Sandra Wallach - 21 Aug 2025 Form 4 Insider Report for Amprius Technologies, Inc. (AMPX)

Reporting relationship: Chief Financial Officer
Issuer ticker: AMPX
Reported as of: 21 Aug 2025
Net transaction value: -$193,512
SEC form: 4
Accepted by SEC: 25 Aug 2025, 20:02:10 UTC
Prior SEC filing: 23 May 2025
Source filing: View source filing
Reporting owner signature: /s/ Sandra Wallach

Key filing fact

Sandra Wallach filed Form 4 for Amprius Technologies, Inc. (AMPX) on 25 Aug 2025.

Key facts

This page summarizes Sandra Wallach's Form 4 filing for Amprius Technologies, Inc. (AMPX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 25 Aug 2025, 20:02.

Change

Previous filing in this sequence was filed on 23 May 2025.
Current net transaction value: -$193,512.

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 0001698362 Primary reporting owner

Wallach Sandra

Relationship: Chief Financial Officer
Address: C/O AMPRIUS TECHNOLOGIES, INC.,, 1180 PAGE AVENUE, FREMONT
Signature: /s/ Sandra Wallach
Signature date: 25 Aug 2025

Reported non-derivative transactions

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

AMPX transaction

Common stock

Sale

Transaction value: $193,512
Shares: -28,390
Change %: -2.7%
Price: $6.82
Shares after: 1,005,275
Date: 21 Aug 2025
Ownership: Direct
Footnotes: F1, F2, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units.

Footnote F2

The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $6.78 to $6.91, inclusive. 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 above.

Footnote F3

Includes 803,914 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.