common stock under the ESPP

370

156

Cash paid for withholding of employee taxes related to stock-based compensation

(2,156)

(557)

Repurchase of shares of common stock

(3,592)

Payments on finance lease liabilities

(96)

(170)

Proceeds from the registered direct offering, net of fees

121,345

Net cash and cash equivalents provided by (used in) financing activities

119,469

(3,504)

Net increase in cash and cash equivalents

2,677

835

Cash and cash equivalents at beginning of period

21,607

25,413

Cash and cash equivalents at end of period

24,284

26,248

Supplemental information

Cash paid for interest

$

206

$

15

Accrued capital expenditures

2,144

1,092

Unpaid reimbursements on capital expenditures

2,407

417

Accrued withholding of employee taxes related to stock-based compensation

678

Accrued excise tax on stock repurchases

35

See accompanying Notes to Condensed Consolidated Financial Statements (Unaudited).

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Notes to Condensed Consolidated Financial Statements (Unaudited) (in thousands, except number of shares and per share amounts)

Note 1 – Nature of Business

Solid Power, Inc. (the “Company”) is developing solid-state battery technology for the battery electric vehicle (“EV”) and other markets. The Company’s planned business model is to sell its electrolyte and to license its cell designs and manufacturing processes.

Note 2 – Significant Accounting Policies

The significant accounting policies followed by the Company are set forth in Note 2 – Significant Accounting Policies to the Company’s financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Form 10-K”) and are supplemented by the Notes to the Condensed Consolidated Financial Statements (Unaudited) in this Report (the “Notes”). The financial statements included in this Quarterly Report on Form 10-Q (including the Notes) should be read in conjunction with the 2025 Form 10-K.

Basis of Presentation and Principles of Consolidation

The accompanying unaudited condensed consolidated financial statements of the Company have been prepared on the basis of U.S. generally accepted accounting principles (“GAAP”) and reflect all adjustments of a normal recurring nature, which are, in the opinion of management, necessary for a fair presentation of the consolidated financial position and results of operations at, and for, the periods presented. The preparation of unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the unaudited condensed consolidated financial statements. Actual results could differ from those estimates. All dollar amounts presented herein are in U.S. dollars and are in thousands, except par value and share and per share amounts. The accompanying unaudited condensed consolidated financial statements include accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The Company accounts for its equity ownership in Dahae Energy Co., Ltd. (“Dahae”), an entity in which the Company does not exercise control or have the obligation to absorb losses or receive benefits, as a variable interest entity (“VIE”). A VIE is a legal entity that possesses any of the following conditions: the entity’s equity at risk is not sufficient to permit the legal entity to finance its activities without additional subordinated financial support, equity owners are unable to direct the activities that most significantly impact the legal entity’s economic performance (or they possess disproportionate voting rights in relation to the economic interest in the legal entity), or the equity owners lack the obligation to absorb the legal entity’s expected losses or the right to receive the legal entity’s expected residual returns. The Company consolidates a VIE if the Company determines that it has (i) the power to direct the activities of the VIE that most significantly impacts its economic performance and (ii) the obligation to absorb losses or the right to receive benefits from the VIE that are more than insignificant to the VIE. If an entity is determined to be a VIE but the Company does not have a controlling interest, the entity is accounted for under either the cost or equity method depending on whether the Company can exercise significant influence. The Company has determined that it does not meet the control requirements to consolidate Dahae and accounts for the investment using the equity method of accounting. The Company evaluates its relationships with Dahae on an ongoing basis, including when the Company believes a loss in value may have occurred which is other than temporary. The Company measures its equity method investment at cost minus impairment, if any, plus or minus the share of the equity method investee’s loss or gain. Activity is included in Investments in the Condensed Consolidated Balance Sheets and separately within Share of net income (loss) of equity method investee in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) and within Cash Flows from Investing Activities in the Condensed Consolidated Statements of Cash Flows.

Revenue and Grant Income

The Company assesses all collaborative arrangements to determine whether the agreement should be recorded in accordance with Accounting Standards Codification (“ASC”) 808 – Collaborative Arrangements. Collaborative arrangements involve two or more parties who are active participants and meet the following components: both parties are exposed to significant risks and rewards, and both parties are dependent on the commercial success of the efforts under the contract. Revenue recognition is recorded by analogy to ASC 606 – Revenue from Contracts with Customers. The Company’s agreements with SK On Co., Ltd. (“SK On” and such agreements, the “SK On Agreements”) meet the criteria of collaborative arrangements. Amounts received for these products and services are classified as Revenue in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss). The Company recognizes revenue utilizing the cost-to-cost method as management believes this method best reflects the progress towards fulfillment of the performance obligation. The Company expenses contract fulfillment costs as incurred.

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Prior to January 1, 2025, the Company recognized revenue from the Company’s collaborative arrangements, including the SK On Agreements, over time using the input measurement method utilizing labor hours in relation to total labor hours anticipated to satisfy the performance obligation. Effective January 1, 2025, the Company changed its basis of input to utilize the cost-to-cost method to satisfy the performance obligation. The Company made this adjustment because it believes using the cost-to-cost method provides a more accurate reflection of how performance is satisfied over time. This adjustment is treated as a change in estimate beginning on January 1, 2025, and prior period amounts will not be adjusted.

The Company estimates whether it will be subject to variable consideration under the terms of a contract and includes its estimate of variable consideration, subject to constraint, in the transaction price based on the expected value method when it is deemed probable of being realized based on historical experience and trends. The Company updates its estimate of the transaction price each reporting period, and the effect of variable consideration on the transaction price is recognized as an adjustment to revenue on a cumulative catch-up basis.

The Company recognizes revenue from cooperative agreements with the government in cost contracts on the basis of costs incurred during the period and for cost plus fixed-fee contracts on the basis of costs incurred during the period plus the fee earned. Contract costs include all direct labor, subcontract, material, and indirect costs related to the contract performance.

On January 21, 2025, Solid Power Operating, Inc. entered into an assistance agreement with the U.S. Department of Energy (“DOE”) with an effective date of January 1, 2025 (as amended effective May 15, 2025 and amended and restated effective January 1, 2026, the “Assistance Agreement”). The Assistance Agreement provides that DOE will provide the Company with funding of up to $50,000 for the Company’s installation of equipment necessary for the continuous production of sulfide-based electrolyte material pilot line. The Company records grant income from the Assistance Agreement in accordance with International Accounting Standards 20 when conditions have been substantially met. This income is presented within Grant income in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).

For electrolyte sales, the Company recognizes revenue when the control of the goods is transferred to the customer and for the amount of consideration the Company expects to receive.

Warrants

The Company accounts for warrants as either liabilities or equity based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480—Distinguishing Liabilities from Equity and ASC 815—Hedge Accounting. Warrants recorded as liabilities are recorded at their fair value within Warrant liabilities in the Condensed Consolidated Balance Sheets and remeasured on each reporting date with changes recorded in Change in fair value of warrant liabilities in the Company’s Condensed Consolidated Statements of Operations and Comprehensive Income (Loss). Warrants recorded as equity are recorded at their fair value at issuance (less direct issuance costs) in Additional Paid-In Capital and are not remeasured.

Segment Reporting

The Company’s Chief Operating Decision Maker (“CODM”) is its Chief Executive Officer. The Company has determined that it operates in one operating segment and one reportable segment as the CODM reviews financial information presented as a single entity for purposes of making operating decisions, allocating resources, and evaluating financial performance. The CODM manages the business on a consolidated basis and uses consolidated Net Loss Attributable to Common Stockholders as reported in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) as the profit or loss measure in assessing performance and deciding how to allocate resources. The CODM is regularly provided with only the consolidated expenses as classified and presented in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).

