InsiderTrades

Sun Kang

SEC CIK 1476220 · EDGAR

Buying vs selling by month open-market trades, last 29 months, AMPX
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
AMPXAmprius Technologies, Inc.See Remarks, Dir 1.22M — $58.51M 232024-03-192026-08-21

Most active insiders at AMPX, 12 months

#InsiderTitleBoughtSold
1 Sun KangDir —$57.63M
2 Stefan Constantin IonelCTO —$10.69M
3 HSIEH Wen HsuanDir —$7.62M
4 Chu StevenDir —$5.86M
5 DIXON DONALD RDir —$2.54M
6 Stepien Thomas MPres, Dir —$1.34M
7 RODRIGUEZ RICARDO C.CFO ——
8 SATTERTHWAITE LIVINGSTONDir ——
9 BAYLESS KATHLEEN ADir ——

Transactions 23

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-08-25 17:22 2026-08-21 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale $10.34 -62.1K 1.22M -5% -$642.2K
2026-05-28 18:24 2026-05-27 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale $17.19 -356 1.28M -0.0% -$6,121
2026-05-26 19:31 2026-05-21 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale $14.79 -67.8K 1.28M -5% -$1.00M
2026-05-07 16:51 2026-05-05 AMPX Amprius Technologies, Inc. Sun Kang Dir A - Grant $0.00 +6,250 1.35M +0.5% $0
DM 2026-04-02 16:51 2026-04-01 AMPX Amprius Technologies, Inc. Sun Kang Dir M - OptEx $2.02 +1.50M 2.84M +112% +$3.03M
DM 2026-04-02 16:51 2026-04-01 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale+OE $15.91 -1.50M 1.34M -53% -$23.86M
MI 2026-03-24 2026-03-23 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale $18.80 -217.9K 121.5K -64% -$4.10M
2026-02-24 2026-02-23 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale $10.16 -61.3K 1.34M -4% -$622.3K
DM 2026-01-20 2026-01-16+ AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale+OE $11.07 -993.7K 1.40M -41% -$11.00M
DM 2026-01-20 2026-01-16+ AMPX Amprius Technologies, Inc. Sun Kang Dir M - OptEx $2.40 +993.7K 2.35M +73% +$2.38M
D 2026-01-14 2026-01-12 AMPX Amprius Technologies, Inc. Sun Kang Dir S - Sale+OE $10.10 -506.3K 1.40M -27% -$5.11M
DM 2026-01-14 2026-01-12 AMPX Amprius Technologies, Inc. Sun Kang Dir M - OptEx $1.80 +506.3K 1.91M +36% +$913.3K
2025-11-25 2025-11-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $10.08 -68.7K 1.40M -5% -$692.0K
DM 2025-11-19 2025-11-17 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir M - OptEx $0.2781 +1.00M 2.40M +71% +$278.1K
D 2025-11-19 2025-11-17 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale+OE $10.60 -1.00M 1.47M -40% -$10.60M
2025-08-25 2025-08-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $6.82 -65.7K 1.47M -4% -$447.8K
2025-05-23 2025-05-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $2.43 -69.8K 1.81M -4% -$169.6K
2025-03-21 2025-03-19 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir A - Grant $0.00 +599.4K 1.88M +47% $0
2025-02-24 2025-02-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $3.13 -34.4K 1.28M -3% -$107.5K
2024-11-22 2024-11-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $1.96 -33.8K 1.32M -3% -$66.2K
2024-08-22 2024-08-21 AMPX Amprius Technologies, Inc. Sun Kang CEO, Dir S - Sale $1.04 -33.3K 1.35M -2% -$34.7K
M 2024-05-24 2024-05-21+ AMPX Amprius Technologies, Inc. Sun Kang See Remarks, Dir S - Sale $1.34 -35.6K 1.40M -2% -$47.8K
2024-03-19 2024-03-19 AMPX Amprius Technologies, Inc. Sun Kang See Remarks, Dir A - Grant $0.00 +1.42M 1.42M New $0

Purchase Sale Sale after option exercise All abbreviations