[Form 4] Amprius Technologies, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Ricardo C. Rodriguez, Chief Financial Officer of Amprius Technologies, Inc. (AMPX), was granted 200,000 restricted stock units on 10/06/2025. Each restricted stock unit converts to one share of common stock. The award vests 25% on 11/20/2026 with the remainder vesting quarterly on 02/20, 05/20, 08/20 and 11/20 through 11/20/2029, subject to continued service. Following the grant, Mr. Rodriguez beneficially owns 200,000 shares directly. The filing was signed on 10/08/2025.

Positive

• Grant aligns CFO incentives through time-based RSUs that promote retention through 11/20/2029
• Clear vesting schedule with a 25% one-year cliff and quarterly vesting thereafter

Negative

• Potential dilution of 200,000 shares when RSUs are settled into common stock
• No performance-based conditions disclosed, so payout depends solely on continued service and share price

Insights

Compensation & Equity Plan Analyst

RSU grant aligns CFO pay with long-term shareholder value via time-based vesting.

The grant of 200,000 restricted stock units vests over ~4 years, with an initial 25% cliff at one year and quarterly thereafter, which is a standard structure to retain senior finance leadership. This design ties realized compensation to the company’s stock performance and continued service rather than immediate cash payout.

Key dependencies include ongoing service through 11/20/2029 and future share price; investors should note the award increases potential dilution by 200,000 shares when settled. Watch for future disclosures that quantify total share count and dilution impact over the next 12–24 months.

Corporate Governance Specialist

Grant timing and vesting schedule follow customary governance practices for executive retention.

The filing shows direct beneficial ownership of 200,000 shares and a clear time-based vesting schedule that conditions ownership on continued service. There is no indication of performance-based vesting or accelerated vesting triggers disclosed in this form.

Material items to monitor include whether similar grants were made to other executives and any subsequent amendments that introduce acceleration on change-in-control events; such disclosures would appear in later Section 16 filings or proxy statements within the next year.

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
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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^*

RODRIGUEZ RICARDO C.

(Last) (First) (Middle)

1180 PAGE AVE.

(Street)

FREMONT CA 94538

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Amprius Technologies, Inc. [ AMPX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2025

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

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

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

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	10/06/2025		A		200,000(1)	A	$0	200,000	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. The securities are represented by restricted stock units granted on October 6, 2025. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/4th of the restricted stock units subject to the award will vest on November 20, 2026 and the remainder will vest quarterly over three years thereafter, on each February 20, May 20, August 20 and November 20, subject to the reporting person's continued service on each such date, until the award is fully vested on November 20, 2029.

Remarks:

	/s/ Ricardo C. Rodriguez	10/08/2025
	** 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.

FAQ

What did Amprius (AMPX) disclose in the Form 4 filed by Ricardo C. Rodriguez?

Ricardo C. Rodriguez was granted 200,000 restricted stock units on 10/06/2025, each representing one share of common stock, with vesting beginning 11/20/2026 and completing 11/20/2029.

How does the vesting schedule for the CFO's RSUs work?

One-quarter vests on 11/20/2026, then the remainder vests quarterly on 02/20, 05/20, 08/20 and 11/20 each year until 11/20/2029, subject to continued service.

How many shares will Mr. Rodriguez directly own after the grant?

200,000 shares of common stock beneficially owned following the reported transaction.

Does the Form 4 disclose any exercise price or cash paid for the RSUs?

The RSUs were granted at $0 purchase price; the filing lists the price as $0 because these are restricted stock units, not purchases.

Are there performance conditions tied to the RSU vesting?

No performance-based conditions are disclosed; vesting is described as time-based and conditioned on continued service.