Stepien Thomas M — SEC Form 4 filings
SEC reporting owner CIK 2067233. 8 Form 4 filings on record with FilingPulse; latest filed 2026-08-25.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2025-05-06 to 2026-08-25. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 5 legs across 4 filings — 98,606 shares, $1,338,400 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: sale of 60,702 shares @ $14.79 ($897,685) in Amprius Technologies, Inc., filed 2026-05-26.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Amprius Technologies, Inc. (AMPX) | Chief Executive Officer, Director | 8 | — | 5 legs · 98,606 sh · $1,338,400 | 12 |
Form 4 filings — Stepien Thomas M
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-25 | 4 | Amprius Technologies, Inc. (AMPX) | Sale (S): 23,529 @ $10.34 · Sale (S): 8,000 @ $10.03 · Gift (G): 5,000 @ $0 · Gift (G): 5,000 @ $0 · Gift (G): 5,000 @ $0 · Gift (G): 346 @ $0 · +1 more | EDGAR |
| 2026-06-05 | 4 | Amprius Technologies, Inc. (AMPX) | Gift (G): 30,384 @ $0 · Gift (G): 36,914 @ $0 · Gift (G): 36,914 @ $0 · Sale (S): 2,000 @ $20.97 | EDGAR |
| 2026-05-28 | 4 | Amprius Technologies, Inc. (AMPX) | Sale (S): 4,375 @ $17.19 | EDGAR |
| 2026-05-26 | 4 | Amprius Technologies, Inc. (AMPX) | Sale (S): 60,702 @ $14.79 | EDGAR |
| 2026-05-07 | 4/A | Amprius Technologies, Inc. (AMPX) | Grant/award (A): 200,000 @ $0 | EDGAR |
| 2026-03-06 | 4 | Amprius Technologies, Inc. (AMPX) | Grant/award (A): 150,000 @ $0 | EDGAR |
| 2025-12-22 | 4 | Amprius Technologies, Inc. (AMPX) | Grant/award (A): 200,000 @ $0 | EDGAR |
| 2025-05-06 | 4 | Amprius Technologies, Inc. (AMPX) | Grant/award (A): 400,000 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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