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Ambiq Micro (NYSE: AMBQ) Q4 2025 results and 2026 guidance

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Ambiq Micro, Inc. reported fourth quarter and full year 2025 results showing improving profitability metrics despite slightly lower annual revenue. Full year 2025 net sales were $72.5 million versus $76.1 million in 2024, but GAAP gross margin rose to 44.3% from 31.9%, lifting gross profit to $32.1 million, the highest in company history.

For Q4 2025, net sales reached $20.7 million, the highest quarter of the year, with GAAP gross margin of 42.7% and non-GAAP gross margin of 45.5%. Full year GAAP net loss attributable to common stockholders improved to $36.5 million, while non-GAAP net loss narrowed to $20.9 million.

Ambiq strengthened its balance sheet, ending 2025 with $140.3 million in cash and cash equivalents and converting preferred stock to common following an upsized IPO and follow-on offerings. For Q1 2026, the company guides net sales of $21.0–$22.0 million, non-GAAP gross margin of 44.0–45.0%, and non-GAAP net loss per share between ($0.39) and ($0.33) on 20.38 million weighted average shares.

Positive

  • None.

Negative

  • None.

Insights

Ambiq is trading some top-line softness for stronger margins, lower losses, and a much stronger balance sheet.

Ambiq Micro delivered full year 2025 net sales of $72.5 million, down 4.7%, but GAAP gross margin expanded from 31.9% to 44.3%, lifting gross profit to $32.1 million. Operating expenses grew about 10%, yet GAAP net loss improved to $36.5 million and non-GAAP net loss to $20.9 million, indicating better unit economics even as the company continues to invest.

The balance sheet shift is notable: cash and equivalents climbed to $140.3 million from $61.0 million, helped by an upsized IPO and follow-on offerings cited at $102.7 million and $76.8 million in net proceeds. Redeemable convertible preferred stock was eliminated, and stockholders’ equity moved to a positive $162.5 million, reducing financial risk and funding ongoing R&D and go-to-market spending.

Guidance for Q1 2026 calls for net sales of $21.0–$22.0 million with non-GAAP gross margin of 44.0–45.0% and non-GAAP operating expense of $18.0–$18.5 million, implying continued losses but relatively stable margins. Execution around edge AI demand, expense discipline, and delivery against this outlook, as referenced for the quarter ending March 31, 2026, will be key for tracking the trajectory.

false000150041200015004122026-03-052026-03-05

 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 05, 2026

 

 

Ambiq Micro, Inc.

(Exact name of Registrant as Specified in Its Charter)

 

 

Delaware

001-42766

27-1911389

(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

 

 

 

 

 

6500 River Place Blvd.

Building 7

 

Austin, Texas

 

78730

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s Telephone Number, Including Area Code: 512 879-2850

 

 

(Former Name or Former Address, if Changed Since Last Report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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, $0.000001 par value per share

 

AMBQ

 

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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.

 


Item 2.02 Results of Operations and Financial Condition.

On March 5, 2026, Ambiq Micro, Inc. (the "Company") issued a press release to report financial results for its fourth quarter and full year ended December 31, 2025. A copy of the press release is attached as Exhibit 99.1 and is incorporated by reference herein.

The information set forth in this Item 2.02, including Exhibit 99.1 hereto, shall be deemed "furnished" and not "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit Number

 

Description

99.1

 

Press Release of Ambiq Micro, Inc. dated March 5, 2026

104

 

Cover Page Interactive Data File (formatted as Inline XBRL)

 


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

Ambiq Micro, Inc.

 

 

 

 

Date:

March 5, 2026

By:

/s/ Jeffrey G. Winzeler

 

 

Name:

 

Title:

Jeffrey G. Winzeler

Chief Financial Officer
 

 


Ambiq Reports Fourth Quarter and Full Year 2025 Financial Results

Full Year 2025 net sales of $72.5 million, with sequential growth in net sales in every quarter of the year

Fourth quarter net sales of $20.7 million exceeded guidance and marked the highest quarterly net sales of 2025 driven by accelerated customer demand and strong operational execution

Fourth quarter GAAP gross margin of 42.7%; non-GAAP gross margin of 45.5%, reflecting successful scaling across higher-value customers and broader market diversification

Expect strong first quarter net sales of $21.0 million to $22.0 million, reflecting growing momentum in advanced edge AI adoption

 

AUSTIN, Texas, March 5, 2026 — Ambiq Micro, Inc. (“Ambiq”) (NYSE: AMBQ), a technology leader in ultra-low-power semiconductor solutions for edge AI, today announced financial results for the fourth quarter and full year 2025.

