Ambiq Micro, Inc.

AMBQ NYSE Semiconductors & Related Devices Financials FY2024–FY2025

Ambiq Micro, Inc. had $72.5M of revenue in fiscal 2025, down 4.7% on the year before.

Last close · Oct 23, 2026

$50.36

1.6%

Earnings calendar · Ambiq Micro, Inc.

Every quarter, companies publish how much they sold and earned. These are the days Ambiq Micro, Inc. did it, and the next one. Share prices often move a lot on those days.

Next results

November 10, 2026

Tuesday · in 15 days

Time: Before the market opens
Covers: Period ended Sep 30, 2026
Expected EPS: −$0.32
Source: Earnings calendar

See who else reports that week →

Date	Results for	Time	Source
Aug 11, 2026	Q2 '26	Before the market opens	8-K ↗
May 12, 2026	Q1 '26	Before the market opens	8-K ↗
Jan 21, 2026	Q4 '25	Before the market opens	8-K ↗
Nov 6, 2025	Q3 '25	After the market closes	8-K ↗
Sep 4, 2025	Q2 '25	After the market closes	8-K ↗

From SEC filings: the results press release (8-K) or, without one, the quarterly or annual report.

KIRA’s summary AI analyst

Hi! I read Ambiq Micro, Inc.’s latest annual report (fiscal 2025). Here is what stands out:

3 to watch

1.Sales and profit

See section →

Ambiq Micro, Inc. had $72.5M of revenue in fiscal 2025, down 4.7% on the year before.
Its operating margin was −54.5%, down 1.1 pts: of every 100 in sales, about −55 is left after running the business.
Ambiq Micro, Inc. lost $36.5M in fiscal 2025.

2.Cash and shareholders

See section →

In the last 12 months, insiders sold $38.9M of shares on the open market and bought none.

3.Financial health

See section →

Ambiq Micro, Inc. passes 4 of 8 financial health tests (Piotroski F-score).

Ambiq Micro, Inc. in 30 seconds

Good So-so Weak

Are sales growing?

−4.7%

No. Sales fell 4.7% last year.

Does it make a profit?

−50.3%

No. It lost money last year.

How healthy are the accounts?

4 / 8

Mixed. It passes 4 of 8 health tests.

How is the share priced?

1.6x

One share costs 1.6 times its yearly profit per share.

Rules of thumb on reported numbers. A starting point, not a recommendation.

Key numbers, fiscal 2025

Market cap

$1.1B

Oct 23 close

P/E

1.6x

On $32.46 EPS (TTM)

Charts by

Sales and profit

Is it selling more, and how much does it keep?

Revenue and margins

KIRA · Ambiq Micro, Inc. had $72.5M of revenue in fiscal 2025, down 4.7% on the year before. Its operating margin was −54.5%, down 1.1 pts: of every 100 in sales, about −55 is left after running the business.

In plain words: Revenue is all the money customers paid. The margins show how many cents of each dollar of sales are left over at each step: after making the product (gross), after running the business (operating) and after everything, tax included (net).

