Amprius TechnologiesAMPX
13F holders, Q1 2025 (March 31)100holders +9
30new positions
21sold out
4famous investors
$2.68avg. 13F price*
At the end of Q1 2025, 100 institutions reported holding Amprius Technologies Inc. (AMPX) in their 13F filings, up 9 from Q4 2024. 30 opened new positions and 21 sold out. The largest holders were Vanguard Group Inc. ($13.0M), Board of Trustees of The Leland Stanford Junior University ($3.9M) and Millennium Management ($3.7M). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Amprius Technologies Inc.
- CUSIP
- 03214Q108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 30 | $7.2M |
| Exits | 21 | $2.5M |
All 13F filers, Q4 2024 → Q1 2025: 7,442,551 shares bought and 3,243,313 shares sold, net +4,199,238 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 100 holders
| Vanguard Group Inc. | 0.00% | Add +16.3% | 4,861,137 | $13.0M |
| Board of Trustees of The Leland Stanford Junior University | 0.33% | No change | 1,457,557 | $3.9M |
| Millennium Management | 0.00% | Add +94.5% | 1,396,013 | $3.7M |
| Invesco Ltd. | 0.00% | Reduce -53.0% | 1,166,556 | $3.1M |
| UBS Group AG | 0.00% | Add +532.7% | 1,110,121 | $3.0M |
| BlackRock, Inc. | 0.00% | Add +87.9% | 1,074,052 | $2.9M |
| Marshall Wace, LLP | 0.00% | Add +1674.8% | 951,937 | $2.6M |
| Essex Investment Management Co. LLC | 0.52% | New | 935,815 | $2.5M |
| Stifel Financial Corp. | 0.00% | Add +0.6% | 900,783 | $2.4M |
| Susquehanna International Group, LLP | 0.00% | Add +23.2% | 823,160 | $2.2M |
| Geode Capital Management, LLC | 0.00% | Add +2.4% | 594,958 | $1.6M |
| Baird Financial Group, Inc. | 0.00% | New | 500,499 | $1.3M |
| Oppenheimer & Co. Inc. | 0.02% | Add +319.4% | 491,378 | $1.3M |
| State Street Corp. | 0.00% | Add +8.6% | 416,443 | $1.1M |
| Two Sigma Investments, LP | 0.00% | Reduce -7.2% | 411,478 | $1.1M |
| Legato Capital Management LLC | 0.10% | New | 277,553 | $744K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +30.0% | 257,943 | $691K |
| Blackstone Inc. | 0.00% | No change | 257,923 | $691K |
| Goldman Sachs Group Inc. | 0.00% | Add +128.6% | 244,646 | $656K |
| Northern Trust Corp. | 0.00% | Add +2.9% | 214,427 | $575K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 195,000 | $523K |
| Morgan Stanley | 0.00% | Add +30.2% | 183,638 | $492K |
| Apis Capital Advisors, LLC | 0.22% | New | 166,000 | $445K |
| HITE Hedge Asset Management LLC | 0.03% | New | 161,444 | $433K |
| LPL Financial LLC | 0.00% | Add +10.3% | 122,859 | $329K |
| FNY Investment Advisers, LLC | 0.19% | New | 111,252 | $298K |
| Jane Street Group, LLC | 0.00% | Reduce -59.0% | 105,983 | $284K |
| HRT Financial LP | 0.00% | New | 96,011 | $257K |
| Group One Trading LLC | 0.01% | Reduce -39.4% | 89,901 | $241K |
| Bank of America Corp. | 0.00% | Add +552.9% | 84,154 | $226K |
| AQR Capital Management | 0.00% | Add +86.7% | 77,764 | $208K |
| Lexington Partners L.P. | 1.93% | No change | 76,764 | $206K |
| Verition Fund Management LLC | 0.00% | New | 68,298 | $183K |
| Royal Bank of Canada | 0.00% | Add +155.2% | 65,459 | $176K |
| Jump Financial, LLC | 0.00% | New | 64,796 | $174K |
| Alliancebernstein L.P. | 0.00% | No change | 58,460 | $157K |
| Walleye Capital LLC | 0.00% | New | 55,071 | $148K |
| B. Riley Wealth Advisors, Inc. | 0.00% | Add +2.2% | 46,500 | $125K |
| State of Wisconsin Investment Board | 0.00% | New | 46,100 | $124K |
| Simplex Trading, LLC | 0.00% | New | 46,103 | $123K |
| Two Sigma Advisers, LP | 0.00% | Reduce -3.5% | 44,100 | $118K |
| Axq Capital, LP | 0.04% | Add +155.5% | 39,994 | $107K |
| Barclays PLC | 0.00% | Reduce -18.6% | 36,175 | $97K |
