Amprius TechnologiesAMPX.WSPreferred / convertible
13F holders, Q3 2024 (September 30)11holders −1
2new positions
2sold out
$0.14avg. 13F price*
At the end of Q3 2024, 11 institutions reported holding Amprius Technologies Inc. (AMPX.WS) in their 13F filings, down 1 from Q2 2024. 2 opened new positions and 2 sold out. The largest holders were Walleye Capital LLC ($241K), Cowen and Company, LLC ($145K) and Westchester Capital Management, LLC ($55K).
- Company
- Amprius Technologies Inc.
- CUSIP
- 03214Q116
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $17K |
| Exits | 2 | $206K |
All 13F filers, Q2 2024 → Q3 2024: 119,802 shares bought and 1,510,640 shares sold, net −1,390,838 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 11 holders
| Walleye Capital LLC | — | No change | 1,722,141 | $241K |
| Cowen and Company, LLC | — | Reduce -19.4% | 1,036,921 | $145K |
| Westchester Capital Management, LLC | — | No change | 393,327 | $55K |
| Stifel Financial Corp. | — | Reduce -8.9% | 272,920 | $38K |
| Wolverine Asset Management LLC | — | Reduce -0.3% | 172,617 | $24K |
| Walleye Trading LLC | — | No change | 148,430 | $21K |
| Clear Street LLC | — | New | 119,800 | $17K |
| Skaana Management L.P. | — | Reduce -31.1% | 44,378 | $6K |
| Avantax Advisory Services, Inc. | — | No change | 10,000 | $1K |
| UBS Group AG | — | Reduce -77.3% | 1,546 | $216 |
| Farther Finance Advisors, LLC | — | New | 2 | $0 |
"% of holder's portfolio" is AMPX.WS's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.