Amprius TechnologiesAMPX
13F holders, Q1 2026 (March 31)245holders +39
73new positions
34sold out
8famous investors
$16.82avg. 13F price*
At the end of Q1 2026, 245 institutions reported holding Amprius Technologies Inc. (AMPX) in their 13F filings, up 39 from Q4 2025. 73 opened new positions and 34 sold out. The largest holders were BlackRock, Inc. ($155.5M), Vanguard Capital Management LLC ($82.8M) and Jane Street Group, LLC ($70.1M). 8 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Amprius Technologies Inc.
- CUSIP
- 03214Q108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 73 | $199.5M |
| Exits | 34 | $34.0M |
All 13F filers, Q4 2025 → Q1 2026: 30,811,889 shares bought and 12,044,289 shares sold, net +18,767,600 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 245 holders
| BlackRock, Inc. | 0.00% | Add +4.5% | 9,225,611 | $155.5M |
| Vanguard Capital Management LLC | 0.00% | — | 4,908,875 | $82.8M |
| Jane Street Group, LLC | 0.08% | Add +1849.5% | 4,160,656 | $70.1M |
| Driehaus Capital Management LLC | 0.47% | Add +58.5% | 3,794,178 | $64.0M |
| Two Sigma Investments, LP | 0.05% | Add +144.0% | 3,506,075 | $59.1M |
| Morgan Stanley | 0.00% | Add +12.5% | 3,162,167 | $53.3M |
| Geode Capital Management, LLC | 0.00% | Add +5.1% | 2,814,530 | $47.5M |
| State Street Corp. | 0.00% | Add +6.2% | 2,712,630 | $45.7M |
| UBS Group AG | 0.01% | Add +10.1% | 2,311,554 | $39.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +1.4% | 2,226,181 | $37.5M |
| Massachusetts Financial Services Co. | 0.01% | New | 2,024,760 | $34.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +2254.8% | 1,897,420 | $32.0M |
| Baird Financial Group, Inc. | 0.04% | Add +104.9% | 1,585,098 | $26.7M |
| Citadel Advisors | 0.02% | Add +216.3% | 1,438,660 | $24.3M |
| Marshall Wace, LLP | 0.02% | New | 1,227,599 | $20.7M |
| Qube Research & Technologies Ltd | 0.03% | Add +40.4% | 1,227,570 | $20.7M |
| William Blair Investment Management, LLC | 0.07% | Add +18.8% | 1,170,131 | $19.7M |
| D. E. Shaw & Co. | 0.02% | New | 1,075,386 | $18.1M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,073,396 | $18.1M |
| JPMorgan Chase & Co. | 0.00% | Add +1357.4% | 1,216,185 | $17.9M |
| Barclays PLC | 0.01% | Add +124.5% | 1,054,927 | $17.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.2% | 1,039,394 | $17.5M |
| Millennium Management | 0.01% | Reduce -4.6% | 1,035,238 | $17.5M |
| Northern Trust Corp. | 0.00% | Add +6.2% | 1,022,625 | $17.2M |
| HRT Financial LP | 0.04% | New | 1,002,658 | $16.9M |
| Hood River Capital Management LLC | 0.16% | Add +17.2% | 949,147 | $16.0M |
| Stephens Investment Management Group LLC | 0.21% | Reduce -38.0% | 893,108 | $15.1M |
| Deutsche Bank AG | 0.00% | Reduce -55.2% | 875,031 | $14.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 872,582 | $14.7M |
| Wolf Hill Capital Management, LP | 1.92% | New | 802,925 | $13.5M |
| MYDA Advisors LLC | 2.94% | New | 735,000 | $12.4M |
| Stifel Financial Corp. | 0.01% | Reduce -5.0% | 733,172 | $12.4M |
| Trexquant Investment LP | 0.09% | Add +2209.8% | 716,257 | $12.1M |
| Science & Technology Partners, L.P. | 2.80% | New | 635,106 | $10.7M |
| Oberweis Asset Management Inc./ | 0.29% | New | 585,000 | $9.9M |
| Sei Investments Co. | 0.01% | Add +34.1% | 579,161 | $9.8M |
| Russell Investments Group, Ltd. | 0.01% | Add +131.2% | 543,463 | $9.2M |
| Voloridge Investment Management, LLC | 0.04% | Reduce -66.8% | 531,998 | $9.0M |
| Thames Capital Management LLC | 1.59% | No change | 526,832 | $8.9M |
| Invesco Ltd. | 0.00% | Reduce -62.0% | 498,804 | $8.4M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -0.3% | 489,652 | $8.3M |
| Essex Investment Management Co. LLC | 1.19% | Reduce -13.8% | 445,441 | $7.5M |
| SG Americas Securities, LLC | 0.01% | Add +65.7% | 423,037 | $7.1M |
| Polen Capital Management LLC | 0.05% | Add +46.4% | 422,145 | $7.1M |
| Tudor Investment Corporation | 0.04% | New | 419,661 | $7.1M |