| Bank of New York Mellon Corp | 0.00% | Add +189.7% | 31,554 | $85K |
| Deutsche Bank AG | 0.00% | No change | 30,931 | $83K |
| Citadel Advisors | 0.00% | New | 29,407 | $79K |
| Nuveen, LLC | 0.00% | — | 23,300 | $62K |
| MIdWestOne Financial Group, Inc. | 0.01% | New | 17,593 | $47K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +21.0% | 16,261 | $44K |
| Focus Partners Wealth | 0.00% | Add +0.0% | 15,984 | $43K |
| Rhumbline Advisers | 0.00% | Add +61.1% | 15,690 | $42K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +224.1% | 15,428 | $41K |
| Cornerstone Partners Capital Management, LLC | 0.09% | New | 15,353 | $41K |
| Raymond James Financial Inc. | 0.00% | New | 15,329 | $41K |
| ExodusPoint Capital Management, LP | 0.00% | New | 15,336 | $41K |
| Cannell & Spears LLC | 0.00% | Reduce -42.7% | 15,055 | $40K |
| Edmond DE Rothschild Holding S.A. | 0.00% | New | 14,970 | $40K |
| Renaissance Technologies | 0.00% | Reduce -98.1% | 14,400 | $39K |
| Citigroup Inc. | 0.00% | Reduce -21.6% | 12,157 | $33K |
| New York State Common Retirement Fund | 0.00% | No change | 12,037 | $32K |
| Belvedere Trading LLC | 0.00% | New | 12,017 | $32K |
| Wells Fargo & Company | 0.00% | Reduce -8.1% | 11,342 | $30K |
| Orion Porfolio Solutions, LLC | 0.00% | New | 10,239 | $27K |
| Orion Portfolio Solutions, LLC | 0.00% | New | 10,239 | $27K |
| Sei Investments Co. | 0.00% | No change | 10,229 | $27K |
| Clear Street LLC | 0.00% | Reduce -33.1% | 10,000 | $27K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.1% | 9,833 | $26K |
| FMR LLC | 0.00% | Add +68.8% | 8,873 | $24K |
| JPMorgan Chase & Co. | 0.00% | Add +11.4% | 8,363 | $22K |
| Corebridge Financial, Inc. | 0.00% | Add +2.9% | 8,041 | $22K |
| BNP Paribas Financial Markets | 0.00% | Reduce -31.4% | 5,747 | $15K |
| Parallel Advisors, LLC | 0.00% | New | 5,242 | $14K |
| Cwm, LLC | 0.00% | Add +174.0% | 4,934 | $13K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -5.1% | 4,228 | $11K |
| Farther Finance Advisors, LLC | 0.00% | Add +17226.1% | 3,985 | $10K |
| Summit Securities Group LLC | 0.00% | New | 2,479 | $7K |
| DHJJ Financial Advisors, Ltd. | 0.00% | No change | 2,000 | $5K |
| Eastern Bank | 0.00% | No change | 2,000 | $5K |
| Brooklyn Investment Group | 0.00% | New | 1,986 | $5K |
| Kestra Advisory Services, LLC | 0.00% | New | 1,500 | $4K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -7.8% | 1,301 | $3K |
| Osaic Holdings, Inc. | 0.00% | Add +147.4% | 1,200 | $3K |
| California State Teachers Retirement System | 0.00% | No change | 1,015 | $3K |
| Ameriflex Group, Inc. | 0.00% | No change | 1,000 | $3K |
| STRS Ohio | 0.00% | No change | 1,000 | $3K |
| Amalgamated Bank | 0.00% | Add +212.7% | 566 | $2K |
| Legal & General Group Plc | 0.00% | No change | 699 | $2K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 444 | $1K |
| Delta Asset Management LLC | 0.00% | Add +75.0% | 350 | $938 |
| US Bancorp \de | 0.00% | New | 341 | $914 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -19.4% | 224 | $600 |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 222 | $595 |
| WealthTrak Capital Management LLC | 0.00% | No change | 130 | $349 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 87 | $233 |
| Allworth Financial LP | 0.00% | New | 81 | $202 |
| IFP Advisors, Inc | 0.00% | Add +633.3% | 66 | $177 |
| Arax Advisory Partners | 0.00% | New | 60 | $161 |
| Hollencrest Capital Management | 0.00% | No change | 40 | $107 |
| Sterling Capital Management LLC | 0.00% | No change | 14 | $38 |
| True Wealth Design, LLC | 0.00% | New | 13 | $35 |
"% of holder's portfolio" is AMPX's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.