Recent Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-03 Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40) Disaggregation of Income Statement Expenses. ASU 2024-03 requires disclosure of specified information about certain costs and expenses in the notes to the financial statements. ASU 2024-03 will be effective for annual periods beginning after December 15, 2026 and interim periods beginning after December 15, 2027. ASU 2024-03 can be applied either prospectively to financial statements or retrospectively to any prior periods presented in the financial statements. The Company is currently evaluating the impact of adoption on the Condensed Consolidated Financial Statements and disclosures.

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In December 2025, the FASB issued ASU No. 2025-10 Government Grants (Topic 832). ASU 2025-10 establishes authoritative guidance on the recognition, measurement and presentation of government grants received by business entities. The guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods beginning after December 15, 2028, with early adoption permitted. The guidance is applied on a modified prospective, a modified retrospective, or a retrospective transition approach. The Company is currently evaluating the impact of adoption on the Condensed Consolidated Financial Statements and disclosures.

In December 2025, the FASB issued ASU No. 2025-11 Interim Reporting (Topic 270). ASU 2025-11 clarifies guidance related to Topic 270 for interim disclosure requirements. The objective of the amendment is to provide clarity about the current requirements rather than evaluate whether to expand or reduce interim disclosure requirements. ASU 2025-11 is effective for interim reporting periods beginning after December 15, 2027, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of adoption on the Condensed Consolidated Financial Statements and Disclosure.

Note 3 – Property, Plant and Equipment, Net

Property, plant and equipment, net are summarized as follows:

  ​ ​ ​

June 30, 2026

  ​ ​ ​

December 31, 2025

Production equipment

$

42,868

$

43,203

Laboratory equipment

17,580

15,287

Leasehold improvements

 

73,334

 

73,369

Furniture and computer equipment

 

4,711

 

4,711

Construction in progress

 

12,030

 

6,858

Total cost

 

150,523

 

143,428

Accumulated depreciation

 

(66,316)

 

(57,110)

Property, plant and equipment, net

$

84,207

$

86,318

Depreciation expenses for dedicated laboratory equipment and production equipment are charged to research and development. Office equipment, leasehold improvements, software, and computer equipment related depreciation expenses are allocated between research and development and selling, general and administrative expenses based on the nature of its use.

Depreciation expense related to property, plant and equipment are summarized as follows:

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Depreciation expense

$

4,752

$

4,595

$

9,480

$

9,131

As of June 30, 2026, the Company is designing a continuous electrolyte production pilot line which it expects to be substantially complete and commissioned by the end of 2026. Construction in progress related to property, plant and equipment is summarized as follows:

Construction in progress

June 30, 2026

December 31, 2025

Continuous electrolyte pilot manufacturing line

$

10,978

$

5,214

Cell safety abuse lab

94

EIC

111

111

Other capital projects

941

1,439

Total

$

12,030

$

6,858

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Note 4 – Intangible Assets

Intangible assets are summarized as follows:

  ​ ​ ​

June 30, 2026

  ​ ​ ​

December 31, 2025

Gross Carrying

Accumulated

Gross Carrying

Accumulated

  ​ ​ ​

Amount

  ​ ​ ​

Amortization

  ​ ​ ​

Amount

  ​ ​ ​

Amortization

Intangible assets:

Licenses

$

152

$

(82)

$

149

$

(78)

Patents

261

(32)

261

(25)

Patents pending

 

1,813

 

 

1,813

 

Trademarks

13

13

Trademarks pending

 

34

 

 

33

 

Total amortizable intangible assets

$

2,273

$

(114)

$

2,269

$

(103)

Amortization expense for intangible assets is summarized as follows:

Three Months Ended June 30, 

Six Months Ended June 30, 

 

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

 

Amortization expense

$

5

$

6

$

11

$

11

Useful lives of intangible assets range from three to 20 years. Amortization expenses are expensed within research and development expense within Operating Expenses in the Company’s Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).

Note 5 – Revenue and Grant Income

The Company receives revenue and grant income from both government and non-government entities. Government revenue and grant income includes both revenue and grant income from collaborative arrangements. Non-government revenue includes both revenue from collaborative arrangements and electrolyte sales. The table below sets forth revenue and grant income by type for the three and six months ended June 30, 2026 and 2025.

Three Months Ended June 30, 

Six Months Ended June 30, 

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Government - revenue

$

(6)

$

505

$

128

$

1,168

Government - grant income

749

1,055

1,717

1,947

Non-government revenue

(1,011)

5,980

960

10,441

Total revenue and grant income

$

(268)

$

7,540

$

2,805

$

13,556

During the three months ended June 30, 2026, the Company recorded a $1.2 million reversal of previously recognized non-government revenue. The adjustment was driven by a change in assumptions connected to the Company’s constraint on variable consideration within certain milestone payments under the research and development technology license agreement (the “SK On R&D license”).

Note 6 – Fair Value Measurements

The carrying amount of certain financial instruments, such as cash equivalents, accounts receivable, accounts payable, and accrued liabilities, approximate fair value due to their relatively short maturities. The difference between the amortized cost and fair value of available-for-sale securities as of June 30, 2026 and December 31, 2025 was not material.

12

Table of Contents

Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis

The following table summarizes the asset type, balance sheet classification, maturity, and value of the Company’s marketable securities and investments in the Condensed Consolidated Balance Sheets.

Assets

Balance Sheet Classification

Maturity

June 30, 2026

December 31, 2025

Commercial Paper

Marketable securities

Due in 1 year or less

$

59,483

$

62,166

Corporate Bonds

Marketable securities

Due in 1 year or less

126,309

122,941

Government Bonds

Marketable securities

Due in 1 year or less

21,320

39,053

U.S. Treasuries

Marketable securities

Due in 1 year or less

11,039

5,017

Total Marketable securities

$

218,151

$

229,177

Corporate Bonds

Investments

Due in 1 year to 5 years

$

152,413

$

63,187

Government Bonds

Investments

Due in 1 year to 5 years

24,478

22,479

Equity Method Investment

Investments

974

1,331

Total Investments

$

177,865

$

86,997

See Note 2 – Significant Accounting Policies to the Company’s financial statements included in the 2025 Form 10-K, as supplemented by the Notes, for information regarding Levels 1 through Level 3 inputs.

As of June 30, 2026 and December 31, 2025, the Company’s financial assets and liabilities measured and recorded at fair value on a recurring basis were classified within the fair value hierarchy as follows:

June 30, 2026

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

  ​ ​ ​

Total

Assets

Balance Sheet Classification

Commercial Paper

Marketable securities

$

59,483

$

$

$

59,483

Corporate Bonds

Marketable securities

$

126,309

$

$

$

126,309

Government Bonds

Marketable securities

 

$

21,320

$

$

 

$

21,320

U.S. Treasuries

Marketable securities

$

11,039

$

$

$

11,039

Corporate Bonds

Investments

$

152,413

$

$

$

152,413

Government Bonds

Investments

$

24,478

$

$

$

24,478

Bifurcated embedded derivative

Loan receivable from equity method investee

$

$

$

584

$

584

Liabilities

Public Warrants

Warrant liabilities

$

1,476

$

$

$

1,476

Private Placement Warrants

Warrant liabilities

$

$

514

$

$

514

13

Table of Contents

December 31, 2025

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

  ​ ​ ​

Total

Assets

Balance Sheet Classification

Commercial Paper

Marketable securities

$

62,167

$

$

$

62,167

Corporate Bonds

Marketable securities

$

122,941

$

$

$

122,941

Government Bonds

Marketable securities

$

39,053

$

$

$

39,053

U.S. Treasuries

Marketable securities

$

5,017

$

$

$

5,017

Corporate Bonds

Investments

$

63,187

$

$

$

63,187

Government Bonds

Investments

$

22,479

$

$

$

22,479

Bifurcated embedded derivative

Loan receivable from equity method investee

$

$

$

584

$

584

Liabilities

Public Warrants

Warrant liabilities

$

9,911

$

$

$

9,911

Private Placement Warrants

Warrant liabilities

$

$

3,970

$

$

3,970

The change in fair value of the Company’s marketable securities and investments are included in Other Comprehensive Income (Loss) in the Company’s Condensed Consolidated Statements of Operations and Comprehensive Income (Loss). There were no transfers in and out of Level 3 fair value hierarchy during the three and six months ended June 30, 2026 or year ended December 31, 2025. During the six months ended June 30, 2026 and 2025, the Company purchased $245,450 and $101,690 of available-for-sale securities, respectively.