| Oppenheimer & Co. Inc. | 0.08% | Reduce -6.7% | 412,509 | $7.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Add +700.2% | 431,398 | $6.7M |
| First Trust Advisors LP | 0.00% | Add +1105.0% | 394,569 | $6.7M |
| Palisades Investment Partners, LLC | 2.44% | New | 369,476 | $6.2M |
| Calamos Advisors LLC | 0.03% | Add +206.2% | 364,506 | $6.1M |
| Renaissance Technologies | 0.01% | Add +218.7% | 359,525 | $6.1M |
| Lisanti Capital Growth, LLC | 1.50% | Add +77.2% | 352,375 | $5.9M |
| Public Sector Pension Investment Board | 0.02% | New | 332,000 | $5.6M |
| Silvercrest Asset Management Group LLC | 0.04% | Reduce -11.0% | 319,879 | $5.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.5% | 298,865 | $5.0M |
| Voleon Capital Management LP | 0.11% | Add +56.1% | 298,354 | $5.0M |
| BNP Paribas Financial Markets | 0.00% | Reduce -59.5% | 286,546 | $4.8M |
| Aquatic Capital Management LLC | 0.14% | Add +978.1% | 282,663 | $4.8M |
| Bank of America Corp. | 0.00% | Reduce -11.5% | 265,418 | $4.5M |
| Informed Momentum Co LLC | 0.51% | Add +10.7% | 262,036 | $4.4M |
| Nuveen, LLC | 0.00% | Add +4.6% | 243,895 | $4.1M |
| Zevenbergen Capital Investments LLC | 0.11% | New | 236,875 | $4.0M |
| Swiss National Bank | 0.00% | Add +4.7% | 232,400 | $3.9M |
| Squarepoint Ops LLC | 0.01% | Add +6.5% | 232,109 | $3.9M |
| Legato Capital Management LLC | 0.35% | Add +11.7% | 228,498 | $3.9M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 227,132 | $3.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +19.3% | 225,224 | $3.8M |
| Algert Global LLC | 0.05% | Add +62.3% | 215,315 | $3.6M |
| Sender Co & Partners, Inc. | 2.21% | New | 179,243 | $3.0M |
| Federated Hermes, Inc. | 0.00% | Reduce -40.8% | 169,753 | $2.9M |
| Osaic Holdings, Inc. | 0.00% | Add +1854.9% | 169,492 | $2.9M |
| Alps Advisors Inc. | 0.01% | Add +13.8% | 167,420 | $2.8M |
| New York State Common Retirement Fund | 0.00% | Add +458.9% | 165,627 | $2.8M |
| Amundi | 0.00% | Add +17.3% | 164,589 | $2.8M |
| Y-Intercept (Hong Kong) Ltd | 0.05% | New | 164,224 | $2.8M |
| Huntleigh Advisors, Inc. | 0.47% | Add +1.4% | 162,905 | $2.7M |
| California State Teachers Retirement System | 0.00% | Add +48.1% | 159,903 | $2.7M |
| DNB Asset Management AS | 0.01% | New | 153,032 | $2.6M |
| Hussman Strategic Advisors, Inc. | 0.54% | Reduce -30.0% | 147,000 | $2.5M |
| Janney Montgomery Scott LLC | 0.01% | Reduce -13.8% | 145,246 | $2.4M |
| AQR Capital Management | 0.00% | Add +1.2% | 137,726 | $2.3M |
| Schonfeld Strategic Advisors LLC | 0.02% | New | 135,774 | $2.3M |
| LPL Financial LLC | 0.00% | Add +17.5% | 134,781 | $2.3M |
| Rhumbline Advisers | 0.00% | Add +5.5% | 132,093 | $2.2M |
| Blair William & Co. | 0.01% | Add +215.4% | 126,622 | $2.1M |
| Ardsley Advisory Partners LP | 0.32% | New | 125,000 | $2.1M |
| Raymond James Financial Inc. | 0.00% | Reduce -45.5% | 122,294 | $2.1M |
| CenterBook Partners LP | 0.11% | New | 118,257 | $2.0M |
| Apis Capital Advisors, LLC | 0.28% | New | 108,000 | $1.8M |
| Royal Bank of Canada | 0.00% | Add +10.9% | 101,914 | $1.7M |
| Foundations Investment Advisors, LLC | 0.02% | Reduce -17.9% | 101,893 | $1.7M |
| SLT Holdings LLC | 1.21% | Reduce -18.1% | 101,050 | $1.7M |
| XTX Topco Ltd | 0.03% | New | 99,351 | $1.7M |
| Quantbot Technologies LP | 0.07% | New | 96,604 | $1.6M |
| Franklin Resources Inc. | 0.00% | Add +19.2% | 93,996 | $1.6M |
| Wells Fargo & Company | 0.00% | Reduce -35.4% | 91,913 | $1.5M |
| Susquehanna International Group, LLP | 0.00% | Reduce -94.7% | 89,170 | $1.5M |
| Legal & General Group Plc | 0.00% | Reduce -15.0% | 86,857 | $1.5M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 83,405 | $1.4M |
| Alberta Investment Management Corp | 0.01% | Reduce -35.4% | 82,000 | $1.4M |
"% of holder's portfolio" is AMPX's weight in each manager's 13F, not the share of Amprius Technologies Inc. the manager owns.