Full Year 2025 and Recent Highlights

 

Strong performance on accelerating demand for edge AI solutions: Fourth quarter net sales were ahead of guidance with sequential net sales growth in every quarter of 2025.
Continued AI-driven margin expansion: Delivered year-over-year margin expansion in the fourth quarter and full year 2025, driven by a shift toward higher-value revenue streams and greater geographic diversification. Full year 2025 gross profit was the highest in Company history.
Advanced ultra-low-power AI silicon innovation: Unveiled Atomiq®, the world’s first ultra-low-power NPU SoC built on Ambiq’s SPOT® architecture. Launched three new Apollo variants, expanding our portfolio and enabling edge AI capabilities across a broader range of devices and end-markets.
Expanded industrial edge AI presence: Announced partnership with RONDS to enable large-scale deployment of always-on, battery-powered AI sensors for heavy industrial applications.
Recognized as an award-winning edge AI platform: neuralSPOT® software development kit (SDK) was honored as EDN’s 2025 Product of the Year, highlighting Ambiq’s differentiated approach to accelerating ultra-low-power edge AI development and deployment across key end markets.
Received strong market interest in Ambiq’s strategy and growth opportunity: Ambiq completed an upsized initial public offering and a follow-on offering, generating $102.7 and $76.8 million in net proceeds, respectively.
Strengthened leadership and governance: Ambiq welcomed Dr. Bernard (Bernie) Banks to its Board of Directors and Michele Connors as its General Counsel.

 

Management Commentary

 

“Our fourth quarter results represented the highest quarterly net sales of 2025, and full year 2025 gross profit was the highest in Company history, reflecting robust end customer demand and continued adoption of our higher-value Apollo platforms. Throughout the year, we expanded and diversified our customer base, introduced products to enhance more complex edge AI capabilities and completed a successful IPO and follow-on offering in early 2026,” said Fumihide Esaka, CEO of Ambiq. “We are entering 2026 with meaningful momentum and expect a year of strong growth as our differentiated ultra-low power SPOT platform powers the next wave of edge AI adoption and helps make intelligent, always-on devices a reality across markets.”

 


Summary of Fourth Quarter 2025 Results

 

GAAP
($ in thousands)

 

Three months ended December 31,

 

 

Three months ended September 30,

 

 

Three months ended December 31,

 

 

Quarter over quarter change

 

 

Year over year change

 

 

 

2025

 

 

2025

 

 

2024

 

 

 

 

 

 

 

Net sales

 

$

20,744

 

 

$

18,165

 

 

$

20,339

 

 

 

14.2

%

 

 

2.0

%

Gross profit

 

$

8,859

 

 

$

7,677

 

 

$

5,048

 

 

 

15.4

%

 

 

75.5

%

Gross margin

 

 

42.7

%

 

 

42.3

%

 

 

24.8

%

 

0.5 pts

 

 

17.9 pts

 

Operating expense

 

$

20,821

 

 

$

17,720

 

 

$

15,419

 

 

 

17.5

%

 

 

35.0

%

Net loss attributable to common stockholders

 

$

(10,679

)

 

$

(9,002

)

 

$

(10,191

)

 

$

(1,677

)

 

$

(488

)

Net loss per share attributable to common stockholders

 

$

(0.58

)

 

$

(0.72

)

 

$

(26.41

)

 

$

0.14

 

 

$

25.82

 

 

NON-GAAP FINANCIAL MEASURES*
($ in thousands)

 

Three months ended December 31,

 

 

Three months ended September 30,

 

 

Three months ended December 31,

 

 

Quarter over quarter change

 

 

Year over year change

 

 

 

2025

 

 

2025

 

 

2024

 

 

 

 

 

 

 

Non-GAAP Gross profit

 

$

9,436

 

 

$

8,141

 

 

$

5,376

 

 

 

