Director at Ambiq Micro (NASDAQ: AMBQ) receives 4,957-share RSU grant

Rhea-AI Filing Summary

Banks Bernard Bennett reported acquisition or exercise transactions in this Form 4 filing.

Ambiq Micro, Inc. director Bernard Bennett Banks received an equity grant in the form of restricted stock units. The award covers 4,957 shares of common stock at no purchase price and represents a compensation-related grant rather than an open-market transaction.

The RSUs vest in three equal annual installments after the grant date. Each installment vests on the earlier of the first, second, and third anniversaries of the grant date or the company’s corresponding first three annual stockholder meetings, subject to the director’s continuous service under Ambiq Micro’s 2025 Equity Incentive Plan.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Banks Bernard Bennett

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	4,957	$0.00	--

Holdings After Transaction: Common Stock — 4,957 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 4,957 shares Price per RSU: $0.00 per share Shares after transaction: 4,957 shares +1 more

4 metrics

RSU grant size 4,957 shares Restricted stock units awarded to director

Price per RSU $0.00 per share Reported transaction price on grant

Shares after transaction 4,957 shares Total common stock reported following grant

Vesting installments 3 equal annual tranches RSUs vest over three annual periods

Key Terms

restricted stock units ("RSUs"), Continuous Service, 2025 Equity Incentive Plan

3 terms

restricted stock units ("RSUs") financial

"Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Continuous Service financial

"subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan)"

2025 Equity Incentive Plan financial

"as defined in the Issuer's 2025 Equity Incentive Plan"

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Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Banks Bernard Bennett

(Last) (First) (Middle)

C/O AMBIQ MICRO, INC.

6500 RIVER PLACE BLVD., BLDG 7 SUITE 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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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	06/08/2026		A		4,957(1)	A	$0	4,957	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

Explanation of Responses:

1. Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

	/s/ Jeffrey Winzeler, Attorney-in-Fact	06/10/2026
	** 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)

FAQ

What insider transaction did Ambiq Micro (AMBQ) report for Bernard Bennett Banks?

Ambiq Micro reported that director Bernard Bennett Banks received a grant of 4,957 restricted stock units, representing a right to receive the same number of common shares as equity compensation, rather than buying shares in the open market.

How many Ambiq Micro (AMBQ) shares are covered by the new RSU grant?

The award covers 4,957 restricted stock units, each tied to one share of Ambiq Micro common stock. These units vest over time, meaning the director earns the underlying shares gradually instead of receiving all of them immediately at grant.

What is the vesting schedule for Bernard Bennett Banks’ Ambiq Micro RSUs?

The 4,957 RSUs vest in three equal annual installments. Each installment vests on the earlier of the first, second, or third anniversary of the grant date, or the company’s first three annual stockholder meetings, assuming the director’s continuous service.

Does Bernard Bennett Banks pay anything for the Ambiq Micro RSU grant?

No cash payment is required for the RSU grant, which is reported at a per-share price of $0.00. The award functions as stock-based compensation, giving the director contingent rights to receive common shares upon vesting conditions being satisfied.

What happens if Bernard Bennett Banks stops serving as an Ambiq Micro director?

Vesting of the RSUs is conditioned on continuous service under Ambiq Micro’s 2025 Equity Incentive Plan. If service ends before a vesting date, unvested units may lapse, although specific outcomes depend on the plan’s detailed provisions and circumstances.