Chu Steven
- SEC CIK
- 0001296381
In the past year, 1 open-market sale filing worth $5.86M and no purchases.
Current role at each company
- AMPX Amprius Technologies, Inc.Directoras of Jun 16, 2026
- ZY Zymergen Inc.Directoras of Oct 19, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $5.86M
- 1 filing
- Net
- −$5.86M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Chu Steven as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
AMPX Amprius Technologies, Inc.
Director1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 12, 2026 (view filing) | Mar 10-12 | 2 days | Chu StevenDirector | SSale | −322.2K | $18.20 | −$5.86M | −71.7%127.3K after | 4 lots |