Fair Value of Bifurcated Embedded Derivative

The fair value of the bifurcated embedded derivative (the “Derivative”) has been estimated using the with-and-without method as of June 30, 2026 using Level 3 unobservable inputs and Level 2 directly or indirectly observable inputs, including estimated credit rating, risk-free interest rates, and expected future cash flows. Material increases or decreases in any of those inputs may result in a significantly higher or lower fair value measurement. See Note 12 – Related Party Transactions for more information.

Fair Value of Public Warrants and Private Placement Warrants

The fair value of the private placement warrants issued as part of the Company’s business combination in 2021 (the “Private Placement Warrants”) have been estimated using a Black-Scholes model as of June 30, 2026 and December 31, 2025. The estimated fair value of the Private Placement Warrants is determined using Level 2 directly or indirectly observable inputs. Inherent in a Black-Scholes model are assumptions related to expected stock-price volatility, expected life, risk-free interest rate, and dividend yield. Material increases (or decreases) in any of those inputs may result in a significantly higher (or lower) fair value measurement. The Company estimates the volatility of its Private Placement Warrants based on implied volatility from the Company’s publicly-traded warrants (the “Public Warrants” and, together with the Private Placement Warrants, the “Warrants”) and from historical volatility of select peer companies’ common stock that matches the expected remaining life of the Warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield curve for a maturity similar to the expected remaining life of the Warrants. The dividend yield is based on the historical rate, which the Company anticipates remaining at zero. The fair value of the Public Warrants has been measured based on the quoted price of such warrants on the Nasdaq Stock Market, a Level 1 input.

The following table provides quantitative information regarding Level 2 inputs used in the recurring valuation of the Private Placement Warrants as of their measurement dates.

  ​ ​ ​

June 30, 2026

  ​ ​ ​

December 31, 2025

 

Exercise price

$

11.50

$

11.50

Stock price

$

2.59

$

4.25

Volatility

 

138.0

%  

 

114.5

%

Term (in years)

 

0.44

 

0.94

Risk-free rate

 

3.90

%  

 

3.43

%

14

Table of Contents

The following table provides a roll forward (per Warrant) of the Public Warrants measured at fair value using Level 1 inputs and Private Placement Warrants measured at fair value using Level 2 inputs.

Public Warrants

Private Placement Warrants

  ​ ​ ​

Level 1 Fair Value

  ​ ​ ​

Level 2 Fair Value

December 31, 2025

$

0.71

$

0.74

Change in fair value

$

(0.49)

$

(0.52)

March 31, 2026

$

0.22

$

0.22

Change in fair value

$

(0.12)

$

(0.12)

June 30, 2026

$

0.10

$

0.10

See Note 7 – Warrants for more information.

Note 7 – Warrants

Public Warrants and Private Placement Warrants

The table below provides a summary of the outstanding Public and Private Placement Warrants classified as a liability.

  ​ ​ ​

June 30, 2026

  ​ ​ ​

December 31, 2025

Public Warrants

14,425,294

13,958,836

Private Placement Warrants

4,908,009

5,374,467

Each whole Warrant entitles the holder thereof to purchase one share of common stock at a price of $11.50 per share, subject to customary adjustments. Only whole Warrants are exercisable. The Warrants became exercisable on January 7, 2022 and will expire on December 8, 2026.

None of the Private Placement Warrants are redeemable by the Company so long as they are held by the initial purchasers of the Private Placement Warrants or their permitted transferees. The table below provides the fair value of warrant liabilities at:

  ​ ​ ​

June 30, 2026

  ​ ​ ​

December 31, 2025

Fair value of warrant liabilities

$

1,990

$

13,881

The table below provides the gain (loss) recognized in connection with changes in fair value of warrant liabilities at:

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Gain (Loss) recognized associated with warrant liabilities

$

2,250

$

(3,216)

$

11,891

$

2,663

There have been no changes to the terms of the Public or Private Placement Warrants disclosed in the 2025 Form 10-K.

Pre-Funded Warrants and Common Warrants

In January 2026, the Company issued pre-funded warrants (the “Pre-Funded Warrants”) to purchase an aggregate of 5,807,018 shares of common stock and warrants (the “Common Warrants”) to purchase up to an aggregate of 45,614,036 shares of common stock. As of June 30, 2026, there were no Pre-Funded Warrants outstanding and there were Common Warrants to purchase an aggregate of 45,614,036 shares of common stock outstanding. The Common Warrants are classified in equity and are not measured at fair value and are not remeasured each reporting period. See Note 8 – Stockholders’ Equity for additional information.

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Table of Contents

Note 8 – Stockholders’ Equity

Common Stock

Stock options exercised for common stock and shares of common stock issued upon vesting of restricted stock units (“RSUs”) for the three and six months ended June 30, 2026 and 2025 are summarized in the table below.

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Stock options exercised

350,757

42,494

1,883,177

Shares of common stock issued under the ESPP

151,197

180,091

151,197

180,091

Shares of common stock issued for vested RSUs

2,546,622

1,096,546

3,035,356

1,648,374

Shares of common stock repurchased

(3,361,396)

(3,361,396)

The table below presents the cash received or paid associated with common stock related activities for the three and six months ended June 30, 2026 and 2025.

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

  ​ ​ ​

2025

Cash received from stock options exercised

$

$

478

$

6

$

659

Cash received from shares of common stock issued under the ESPP

370

156

370

156

Cash paid for shares of common stock repurchased

(3,592)

(3,592)


At-the-Market Offering

On September 5, 2025, the Company entered into an Equity Distribution Agreement (the “Distribution Agreement”) with Oppenheimer & Co. Inc., serving as agent (“Oppenheimer”), with respect to an at-the-market offering program (the “ATM”) under which the Company may offer and sell, from time to time, shares of its common stock having an aggregate offering price of up to $150,000 through Oppenheimer. During the three and six months ended June 30, 2026, the Company did not sell any shares of common stock under the Distribution Agreement. As of June 30, 2026, approximately $58,785 remained available for future sales under the Distribution Agreement.

Registered Direct Offering

On January 28, 2026, the Company entered into a securities purchase agreement with a single sector-focused institutional investor for the direct offering of 17,000,000 shares of its common stock, Pre-Funded Warrants to purchase an aggregate of 5,807,018 shares of common stock, and Common Warrants to purchase up to an aggregate of 45,614,036 shares of common stock. The common stock was purchased at a price of $5.70 per share of common stock and accompanying two Common Warrants and the Pre-Funded Warrants were purchased at a price of $5.6999 per Pre-Funded Warrant and accompanying two Common Warrants. The Common Warrants issued are immediately exercisable at an exercise price of $7.25 per share and will expire on January 31, 2033. Proceeds, net of fees and expenses, received by the Company totaled $121,345. Issuance costs totaled $8,654 and are recorded in additional paid-in capital. The Company intends to use the net proceeds from the registered direct offering for working capital and general corporate purposes. As of June 30, 2026, all Pre-Funded Warrants have been exercised and all proceeds to the Company are recorded in additional paid-in capital.