Revenue

FY24

Revenue $76.1M

FY25

Revenue $72.5M

Revenue

Q2 '24

Revenue $20.3M

Q3 '24

Revenue $20.3M

Q4 '24

Revenue $20.3M

Q1 '25

Revenue $15.7M

Q2 '25

Revenue $17.9M

Q3 '25

Revenue $18.2M

Q4 '25

Revenue $20.7M

Q1 '26

Revenue $25.1M

Q2 '26

Revenue $33.9M

Q2 '24 Q3 '24 Q4 '24 Q1 '25 Q2 '25 Q3 '25 Q4 '25 Q1 '26 Q2 '26

Margins, % of revenue

FY24

Gross 31.9%

Operating −53.4%

Net −52.1%

FCF —

FY25

Gross 44.3%

Operating −54.5%

Net −50.3%

FCF —

Gross Operating Net FCF

Margins, % of revenue

Q2 '24

Gross 31.7%

Operating −54.1%

Net −52.5%

FCF —

Q3 '24

Gross 32.6%

Operating −49.8%

Net −46.6%

FCF —

Q4 '24

Gross 24.8%

Operating −51.0%

Net −50.1%

FCF —

Q1 '25

Gross 53.3%

Operating −55.6%

Net −52.7%

FCF —

Q2 '25

Gross 40.1%

Operating −49.2%

Net −47.5%

FCF —

Q3 '25

Gross 42.3%

Operating −55.3%

Net −49.6%

FCF —

Q4 '25

Gross 42.7%

Operating −57.7%

Net −51.5%

FCF —

Q1 '26

Gross 43.5%

Operating −46.6%

Net −40.6%

FCF —

Q2 '26

Gross 45.0%

Operating −25.7%

Net −21.0%

FCF —

Q2 '24 Q3 '24 Q4 '24 Q1 '25 Q2 '25 Q3 '25 Q4 '25 Q1 '26 Q2 '26

Gross Operating Net FCF

Net income and earnings per share

KIRA · Ambiq Micro, Inc. lost $36.5M in fiscal 2025.

Loss periods are shown in red.

In plain words: Net income is the profit left after every cost and tax. Earnings per share (EPS) splits that profit across every share, so it shows what one share earned.

Net income

FY24

Net income −$39.7M

FY25

Net income −$36.5M

Net income

Q2 '24

Net income −$10.6M

Q3 '24

Net income −$9.4M

Q4 '24

Net income −$10.2M

Q1 '25

Net income −$8.3M

Q2 '25

Net income −$8.5M

Q3 '25

Net income −$9.0M

Q4 '25

Net income −$10.7M

Q1 '26

Net income −$10.2M

Q2 '26

Net income −$7.1M

Q2 '24 Q3 '24 Q4 '24 Q1 '25 Q2 '25 Q3 '25 Q4 '25 Q1 '26 Q2 '26

Diluted EPS

FY24

Diluted EPS −$113.50

FY25

Diluted EPS −$4.57

Diluted EPS

Q2 '24

Diluted EPS −$34.59

Q3 '24

Diluted EPS −$26.03

Q4 '24

Diluted EPS —

Q1 '25

Diluted EPS −$18.96

Q2 '25

Diluted EPS −$18.89

Q3 '25

Diluted EPS −$0.72

Q4 '25

Diluted EPS $34.00

Q1 '26

Diluted EPS −$0.50

Q2 '26

Diluted EPS −$0.32

Q2 '24 Q3 '24 Q4 '24 Q1 '25 Q2 '25 Q3 '25 Q4 '25 Q1 '26 Q2 '26

Cash and shareholders

How much cash comes in, and where does it go?

Cash flow

Cash from operations minus capital spending.

In plain words: Profit on paper is not the same as cash in the bank. Free cash flow is the cash left after paying to run and maintain the business: the money it can hand back to shareholders, save or invest.

Free cash flow

FY24

Free cash flow —

FY25

Free cash flow —

Cash from operations vs capital spending

FY24

Cash from operations −$21.4M

Capital spending —

FY25

Cash from operations −$19.7M

Capital spending —

Cash from operations Capital spending

Cash from operations vs capital spending

Q2 '24

Cash from operations —

Capital spending —

Q3 '24

Cash from operations −$16.6M

Capital spending —

Q4 '24

Cash from operations $0.3M

Capital spending —

Q1 '25

Cash from operations $1.4M

Capital spending —

Q2 '25

Cash from operations −$12.0M

Capital spending —

Q3 '25

Cash from operations −$5.0M

Capital spending —

Q4 '25

Cash from operations −$4.1M

Capital spending —

Q1 '26

Cash from operations −$11.2M

Capital spending —

Q2 '26

Cash from operations −$9.5M

Capital spending —

Q2 '24 Q3 '24 Q4 '24 Q1 '25 Q2 '25 Q3 '25 Q4 '25 Q1 '26 Q2 '26

Cash from operations Capital spending

Dividends, buybacks and share count

In plain words: Companies hand cash back in two ways: dividends (cash paid to shareholders) and buybacks (buying back their own shares, so each remaining share owns a bigger slice).

Dividends and buybacks

FY24

Dividends —

Buybacks —

FY25

Dividends —

Buybacks —

Dividends Buybacks

Diluted shares outstanding (annual)

FY24

Diluted shares 0.00B

FY25

Diluted shares 0.01B

Insider trades

KIRA · In the last 12 months, insiders sold $38.9M of shares on the open market and bought none.

Open-market purchases and sales by officers, directors and 10% owners, from Form 4 filings. “Plan” marks trades under a pre-arranged Rule 10b5-1 plan.

In plain words: Insiders are the people who run or own a big part of the company. Buying with their own money can signal confidence; selling often has personal reasons, like taxes or diversifying.

