Amprius Technologies, Inc.
AMPX- Exchange
- NYSE
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001899287
In the last 90 days, Amprius Technologies, Inc. insiders filed 0 open-market purchases and 3 sales; 261 institutions reported holding it in 13F filings for Q2 2026, worth $1.35B in total; no superinvestor holds it.
Other share classesAMPX.WT
13F holders, Q4 2025
Institutional positions in Amprius Technologies, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 206
- +21 vs. Q3 2025
- Shares held
- 67.7M
- +4.31M (+6.8%) vs. Q3 2025
- Total value
- $534.7M
- −$132.7M (−19.9%) vs. Q3 2025
- New holders
- 49
- 86 more added
- Sold out
- 28
- 53 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 261 | $1.35B |
| Q1 2026 | 245 | $1.42B |
| Q4 2025 | 206 | $534.7M |
| Q3 2025 | 187 | $669.4M |
| Q2 2025 | 121 | $160.4M |
| Q1 2025 | 100 | $55.8M |
| Q4 2024 | 91 | $46.6M |
| Q3 2024 | 66 | $9.17M |
| Q2 2024 | 65 | $9.71M |
| Q1 2024 | 50 | $13.1M |
| Q4 2023 | 49 | $23.5M |
| Q3 2023 | 46 | $20.0M |
| Q2 2023 | 41 | $19.5M |
| Q1 2023 | 26 | $17.1M |
| Q4 2022 | 22 | $14.8M |
| Q3 2022 | 13 | $11.7M |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Amprius Technologies, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Driehaus Capital Management LLC | 2,393,212 | $18.9M | 0.13% | −697,457−22.6% | Reduced |
| State Street Corp | 2,553,710 | $20.1M | 0.00% | +363,928+16.6% | Added |
| Geode Capital Management, LLC | 2,678,417 | $21.1M | 0.00% | +253,529+10.5% | Added |
| Morgan Stanley | 2,809,821 | $22.2M | 0.00% | +66,116+2.4% | Added |
| Vanguard Group Inc | 7,128,657 | $56.2M | 0.00% | +616,037+9.5% | Added |
| BlackRock, Inc. | 8,823,779 | $69.6M | 0.00% | +1,368,076+18.3% | Added |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −715,736−100.0% | Sold out |
| Capitolis Liquid Global Markets LLC | 0 | $0 | 0.00% | −680,600−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −471,791−100.0% | Sold out |
| Next Century Growth Investors LLC | 0 | $0 | 0.00% | −228,628−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −180,197−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −173,005−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −150,564−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −131,922−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −90,101−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −70,981−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −69,792−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −65,386−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −64,400−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −51,550−100.0% | Sold out |
| Harbour Capital Advisors, LLC | 0 | $0 | 0.00% | −40,315−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −31,944−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −31,740−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −30,368−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −28,891−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −27,190−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −17,544−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −14,018−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −11,563−100.0% | Sold out |
| IPG Investment Advisors LLC | 0 | $0 | 0.00% | −10,950−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −10,472−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| MCF Advisors LLC | 0 | $0 | 0.00% | −292−100.0% | Sold out |
| SWAN Capital LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Bryce Point Capital, LLC | – | – | – | – | Not filed |