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Table of Contents

Stock Repurchase Program

On January 23, 2024, the Company announced that its Board of Directors approved a stock repurchase program (“Program”) authorizing the Company to purchase up to $50,000 of the Company’s outstanding common stock. The Program expired on December 31, 2025.

The table below presents the number of shares repurchased and retired, the principal, commissions, and total cash paid to repurchase and retire shares of common stock, the excise tax, and the average purchase price per share for the three and six months ended June 30, 2025:

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2025

2025

Repurchased and retired shares of common stock

3,361,396

3,361,396

Principal paid to repurchase and retire shares of common stock

3,525

3,525

Commissions paid to repurchase and retire shares of common stock

67

67

Total cash paid to repurchase and retire shares of common stock

(3,592)

(3,592)

Excise tax accrued

35

35

Average price paid per share (including commissions)

$

1.07

$

1.07

Note 9 – Stock-Based Compensation

There have been no changes to the Solid Power, Inc. 2014 Equity Incentive Plan (the “2014 Plan”), the Solid Power, Inc. 2021 Equity Incentive Plan (the “2021 Plan”), the Solid Power, Inc. 2021 Employee Stock Purchase Plan (“ESPP”), the Company’s accounting for stock-based compensation under those plans, or the restricted stock grants to two Dahae executives, as disclosed in the 2025 Form 10-K.

The fair value of stock options and RSUs under the 2021 Plan is recognized as compensation expense over the vesting period of the award. The Company accounts for forfeitures as they occur.

For the three and six months ended June 30, 2026 and 2025, the Company recognized compensation costs totaling:

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Stock-based compensation costs related to RSUs

$

2,675

$

1,435

$

4,883

$

2,487

Stock-based compensation costs related to stock options

 

364

 

634

 

739

 

1,358

Stock-based compensation costs related to the ESPP

94

84

217

138

Total stock-based compensation costs

$

3,133

$

2,153

$

5,839

$

3,983

Unrecognized future compensation costs as of June 30, 2026 were $27,679. The Company expects to recognize the future compensation cost over a weighted-average period of 2.9 years, amortized over a straight-line basis.

17

Table of Contents

The following table summarizes the Company’s award activity for RSUs and stock options for the three and six months ended June 30, 2026:

RSUs

Stock Options

Balance at December 31, 2025

13,328,190

12,320,074

Granted

65,325

Vested or Exercised

(572,465)

(42,494)

Forfeited

(39,896)

Expired

Balance at March 31, 2026

12,781,154

12,277,580

Granted

4,087,324

Vested or Exercised

(3,138,140)

Forfeited

(411,100)

Expired

Balance at June 30, 2026

13,319,238

12,277,580

Restricted Stock Grants to Dahae Executives

On October 21, 2024, the Company issued 298,508 shares of restricted stock to two executive employees of Dahae pursuant to the provisions of Regulation S under the Securities Act of 1933, as amended. This issuance was not under any existing plan. The restricted stock vests over a four-year period, subject to forfeiture upon the applicable stockholder ceasing to provide services to Dahae or upon Dahae’s default on the financing instruments entered into between the Company and Dahae on October 21, 2024. As of June 30, 2026, 186,847 shares vested. Stock-based compensation expense is recognized within Share of net income (loss) of equity method investee in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss). No additional shares of restricted stock are authorized for issuance to Dahae executives.

Note 10 – Basic and Diluted Loss Per Share

The table below sets forth the basic and diluted loss per share calculation for the three and six months ended June 30, 2026 and 2025.

Three Months Ended June 30, 

Six Months Ended June 30, 

  ​ ​ ​

2026

2025

2026

2025

Net loss attributable to common stockholders

$

(23,821)

$

(25,338)

$

(36,849)

$

(40,488)

Weighted average shares outstanding – basic and diluted

225,974,899

180,343,931

221,661,211

180,871,314

Basic and diluted loss per share

$

(0.11)

$

(0.14)

$

(0.17)

$

(0.22)

Basic weighted average shares outstanding for the three months ended June 30, 2026 and 2025 include 0 shares issuable upon exercise of the Pre-Funded Warrants. Basic weighted average shares outstanding for the six months ended June 30, 2026 and 2025 include 889,794 and 0 shares issuable upon exercise of the Pre-Funded Warrants, respectively. Because the Pre-Funded Warrants can be exercised for a nominal exercise price of $0.0001 per share, the shares issuable upon exercise of the Pre-Funded Warrants are deemed to be issued for purposes of calculating basic earnings per share. Due to the net loss for the three and six months ended June 30, 2026 and 2025, diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been anti-dilutive. The table below sets forth (in shares) potentially dilutive securities excluded from the diluted loss per share calculation.

18

Table of Contents

Six Months Ended June 30, 

2026

  ​ ​ ​

2025

Public Warrants and Private Placement Warrants

19,333,303

 

19,333,303

Common Warrants

38,557,721

2014 Plan & 2021 Plan - Stock Options

12,286,647

 

17,093,207

2021 Plan - RSUs

13,742,805

 

9,210,606

ESPP - Common Stock

47,594

47,949

Restricted stock grants to Dahae executives

130,783

70,179

Total potentially dilutive securities

84,098,853

45,755,244

Note 11 – Leases

The Company leases its facilities and certain equipment. Fixed rent for the Company’s facilities escalates each year, and the Company is responsible for a portion of the landlords’ operating expenses such as property tax, insurance, and common area maintenance.

The Company’s facility in Louisville, Colorado is under a noncancelable operating lease with a maturity date in December 2029. In 2022, the Company amended this operating lease to incorporate a prior subleased space into the base lease and extend the term of the lease. In 2024, the Company amended this operating lease to incorporate additional space and further extend the term of the lease. The Company has the right to renew this operating lease for an additional five-year period.

On September 1, 2021, the Company entered into an industrial operating lease agreement for its facility in Thornton, Colorado, with the initial term through March 31, 2029. Under this operating lease, the Company has one option to renew for five years, which has been included in the calculation of lease liabilities and right-of-use assets as the exercise of the option is reasonably certain. As the renewal rent has not been negotiated, the Company used an estimated rent rate which approximated the fair market rent at adoption of ASC 842 on January 1, 2022 for the extension period.

The Company has certain equipment leases classified as finance leases as of June 30, 2026. In the Condensed Consolidated Balance Sheets, the Company records its right-of-use finance lease assets, net within Other assets, records its short-term finance lease liabilities within Accounts payable and other accrued liabilities, and records its long-term finance lease liabilities within Other liabilities.

The Company’s leases do not have any contingent rent payments and do not contain residual value guarantees.