Bought, 12 months

$0.0M

0 insiders

Sold, 12 months

$38.9M

8 insiders

Of sales under plans

41%

$16.0M

Date	Insider	Trade	Shares	Price	Value	Filing
Oct 15, 2026	Scott McLean HansonChief Technology Officer, Director	Sold plan	7,000	$51.00	$0.4M	Form 4
Oct 15, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	5,000	$51.00	$0.3M	Form 4
Oct 14, 2026	Sean Chihhsiang ChenPresident and COO	Sold plan	15,000	$51.50	$0.8M	Form 4
Oct 5, 2026	Sean Chihhsiang ChenPresident and COO	Sold plan	8,205	$66.78	$0.5M	Form 4
Oct 2, 2026	Scott McLean HansonChief Technology Officer, Director	Sold	8,680	$69.60	$0.6M	Form 4
Oct 2, 2026	Fumihide EsakaChief Executive Officer, Director	Sold	16,560	$69.60	$1.2M	Form 4
Oct 2, 2026	Jeffrey G WinzelerChief Financial Officer	Sold	5,455	$69.60	$0.4M	Form 4
Oct 2, 2026	Sean Chihhsiang ChenPresident and COO	Sold plan	5,802	$69.60	$0.4M	Form 4
Sep 15, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	13,500	$60.28	$0.8M	Form 4
Sep 15, 2026	Scott McLean HansonChief Technology Officer, Director	Sold plan	7,000	$60.28	$0.4M	Form 4
Sep 14, 2026	Sean Chihhsiang ChenPresident and COO	Sold plan	15,000	$60.14	$0.9M	Form 4
Sep 11, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	50,000	$63.36	$3.2M	Form 4
Sep 11, 2026	Ker ZhangDirector	Sold	10,000	$63.44	$0.6M	Form 4
Sep 4, 2026	Ker ZhangDirector	Sold	185	$56.92	$0.0M	Form 4
Sep 4, 2026	Sean Chihhsiang ChenPresident and COO	Sold plan	15,000	$57.17	$0.9M	Form 4
Sep 2, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	11,027	$56.69	$0.6M	Form 4
Sep 1, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	48,973	$56.39	$2.8M	Form 4
Aug 31, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	48,500	$57.44	$2.8M	Form 4
Aug 27, 2026	Scott McLean HansonChief Technology Officer, Director	Sold	27,500	$59.80	$1.6M	Form 4
Aug 26, 2026	Scott McLean HansonChief Technology Officer, Director	Sold	27,500	$59.58	$1.6M	Form 4
Aug 14, 2026	Scott McLean HansonChief Technology Officer, Director	Sold plan	7,000	$64.38	$0.5M	Form 4
Aug 14, 2026	Fumihide EsakaChief Executive Officer, Director	Sold plan	13,500	$64.39	$0.9M	Form 4
May 27, 2026	Timothy ChenDirector	Sold	70,592	$79.79	$5.6M	Form 4
May 15, 2026	Sean Chihhsiang ChenPresident and COO	Sold	55,685	$70.88	$3.9M	Form 4
May 14, 2026	Scott McLean HansonChief Technology Officer, Director	Sold	10,200	$69.24	$0.7M	Form 4
May 14, 2026	Jeffrey G WinzelerChief Financial Officer	Sold	26,000	$69.90	$1.8M	Form 4
May 14, 2026	Fumihide EsakaChief Executive Officer, Director	Sold	60,000	$70.02	$4.2M	Form 4
Apr 2, 2026	Michele Kim ConnorsGeneral Counsel	Sold	811	$26.15	$0.0M	Form 4
Jan 26, 2026	Scott McLean HansonChief Technology Officer, Director	Sold	10,000	$31.00	$0.3M	Form 4
Jan 26, 2026	Joseph A TautgesDirector	Sold	7,800	$31.00	$0.2M	Form 4

Financial health

Can it carry its debts, and how well does it use its money?

Balance sheet

Cash, debt and the ratios that show how comfortably Ambiq Micro, Inc. can carry it.

In plain words: What the company owns and what it owes. More cash than debt is a cushion for bad times; a lot of debt leaves less room when business slows down.

