Open Insider Trading Activity for Amprius Technologies, Inc. Chief Executive Officer Stepien Thomas M
31-day price and insider activity (up to 2 years)
Daily candles with triangles for the buy and sale transactions shown below. Scroll left or zoom out to load earlier candles (up to 2 years).
▲ Insider buy
▼ Insider sale
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Charting by TradingView Lightweight Charts
| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. AMPX | 2026-06-05 | 2026-06-04 | Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer | Sell | 1 | 2,000 | $20.97 | $41,940.00 | 0.32% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting AMPX | 2026-05-28 | 2026-05-27 | Amprius Technologies, Inc. | Stepien Thomas M | Chief Executive Officer | Sell | 1 | 4,375 | $17.19 | $75,206.25 | 0.63% | View Filing |