The components of lease expense are as follows:

  ​ ​ ​

Three Months Ended June 30, 

  ​ ​ ​

Six Months Ended June 30, 

  ​ ​ ​

2026

2025

  ​ ​ ​

2026

2025

Finance lease costs:

 

  ​

 

Amortization of right-of-use assets

$

52

$

199

$

118

$

303

Interest on lease liabilities

 

3

 

7

 

7

 

15

Operating lease costs

 

376

 

376

 

752

 

752

Total lease expense

$

431

$

582

$

877

$

1,070

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Table of Contents

The components of cash flow information related to leases are as follows:

  ​ ​ ​

Three Months Ended June 30, 

  ​ ​ ​

Six Months Ended June 30, 

  ​ ​ ​

2026

2025

  ​ ​ ​

2026

2025

Operating outgoing cash flows – finance leases

$

3

$

7

$

7

$

15

Financing outgoing cash flows – finance leases

 

44

 

82

 

96

 

165

Operating outgoing cash flows – operating leases

 

349

 

338

 

699

 

669

Right-of-use assets obtained in exchange for new, modified, and remeasured finance lease liabilities:

(1)

Right-of-use assets obtained in exchange for new, modified, and remeasured operating lease liabilities:

15

The supplemental balance sheet information related to leases is as follows:

  ​ ​ ​

June 30, 2026

 

Finance lease

 

Weighted-average remaining lease term – finance leases (in years)

 

1.4

Weighted-average discount rate – finance leases

 

6.7

%

Operating lease

 

Weighted-average remaining lease term – operating leases (in years)

 

6.6

Weighted-average discount rate – operating leases

 

6.3

%

As of June 30, 2026, future minimum payments during the next five years and thereafter are as follows:

Fiscal year

  ​ ​ ​

Finance Lease

  ​ ​ ​

Operating Lease

2026 (remaining six months)

77

704

2027

85

1,448

2028

16

1,494

2029

1,548

2030

903

Thereafter

3,128

Total

178

9,225

Less present value discount

(7)

(1,691)

Total lease liabilities

$

171

$

7,534

Note 12 – Related Party Transactions

BMW of North America LLC

During 2022, the Company amended its joint development agreement (“JDA”) with BMW of North America LLC (“BMW”) to provide a research and development-only license to certain of the Company’s intellectual property relating to cell manufacturing. The license allows, among other things, BMW to install a solid-state prototype cell manufacturing line based on the Company’s proprietary information. The license is limited to BMW’s research and development activities and may not be used for commercial battery cell production. During 2024, the Company further amended its JDA with BMW to extend the term of the JDA, revise the payment schedule, and revise certain deliverables and the timing to achieve various milestone and development targets and confirm cell performance requirements.

Before BMW’s installation of its cell manufacturing line, the Company and BMW have agreed to joint development and manufacturing activities at the Company’s facilities. Any intellectual property developed jointly by the Company and BMW at the Company’s facilities will be solely owned by the Company. To the extent intellectual property is jointly conceived elsewhere, the Company and BMW will jointly own such intellectual property. The intellectual property developed by us or BMW individually will be owned by such party. Both parties will have the right to utilize the other party’s technical improvements for research and

20

Table of Contents

development purposes only. The Company, with certain limitations, has the right to cause BMW to license BMW’s technical improvements to the Company for commercial purposes.

BMW paid the Company $20,000 between December 2022 and June 2025, subject to the Company achieving certain milestones. During the three and six months ended June 30, 2026 and 2025, the Company recognized $0 of revenue related to its JDA. In addition, the Company recognized $92 and $92 of revenue for the three and six months ended June 30, 2026, respectively, from the sale of electrolyte to BMW. During the three and six months ended June 30, 2025, the Company recognized $0 and $132, respectively, from the sale of certain cell materials and electrolyte to BMW.

Dahae Energy Co., Ltd.

During 2024, the Company entered into a series of transactions with Dahae, a strategic partner in the Republic of Korea. Dahae provides process engineering support for the Company’s pilot cell lines and is serving as the installer for installation of a pilot cell manufacturing line at SK On’s facility. The transactions included, among other things, a bond (the “Bond”) with detachable warrants (the “Detachable Warrants”) and the Derivative, restricted stock grants to two Dahae executives, and a term loan facility. During the three and six months ended June 30, 2026, the Company incurred $914 and $1,671 of costs related to services provided by Dahae, respectively. During the three and six months ended June 30, 2025, the Company incurred $2,884 and $4,285 of costs related to services provided by Dahae, respectively.

The Company acquired a 20% equity interest in Dahae for $656 (including $256 of transaction costs) and recorded the investment using the equity method of accounting.

As of June 30, 2026 and December 31, 2025, the Bond had an unamortized discount of $1,726 and $1,796, respectively.

The Company recorded the Detachable Warrants within Investments in the Condensed Consolidated Balance Sheets at a fair value upon acquisition of $607. The Detachable Warrants are fully detachable from the Bond and can be exercised for shares of Dahae’s common stock. If the Company were to exercise the Detachable Warrants in full, the Company would own 40% of the then outstanding shares of common stock of Dahae. As of June 30, 2026 and December 31, 2025, there were no impairments or downward or upward adjustments to Detachable Warrants since acquisition.

The Company granted 298,508 shares of restricted stock to two Dahae executives, of which 186,847 shares vested as of June 30, 2026. The restricted stock grants are subject to redemption at fair value once all shares are fully vested and any financing provided by the Company to Dahae has been repaid. As the restricted stock grants are contingently redeemable at fair value, the restricted stock grants are recorded within Mezzanine Equity in the Condensed Consolidated Balance Sheets. To adjust these grants to redemption amounts at each reporting period, the Company remeasures the grants to their redemption value based on the price of the Company’s common stock, with a corresponding entry to the Company’s retained earnings. The remeasurement for the six months ended June 30, 2026 and year ended December 31, 2025 was $23 and $323, respectively.

The Company entered into a term loan facility with Dahae. Dahae drew upon the facility on November 3, 2024, with a principal balance of $1,161 issued at par, explicit interest rate of 3%, and maturity date of October 21, 2034. The loan is recorded within Loan receivable from equity method investee in the Condensed Consolidated Balance Sheets.

All financing agreements between the Company and Dahae are collateralized by Dahae’s assets and a minority equity interest in Dahae. The Company has committed to provide up to $2,000 of additional financing to Dahae under the term loan facility. Dahae has not drawn on the equipment financing under the term loan facility. The financing lease expires October 21, 2029.

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The table below presents the summarized transactions recorded in the Condensed Consolidated Balance Sheets related to the Company’s equity method investment for the periods presented. The transactions reflected in the table below coupled with the term loan facility of $2,000 represent the maximum loss exposure as a result of the Company’s involvement with Dahae as of June 30, 2026.

June 30, 2026

  ​ ​ ​

December 31, 2025

Bond

$

3,306

$

3,236

Loan

1,021

1,161

Warrants

607

607

Equity method investment (a)

974

724

Mezzanine equity

406

470

(a)The change in equity method investment from December 31, 2025 to June 30, 2026 reflects the Company’s 20% proportionate share of Dahae’ earnings, which resulted in the recognition of gains of $97 and $53 during the three and six months ended June 30, 2026, respectively, as well as the currency translation adjustment for the three and six months ended June 30, 2026 of $(258) and $(408), respectively, related to the conversion from South Korean Won to U.S. dollar.

The table below presents the summarized transactions recorded in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) related to the Company’s equity method investment for the three and six months ended June 30, 2026 and 2025, respectively.

Three Months Ended June 30, 

Six Months Ended June 30, 

2026

2025

2026

2025

Interest income

$

77

$

74

$

153

$

147

Share of net income (loss) of equity method investee

68

536

(4)

606

Other comprehensive income (loss)

(258)

78

(408)

45

Note 13 – Income Taxes

The Company’s effective tax rate was 0.3% and 0% for the three months ended June 30, 2026 and 2025, respectively, as a result of withholding tax expense on revenue earned in a foreign jurisdiction. The Company’s effective tax rate was 0% and 0% for the six months ended June 30, 2026 and 2025, respectively. The Company was in a full valuation allowance for the six months ended June 30, 2026 and the year ended December 31, 2025.

The Company's quarterly provision for income taxes is calculated by applying a projected annual effective tax rate, calculated separately for the United States and Republic of Korea, to ordinary pre-tax book income.

On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted in the United States. The OBBBA includes, among other things the permanent extension of certain provisions of the U.S. Tax Cuts and Jobs Act of 2017, modifications to the United States’ international tax framework, restoration of favorable tax treatment for certain business provisions, and acceleration of the phase-out of EV credits. The OBBBA contains a variety of effective dates, with certain provisions effective in 2025 and others implemented through 2027. The OBBBA did not have a material impact on the reported results of operations.