Cash vs debt (incl. leases)

FY24

Cash $61.0M

Debt —

FY25

Cash $140M

Debt —

Cash Debt

Fiscal year end	FY24	FY25
Cash and short-term investments	$61.0M	$140M
Current ratio	7.6x	8.8x
Quick ratio	6.3x	7.9x
Total assets	$104M	$185M
Total liabilities	$18.5M	$22.2M
Shareholders' equity	−$292M	$162M
Net debt (− = net cash)	—	—

Returns on capital

After-tax operating income as a share of the money invested in the business: debt plus equity, minus cash.

In plain words: How much profit the business makes on the money put into it. A higher percentage means each dollar invested works harder.

Return on capital, equity and assets (annual)

FY24

Return on capital —

Return on equity —

Return on assets −38.0%

FY25

Return on capital —

Return on equity —

Return on assets −25.2%

Return on capital Return on equity Return on assets

Piotroski F-score

KIRA · Ambiq Micro, Inc. passes 4 of 8 financial health tests (Piotroski F-score).

Nine pass/fail tests of profitability, funding and efficiency. 8–9 is strong, 0–2 weak.

In plain words: Nine yes/no tests of financial health, one point each. A green tick is a pass: 7 to 9 points is solid, 0 to 3 is weak.

Test	FY24	FY25
Net income is positive	✕	✕
Cash from operations is positive	✕	✕
Return on assets rose	—	✓
Cash from operations exceeds net income	✓	✓
Debt fell relative to assets	—	—
Current ratio rose	—	✓
Share count didn't rise	—	✕
Gross margin rose	—	✓
Revenue rose relative to assets	—	✕
F-score	— / 3	4 / 8
Accruals ratio	−17.5%	−11.6%
Altman Z''	−24.34	5.22

All figures

Every number, year by year.

2 years of figures

Amounts in USD. Hover a ratio’s name for its definition.

In plain words: Every number we have, year by year. Download it as a spreadsheet if you want to dig deeper.

Download CSV

Fiscal year	FY24	FY25
Income statement
Revenue	$76.1M	$72.5M
Gross profit	$24.3M	$32.1M
Research and development	$37.2M	$38.5M
Operating income	−$40.6M	−$39.5M
Pretax income	−$39.6M	−$36.4M
Income tax	$0.0M	$0.0M
Net income	−$39.7M	−$36.5M
Net income to common	−$42.4M	−$36.5M
Diluted EPS	−$113.50	−$4.57
Diluted shares	0.00B	0.01B
Cash flow
Cash from operations	−$21.4M	−$19.7M
Depreciation and amortization	$6.2M	$7.2M
Stock-based compensation	$5.2M	$6.8M
Balance sheet
Cash and short-term investments	$61.0M	$140M
Current assets	$89.0M	$168M
Current liabilities	$11.8M	$19.2M
Inventory	$15.0M	$16.9M
Property and equipment, net	$2.6M	$4.1M
Intangible assets	$11.7M	$11.6M
Total assets	$104M	$185M
Total liabilities	$18.5M	$22.2M
Shareholders' equity	−$292M	$162M
Margins
Gross margin	31.9%	44.3%
Operating margin	−53.4%	−54.5%
EBITDA margin	−45.2%	−44.6%
Net margin	−52.1%	−50.3%
Returns
Return on capital employed	−43.9%	−23.9%
Return on assets	−38.0%	−25.2%
Return on tangible equity	—	−24.2%
Growth
Revenue growth	—	−4.7%
Share count change	—	2,036.4%
Financial health
Current ratio	7.6x	8.8x
Quick ratio	6.3x	7.9x
Capital allocation
Stock comp / revenue	6.8%	9.4%
Quality scores
Piotroski F-score	—	4.0
Altman Z''	−24.3	5.2
Accruals ratio	−17.5%	−11.6%

Source: SEC EDGAR XBRL filings (CIK 0001500412). Data updated October 24, 2026. Quarterly fourth quarters are the full year minus the first nine months. For information only — not investment advice. Check the original filings before relying on any figure.

Ambiq Micro, Inc.

What Ambiq Micro, Inc. does

Filing details

Earnings calendar · Ambiq Micro, Inc.

KIRA’s summary AI analyst

1.Sales and profit

2.Cash and shareholders

3.Financial health

Ambiq Micro, Inc. in 30 seconds

Key numbers, fiscal 2025

Revenue

Operating margin

Net income

Free cash flow

Return on capital

Sales and profit

Revenue and margins

Net income and earnings per share

Cash and shareholders

Cash flow

Dividends, buybacks and share count

Insider trades

Financial health

Balance sheet

Returns on capital

Piotroski F-score

All figures

2 years of figures