Amprius TechnologiesAMPX
13F holders, Q3 2025 (September 30)187holders +66
86new positions
18sold out
6famous investors
$10.52avg. 13F price*
At the end of Q3 2025, 187 institutions reported holding Amprius Technologies Inc. (AMPX) in their 13F filings, up 66 from Q2 2025. 86 opened new positions and 18 sold out. The largest holders were BlackRock, Inc. ($78.4M), Vanguard Group Inc. ($68.5M) and Driehaus Capital Management LLC ($32.5M). 6 famous investors held it, including Paul Tudor Jones (0.1% of Tudor Investment Corporation's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Amprius Technologies Inc.
- CUSIP
- 03214Q108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 86 | $146.2M |
| Exits | 18 | $7.4M |
All 13F filers, Q2 2025 → Q3 2025: 34,896,593 shares bought and 9,326,404 shares sold, net +25,570,189 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 187 holders
| BlackRock, Inc. | 0.00% | Add +41.5% | 7,455,703 | $78.4M |
| Vanguard Group Inc. | 0.00% | Add +37.0% | 6,512,620 | $68.5M |
| Driehaus Capital Management LLC | 0.23% | New | 3,090,669 | $32.5M |
| Morgan Stanley | 0.00% | Add +41.9% | 2,743,705 | $28.9M |
| Citadel Advisors | 0.02% | Add +796.4% | 2,506,799 | $26.4M |
| Geode Capital Management, LLC | 0.00% | Add +52.2% | 2,424,888 | $25.5M |
| Invesco Ltd. | 0.00% | Add +113.3% | 2,379,384 | $25.0M |
| State Street Corp. | 0.00% | Add +86.1% | 2,189,782 | $23.0M |
| Deutsche Bank AG | 0.01% | Add +3263.6% | 2,066,540 | $21.7M |
| BNP Paribas Financial Markets | 0.02% | Add +1117.9% | 1,943,905 | $20.4M |
| Voloridge Investment Management, LLC | 0.07% | New | 1,876,140 | $19.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +230.2% | 1,784,117 | $18.8M |
| Two Sigma Investments, LP | 0.03% | Add +24.2% | 1,753,577 | $18.4M |
| UBS Group AG | 0.00% | Add +111.6% | 1,548,008 | $16.3M |
| Stephens Investment Management Group LLC | 0.15% | New | 1,082,907 | $11.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +96.1% | 974,485 | $10.3M |
| Susquehanna International Group, LLP | 0.01% | Add +3.2% | 905,470 | $9.5M |
| Baird Financial Group, Inc. | 0.01% | Reduce -12.4% | 876,927 | $9.2M |
| Northern Trust Corp. | 0.00% | Add +28.6% | 852,279 | $9.0M |
| Two Sigma Advisers, LP | 0.02% | Add +101.8% | 812,000 | $8.5M |
| Stifel Financial Corp. | 0.01% | Reduce -11.2% | 795,791 | $8.4M |
| Tudor Investment Corporation | 0.05% | New | 715,736 | $7.5M |
| Essex Investment Management Co. LLC | 1.12% | Reduce -32.0% | 697,387 | $7.3M |
| Capitolis Liquid Global Markets LLC | 0.06% | New | 680,600 | $7.2M |
| Jane Street Group, LLC | 0.01% | Add +2926.9% | 676,664 | $7.1M |
| Millennium Management | 0.01% | Reduce -83.8% | 587,832 | $6.2M |
| Thames Capital Management LLC | 0.80% | New | 526,832 | $5.5M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Add +900.1% | 510,454 | $5.4M |
| Informed Momentum Co LLC | 0.58% | Add +131.3% | 488,530 | $5.1M |
| Artemis Investment Management LLP | 0.06% | New | 478,518 | $5.0M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 471,791 | $5.0M |
| Algert Global LLC | 0.07% | New | 383,019 | $4.0M |
| Polen Capital Management LLC | 0.01% | New | 339,427 | $3.6M |
| Verition Fund Management LLC | 0.02% | Add +82.1% | 323,444 | $3.4M |
| Russell Investments Group, Ltd. | 0.00% | Add +5146.3% | 305,073 | $3.2M |
| Oppenheimer & Co. Inc. | 0.04% | Reduce -33.4% | 299,339 | $3.1M |
| Bank of New York Mellon Corp | 0.00% | Add +50.7% | 291,904 | $3.1M |
| Bank of America Corp. | 0.00% | Add +129.1% | 290,441 | $3.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -71.7% | 287,716 | $3.0M |
| Janney Montgomery Scott LLC | 0.01% | Add +1672.4% | 283,460 | $3.0M |
| Lisanti Capital Growth, LLC | 0.68% | New | 265,725 | $2.8M |
| Legato Capital Management LLC | 0.29% | Reduce -9.3% | 251,268 | $2.6M |
| Trexquant Investment LP | 0.03% | New | 249,288 | $2.6M |
