AMPX Amprius Technologies, Inc.
Amprius Technologies, Inc. (AMPX) Institutional Ownership
What the institutions did with AMPX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 11.3M | 11.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.6M | 5.7% |
| MORGAN STANLEY | 5.1M | 5.2% |
| TWO SIGMA INVESTMENTS, LP | 4.3M | 4.4% |
| UBS Group AG | 4.1M | 4.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.5M | 3.6% |
| JANE STREET GROUP, LLC | 3.4M | 3.5% |
| STATE STREET CORP | 3.2M | 3.3% |
| GOLDMAN SACHS GROUP INC | 2.5M | 2.6% |
| JUPITER ASSET MANAGEMENT LTD | 2.1M | 2.2% |
| LMR Partners LLP | 1.8M | 1.8% |
| CITADEL ADVISORS LLC | 1.7M | 1.7% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.6M | 1.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | 1.5% |
| Hood River Capital Management LLC | 1.4M | 1.4% |
| RENAISSANCE TECHNOLOGIES LLC | 1.4M | 1.4% |
| Driehaus Capital Management LLC | 1.3M | 1.4% |
| Baird Financial Group, Inc. | 1.3M | 1.4% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.2M | 1.3% |
| NORTHERN TRUST CORP | 1.2M | 1.3% |
| MILLENNIUM MANAGEMENT LLC | 1.2M | 1.2% |
| DEUTSCHE BANK AG\ | 1.2M | 1.2% |
| BARCLAYS PLC | 1.2M | 1.2% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | 1.2% |
| Point72 Asset Management, L.P. | 1.1M | 1.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Driehaus Capital Management LLC | Reduced | 3.8M | 1.3M | -2.4M |
| JUPITER ASSET MANAGEMENT LTD | New | 0 | 2.1M | +2.1M |
| BlackRock, Inc. | Increased | 9.2M | 11.3M | +2.1M |
| MORGAN STANLEY | Increased | 3.2M | 5.1M | +1.9M |
| UBS Group AG | Increased | 2.3M | 4.1M | +1.8M |
| LMR Partners LLP | New | 0 | 1.8M | +1.8M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 2.0M | 506.3K | -1.5M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 1.2M | +1.2M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold Out | 1.2M | 0 | -1.2M |
| Point72 Asset Management, L.P. | Increased | 27.9K | 1.1M | +1.1M |
| MARSHALL WACE, LLP | Reduced | 1.2M | 131.2K | -1.1M |
| JPMORGAN CHASE & CO | Reduced | 1.2M | 123.4K | -1.1M |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 359.5K | 1.4M | +1.0M |
| Nearwater Capital Markets, Ltd | New | 0 | 1.0M | +1.0M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 89.2K | 1.1M | +1.0M |
| HRT FINANCIAL LP | Reduced | 1.0M | 150.2K | -852.5K |
| Shannon River Fund Management LLC | New | 0 | 838.9K | +838.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 3.5M | 4.3M | +812.6K |
| JANE STREET GROUP, LLC | Reduced | 4.2M | 3.4M | -759.6K |
| MYDA Advisors LLC | Sold Out | 735.0K | 0 | -735.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.8M | 3.5M | +706.1K |
| IMC-Chicago, LLC | Increased | 62.7K | 734.1K | +671.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 4.9M | 5.6M | +654.1K |
| FIRST TRUST ADVISORS LP | Increased | 394.6K | 1.0M | +642.8K |
| TimesSquare Capital Management, LLC | New | 0 | 642.0K | +642.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.