Note 14 – Contingencies

The Company may be party to litigation from time to time in the normal course of business. The Company maintains insurance to cover certain actions and believes that resolution of such litigation will not have a material adverse effect on the Company.

On December 3, 2024, two purported stockholders filed a putative class action against the former officers and directors of Decarbonization Plus Acquisition Corporation III (“DCRC”), including Erik Anderson; Riverstone Holdings, LLC; and related sponsors and entities (the “Hamilton Defendants”) in the Court of Chancery of the State of Delaware (Hamilton et al. v. Anderson et al., C.A. No. 2024-1241-JTL). The lawsuit alleges breach of fiduciary duties and unjust enrichment arising from the merger of Solid Power Operating, Inc. with a subsidiary of DCRC and seeks to recover unspecified damages and equitable relief. None of the

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Company, its subsidiaries, or its current officers or directors, except Mr. Anderson, is named as a defendant. The Hamilton Defendants have demanded indemnification and advancement of defense costs from the Company. Accordingly, it is reasonably possible that the Company could be liable for the legal fees, defense costs, judgments, and/or settlement fees incurred by certain of the Hamilton Defendants. The proceedings are subject to uncertainties inherent in the litigation process, and the Company cannot currently estimate a reasonably possible loss.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the condensed consolidated financial statements and related notes thereto included elsewhere in this Report. The following discussion contains forward-looking statements that reflect future plans, estimates, beliefs, and expected performance. For additional discussion, see “Cautionary Note Regarding Forward-Looking Statements” above. The forward-looking statements are dependent upon events, risks, and uncertainties that may be outside of our control. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below and those discussed elsewhere in this Report, and in “Part I, Item 1A. Risk Factors” of the 2025 Form 10-K, as such descriptions may be updated or amended in future filings we make with the SEC. Unless indicated otherwise, the following discussion and analysis of results of operations and financial condition and liquidity relates to our current continuing operations and should be read in conjunction with the consolidated financial statements and notes thereto of this Report and the 2025 Form 10-K. We do not undertake, and expressly disclaim, any obligation to publicly update any forward-looking statements, whether as a result of new information, new developments, or otherwise, except to the extent that such disclosure is required by applicable law.

Overview

Solid Power is a U.S.-based leader in solid-state battery technology and manufacturing processes. Our core technology is a sulfide-based solid electrolyte material, which replaces the liquid or gel electrolyte used in traditional lithium-ion battery cells. We believe our electrolyte technology has the potential to enable a step-change improvement in battery cell performance beyond what is currently achievable in conventional lithium-ion battery cells, including improved energy density, battery life, and safety performance. We are currently targeting the battery electric vehicle market due to the size and perceived demand for next generation battery technology but believe our technologies can have a broader application as the market matures.

2026 Development Objectives

We made progress on our 2026 development objectives as the solid-state battery landscape continues to evolve. Below is a summary of recent progress towards our goals.

Strengthen relationships with our partners through continued execution – We completed the line installation agreement with SK On Co., Ltd. (“SK On”) in April 2026, and received the associated milestone payment in May 2026. We are currently negotiating with SK On regarding a new collaboration agreement, which would replace or amend the existing research and development technology license agreement with SK On (the “SK On R&D license”). 
Continue executing on our electrolyte development roadmap – We continued construction on our continuous manufacturing pilot line for sulfide electrolyte production. Installation of major equipment continues to advance in preparation for equipment acceptance testing, which remains on track for completion by the end of the third quarter of 2026. Plant validation and operational startup remain planned for the fourth quarter of 2026. Separately, we advanced discussions with industry leading partners regarding a potential joint venture for commercial-scale electrolyte production in the Republic of Korea. Finally, we completed the Stage 1 audit for ISO 9001 certification.
Promote electrolyte product competitiveness – We improved our performance and provided shipments of electrolyte under our Joint Evaluation Agreement with Samsung SDI Co., Ltd. and BMW AG and continued sampling electrolyte to other customers. As the initial phase of our joint evaluation agreement expires September 30, 2026, we are optimistic, based on our electrolyte’s performance and cost, about continuing to work with Samsung SDI for possible use in electric vehicles and other potential applications of ASSB technologies.

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Remain fiscally disciplined We remained fiscally disciplined, balancing financial discipline with appropriate investments in technology developments and process improvements. We remain on track to deliver cash investments within our current year guidance range. See “—Results of Operations” and “—Liquidity and Capital Resources” for more information.

Key Factors Affecting Operating Results

We are a research and development-stage company and have not generated cash flows through the sale of our electrolyte or licensing of our cell designs to adequately cover our costs. Our ability to commercialize our products depends on several factors that present significant opportunities but also pose material risks and challenges, including those discussed in the “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” sections of this Report, which are incorporated by reference.

Prior to reaching commercialization, we must improve our products to ensure they meet the performance requirements of our customers. We also will have to negotiate commercial agreements with our customers on terms and conditions that are mutually acceptable. To satisfy anticipated demand, we will need to scale production of our electrolyte. All of these will take time, require capital, and affect our operating results. Since many factors are difficult to quantify, our actual operating results may be different than currently anticipated.

Revenue generated to date has primarily come from performance on research and development licensing agreements, line installation agreement, and government contracts. We will need to continue to deploy substantial capital to expand our production capabilities and engage in research and development programs. We also expect to continue to incur administrative expenses as a publicly traded company.

In addition to meeting our development goals, commercialization and future growth and demand for our products are highly dependent upon consumers adopting EVs. The market for new energy vehicles is still rapidly evolving due to emerging technologies, competitive pricing, government regulation and industry standards, and changing consumer demands and behaviors.

Basis of Presentation

We currently conduct our business through one operating segment and one reportable segment. As a research and development company with no commercial operations, our activities to date have been limited and were conducted primarily in the United States and the Republic of Korea. Our historical results are reported under U.S. generally accepted accounting principles and in U.S. dollars.

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Results of Operations

Comparison of the Three and Six Months Ended June 30, 2026 to the Three and Six Months Ended June 30, 2025

During the three and six months ended June 30, 2026, our capital and operational investments supported our key 2026 development objectives.

Three Months Ended June 30, 

Change

Six Months Ended June 30, 

Change

2026

  ​ ​ ​

2025

$

%

2026

  ​ ​ ​

2025

$

%

Revenues and Grant Income

Revenue

$

(1,017)

$

6,485

$

(7,502)

(116)%

$

1,088

$

11,609

$

(10,521)

(91)%

Grant income

749

1,055

(306)

(29)%

1,717

1,947

(230)

(12)%

Total revenue and grant income

(268)

7,540

(7,808)

(104)%

2,805

13,556

(10,751)

(79)%

Operating Expenses

Direct costs

2,119

8,462

(6,343)

(75)%

5,667

11,158

(5,491)

(49)%

Research and development

19,363

18,342

1,021

6%

37,111

37,363

(252)

(1)%

Selling, general and administrative

8,539

6,607

1,932

29%

16,661

14,934

1,727

12%

Total operating expenses

30,021

33,411

(3,390)

(10)%

59,439

 

63,455

 

(4,016)

(6)%

Operating Loss

(30,289)

(25,871)

(4,418)

17%

(56,634)

 

(49,899)

 

(6,735)

13%

Nonoperating Income and Expense

Interest income

4,172

3,237

935

29%

8,184

6,836

1,348

20%

Change in fair value of warrant liabilities

2,250

(3,216)

5,466

(170)%

11,891

2,663

9,228

347%

Interest expense

(9)

(7)

(2)

29%

(206)

