Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Stepien Thomas M
Over the trailing 90 days, Stepien Thomas M (Director at Amprius Technologies, Inc.) sold $1.0M of stock in AMPX, per 6 SEC Form 4 transactions.
- Role
- Director
- Companies
- AMPX
- Window
- Trailing 90 days · 6 transactions · CIK 2067233
- Net activity
- −$1.0M ($0 bought · $1.0M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| AMPX | Amprius Technologies, Inc. | 6 | — | $1.0M | −$1.0M |
Transactions (6)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-06-04 | AMPX | Buy | 36.9K | $0 | Gift (bona fide) |
| 2026-06-04 | AMPX | Sell | 2.0K | $42K | Open market or private sale |
| 2026-06-04 | AMPX | Sell | 36.9K | $0 | Gift (bona fide) |
| 2026-06-04 | AMPX | Sell | 30.4K | $0 | Gift (bona fide) |
| 2026-05-27 | AMPX | Sell | 4.4K | $75K | Open market or private sale |
| 2026-05-21 | AMPX | Sell | 60.7K | $898K | Open market or private sale |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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