15.9

%

 

 

75.5

%

Non-GAAP Gross margin

 

 

45.5

%

 

 

44.8

%

 

 

26.4

%

 

0.7 pts

 

 

19.1 pts

 

Non-GAAP Operating expense

 

$

16,599

 

 

$

13,162

 

 

$

13,092

 

 

 

26.1

%

 

 

26.8

%

Non-GAAP Net loss attributable to common stockholders

 

$

(5,861

)

 

$

(3,977

)

 

$

(7,533

)

 

$

(1,884

)

 

$

1,672

 

Non-GAAP Net loss per share attributable to common stockholders

 

$

(0.32

)

 

$

(0.32

)

 

$

(19.52

)

 

$

(0.00

)

 

$

19.20

 

 

 

Summary of Full Year 2025 Results

 

GAAP
($ in thousands)

 

Year Ended
December 31,

 

 

Year Ended
December 31,

 

 

Year over year change

 

 

 

2025

 

 

2024

 

 

 

 

Net sales

 

$

72,514

 

 

$

76,067

 

 

 

(4.7

%)

Gross profit

 

$

32,095

 

 

$

24,291

 

 

 

32.1

%

Gross margin

 

 

44.3

%

 

 

31.9

%

 

12.3 pts

 

Operating expense

 

$

71,638

 

 

$

64,904

 

 

 

10.4

%

Net loss attributable to common stockholders

 

$

(36,461

)

 

$

(42,385

)

 

 

14.0

%

Net loss per share attributable to common stockholders

 

$

(4.57

)

 

$

(113.50

)

 

 

96.0

%

 

NON-GAAP FINANCIAL MEASURES*
($ in thousands)

 

Year Ended
December 31,

 

 

Year Ended
December 31,

 

 

Year over year change

 

 

 

2025

 

 

2024

 

 

 

 

Non-GAAP Gross profit

 

$

32,628

 

 

$

23,942

 

 

 

36.3

%

Non-GAAP Gross margin

 

 

45.0

%

 

 

31.5

%

 

13.5 pts

 

Non-GAAP Operating expense

 

$

56,728

 

 

$

53,478

 

 

 

6.1

%

Non-GAAP Net loss attributable to common stockholders

 

$

(20,918

)

 

$

(31,331

)

 

 

33.2

%

Non-GAAP Net loss per share attributable to common stockholders

 

$

(2.62

)

 

$

(83.90

)

 

 

96.9

%

 

*Non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating expense and non-GAAP net loss attributable to common stockholders are non-GAAP financial measures. See "Non-GAAP Financial Measures" below for definitions of each of these measures, and the tables accompanying this press release for reconciliations of these measures to their most comparable GAAP measure.

 


First Quarter Business Outlook1

Ambiq’s current expectations for the quarter ending March 31, 2026, include the following:

Net sales within a range of $21.0 million to $22.0 million
Non-GAAP gross margin between 44.0% and 45.0%
Non-GAAP operating expense of 18.0 million to $18.5 million
Non-GAAP net loss per share within a range of ($0.39) to ($0.33) based on a weighted average share count of 20.38 million shares outstanding

 

1Ambiq's financial outlook is based on assumptions that it believes to be reasonable as of the date of this release, but may be materially affected by many factors, as discussed below in "Forward-Looking Statements." Actual results may vary from the guidance and the variations may be material. We undertake no intent or obligation to publicly update or revise this outlook, whether as a result of new information, future events or otherwise, except as required by law. The Company is unable to include a reconciliation of forward-looking non-GAAP net loss per share, non-GAAP gross margin and non-GAAP operating expense to the most directly comparable GAAP measure without unreasonable effort due to the high variability with respect to the impact of items such as depreciation and amortization and, stock-based compensation expense and other items that are excluded from these non-GAAP measures.

 

Conference Call

Ambiq will host a conference call for analysts and investors today at 8:30 a.m. Eastern Time. Interested participants can access the call by dialing 1-800-715-9871 and providing conference ID 3633496. International callers may join the call by dialing +1-646-307-1963, using the same code. The call will also be available as a live and archived webcast on the Events & Presentations section of Ambiq's Investor Relations website.