| Jump Financial, LLC | 0.03% | New | 242,700 | $2.6M |
| Nuveen, LLC | 0.00% | Add +11.6% | 242,272 | $2.5M |
| Raymond James Financial Inc. | 0.00% | Add +2116.8% | 239,968 | $2.5M |
| Next Century Growth Investors LLC | 0.18% | New | 228,628 | $2.4M |
| Jupiter Asset Management Ltd. | 0.02% | New | 199,385 | $2.1M |
| Engineers Gate Manager LP | 0.02% | New | 188,824 | $2.0M |
| Osterweis Capital Management Inc. | 0.12% | New | 187,445 | $2.0M |
| Quadrature Capital Ltd | 0.02% | New | 180,197 | $1.9M |
| Swiss National Bank | 0.00% | New | 175,300 | $1.8M |
| Cubist Systematic Strategies, LLC | 0.03% | Add +2.6% | 174,759 | $1.8M |
| XTX Topco Ltd | 0.09% | Add +1560.3% | 173,005 | $1.8M |
| Calamos Advisors LLC | 0.01% | New | 171,052 | $1.8M |
| LPL Financial LLC | 0.00% | Add +31.6% | 165,393 | $1.7M |
| Huntleigh Advisors, Inc. | 0.28% | Add +7.0% | 156,066 | $1.6M |
| HRT Financial LP | 0.01% | Reduce -30.2% | 150,564 | $1.6M |
| Alps Advisors Inc. | 0.01% | New | 148,780 | $1.6M |
| Barclays PLC | 0.00% | Reduce -20.4% | 133,334 | $1.4M |
| Quantbot Technologies LP | 0.04% | New | 131,922 | $1.4M |
| AQR Capital Management | 0.00% | Add +64.4% | 131,511 | $1.4M |
| Capital Fund Management S.A. | 0.01% | New | 131,411 | $1.4M |
| Prudential Financial Inc. | 0.00% | Add +1117.8% | 131,220 | $1.4M |
| Walleye Capital LLC | 0.01% | New | 130,775 | $1.4M |
| Rhumbline Advisers | 0.00% | Add +5.5% | 129,991 | $1.4M |
| Royal Bank of Canada | 0.00% | Add +712.1% | 127,386 | $1.3M |
| Alliancebernstein L.P. | 0.00% | Reduce -24.5% | 123,860 | $1.3M |
| Foundations Investment Advisors, LLC | 0.02% | Add +31.1% | 121,134 | $1.3M |
| SLT Holdings LLC | 0.85% | Add +31.1% | 120,300 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 116,484 | $1.2M |
| Gsa Capital Partners LLP | 0.09% | Add +38.4% | 101,053 | $1.1M |
| Citigroup Inc. | 0.00% | Add +181.6% | 96,730 | $1.0M |
| Federated Hermes, Inc. | 0.00% | New | 91,803 | $966K |
| Entropy Technologies, LP | 0.07% | New | 90,101 | $948K |
| Legal & General Group Plc | 0.00% | Add +741.5% | 87,377 | $919K |
| California State Teachers Retirement System | 0.00% | Add +1337.9% | 83,626 | $880K |
| Sei Investments Co. | 0.00% | Add +669.6% | 78,720 | $828K |
| Kingswood Wealth Advisors, LLC | 0.05% | Reduce -9.0% | 77,705 | $817K |
| Numerai GP LLC | 0.11% | New | 74,511 | $784K |
| Picton Mahoney Asset Management | 0.01% | New | 70,981 | $746K |
| Brevan Howard Capital Management LP | 0.01% | New | 69,792 | $734K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 65,386 | $688K |
| OMERS ADMINISTRATION Corp | 0.00% | Add +29.8% | 64,400 | $677K |
| Wells Fargo & Company | 0.00% | Add +16.0% | 58,760 | $618K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 58,433 | $615K |
| MetLife Investment Management, LLC | 0.00% | No change | 58,207 | $612K |
| HITE Hedge Asset Management LLC | 0.03% | Reduce -64.2% | 57,802 | $608K |
| Squarepoint Ops LLC | 0.00% | Reduce -11.9% | 57,605 | $606K |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 49,104 | $591K |
| Dynamic Technology Lab Private Ltd | 0.09% | Add +70.5% | 51,550 | $542K |
| B. Riley Wealth Advisors, Inc. | 0.03% | Add +0.4% | 50,700 | $533K |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -84.8% | 49,115 | $517K |
| Harbour Capital Advisors, LLC | 0.10% | New | 40,315 | $511K |
| Graham Capital Management, L.P. | 0.03% | Reduce -66.1% | 48,045 | $505K |
| Counterpoint Mutual Funds LLC | 0.04% | New | 47,639 | $501K |
| Inspire Investing, LLC | 0.04% | New | 43,830 | $461K |
| Bessemer Group Inc. | 0.00% | No change | 41,333 | $435K |
| Janus Henderson Group PLC | 0.00% | New | 39,053 | $411K |
| CoreCommodity Management, LLC | 0.07% | New | 38,770 | $408K |
"% of holder's portfolio" is AMPX's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.