Amprius Technologies, Inc.: which funds bought and sold
Institutions that bought and sold Amprius Technologies shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 169 institutions that filed 13F reports for both quarters added to or opened positions in Amprius Technologies, and 108 cut or closed them. Together they added a net 12.8M shares, +15.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.1M shares (+4.5%); index fund managers were net buyers of 4.9M shares (+20.4%). 60 opened a new position and 45 sold out entirely.
Bought, Q2 2026 169 institutions, 60 of them new holders Sold, Q2 2026 108 institutions, 45 of them sold out
Net change, all compared +12.8M shares (+15.2%)
Net change, active managers +1.1M shares (+4.5%), 27 bought, 24 sold
Buyers versus sellers
169 bought 23 108 sold
Active managers and hedge funds 27 bought · 24 sold · +1.1M
Index fund managers 10 bought · 1 sold · +4.9M
Other institutions 132 bought · 83 sold · +6.8M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jupiter Asset Management Ltd Active manager | +2.1M New position | 2.1M | $29.6M |
| Blackrock, Inc. Index funds | +2.1M +22.9% | 11.3M | $157M |
| Morgan Stanley | +1.9M +61.5% | 5.1M | $70.8M |
| UBS Group AG | +1.8M +76.2% | 4.1M | $56.4M |
| LMR Partners LLP Hedge fund | +1.8M New position | 1.8M | $24.3M |
| Healthcare Of Ontario Pension Plan Trust Fund | +1.2M New position | 1.2M | $17.3M |
| Point72 Asset Management, L.P. Hedge fund | +1.1M +3982.3% | 1.1M | $15.8M |
| Renaissance Technologies LLC Hedge fund | +1.0M +291.9% | 1.4M | $19.5M |
| Nearwater Capital Markets, Ltd | +1.0M New position | 1.0M | $14.3M |
| Susquehanna International Group, LLP | +1.0M +1133.9% | 1.1M | $15.2M |
| Shannon River Fund Management LLC Hedge fund | +839K New position | 839K | $11.6M |
| Two Sigma Investments, LP Hedge fund | +813K +23.2% | 4.3M | $59.9M |
| Geode Capital Management, LLC Index funds | +706K +25.1% | 3.5M | $48.8M |
| Imc-Chicago, LLC | +671K +1071.2% | 734K | $10.2M |
| Vanguard Capital Management LLC Index funds | +654K +13.3% | 5.6M | $77.1M |
| First Trust Advisors LP | +643K +162.9% | 1.0M | $14.4M |
| Timessquare Capital Management, LLC | +642K New position | 642K | $8.9M |
| State Street Corp Index funds | +528K +19.5% | 3.2M | $44.9M |
| Hood River Capital Management LLC | +463K +48.8% | 1.4M | $19.6M |
| Hightower Advisors, LLC | +405K +3681.3% | 416K | $5.8M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jupiter Asset Management Ltd Active manager | +2.1M New position | 2.1M | $29.6M |
| LMR Partners LLP Hedge fund | +1.8M New position | 1.8M | $24.3M |
| Point72 Asset Management, L.P. Hedge fund | +1.1M +3982.3% | 1.1M | $15.8M |
| Renaissance Technologies LLC Hedge fund | +1.0M +291.9% | 1.4M | $19.5M |
| Shannon River Fund Management LLC Hedge fund | +839K New position | 839K | $11.6M |
| Two Sigma Investments, LP Hedge fund | +813K +23.2% | 4.3M | $59.9M |
| Trexquant Investment LP Hedge fund | +381K +53.2% | 1.1M | $15.2M |
| Wellington Management Group LLP Active manager | +343K New position | 343K | $4.8M |
| Tudor Investment Corp Et Al Hedge fund | +328K +78.1% | 747K | $10.4M |
| Federated Hermes, Inc. Active manager | +259K +152.5% | 429K | $5.9M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Driehaus Capital Management LLC Active manager | −2.4M −64.5% | 1.3M | $18.6M |
| Massachusetts Financial Services Co Active manager | −1.5M −75.0% | 506K | $7M |