A telephone replay of the conference call will be available approximately two hours after the call through Thursday, March 12, 2026, at 11:59 PM EST. The replay can be accessed by dialing +1-800-770-2030 and using the playback ID 3633496. International callers should dial +1-609-800-9909 and enter the same ID at the prompt.

About Ambiq Micro

Headquartered in Austin, Texas, Ambiq's mission is to enable intelligence (artificial intelligence (AI) and beyond) everywhere by delivering the lowest power semiconductor solutions. Ambiq enables its customers to deliver AI compute at the edge where power consumption challenges are the most severe. Ambiq's technology innovations, built on the patented and proprietary subthreshold power optimized technology (SPOT®), fundamentally deliver a multi-fold improvement in power consumption over traditional semiconductor designs. Ambiq has powered over 290 million devices to date. For more information, visit www.ambiq.com.

Non-GAAP Financial Measures

Ambiq supplements its reporting of financial information determined under generally accepted accounting principles in the United States of America (GAAP), including the use of non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating expenses, non-GAAP R&D expenses, non-GAAP SG&A expenses and non-GAAP net loss attributable to common stockholders. These non-GAAP financial measures help management make strategic decisions, establish budgets and operational goals for managing the business, analyzing financial results, and evaluating business performance. Ambiq defines non-GAAP gross profit as gross profit adjusted to exclude expenses not directly attributable to gross profit, such as depreciation and amortization, stock-based compensation and gain on nonmonetary transaction. Ambiq defines non-GAAP gross margin as non-GAAP gross profit as a percentage of net sales. Ambiq defines non-GAAP operating expenses, non-GAAP R&D expenses and non-GAAP SG&A expenses as operating expenses, R&D expenses and SG&A expenses, as applicable, adjusted to exclude expenses not directly attributable to operating expenses, R&D expenses and SG&A expenses, as applicable, such as depreciation and amortization, stock-based compensation, severance costs, IPO-related bonus and IPO and other transaction costs, as applicable. Ambiq defines non-GAAP net loss attributable to common stockholders as net loss attributable to common stockholders adjusted to exclude expenses not directly attributable to the performance of operations, such as income taxes, depreciation and amortization, stock-based


compensation, gain on nonmonetary transaction, severance costs, IPO-related bonus, IPO and other transaction costs and warrant valuation.

Ambiq believes these non-GAAP financial measures provide additional tools for investors to use in comparing core business and results of operations over multiple periods with other companies in the industry, many of which present similar non-GAAP financial measures. However, Ambiq's presentation of non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating expenses, non-GAAP R&D expenses, non-GAAP SG&A expenses, and non-GAAP net loss attributable to common stockholder may not be comparable to similarly titled measures reported by other companies due to differences in the way that these measures are calculated. These non-GAAP measures have limitations, and should not be considered as the sole measures of our performance and should not be considered in isolation from, or as a substitute for, the most comparable measure calculated in accordance with GAAP.

Forward-Looking Statements

The statements contained in this press release that are not historical facts are forward-looking statements. You can identify forward-looking statements because they contain words such as "believes," "expects," "may," "will," "should," "seeks," "intends," "plans," "estimates," or "anticipates," or similar expressions which concern our strategy, plans, projections or intentions. These forward-looking statements may be included throughout this press release, and include, but are not limited to, statements relating to Ambiq's expectations around its strategic initiatives, growth trajectory and expected first quarter and full year business outlook. By their nature, forward-looking statements are not statements of historical fact or guarantees of future performance and are subject to risks, uncertainties, assumptions or changes in circumstances that are difficult to predict or quantify including those described in the section titled "Risk Factors" in Ambiq's Quarterly Report on 10-Q for the quarter ended September 30, 2025, as well as in other filings Ambiq may make with the SEC in the future. Ambiq's expectations, beliefs and projections are expressed in good faith and Ambiq believes there is a reasonable basis for them. However, there can be no assurance that management's expectations, beliefs and projections will result or be achieved and actual results may vary materially from what is expressed in or indicated by the forward-looking statements. Any forward-looking statement in this press release speaks only as of the date of this release. Ambiq undertakes no obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by any applicable securities laws.

 

 

 

 

 

 

 

 


AMBIQ MICRO, INC.

