Amprius Technologies (AMPX) director reports 85,000-share sale and RSU grant

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Amprius Technologies director Donald R. Dixon reported both an insider sale and an equity award in common stock. An entity associated with him, Donald & Elizabeth Dixon 2004 Family Partners, completed an open-market sale of 85,000 shares of Amprius Technologies common stock at an average price of $17.1672 per share, leaving 359,380 shares held indirectly after the transaction. Separately, Dixon received a grant of 10,423 restricted stock units, each representing one share of common stock, bringing his directly held common stock (including these units) to 280,079 shares.

Insider Trade Summary

Net Seller: 85,000 shares ($1,459,212)

Net Sell 3 txns

Insider DIXON DONALD R

Role null

Sold 85,000 shs ($1.46M)

Type	Security	Shares	Price	Value
Sale	Common stock	85,000	$17.1672	$1.46M
Grant/Award	Common stock	10,423	$0.00	--
holding	Common stock	--	--	--

Holdings After Transaction: Common stock — 359,380 shares (Indirect, See Footnote); Common stock — 280,079 shares (Direct, null)

Footnotes (1)

The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date. Includes 10,423 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit. These shares of common stock held by Donald & Elizabeth Dixon 2004 Family Partners, of which Mr. Dixon is a co-general partner. These securities are held directly by The Dixon Revocable Trust, for which the reporting person and his spouse are co-trustees.

Key Figures

Shares sold: 85,000 shares Sale price: $17.1672 per share Indirect holdings after sale: 359,380 shares +2 more

5 metrics

Shares sold 85,000 shares Open-market sale of Amprius Technologies common stock

Sale price $17.1672 per share Average price for the 85,000-share sale

Indirect holdings after sale 359,380 shares Shares held by Donald & Elizabeth Dixon 2004 Family Partners after sale

RSU grant size 10,423 units Restricted stock units granted to Donald R. Dixon

Direct holdings after grant 280,079 shares Direct common stock holdings including 10,423 RSUs

Key Terms

restricted stock units, open-market sale, grant, award, or other acquisition, indirect ownership, +1 more

5 terms

restricted stock units financial

"The securities are represented by restricted stock units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

indirect ownership financial

"ownership_type": "indirect""

co-general partner financial

"of which Mr. Dixon is a co-general partner."

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Form 4 Insider Transactions: What Each Field Means →

06/16/2026 - 06:00 PM

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^*

DIXON DONALD R

(Last)

(First)

(Middle)

C/O AMPRIUS TECHNOLOGIES, INC.,

1180 PAGE AVENUE

(Street)

FREMONT

CALIFORNIA

94538

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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)
06/12/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock	06/12/2026		A		10,423⁽¹⁾	A	$0	280,079⁽²⁾	D
Common stock								163,142	I	See Footnote⁽³⁾
Common stock	06/15/2026		S		85,000	D	$17.1672	359,380	I	See Footnote⁽⁴⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of issuer's common stock. 100% of the restricted stock units vest on the earlier of (i) the one-year anniversary of the date the restricted stock units were granted and (ii) the day before the next annual meeting of stockholders, subject to the reporting person's continued service as of the vesting date.

2. Includes 10,423 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit.

3. These shares of common stock held by Donald & Elizabeth Dixon 2004 Family Partners, of which Mr. Dixon is a co-general partner.

4. These securities are held directly by The Dixon Revocable Trust, for which the reporting person and his spouse are co-trustees.

Remarks:

	/s/ Ricardo C. Rodriguez, attorney-in-fact on behalf of Donald R. Dixon	06/16/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Amprius Technologies (AMPX) report for Donald R. Dixon?

The filing shows an entity associated with director Donald R. Dixon sold 85,000 shares of Amprius Technologies common stock and he received 10,423 restricted stock units as an equity award, reflecting both a sale and an acquisition in this Form 4.

How many Amprius Technologies (AMPX) shares were sold in the latest Form 4?

An entity associated with director Donald R. Dixon sold 85,000 shares of Amprius Technologies common stock in an open-market transaction at an average price of $17.1672 per share, according to the reported Form 4 insider trading data.

What equity award did Donald R. Dixon receive from Amprius Technologies (AMPX)?

Donald R. Dixon received 10,423 restricted stock units, each representing a right to one share of Amprius Technologies common stock. These units vest in full on the earlier of the one-year grant anniversary or the day before the next annual stockholder meeting, subject to continued service.

What are Donald R. Dixon’s reported holdings after the Amprius Technologies (AMPX) transactions?

After the reported transactions, an associated family partnership holds 359,380 shares of Amprius Technologies common stock indirectly, and Dixon directly holds 280,079 shares, including 10,423 restricted stock units contingent on vesting conditions described in the filing footnotes.

How do the restricted stock units for Amprius Technologies (AMPX) vest for Donald R. Dixon?

The restricted stock units vest 100% on the earlier of the one-year anniversary of the grant date or the day before Amprius Technologies’ next annual stockholder meeting, provided Donald R. Dixon continues his service through that vesting date, as outlined in the footnotes.