Donald R. Dixon - 12 Jun 2026 Form 4 Insider Report for Amprius Technologies, Inc. (AMPX)

Reporting relationship: Director
Issuer ticker: AMPX
Reported as of: 12 Jun 2026
Net transaction value: -$1,459,212
SEC form: 4
Accepted by SEC: 16 Jun 2026, 18:00:52 UTC
Prior SEC filing: 11 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Ricardo C. Rodriguez, attorney-in-fact on behalf of Donald R. Dixon

Key filing fact

Donald R. Dixon filed Form 4 for Amprius Technologies, Inc. (AMPX) on 16 Jun 2026.

Key facts

This page summarizes Donald R. Dixon's Form 4 filing for Amprius Technologies, Inc. (AMPX).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Jun 2026, 18:00.

Change

Previous filing in this sequence was filed on 11 Jun 2026.
Current net transaction value: -$1,459,212.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001045434 Primary reporting owner

DIXON DONALD R

Relationship: Director
Address: C/O AMPRIUS TECHNOLOGIES, INC.,, 1180 PAGE AVENUE, FREMONT
Signature: /s/ Ricardo C. Rodriguez, attorney-in-fact on behalf of Donald R. Dixon
Signature date: 16 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMPX transaction

Common stock

Award

Transaction value
Shares: +10,423
Change %: +3.9%
Price: $0.000000^*
Shares after: 280,079
Date: 12 Jun 2026
Ownership: Direct
Footnotes: F1, F2

AMPX transaction

Common stock

Sale

Transaction value: $1,459,212
Shares: -85,000
Change %: -19%
Price: $17.17
Shares after: 359,380
Date: 15 Jun 2026
Ownership: See Footnote
Footnotes: F4

AMPX holding

Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 163,142
Date: 12 Jun 2026
Ownership: See Footnote
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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

Footnote F4

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