CONSOLIDATED BALANCE SHEETS

(Unaudited and in thousands, except share and per share amounts)

 

 

December 31,

 

 

December 31,

 

 

 

2025

 

 

2024

 

Assets

 

 

 

 

 

 

Current assets:

 

 

 

 

 

 

Cash and cash equivalents

 

$

140,275

 

 

$

60,981

 

Accounts receivable, net

 

 

7,286

 

 

 

10,401

 

Inventories, net

 

 

16,937

 

 

 

15,008

 

Prepaid expenses and other current assets

 

 

3,421

 

 

 

2,566

 

Total current assets

 

$

167,919

 

 

$

88,956

 

Property, equipment and software, net of accumulated depreciation and
   amortization of $14,632 and $13,158, respectively

 

 

4,137

 

 

 

2,616

 

Right-of-use assets, net

 

 

638

 

 

 

928

 

Intangible assets, net of accumulated amortization of $10,752 and $5,082,
   respectively

 

 

11,593

 

 

 

11,729

 

Other assets

 

 

393

 

 

 

49

 

Total assets

 

$

184,680

 

 

$

104,278

 

Liabilities, Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)

 

 

 

 

 

 

Current liabilities:

 

 

 

 

 

 

Accounts payable

 

$

8,577

 

 

$

2,933

 

Accrued and other current liabilities

 

 

10,201

 

 

 

8,202

 

Short-term lease liabilities

 

 

400

 

 

 

633

 

Total current liabilities

 

$

19,178

 

 

$

11,768

 

Long-term lease liabilities

 

 

278

 

 

 

333

 

Warrant liabilities

 

 

 

 

 

112

 

Other long-term liabilities

 

 

2,765

 

 

 

6,317

 

Total liabilities

 

$

22,221

 

 

$

18,530

 

Commitments and contingencies (Note 9)

 

 

 

 

 

 

Redeemable convertible preferred stock, $0.000001 par value; 10,000,000 shares authorized; 0 and 341,496,158 shares issued and outstanding at December 31, 2025 and December 31, 2024

 

$

 

 

$

378,150

 

Stockholders’ equity (deficit):

 

 

 

 

 

 

Common stock, $0.000001 par value; 500,000,000 shares authorized; 18,316,928 shares and 434,720 shares issued and outstanding at December 31, 2025 and December 31, 2024, respectively

 

 

 

 

 

 

Additional paid-in-capital

 

 

519,610

 

 

 

28,368

 

Accumulated deficit

 

 

(356,711

)

 

 

(320,250

)

Accumulated other comprehensive loss

 

 

(440

)

 

 

(520

)

Total stockholders’ equity (deficit)

 

 

162,459

 

 

 

(292,402

)

Total liabilities, redeemable convertible preferred stock and stockholders’ equity (deficit)

 

$

184,680

 

 

$

104,278

 

 

 

 


AMBIQ MICRO, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(Unaudited and in thousands, except share and per share amounts)

 

 

2025

 

 

2024

 

Net sales

 

$

72,514

 

 

$

76,067

 

Cost of sales

 

 

40,419

 

 

 

51,776

 

Gross profit

 

 

32,095

 

 

 

24,291

 

Operating expenses:

 

 

 

 

 

 

Research and development

 

 

38,486

 

 

 

37,168

 

Selling, general, and administrative

 

 

33,152

 

 

 

27,736

 

Total operating expenses

 

 

71,638

 

 

 

64,904

 

Loss from operations

 

 

(39,543

)

 

 

(40,613

)

Other income, net

 

 

3,122

 

 

 

980

 

Loss before income taxes

 

 

(36,421

)

 

 

(39,633

)

Provision for income taxes

 

 

40

 

 

 

28

 

Net loss

 

$

(36,461

)

 

$

(39,661

)

Deemed dividends

 

 

 

 

 

(2,724

)

Net loss attributable to common stockholders

 

$

(36,461

)

 

$

(42,385

)

Net loss per share attributable to common stockholders, basic and diluted

 

$

(4.57

)

 

$

(113.50

)

Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted

 

 

7,977,360

 

 

 

373,446

 

Comprehensive loss:

 

 

 

 

 

 

Currency translation adjustment

 

 

80

 

 

 

319

 

Comprehensive loss

 