| William Blair Investment Management, LLC Active manager | −1.2M Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −1.1M −89.3% | 131K | $1.8M |
| Jpmorgan Chase & Co | −1.1M −89.9% | 123K | $1.7M |
| HRT Financial LP | −1.0M Sold out | 0 | — |
| Jane Street Group, LLC | −760K −18.3% | 3.4M | $47.1M |
| Myda Advisors LLC | −735K Sold out | 0 | — |
| Science & Technology Partners, L.P. | −635K Sold out | 0 | — |
| Voloridge Investment Management, LLC Hedge fund | −532K Sold out | 0 | — |
| Thames Capital Management LLC | −527K Sold out | 0 | — |
| D. E. Shaw & Co., Inc. Hedge fund | −404K −37.5% | 672K | $9.3M |
| Russell Investments Group, Ltd. | −341K −62.7% | 203K | $2.8M |
| Public Sector Pension Investment Board | −332K Sold out | 0 | — |
| Wolf Hill Capital Management, LP Hedge fund | −276K −34.3% | 527K | $7.3M |
| Calamos Advisors LLC Active manager | −270K −74.2% | 94K | $1.3M |
| Informed Momentum Co LLC | −262K Sold out | 0 | — |
| Price T Rowe Associates Inc Active manager | −262K −13.8% | 1.6M | $22.7M |
| Baird Financial Group, Inc. | −260K −16.4% | 1.3M | $18.4M |
| Lisanti Capital Growth, LLC | −239K −67.7% | 114K | $1.6M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Driehaus Capital Management LLC Active manager | −2.4M −64.5% | 1.3M | $18.6M |
| Massachusetts Financial Services Co Active manager | −1.5M −75.0% | 506K | $7M |
| William Blair Investment Management, LLC Active manager | −1.2M Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −1.1M −89.3% | 131K | $1.8M |
| Voloridge Investment Management, LLC Hedge fund | −532K Sold out | 0 | — |
| D. E. Shaw & Co., Inc. Hedge fund | −404K −37.5% | 672K | $9.3M |
| Wolf Hill Capital Management, LP Hedge fund | −276K −34.3% | 527K | $7.3M |
| Calamos Advisors LLC Active manager | −270K −74.2% | 94K | $1.3M |
| Price T Rowe Associates Inc Active manager | −262K −13.8% | 1.6M | $22.7M |
| Arrowstreet Capital, Limited Partnership Hedge fund | −227K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Jupiter Asset Management LtdActive manager | 2.1M | $29.6M |
| LMR Partners LLPHedge fund | 1.8M | $24.3M |
| Healthcare Of Ontario Pension Plan Trust Fund | 1.2M | $17.3M |
| Nearwater Capital Markets, Ltd | 1.0M | $14.3M |
| Shannon River Fund Management LLCHedge fund | 839K | $11.6M |
| Timessquare Capital Management, LLC | 642K | $8.9M |
| Wellington Management Group LLPActive manager | 343K | $4.8M |
| Cantor Fitzgerald, L. P. | 296K | $4.1M |
| Credit Agricole S A | 265K | $3.7M |
| HSBC Holdings PLC | 260K | $3.6M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| William Blair Investment Management, LLCActive manager | 1.2M | $19.7M |
| HRT Financial LP | 1.0M | $16.9M |
| Myda Advisors LLC | 735K | $12.4M |
| Science & Technology Partners, L.P. | 635K | $10.7M |
| Voloridge Investment Management, LLCHedge fund | 532K | $9M |
| Thames Capital Management LLC | 527K | $8.9M |
| Public Sector Pension Investment Board | 332K | $5.6M |
| Informed Momentum Co LLC | 262K | $4.4M |
| Arrowstreet Capital, Limited PartnershipHedge fund | 227K | $3.8M |
| Y-Intercept (Hong Kong) Ltd | 164K | $2.8M |
Who holds the shares
- Institutions reporting
- 258
- Ten largest holders
- 46.7% of 13F-reported shares
- Index fund managers
- 29.6% of 13F-reported shares
- Active managers and hedge funds
- 26.8% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 27 | 24 | 10 | 9 | +1.1M | +4.5% |
| Index fund managers | 10 | 1 | 0 | 0 | +4.9M | +20.4% |
| Other institutions | 132 | 83 | 50 | 36 | +6.8M | +19.1% |
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