(15)

(191)

1273%

Other expense

(93)

(151)

58

(38)%

(75)

(673)

598

(89)%

Total nonoperating income and expense

6,320

(137)

6,457

(4,713)%

19,794

 

8,811

 

10,983

125%

Pretax Loss

$

(23,969)

$

(26,008)

$

2,039

(8)%

$

(36,840)

$

(41,088)

$

4,248

(10)%

Income tax expense (income)

(79)

6

(85)

(1,417)%

5

6

(1)

(17)%

Share of net loss (income) of equity method investee

(69)

(676)

607

(90)%

4

(606)

610

(101)%

Net Loss Attributable to Common Stockholders

$

(23,821)

$

(25,338)

$

1,517

(6)%

$

(36,849)

$

(40,488)

$

3,639

(9)%

Other Comprehensive Income (Loss)

(552)

13

(565)

(4,346)%

(1,958)

185

(2,143)

(1,158)%

Comprehensive Loss Attributable to Common Stockholders

$

(24,373)

$

(25,325)

$

952

(4)%

$

(38,807)

$

(40,303)

$

1,496

(4)%

Revenue and Grant Income

Revenue recognized consists of performance on our non-government contracts as well as certain government contracts. Grant income recognized consisted of performance on our assistance agreement, dated January 1, 2025 (as amended effective May 15, 2025 and amended and restated effective January 1, 2026, the “Assistance Agreement”), with the U.S. Department of Energy (“DOE”).

We recognized $(1.0) million and $1.1 million of revenue for the three and six months ended June 30, 2026, respectively. The revenue mostly consisted of performance on the SK On R&D license, line installation agreement, and electrolyte supply agreement with SK On (collectively, the SK On Agreements). During the second quarter of 2026, we completed the line installation agreement and received the associated final milestone payment. We recorded a $1.2 million reversal of previously recognized revenue through a cumulative catch-up adjustment. The adjustment was driven by a change in assumptions connected to our constraint on variable consideration within certain milestone payments under the SK On R&D license agreement.

We recognized $0.7 million and $1.7 million of government grant income for the three and six months ended June 30, 2026. Government grant income consists of grant income from the Assistance Agreement. The Assistance Agreement provides that the DOE will provide us with funding of up to $50 million for our installation of equipment necessary for the continuous production of sulfide-based solid electrolyte material. During the three and six months ended June 30, 2026, we continued construction of the continuous electrolyte production pilot line.

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Total revenue and grant income decreased $7.8 million and $10.8 million for the three and six months ended June 30, 2026 compared to the three and six months ended June 30, 2025 largely due to the timing of performance milestones achieved under our customer arrangements in the prior year and, to a lesser extent, the $1.2 million cumulative catch-up adjustment. For the remainder of 2026, we expect revenue recognition to continue to decrease relative to prior year periods as we focus on our construction of the continuous electrolyte production pilot line, and provide electrolyte to our partners and customers.

Operating Expenses

Operating expenses decreased $3.4 million and $4.0 million in the three and six months ended June 30, 2026 compared to the three and six months ended June 30, 2025 primarily due to the reduction in spend on the SK On Agreements as the milestone achievements were larger in the prior year.

Direct Costs

Direct costs, which include labor, subcontractor, and material costs incurred in support of revenue-generating projects, decreased $6.3 million and $5.5 million for the three and six months ended June 30, 2026 compared to the same periods in 2025. The decrease was mainly driven by the timing of milestone achievements under our collaborative agreements.

Research and Development

Research and development expenses consist of employee compensation and benefits for personnel engaged in research, engineering, manufacturing, chemistry, and technical operations. Research and development expenses also include costs related to our facilities and depreciation associated with plant and equipment used in our development activities.

Research and development expenses did not change materially for the three and six months ended June 30, 2026 compared to the same period in 2025.

Selling, General and Administrative

Selling, general and administrative expenses are largely comprised of employee compensation and personnel-related costs for our administrative functions as well as costs driven by insurance and regulatory requirements. Selling, general and administrative expenses increased $1.9 million and $1.7 million in the three and six months ended June 30, 2026 compared to the same periods in 2025. This increase was driven by higher tax and facilities-related costs and timing of spend on strategic consulting projects.

Nonoperating Income and Expense

Nonoperating income and expense includes interest income, the non-cash impact from the change in the fair value of our warrant liabilities, and other immaterial income and expense items. For the three and six months ended June 30, 2026, nonoperating income and expense increased $6.5 million and $11.0 million compared to the same periods in 2025 due to the change in fair value of warrant liabilities and the change in interest income earned.

The change in the fair value of warrant liabilities for the three months ended June 30, 2026 caused a $2.3 million gain compared to the three months ended June 30, 2025 where the change in the fair value caused a loss of $3.2 million. The change in the fair value of warrant liabilities for the six months ended June 30, 2026 caused a $11.9 million gain compared to the six months ended June 30, 2025 where the change in the fair value caused a gain of $2.7 million.

Interest income earned increased $0.9 million and $1.3 million for the three and six months ended June 30, 2026 compared to the same period in 2025 which was driven by the increase in the available-for-sale securities available to earn interest.

Liquidity and Capital Resources

Sources of Liquidity

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The sale of equity has historically been our primary source of cash, with a smaller portion of cash coming from achievement of performance milestones under agreements with our partners and government contracts. We also receive cash from the interest earned on our available-for-sale securities.

As of June 30, 2026 and December 31, 2025, we had total liquidity, as set forth below:

(in thousands)

  ​ ​ ​

June 30, 2026

December 31, 2025

Cash and cash equivalents

$

24,284

$

21,607

Available-for-sale securities

 

395,042

 

314,843

Total liquidity

$

419,326

$

336,450

As of June 30, 2026, total liquidity, which includes all cash and cash equivalents as well as our available-for-sale securities, was $419.3 million, an increase of $82.9 million compared to December 31, 2025. As of June 30, 2026, contract assets and accounts receivables were $3.2 million, total current liabilities were $17.2 million, and we continued to have no debt.  

Short-Term Liquidity Requirements

Our short-term liquidity requirements include operating and capital expenses needed to further our research and development programs and to install our continuous electrolyte production pilot line. We anticipate that our most significant capital expenditures for the remainder of the year will relate to construction of our continuous electrolyte production pilot line as well as improvements to our cell development capabilities. We believe that our cash, cash equivalents, and available-for-sale securities are sufficient to meet our operating cash needs and working capital and capital expenditure requirements for a period of at least the next 12 months.

Long-Term Liquidity Requirements

Longer term, we may require additional liquidity prior to being able to generate adequate cash flows from electrolyte sales and/or licensing activities. We also may require funding if there are material changes to our business conditions or other developments, including changes to our operating plan; development progress or delays; negotiations with OEMs, cell manufacturers, or other customers; market adoption of EVs or other markets; supply chain challenges; competitive pressures; government regulations, including tariffs; and inflation. To the extent that our resources, including our ability to use the ATM to generate additional proceeds, are insufficient to satisfy our cash requirements, we may need to seek equity or debt financing. We also may opportunistically seek to enhance our liquidity through equity or debt financing, if such financing becomes available to us on terms that we consider favorable. If financing is not available, or if the terms of financing are less desirable than we expect, we may be forced to take actions to reduce our capital or operating expenditures, which may adversely affect our development, business, operating results, financial condition and prospects. 

At-the-Market Offering

On September 5, 2025, we entered into an Equity Distribution Agreement (the “Distribution Agreement”) with Oppenheimer & Co. Inc., serving as agent (“Oppenheimer”), with respect to the ATM under which we may offer and sell, from time to time, shares of our common stock having an aggregate offering price of up to $150.0 million through Oppenheimer.