$

(36,381

)

 

$

(39,342

)

Deemed dividends

 

 

 

 

 

(2,724

)

Comprehensive loss attributable to common stockholders

 

$

(36,381

)

 

$

(42,066

)

 

 


AMBIQ MICRO, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited and in thousands)

 

 

2025

 

 

2024

 

Cash flows from operating activities

 

 

 

 

 

 

Net loss

 

$

(36,461

)

 

$

(39,661

)

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

 

 

 

 

 

 

Depreciation and amortization

 

 

7,215

 

 

 

6,246

 

Stock-based compensation

 

 

6,835

 

 

 

5,174

 

Gain on receipt of nonmonetary tangible assets

 

 

(1,600

)

 

 

(1,600

)

Change in right-of-use assets

 

 

698

 

 

 

987

 

Non-cash issuance of warrants

 

 

 

 

 

1,940

 

Change in warrant valuations and cancellations

 

 

60

 

 

 

(51

)

Inventory valuation adjustment

 

 

199

 

 

 

428

 

Other

 

 

(110

)

 

 

 

Changes in operating assets and liabilities

 

 

 

 

 

 

Accounts receivable

 

 

3,226

 

 

 

1,754

 

Inventories

 

 

(2,128

)

 

 

6,041

 

Prepaid expenses and other assets

 

 

(1,188

)

 

 

521

 

Accounts payable and accrued liabilities

 

 

4,197

 

 

 

(2,744

)

Current and long-term liabilities

 

 

(633

)

 

 

(463

)

Net cash used in operating activities

 

 

(19,690

)

 

 

(21,428

)

Cash flows from investing activities

 

 

 

 

 

 

Purchase of intangible assets

 

 

(6,099

)

 

 

(3,073

)

Purchases of property, equipment and software

 

 

(1,344

)

 

 

(658

)

Net cash used in investing activities

 

 

(7,443

)

 

 

(3,731

)

Cash flows from financing activities

 

 

 

 

 

 

Proceeds from issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions

 

 

102,672

 

 

 

 

Payment of deferred offering costs

 

 

(2,829

)

 

 

 

Proceeds from issuance of preferred stock, net of issuance costs

 

 

 

 

 

57,989

 

Proceeds from exercise of stock options

 

 

839

 

 

 

854

 

Proceeds from exercise of warrants

 

 

5,702

 

 

 

 

Net cash provided by financing activities

 

 

106,384

 

 

 

58,843

 

Effect of exchange rate changes on cash and cash equivalents

 

 

43

 

 

 

(24

)

Net increase in cash and cash equivalents

 

 

79,294

 

 

 

33,660

 

Cash and cash equivalents at beginning of period

 

 

60,981

 

 

 

27,321

 

Cash and cash equivalents at end of period

 

$

140,275

 

 

$

60,981

 

Supplemental disclosure of non-cash investing and financing activities

 

 

 

 

 

 

Intangible assets in accounts payable, accrued and other long-term liabilities

 

 

9,764

 

 

 

10,328

 

Gain on receipt of nonmonetary tangible asset

 

 

1,600

 

 

 

1,600

 

Right-of-use assets obtained in exchange for new operating lease liabilities

 

 

 

 

 

1,207

 

Non-cash deferred offering costs

 

 

(300

)

 

 

 

Deemed dividends

 

 

 

 

2,724

 

 

 

 

 


The following table reconcile the most directly comparable GAAP financial measure to each of these non-GAAP financial measures.

 

 

Non-GAAP Net Loss:

 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

Three months ended September 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

2025

 

 

 

(in thousands)

 

Net loss attributable to common stockholders

 

$

(10,679

)

 

$

(10,191

)

 

$

(36,461

)

 

$

(42,385

)

 

$

(9,002

)

Add:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Income taxes

 

 

19

 

 

 

3

 

 

 

40

 

 

 

28

 

 

 

3

 

Depreciation and amortization

 

 

1,648

 

 

 

1,695

 

 

 

7,215

 

 

 

6,246

 

 

 

1,754

 

Stock-based compensation

 

 

3,151

 

 

 

863

 

 

 

6,835

 

 

 

5,174

 

 

 

2,068

 

Gain on nonmonetary transaction

 

