AMPXAmprius Technologies, Inc.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-08-25.
Insider buys (90d)
$0.00
Insider sells (90d)
$1.27M
Net flow
$-1.27M
Filings
3
Buy transactions
0
Sell transactions
4
Distinct insiders
3
Last close (cached)
$9.73
as of 2026-09-23
1d return
-2.5%
5d return
+6.9%
1m return
-1.3%
Top insiders trading AMPX (90d)
Recent transactions (9)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-25 | 2026-08-25 | Stepien Thomas M OfficerDirector | Grant | 346 | $0.00 | $0.00 | open → |
| 2026-08-25 | 2026-08-25 | Stepien Thomas M OfficerDirector | Gift | 346 | $0.00 | $0.00 | open → |
| 2026-08-25 | 2026-08-25 | Stepien Thomas M OfficerDirector | Gift | 5,000 | $0.00 | $0.00 | open → |
| 2026-08-25 | 2026-08-25 | Stepien Thomas M OfficerDirector | Gift | 5,000 | $0.00 | $0.00 | open → |
| 2026-08-25 | 2026-08-25 | Stepien Thomas M OfficerDirector | Gift | 5,000 | $0.00 | $0.00 | open → |
| 2026-08-25 | 2026-08-24 | Stepien Thomas M OfficerDirector | Sale | 8,000 | $10.03 | $80.2K | open → |
| 2026-08-25 | 2026-08-21 | Stepien Thomas M OfficerDirector | Sale | 23,529 | $10.34 | $243.3K | open → |
| 2026-08-25 | 2026-08-21 | Stefan Constantin Ionel Officer | Sale | 29,681 | $10.34 | $306.9K | open → |
| 2026-08-25 | 2026-08-21 | Sun Kang Director | Sale | 62,101 | $10.34 | $642.2K | open → |
Other tickers these insiders trade
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