AMPL Amplitude, Inc.
Amplitude, Inc. (AMPL) Institutional Ownership
What the institutions did with AMPL 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.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 11.1M | 13.8% |
| BlackRock, Inc. | 10.0M | 12.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.1M | 7.6% |
| FMR LLC | 6.0M | 7.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9M | 4.9% |
| SC US (TTGP), LTD. | 2.8M | 3.5% |
| STATE STREET CORP | 2.6M | 3.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5M | 3.1% |
| Trigran Investments, Inc. | 2.3M | 2.9% |
| BAILLIE GIFFORD & CO | 1.8M | 2.2% |
| Optimus Prime Fund Management Co., Ltd. | 1.6M | 2.0% |
| AQR CAPITAL MANAGEMENT LLC | 1.5M | 1.9% |
| Point72 Asset Management, L.P. | 1.4M | 1.7% |
| MORGAN STANLEY | 1.1M | 1.4% |
| GAGNON SECURITIES LLC | 1.1M | 1.3% |
| ROYCE & ASSOCIATES LP | 1.1M | 1.3% |
| Squarepoint Ops LLC | 1.0M | 1.3% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 959.6K | 1.2% |
| NORTHERN TRUST CORP | 924.4K | 1.1% |
| DIMENSIONAL FUND ADVISORS LP | 896.3K | 1.1% |
| CITADEL ADVISORS LLC | 872.9K | 1.1% |
| Meros Investment Management, LP | 828.0K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 803.6K | 1.0% |
| MONIMUS CAPITAL MANAGEMENT, LP | 783.8K | 1.0% |
| CenterBook Partners LP | 771.2K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Increased | 3.3M | 6.0M | +2.7M |
| Nuveen, LLC | Reduced | 2.6M | 265.3K | -2.3M |
| Trigran Investments, Inc. | Increased | 380.5K | 2.3M | +1.9M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 2.0M | 383.8K | -1.6M |
| ROYCE & ASSOCIATES LP | New | 0 | 1.1M | +1.1M |
| Point72 Asset Management, L.P. | Reduced | 2.4M | 1.4M | -1.0M |
| BAILLIE GIFFORD & CO | Reduced | 2.6M | 1.8M | -854.6K |
| CITADEL ADVISORS LLC | Increased | 36.2K | 872.9K | +836.7K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 1.7M | 959.6K | -771.8K |
| CenterBook Partners LP | Increased | 40.9K | 771.2K | +730.3K |
| ArrowMark Colorado Holdings LLC | Reduced | 1.3M | 657.0K | -599.0K |
| Qube Research & Technologies Ltd | Sold Out | 597.4K | 0 | -597.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 576.3K | 37.9K | -538.4K |
| MONIMUS CAPITAL MANAGEMENT, LP | Reduced | 1.3M | 783.8K | -480.5K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 454.1K | 14.4K | -439.7K |
| FIRST TRUST ADVISORS LP | Sold Out | 424.6K | 0 | -424.6K |
| Portolan Capital Management, LLC | Sold Out | 359.6K | 0 | -359.6K |
| LAZARD ASSET MANAGEMENT LLC | Increased | 16.0K | 355.1K | +339.1K |
| Meros Investment Management, LP | Reduced | 1.2M | 828.0K | -335.8K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 800.0K | 467.5K | -332.5K |
| BANK OF AMERICA CORP /DE/ | Reduced | 556.1K | 244.2K | -311.8K |
| Squarepoint Ops LLC | Increased | 712.4K | 1.0M | +309.3K |
| WESTERLY CAPITAL MANAGEMENT, LLC | Reduced | 500.0K | 200.0K | -300.0K |
| LIGHT STREET CAPITAL MANAGEMENT, LLC | Sold Out | 292.8K | 0 | -292.8K |
| GOLDMAN SACHS GROUP INC | Reduced | 598.3K | 318.4K | -279.8K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 617.7K | 896.3K | +278.5K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 691.7K | 416.2K | -275.4K |
| Numerai GP LLC | Increased | 20.0K | 295.1K | +275.2K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.2M | 1.5M | +273.3K |
| G2 Investment Partners Management LLC | Sold Out | 270.0K | 0 | -270.0K |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | Increased | 118.9K | 354.8K | +235.9K |
| MORGAN STANLEY | Increased | 920.5K | 1.1M | +229.2K |
| Trexquant Investment LP | Reduced | 266.1K | 58.4K | -207.8K |
| UBS Group AG | Increased | 122.0K | 321.9K | +199.9K |
| STATE STREET CORP | Increased | 2.4M | 2.6M | +175.4K |
| Palogic Value Management, L.P. | Increased | 65.0K | 240.2K | +175.2K |
| MARATHON CAPITAL MANAGEMENT | Sold Out | 171.6K | 0 | -171.6K |
| S SQUARED TECHNOLOGY, LLC | Increased | 150.4K | 315.4K | +165.0K |
| Corient Private Wealth LP | Increased | 16.5K | 178.6K | +162.1K |
| ALGERT GLOBAL LLC | Sold Out | 157.8K | 0 | -157.8K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 4.1M | 3.9M | -151.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.3M | 2.5M | +151.5K |
| Man Group plc | Reduced | 478.3K | 338.8K | -139.6K |
| BlackRock, Inc. | Reduced | 10.2M | 10.0M | -117.4K |
| SEI INVESTMENTS CO | Sold Out | 100.0K | 0 | -100.0K |
| Divisadero Street Capital Management, LP | New | 0 | 100.0K | +100.0K |
| WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD | Sold Out | 99.1K | 0 | -99.1K |
| Quantbot Technologies LP | New | 0 | 98.2K | +98.2K |
| XTX Topco Ltd | Increased | 15.6K | 110.3K | +94.7K |
| Walleye Capital LLC | Sold Out | 90.3K | 0 | -90.3K |
| PRELUDE CAPITAL MANAGEMENT, LLC | Increased | 43.1K | 131.6K | +88.5K |
| Diametric Capital, LP | New | 0 | 88.4K | +88.4K |
| ALLSTATE CORP | New | 0 | 83.2K | +83.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 6.2M | 6.1M | -81.2K |
| AdvisorShares Investments LLC | New | 0 | 72.3K | +72.3K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 733.7K | 803.6K | +69.9K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 11.2M | 11.1M | -68.6K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 86.0K | 18.6K | -67.4K |
| PDT Partners, LLC | Sold Out | 67.0K | 0 | -67.0K |
| ExodusPoint Capital Management, LP | New | 0 | 59.3K | +59.3K |
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.