 

 

 

 

 

 

 

(1,600

)

 

 

(1,600

)

 

 

 

Severance costs

 

 

 

 

 

 

 

 

 

 

 

706

 

 

 

 

IPO-related bonus

 

 

 

 

 

 

 

 

1,200

 

 

 

 

 

 

1,200

 

IPO and other transaction costs

 

 

 

 

 

97

 

 

 

1,793

 

 

 

551

 

 

 

 

Warrant valuation

 

 

 

 

 

 

 

 

60

 

 

 

(51

)

 

 

 

Non-GAAP net loss attributable to common stockholders

 

$

(5,861

)

 

$

(7,533

)

 

$

(20,918

)

 

$

(31,331

)

 

$

(3,977

)

 

Non-GAAP Gross Profit and Non-GAAP Gross Margin:

 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

Three months ended September 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

2025

 

 

 

(in thousands)

 

Gross profit

 

$

8,859

 

 

$

5,048

 

 

$

32,095

 

 

$

24,291

 

 

$

7,677

 

Add:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depreciation and amortization

 

 

475

 

 

 

252

 

 

 

1,906

 

 

 

895

 

 

 

439

 

Stock-based compensation

 

 

102

 

 

 

76

 

 

 

227

 

 

 

356

 

 

 

25

 

Gain on nonmonetary transaction

 

 

 

 

 

 

 

 

(1,600

)

 

 

(1,600

)

 

 

 

Non-GAAP gross profit

 

$

9,436

 

 

$

5,376

 

 

$

32,628

 

 

$

23,942

 

 

$

8,141

 

 

Non-GAAP Operating Expenses:

 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

Three months ended September 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

2025

 

 

 

(in thousands)

 

Operating expenses

 

$

20,821

 

 

$

15,419

 

 

$

71,638

 

 

$

64,904

 

 

$

17,720

 

Less:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depreciation and amortization

 

 

1,173

 

 

 

1,443

 

 

 

5,309

 

 

 

5,351

 

 

 

1,315

 

Stock-based compensation

 

 

3,049

 

 

 

787

 

 

 

6,608

 

 

 

4,818

 

 

 

2,043

 

Severance

 

 

 

 

 

 

 

 

 

 

 

706

 

 

 

 

IPO-related bonus

 

 

 

 

 

 

 

 

1,200

 

 

 

 

 

 

1,200

 

IPO and other transaction costs

 

 

 

 

 

97

 

 

 

1,793

 

 

 

551

 

 

 

 

Non-GAAP operating expenses

 

$

16,599

 

 

$

13,092

 

 

$

56,728

 

 

$

53,478

 

 

$

13,162

 

 


 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

Three months ended September 30,

 

Research and development

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

2025

 

 

 

(in thousands)

 

Operating expenses

 

$

12,012

 

 

$

8,773

 

 

$

38,486

 

 

$

37,168

 

 

$

8,889

 

Less:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depreciation and amortization

 

 

1,136

 

 

 

1,410

 

 

 

5,061

 

 

 

5,116

 

 

 

1,279

 

Stock-based compensation

 

 

1,609

 

 

 

396

 

 

 

2,589

 

 

 

2,416

 

 

 

263

 

Severance

 

 

 

 

 

 

 

 

 

 

 

439

 

 

 

 

IPO-related bonus

 

 

 

 

 

 

 

 

433

 

 

 

 

 

 

433

 

Non-GAAP operating expenses

 

$

9,268

 

 

$

6,967

 

 

$

30,403

 

 

$

29,196

 

 

$

6,915

 

 

 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

Three months ended September 30,

 

Selling, general, and administrative

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

2025

 

 

 

(in thousands)

 

Operating expenses

 

$

8,809

 

 

$

6,646

 

 

$

33,152

 

 

$

27,736

 

 

$

8,831

 

Less:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Depreciation and amortization

 

 

37

 

 

 

33

 

 

 

248

 

 

 

235

 

 

 

36

 

Stock-based compensation

 

 

1,440

 

 

 

392

 

 

 

4,019

 

 

 

2,402

 

 

 

1,781

 

Severance

 

 

 

 

 

 

 

 

 

 

 

267

 

 

 

 

IPO-related bonus

 

