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Insider trade

Amprius Technologies (AMPX)CEO sold ~$448K

Kang Sun, CEO at Amprius Technologies, sold ~$448K of Amprius Technologies shares.

~$448K
Approx. value · 66K sh @ $6.82
1.47M
Holds after · shares reported
Traded
Aug 21, 2025
Filed
Aug 25, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Aug 21, 2025 · this disclosureInsiderCEO sold ~$448K of AMPX shares in the open market

What came next

  1. Aug 21, 2025Insider · 2 peopleInsiders: 2 sales (~$324K)
  2. Oct 6, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On October 6, 2025, Amprius Technologies, Inc. (the "Company") announced that Mr. Ricardo C. Rodriguez had been appointed Chief Financial Officer of the Company.”
  3. Nov 6, 2025Company filing · Form 8-K · ResultsReported its results
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Amprius Technologies

For Amprius Technologies, OQRO holds 3 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its AMPX page.

Other recent filings by Kang Sun, Chief Executive Officer

The full history of Kang Sun, Chief Executive Officer is on the profile page.

How this filing works

Other disclosures at Amprius Technologies

Everything OQRO holds on this company is on its AMPX page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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