KS
Insider
Kang Sun
DirectorKang 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.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
9
0 buys · 9 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$57.6M
shares × price, as filed
Last traded
Aug 21
Filed Aug 25
Median ADV $72.5M across their filed names
Open performance→Volume by month
Buys $0
Sells $58.3M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Industrials
9 filings
Sector per market data · by filing · past 12 months
Most traded names
AMPXRecent filings
AMPXSALE
Amprius Technologies, Inc.
View filing →
$10.6M1,000,000 sh × $10.60
Exec Nov 17 2025
Filed Nov 19 2025 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. View filing → $448K
65,654 sh × $6.82
Exec Aug 21 2025
Filed Aug 25 2025 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. View filing → $170K
69,786 sh × $2.43
Exec May 21 2025
Filed May 23 2025 · 5:30 PM ET AMPXSALE Amprius Technologies, Inc. View filing → $108K
34,353 sh × $3.13
Exec Feb 21 2025
Filed Feb 24 2025 · 5:30 PM ET