Amprius TechnologiesAMPX.WSPreferred / convertible
13F holders, Q2 2025 (June 30)11holders +2
3new positions
1sold out
1famous investor
$0.52avg. 13F price*
At the end of Q2 2025, 11 institutions reported holding Amprius Technologies Inc. (AMPX.WS) in their 13F filings, up 2 from Q1 2025. 3 opened new positions and 1 sold out. The largest holders were LMR Partners LLP ($1.5M), D. E. Shaw & Co. ($139K) and Toronto Dominion Bank ($130K). 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $169K |
| Exits | 1 | $412 |
All 13F filers, Q1 2025 → Q2 2025: 860,347 shares bought and 903 shares sold, net +859,444 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 11 holders
| LMR Partners LLP | — | Add +19.4% | 2,945,895 | $1.5M |
| D. E. Shaw & Co. | — | No change | 267,000 | $139K |
| Toronto Dominion Bank | — | New | 250,000 | $130K |
| Stifel Financial Corp. | — | No change | 241,720 | $126K |
| Wolverine Asset Management LLC | — | Add +34.5% | 220,066 | $114K |
| Clear Street LLC | — | No change | 119,800 | $62K |
| Susquehanna International Group, LLP | — | New | 74,433 | $39K |
| Strategies Wealth Advisors, LLC | — | No change | 20,000 | $10K |
| Avantax Advisory Services, Inc. | — | No change | 10,000 | $5K |
| Bank of Montreal | — | New | 100 | $52 |
| Farther Finance Advisors, LLC | — | Reduce -95.7% | 2 | $1 |
"% of holder's portfolio" is AMPX.WS's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.