Kang Sun sold $448K of Amprius Technologies (AMPX)

Executed Aug 21 2025, disclosed Aug 25 2025, 4 days later.

Value, as filed

$448K

65,654 sh × $6.82

Executed

Aug 21 2025

the trade date, as filed

Disclosed

Aug 25 2025

4 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

Kang Sun Director profile →

Kang Sun (Director) filed 9 Form 4 reports in the trailing twelve months (0 purchases, 9 sales), most often in Amprius Technologies, Inc. (AMPX). The largest single filing was $23.9M of AMPX (1,500,000 sh across 2 lots, as filed), executed Apr 1.

The name

AMPX

Amprius Technologies, Inc. AMPX · Industrials · 29 filings in 24 months ticker →

Industrials · Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications

More Industrials filings→ Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by Kang Sun in AMPX

AMPXSALE Amprius Technologies, Inc. $642K
62,101 sh × $10.34
Exec Aug 21
Filed Aug 25 · 5:22 PM ET AMPXSALE Amprius Technologies, Inc. $1.0M
67,796 sh × $14.79
Exec May 21
Filed May 26 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $23.9M
1,500,000 sh across 2 lots
Exec Apr 1
Filed Apr 2 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $4.1M
217,869 sh across 2 lots
Exec Mar 23
Filed Mar 24 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $622K
61,251 sh × $10.16
Exec Feb 23
Filed Feb 24 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $11.0M
993,733 sh across 2 lots
Exec Jan 16
Filed Jan 20 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $5.1M
506,267 sh × $10.10
Exec Jan 12
Filed Jan 14 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. $692K
68,655 sh × $10.08
Exec Nov 21 2025
Filed Nov 25 2025 · 5:30 PM ET