 

 

 

 

 

 

 

767

 

 

 

 

 

 

767

 

IPO and other transaction costs

 

 

 

 

 

97

 

 

 

1,793

 

 

 

551

 

 

 

 

Non-GAAP operating expenses

 

$

7,331

 

 

$

6,124

 

 

$

26,324

 

 

$

24,282

 

 

$

6,247

 

 

Non-GAAP Net Loss Attributable to Common Stockholders:

 

 

Three months ended December 31,

 

 

Year Ended
December 31,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

 

 

(In thousands, except share and per share amounts)

 

GAAP net loss attributable to common stockholders

 

$

(10,679

)

 

$

(10,191

)

 

$

(36,461

)

 

$

(42,385

)

Weighted-average shares used in computing GAAP net loss per share

 

 

18,309,394

 

 

 

385,938

 

 

 

7,977,360

 

 

 

373,446

 

GAAP net loss per share attributable to common stockholders

 

$

(0.58

)

 

$

(26.41

)

 

$

(4.57

)

 

$

(113.50

)

 

 

 

 

 

 

 

 

 

 

 

 

Non-GAAP net loss attributable to common stockholders

 

$

(5,861

)

 

$

(7,533

)

 

$

(20,918

)

 

$

(31,331

)

Weighted-average shares used in computing non-GAAP net loss per share

 

 

18,309,394

 

 

 

385,938

 

 

 

7,977,360

 

 

 

373,446

 

Non-GAAP net loss per share attributable to common stockholders

 

$

(0.32

)

 

$

(19.52

)

 

$

(2.62

)

 

$

(83.90

)

 

 


FAQ

How did Ambiq Micro (AMBQ) perform financially in full year 2025?

Ambiq Micro’s 2025 net sales were $72.5 million, down 4.7% from 2024, but gross margin improved to 44.3% from 31.9%. Gross profit rose to $32.1 million and GAAP net loss attributable to common stockholders narrowed to $36.5 million, with non-GAAP net loss at $20.9 million.

What were Ambiq Micro’s key fourth quarter 2025 results?

In Q4 2025, Ambiq Micro reported net sales of $20.7 million, its highest quarter of the year, with GAAP gross margin of 42.7% and non-GAAP gross margin of 45.5%. GAAP net loss attributable to common stockholders was $10.7 million, while non-GAAP net loss was $5.9 million.

What guidance did Ambiq Micro (AMBQ) provide for first quarter 2026?

For Q1 2026, Ambiq Micro expects net sales between $21.0 million and $22.0 million, non-GAAP gross margin of 44.0%–45.0%, and non-GAAP operating expense of $18.0–$18.5 million. It forecasts non-GAAP net loss per share of ($0.39) to ($0.33) based on 20.38 million weighted average shares.

How did Ambiq Micro’s balance sheet change during 2025?

Ambiq Micro ended 2025 with $140.3 million in cash and cash equivalents, up from $61.0 million a year earlier. Total assets reached $184.7 million, and stockholders’ equity improved to $162.5 million, reflecting IPO and follow-on equity proceeds and the elimination of redeemable convertible preferred stock.

How do Ambiq Micro’s non-GAAP results compare to GAAP in 2025?

For 2025, Ambiq Micro’s GAAP gross margin was 44.3%, while non-GAAP gross margin was 45.0%. GAAP net loss attributable to common stockholders was $36.5 million, versus non-GAAP net loss of $20.9 million, as the company excluded items like depreciation, amortization, stock-based compensation and transaction-related costs.

What operational highlights did Ambiq Micro report for 2025?

Ambiq highlighted sequential net sales growth each quarter of 2025, launch of its Atomiq ultra-low-power NPU SoC and three Apollo variants, expansion into industrial edge AI via a partnership with RONDS, and recognition of its neuralSPOT SDK as EDN’s 2025 Product of the Year, supporting its edge AI strategy.

How much cash did Ambiq Micro raise through equity offerings?

Ambiq Micro stated it completed an upsized initial public offering and a follow-on offering, generating net proceeds of $102.7 million and $76.8 million, respectively. These equity raises significantly increased cash, supported the transition from preferred to common equity, and strengthened the company’s capital position for ongoing growth initiatives.

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