AAT American Assets Trust, Inc.
American Assets Trust, Inc. (AAT) Institutional Ownership
What the institutions did with AAT 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 |
|---|---|---|
| BlackRock, Inc. | 9.2M | 16.0% |
| AMERICAN ASSETS INC | 7.4M | 12.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.5M | 9.5% |
| STATE STREET CORP | 2.8M | 4.9% |
| Senvest Management, LLC | 2.7M | 4.6% |
| LSV ASSET MANAGEMENT | 2.2M | 3.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.1M | 3.6% |
| American Assets Investment Management, LLC | 1.5M | 2.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4M | 2.4% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 2.2% |
| AMERIPRISE FINANCIAL INC | 1.0M | 1.8% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.0M | 1.8% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.0M | 1.8% |
| MORGAN STANLEY | 953.8K | 1.7% |
| PRIVATE MANAGEMENT GROUP INC | 800.0K | 1.4% |
| Invesco Ltd. | 709.1K | 1.2% |
| NORTHERN TRUST CORP | 665.6K | 1.2% |
| DIMENSIONAL FUND ADVISORS LP | 663.1K | 1.2% |
| TWO SIGMA INVESTMENTS, LP | 618.3K | 1.1% |
| ALGERT GLOBAL LLC | 589.2K | 1.0% |
| JPMORGAN CHASE & CO | 516.6K | 0.9% |
| Bank of New York Mellon Corp | 452.1K | 0.8% |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 435.7K | 0.8% |
| UBS Group AG | 418.6K | 0.7% |
| BESSEMER GROUP INC | 375.4K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Senvest Management, LLC | Reduced | 3.6M | 2.7M | -925.7K |
| JPMORGAN CHASE & CO | Reduced | 1.3M | 516.6K | -762.9K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 595.8K | 1.0M | +424.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 450.2K | 71.1K | -379.1K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Increased | 3.3K | 313.4K | +310.1K |
| BlackRock, Inc. | Reduced | 9.5M | 9.2M | -290.0K |
| WATERFALL ASSET MANAGEMENT, LLC | Sold Out | 279.3K | 0 | -279.3K |
| LSV ASSET MANAGEMENT | Increased | 2.0M | 2.2M | +235.6K |
| ALGERT GLOBAL LLC | Reduced | 812.9K | 589.2K | -223.7K |
| Qube Research & Technologies Ltd | Increased | 113.1K | 262.5K | +149.3K |
| JANE STREET GROUP, LLC | Reduced | 165.0K | 16.9K | -148.1K |
| CSM Advisors, LLC | Increased | 193.0K | 338.0K | +145.0K |
| FIRST TRUST ADVISORS LP | Reduced | 410.6K | 271.3K | -139.3K |
| BESSEMER GROUP INC | Increased | 256.2K | 375.4K | +119.2K |
| NORTHERN TRUST CORP | Reduced | 774.5K | 665.6K | -108.9K |
| Lighthouse Investment Partners, LLC | Increased | 31.4K | 136.6K | +105.2K |
| AMERIPRISE FINANCIAL INC | Increased | 952.6K | 1.0M | +96.6K |
| Invesco Ltd. | Reduced | 805.6K | 709.1K | -96.5K |
| Allianz Asset Management GmbH | Increased | 141.2K | 219.5K | +78.3K |
| HSBC HOLDINGS PLC | Increased | 95.8K | 173.0K | +77.2K |
| STRS OHIO | Reduced | 86.4K | 9.8K | -76.6K |
| TWO SIGMA INVESTMENTS, LP | Increased | 542.7K | 618.3K | +75.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 5.4M | 5.5M | +75.4K |
| CITADEL ADVISORS LLC | Increased | 221.9K | 296.7K | +74.8K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 960.8K | 1.0M | +71.3K |
| MORGAN STANLEY | Increased | 883.5K | 953.8K | +70.3K |
| Legal & General Group Plc | Reduced | 353.9K | 285.9K | -67.9K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 2.1M | 2.1M | -66.0K |
| FMR LLC | Reduced | 319.0K | 254.6K | -64.4K |
| Polymer Capital Management (US) LLC | New | 0 | 59.9K | +59.9K |
| RAYMOND JAMES FINANCIAL INC | Increased | 267.8K | 326.8K | +59.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.3M | 1.4M | +57.6K |
| New Age Alpha Advisors, LLC | Sold Out | 55.5K | 0 | -55.5K |
| PICTON MAHONEY ASSET MANAGEMENT | Increased | 43 | 51.6K | +51.5K |
| DARK FOREST CAPITAL MANAGEMENT LP | Sold Out | 51.2K | 0 | -51.2K |
| BARCLAYS PLC | Reduced | 59.2K | 8.8K | -50.3K |
| GOLDMAN SACHS GROUP INC | Reduced | 418.0K | 371.5K | -46.5K |
| STATE STREET CORP | Reduced | 2.8M | 2.8M | -46.4K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 616.9K | 663.1K | +46.2K |
| MARTINGALE ASSET MANAGEMENT L P | Increased | 119.4K | 163.3K | +43.9K |
| Argosy-Lionbridge Management, LLC | Increased | 209.9K | 247.5K | +37.6K |
| Quantinno Capital Management LP | Increased | 67.5K | 103.3K | +35.8K |
| Horizon Investments, LLC | New | 0 | 35.3K | +35.3K |
| PRUDENTIAL FINANCIAL INC | Reduced | 159.7K | 127.3K | -32.4K |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Reduced | 465.9K | 435.7K | -30.2K |
| Russell Investments Group, Ltd. | Increased | 25.2K | 55.3K | +30.1K |
| XTX Topco Ltd | Increased | 110.1K | 139.0K | +28.9K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Increased | 270.0K | 297.6K | +27.6K |
| FOX RUN MANAGEMENT, L.L.C. | Sold Out | 25.0K | 0 | -25.0K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | Increased | 205.4K | 228.9K | +23.5K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 23.0K | +23.0K |
| Handelsbanken Fonder AB | Sold Out | 23.0K | 0 | -23.0K |
| Tidal Investments LLC | Sold Out | 22.5K | 0 | -22.5K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 319.0K | 297.4K | -21.5K |
| ROYAL BANK OF CANADA | Increased | 59.5K | 80.9K | +21.4K |
| Squarepoint Ops LLC | New | 0 | 21.1K | +21.1K |
| Corient Private Wealth LP | New | 0 | 21.1K | +21.1K |
| Man Group plc | Increased | 152.8K | 173.7K | +21.0K |
| GSA CAPITAL PARTNERS LLP | Sold Out | 20.9K | 0 | -20.9K |
| SG Americas Securities, LLC | Sold Out | 20.7K | 0 | -20.7K |
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.