Solid Power (SLDP): CVI and Heights disclose 9.9% stake via warrants

Rhea-AI Filing Summary

CVI Investments, Inc. and Heights Capital Management, Inc. jointly report beneficial ownership of 25,218,311 shares of Solid Power, Inc. common stock through warrants. This position represents 9.9% of the company’s common stock as of June 30, 2026.

The warrants are subject to a 9.99% beneficial ownership limitation, preventing exercise to the extent it would cause a reporting person and its affiliates to exceed that threshold. The percentage is based on 227,217,240 shares outstanding as reported in Solid Power’s Form 10-Q. Heights Capital Management acts as investment manager to CVI and may share voting and dispositive power, while both parties disclaim beneficial ownership except for their pecuniary interest.

Key Figures

Beneficially owned shares: 25,218,311 shares Percent of class: 9.9% Shares outstanding: 227,217,240 shares +1 more

4 metrics

Beneficially owned shares 25,218,311 shares Shares underlying warrants reported as beneficially owned by the Reporting Persons

Percent of class 9.9% Reported percentage of Solid Power common stock beneficially owned

Shares outstanding 227,217,240 shares Solid Power common shares outstanding as of June 30, 2026

Beneficial ownership cap 9.99% Warrants not exercisable to exceed this beneficial ownership threshold

Key Terms

beneficial owner, Section 13(d), pecuniary interest, Limited Power of Attorney, +1 more

5 terms

beneficial owner regulatory

"may be deemed to be the beneficial owner of all Shares owned"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Section 13(d) regulatory

"would be aggregated with such Reporting Person for purposes of Section 13(d)"

pecuniary interest financial

"disclaims any beneficial ownership of any such Shares, except for their pecuniary interest"

Limited Power of Attorney regulatory

"serves as authorized agent of CVI Investments, Inc. pursuant to a Limited Power of Attorney"

warrants financial

"consists of Shares issuable upon the exercise of warrants to purchase Shares"

Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.

FAQ

What stake in Solid Power (SLDP) do CVI Investments and Heights Capital report?

CVI Investments and Heights Capital report beneficial ownership of 25,218,311 Solid Power shares, representing 9.9% of the outstanding common stock, based on 227,217,240 shares outstanding as of June 30, 2026.

How is the 9.9% ownership of Solid Power (SLDP) by CVI and Heights structured?

The reported 9.9% interest in Solid Power is entirely via warrants to purchase common shares. These warrants are only exercisable to the extent exercise would not cause the holders’ aggregate beneficial ownership to exceed 9.99%.

What beneficial ownership limitation applies to CVI and Heights in Solid Power (SLDP)?

The warrants held by CVI and Heights include a 9.99% beneficial ownership limitation. This cap prevents exercising warrants if doing so would push their aggregated beneficial ownership above 9.99% of Solid Power’s outstanding common stock.

What share count for Solid Power (SLDP) underlies the 9.9% ownership calculation?

The 9.9% ownership figure is calculated using 227,217,240 Solid Power common shares outstanding as of June 30, 2026, as disclosed in the company’s Quarterly Report on Form 10-Q filed on August 5, 2026.

What role does Heights Capital Management play in the Solid Power (SLDP) stake?

Heights Capital Management, Inc. is the investment manager to CVI Investments, Inc. and may exercise voting and dispositive power over the 25,218,311 shares reported, while both entities disclaim beneficial ownership beyond their pecuniary interest.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/14/2026 - 02:45 PM Accepted by SEC EDGAR 08/14/2026 - 02:44 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Solid Power, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

83422N105

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 83422N105

1

Names of Reporting Persons

CVI Investments, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 25,218,311.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 25,218,311.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

25,218,311.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.9 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: With respect to Row 6 and Row 8 above, Heights Capital Management, Inc. is the investment manager to CVI Investments, Inc. and as such may exercise voting and dispositive power over the shares reported as beneficially owned by CVI Investments, Inc. herein.

SCHEDULE 13G

CUSIP Number(s): 83422N105

1

Names of Reporting Persons

Heights Capital Management, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 25,218,311.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 25,218,311.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

25,218,311.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.9 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: With respect to Row 6 and Row 8 above, Heights Capital Management, Inc. is the investment manager to CVI Investments, Inc. and as such may exercise voting and dispositive power over the shares reported as beneficially owned by CVI Investments, Inc. herein.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Solid Power, Inc.
(b)	Address of issuer's principal executive offices: 486 S. Pierce Avenue, Suite E, Louisville, CO 80027
Item 2.
(a)	Name of person filing: This statement is filed by the entities listed below, who are collectively referred to herein as "Reporting Persons," with respect to the shares of common stock of Solid Power, Inc. (the "Company"), $0.0001 par value per share (the "Shares"). (i) CVI Investments, Inc. (ii) Heights Capital Management, Inc.
(b)	Address or principal business office or, if none, residence: The address of the principal business office of CVI Investments, Inc. is: P.O. Box 309GT Ugland House South Church Street George Town Grand Cayman KY1-1104 Cayman Islands The address of the principal business office of Heights Capital Management, Inc. is: 101 California Street, Suite 3250 San Francisco, California 94111
(c)	Citizenship: Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
(d)	Title of class of securities: Common Stock, $0.0001 par value per share
(e)	CUSIP No.: 83422N105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: The information required by this Item 4(a) is set forth in Row 9 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. The number of Shares reported as beneficially owned consists of Shares issuable upon the exercise of warrants to purchase Shares (collectively, the "Warrants"). The Warrants are not exercisable to the extent that the total number of Shares then beneficially owned by a Reporting Person and its affiliates and any other persons whose beneficial ownership of Shares would be aggregated with such Reporting Person for purposes of Section 13(d) of the Exchange Act, would exceed 9.99%. The Company's Quarterly Report on Form 10-Q, filed on August 5, 2026, indicates there were 227,217,240 Shares outstanding as of June 30, 2026.
(b)	Percent of class: 9.9 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by this Item 4(c)(i) is set forth in Row 5 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(ii) Shared power to vote or to direct the vote: The information required by this Item 4(c)(ii) is set forth in Row 6 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. Heights Capital Management, Inc., which serves as the investment manager to CVI Investments, Inc., may be deemed to be the beneficial owner of all Shares owned by CVI Investments, Inc. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.
	(iii) Sole power to dispose or to direct the disposition of: The information required by this Item 4(c)(iii) is set forth in Row 7 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: The information required by this Item 4(c)(iv) is set forth in Row 8 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. Heights Capital Management, Inc., which serves as the investment manager to CVI Investments, Inc., may be deemed to be the beneficial owner of all Shares owned by CVI Investments, Inc. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

CVI Investments, Inc.

Signature:	/s/ Sarah Travis
Name/Title:	Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc.
Date:	08/14/2026

Heights Capital Management, Inc.

Signature:	/s/ Sarah Travis
Name/Title:	Sarah Travis, Assistant General Counsel and Assistant Secretary
Date:	08/14/2026

Comments accompanying signature: Heights Capital Management, Inc. serves as authorized agent of CVI Investments, Inc. pursuant to a Limited Power of Attorney, a copy of which was previously filed.

Exhibit Information

EXHIBIT INDEX EXHIBIT DESCRIPTION 24 Limited Power of Attorney* 99 Joint Filing Agreement* * Previously filed