Amprius TechnologiesAMPX.WSPreferred / convertible
13F holders, Q4 2024 (December 31)10holders −1
3new positions
3sold out
1famous investor
$0.35avg. 13F price*
At the end of Q4 2024, 10 institutions reported holding Amprius Technologies Inc. (AMPX.WS) in their 13F filings, down 1 from Q3 2024. 3 opened new positions and 3 sold out. The largest holders were LMR Partners LLP ($417K), D. E. Shaw & Co. ($95K) and Stifel Financial Corp. ($86K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).
- Company
- Amprius Technologies Inc.
- CUSIP
- 03214Q116
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $546K |
| Exits | 3 | $317K |
All 13F filers, Q3 2024 → Q4 2024: 1,541,445 shares bought and 2,302,400 shares sold, net −760,955 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 10 holders
| LMR Partners LLP | — | New | 1,173,680 | $417K |
| D. E. Shaw & Co. | — | New | 267,000 | $95K |
| Stifel Financial Corp. | — | Reduce -11.4% | 241,720 | $86K |
| Wolverine Asset Management LLC | — | Reduce -2.3% | 168,638 | $60K |
| Clear Street LLC | — | No change | 119,800 | $43K |
| Warberg Asset Management LLC | — | New | 98,000 | $35K |
| Skaana Management L.P. | — | Reduce -7.5% | 41,055 | $15K |
| Avantax Advisory Services, Inc. | — | No change | 10,000 | $4K |
| UBS Group AG | — | Add +176.0% | 4,267 | $2K |
| Farther Finance Advisors, LLC | — | Add +2200.0% | 46 | $16 |
"% of holder's portfolio" is AMPX.WS's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.