During the three and six months ended June 30, 2026, we did not sell any shares of common stock under the Distribution Agreement. As of June 30, 2026, approximately $58.8 million remained available for future sales under the Distribution Agreement.

Stock Repurchase Program

On January 23, 2024, we announced that our Board approved a stock repurchase program authorizing us to purchase up to $50 million of our outstanding common stock.  During the six months ended June 30, 2025, we repurchased 3,361,396 shares of common stock at an average price of $1.05 per share for an aggregate cost of approximately $3.53 million. The stock repurchase program expired on December 31, 2025.

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Registered Direct Offering

On January 28, 2026, we entered into a securities purchase agreement with a single sector-focused institutional investor for a registered direct offering of 17,000,000 shares of our common stock, pre-funded warrants to purchase an aggregate of 5,807,018 shares of common stock, and warrants to purchase up to an aggregate of 45,614,036 shares of common stock (the “registered direct offering”). Our proceeds, net of fees and expenses, totaled $121.3 million.

Cash Flows

The following table summarizes our cash flows from operating, investing, and financing activities for the periods presented:

Six Months Ended June 30, 

(in thousands)

  ​ ​ ​

2026

  ​ ​ ​

2025

Net cash and cash equivalents used in operating activities

$

(27,173)

$

(40,734)

Net cash and cash equivalents (used in) provided by investing activities

$

(89,619)

$

45,073

Net cash and cash equivalents provided by (used in) financing activities

$

119,469

$

(3,504)

Cash used in operating activities:

Cash used in operating activities for the six months ended June 30, 2026 decreased by $13.6 million compared to the six months ended June 30, 2025. This decrease was driven by the timing of our payments under annual contracts, which shifted from a beginning-of-year payment schedule to an end-of-year payment schedule, and higher collections from our partners, which increased by $4.5 million during the six months ended June 30, 2026 compared to the same period in the prior year.

The decrease was also attributable to cash used for employee compensation and related benefit costs, including the payment of annual performance-based incentive compensation. Cash used for employee compensation decreased by $1.7 million during the six months ended June 30, 2026 compared to the same period in the prior year.

Other cash used in operating activities during the six months ended June 30, 2026 related to facility operating costs, purchases of materials from suppliers, and hazardous waste removal. We expect cash used in operating activities for the remainder of the year to remain consistent on a quarterly basis as we continue to achieve our development objectives and focus on driving electrolyte product competitiveness.

Cash provided by (used in) investing activities:

Cash used in investing activities increased by $134.7 million in the six months ended June 30, 2026 compared to the six months ended June 30, 2025 due to changes in our proceeds from and purchases of available-for-sale securities and changes in capital expenditures.

Purchases of available-for-sale security activity increased $143.8 million in the six months ending June 30, 2026 compared to the same period in prior year. This change was driven by deployment of $121.3 million of proceeds, net of fees and expenses, from the registered direct offering into our investment portfolio.

Cash used for capital expenditures and intangibles increased $2.2 million in the six months ended June 30, 2026 compared to the six months ended June 30, 2025 due to timing of milestone payments on our capital projects. We anticipate cash used in investing for capital expenditures for the remainder of the year to increase as we continue to construct the continuous electrolyte production pilot line. 

Cash provided by (used in) financing activities:

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Cash provided by financing activities increased $123.0 million in the six months ended June 30, 2026 compared to the six months ended June 30, 2025. The increase was due to the proceeds of $121.3 million, net of fees and expenses, from the registered direct offering.

Off-Balance Sheet Arrangements

We are not a party to any off-balance sheet arrangements, as defined under SEC rules.

Critical Accounting Estimates

Except as set forth below, there have been no significant and material changes in our critical accounting policies and use of estimates during the six months ended June 30, 2026 as compared to those disclosed in “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsCritical Accounting Estimates” in the 2025 Form 10-K.

Collaborative Revenue

Description

Judgments and Uncertainties

Effect if Results Differ From Assumptions

We recognize revenue from our research and development collaboration agreements representing joint operating activities in accordance with ASC 808 Collaborative Arrangements. These agreements include the following components: parties to the contract are active participants, both parties are exposed to significant risks and rewards, and both parties are dependent on the commercial success of the efforts under the contract.

Our revenue recognition accounting methodology requires us to make significant estimates and assumptions, and to apply professional judgment.

Our collaborative arrangements recognize revenue over time using the input measurement method utilizing the cost-to-cost method to satisfy the combined performance obligation.

Contract costs include all direct labor, subcontract costs, costs for materials and indirect costs related to the contract performance that are allowable under the provisions of the contract. Collaborative revenues from fee-based contracts are recognized based on costs incurred to meet contractually defined milestones and deliverables along with our assessment of achievement of those measurable deliverables under the contract or based on appropriate over time methods.

If we were to change our judgments or estimates, it could cause a material increase or decrease in the amount of revenue or deferred revenue that we report in a particular period. The difference would be recorded as a cumulative catch-up adjustment and could result in the reversal of previously recognized revenue.

Recent Accounting Pronouncements

See Note 2 of our unaudited financial statements included in this Report as well as Note 2 of our audited financial statements included in the 2025 Form 10-K for more information.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are a smaller reporting company as defined in Rule 12b-2 under the Exchange Act. As a result, pursuant to Item 305(e) of Regulation S-K, we are not required to provide the information required by this Item.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

In designing and evaluating our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired controls. As required by Rule 13a-15(b) under the Exchange Act, our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures as of June 30, 2026.

Based upon that evaluation, our principal executive officer and principal financial officer concluded that, as of the end of the period covered by this Report, our disclosure controls and procedures were effective.

Changes in Internal Control Over Financial Reporting

There was no change in our internal control over financial reporting that occurred during the three months ended June 30, 2026 covered by this Report that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II – OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we have been, and may become, involved in litigation or other legal proceedings. See Note [14] of our unaudited financial statements included in this Report for more information. Regardless of outcome, litigation, including indemnity claims, can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors.

Item 1A. Risk Factors

Our business, prospects, reputation, results of operations, and financial condition, as well as the price of our common stock and warrants, can be affected by a number of factors, whether currently known or unknown, including those described in “Part I, Item 1A. Risk Factors” of the 2025 Form 10-K, may be further updated or amended in future filings we make with the SEC. When any one or more of these risks materialize from time to time, our business, reputation, results of operations, and financial condition, as well as the price of our common stock and warrants, can be materially and adversely affected. There have been no material changes to our risk factors since the 2025 Form 10-K.

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Item 6. Exhibits

Incorporated by Reference

Exhibit

Number

Description

Schedule Form

File Number

Exhibit/Annex

Filing Date

3.1

Second Amended and Restated Certificate of Incorporation

8-K

001-40284

3.1

December 13, 2021

3.2

Amended and Restated Bylaws

8-K

001-40284

3.1

November 21, 2022

31.1*

Certification Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934

31.2*

Certification Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934

32.1**

Section 1350 Certification

32.2**

Section 1350 Certification

101.INS*

XBRL Instance Document – the instance document does not appear in the Interactive Data file because its Inline XBRL tags are embedded within the Inline XBRL document.

101.SCH*

Inline XBRL Taxonomy Extension Schema Document

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase

101.DEF*

Inline XBRL Taxonomy Extension Definition Document

101.LAB*

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase

104*

Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* Filed herewith.

** Furnished herewith.

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SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 5, 2026

Solid Power, Inc.

By:

/s/ John Van Scoter

Name:

John Van Scoter

Title:

President, Chief Executive Officer, and Director

(Principal Executive Officer)

By:

/s/ Linda Heller

Name:

Linda Heller

Title:

Chief Financial Officer, Treasurer, and Secretary

(Principal Financial and Accounting Officer)

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