Ambiq Micro CTO Scott McLean Hanson sells 7,000 shares

The sales and option exercise were reported under a Rule 10b5-1 plan adopted May 15, 2026.

Rhea-AI Filing Summary

Ambiq Micro, Inc. Chief Technology Officer and director Scott McLean Hanson exercised options to acquire 7,000 common shares at an exercise price of $8.12 per share on October 15, 2026, and sold 7,000 shares that day in four reported blocks. The weighted average sale prices were $49.0592 for 600 shares, $50.0827 for 900 shares, $51.1210 for 3,700 shares, and $51.8615 for 1,800 shares. His reported post-transaction stock-option position was 38,279. All transactions were under a Rule 10b5-1 plan adopted May 15, 2026.

Insider Trade Summary 10b5-1

Exercise and Sale: 7,000 shares ($300K approx. pre-tax spread)

Exercise and Sale 6 txns

Insider Hanson Scott McLean

Role Chief Technology Officer

Sold 7,000 shs ($357K)

Approx. gross sale proceeds $357K

Approx. exercise cost $57K

Approx. pre-tax spread $300K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) F1, F6	7,000	$0.00	$0.00
Exercise	Common Stock F1	7,000	$8.12	$57K
Sale	Common Stock F1, F2	600	$49.0592	$29K
Sale	Common Stock F1, F3	900	$50.0827	$45K
Sale	Common Stock F1, F4	3,700	$51.121	$189K
Sale	Common Stock F1, F5	1,800	$51.8615	$93K

Holdings After Transaction: Stock Option (Right to Buy) — 38,279 contracts (Direct); Common Stock — 212,546 shares (Direct)

Footnotes (6)

1. F1. The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026.
2. F2. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $48.61 to $49.59 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3. F3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $49.74 to $50.67 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. F4. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $50.74 to $51.65 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
5. F5. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $51.74 to $52.00 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
6. F6. 1/4 of the shares subject to the option vested on August 16, 2019, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

Key Figures

Options exercised: 7,000 shares Exercise price: $8.12 per share Shares sold: 7,000 shares +5 more

8 metrics

Options exercised 7,000 shares October 15, 2026

Exercise price $8.12 per share Options exercised October 15, 2026

Shares sold 7,000 shares October 15, 2026

Weighted average sale price $49.0592 per share 600 shares

Weighted average sale price $50.0827 per share 900 shares

Weighted average sale price $51.1210 per share 3,700 shares

Weighted average sale price $51.8615 per share 1,800 shares

Stock-option position after transaction 38,279 shares Reported after October 15, 2026 transaction

Key Terms

Rule 10b5-1 plan, weighted average sale price, exercise price

3 terms

Rule 10b5-1 plan regulatory

"under a Rule 10b5-1 plan adopted"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average sale price financial

"reported price in Column 4 is a weighted average sale price"

exercise price financial

"at an exercise price of $8.12"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many AMBQ shares did Scott McLean Hanson sell, and at what prices?

Scott McLean Hanson sold 7,000 shares on October 15, 2026, in four blocks: 600 shares at a weighted average $49.0592 per share, 900 at $50.0827, 3,700 at $51.1210, and 1,800 at $51.8615.

How many AMBQ options did Scott McLean Hanson exercise?

He exercised options to acquire 7,000 common shares at an exercise price of $8.12 per share on October 15, 2026. His reported post-transaction stock-option position was 38,279.

What were the vesting terms for Scott McLean Hanson's AMBQ option?

The option terms state that 1/4 of the shares vested on August 16, 2019, and 1/48 vested in equal monthly installments thereafter, subject to his continued service.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/16/2026 - 04:54 PM EDT Accepted by SEC EDGAR 10/16/2026 - 04:53 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hanson Scott McLean

(Last) (First) (Middle)

C/O AMBIQ MICRO, INC.

6500 RIVER PLACE BLVD BUILDING 7 STE 200

(Street)

AUSTIN TEXAS 78730

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ambiq Micro, Inc. [ AMBQ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/15/2026		M(1)		7,000	A	$8.12	219,546	D
Common Stock	10/15/2026		S(1)		600	D	$49.0592(2)	218,946	D
Common Stock	10/15/2026		S(1)		900	D	$50.0827(3)	218,046	D
Common Stock	10/15/2026		S(1)		3,700	D	$51.121(4)	214,346	D
Common Stock	10/15/2026		S(1)		1,800	D	$51.8615(5)	212,546	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$8.12	10/15/2026		M(1)			7,000	(6)	10/01/2028	Common Stock	7,000	$0	38,279	D

Explanation of Responses:

1. The transactions reported in this Form 4 occurred under a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2026.

2. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $48.61 to $49.59 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $49.74 to $50.67 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $50.74 to $51.65 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $51.74 to $52.00 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

6. 1/4 of the shares subject to the option vested on August 16, 2019, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

	/s/ Jeffrey Winzeler, Attorney-in-Fact	10/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)