American Assets Trust, Inc. (AAT) Ownership
AAT ownership summary
as of October 18, 2026- Institutions
- 119.1% of shares outstanding
- Insiders
- 1.80% of shares outstanding
- Shares outstanding
- 61.4M
- Float
- 51.0M shares available to trade
- Short interest
- 6.67% 1.8M shares short
- Days to cover
- 3.48 short interest up 8.1% vs prior month
- Institutions 119.06%
- Insiders 1.80%
AAT top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 14.92% | 9.2M | $195.0M | −290,044 (−3.1%) | June 30, 2026 |
| 2 | American Assets Inc | 12.01% | 7.4M | $156.9M | — | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 8.91% | 5.5M | $116.5M | +75,375 (+1.4%) | June 30, 2026 |
| 4 | State Street Corp | 4.56% | 2.8M | $59.5M | −46,415 (−1.6%) | June 30, 2026 |
| 5 | RIMA MANAGEMENT, LLC | 4.32% | 2.7M | $56.4M | −925,696 (−25.9%) | June 30, 2026 |
| 6 | LSV Asset Management | 3.60% | 2.2M | $47.1M | +235,573 (+11.9%) | June 30, 2026 |
| 7 | Vanguard Capital Management, LLC | 3.34% | 2.1M | $43.7M | −65,974 (−3.1%) | June 30, 2026 |
| 8 | American Assets Investment Management | 2.41% | 1.5M | $31.4M | — | June 30, 2026 |
| 9 | Geode Capital Management, LLC | 2.27% | 1.4M | $29.7M | +57,645 (+4.3%) | June 30, 2026 |
| 10 | Charles Schwab Investment Management Inc | 2.08% | 1.3M | $27.2M | +18,598 (+1.5%) | June 30, 2026 |
| 11 | Ameriprise Financial Inc | 1.71% | 1.0M | $22.3M | +96,642 (+10.1%) | June 30, 2026 |
| 12 | Arrowstreet Capital Limited Partnership | 1.68% | 1.0M | $22.0M | +71,332 (+7.4%) | June 30, 2026 |
| 13 | Fuller & Thaler Asset Management Inc | 1.66% | 1.0M | $21.7M | +424,031 (+71.2%) | June 30, 2026 |
| 14 | Morgan Stanley - Brokerage Accounts | 1.55% | 954K | $20.3M | +70,303 (+8.0%) | June 30, 2026 |
| 15 | Private Management Group Inc | 1.30% | 800K | $17.0M | −6,565 (−0.8%) | June 30, 2026 |
| 16 | Amvescap Plc. | 1.15% | 709K | $15.1M | −96,478 (−12.0%) | June 30, 2026 |
| 17 | Northern Trust Corp | 1.08% | 666K | $14.2M | −108,924 (−14.1%) | June 30, 2026 |
| 18 | Dimensional Fund Advisors, Inc. | 1.08% | 663K | $14.1M | +46,209 (+7.5%) | June 30, 2026 |
| 19 | Two Sigma Investments LLC | 1.01% | 618K | $13.2M | +75,581 (+13.9%) | June 30, 2026 |
| 20 | Algert Global LLC | 0.96% | 589K | $12.5M | −223,668 (−27.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 1.2M shares and 8 cut 1.8M.
AAT top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 4.59% | 2.8M | $60.0M | +729 (+0.0%) | September 30, 2026 |
| 2 | Vanguard Real Estate Index Investor | 2.91% | 1.8M | $38.1M | −79,751 (−4.3%) | August 31, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 2.40% | 1.5M | $31.3M | −5,859 (−0.4%) | August 31, 2026 |
| 4 | iShares Russell 2000 ETF | 2.14% | 1.3M | $28.0M | −15,168 (−1.1%) | September 30, 2026 |
| 5 | Vanguard Small Cap Index | 1.72% | 1.1M | $22.5M | +1,066 (+0.1%) | August 31, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.10% | 673K | $14.3M | +501 (+0.1%) | August 31, 2026 |
| 7 | Columbia Small Cap Value Discv A | 1.07% | 660K | $14.0M | +4,200 (+0.6%) | August 31, 2026 |
| 8 | Fidelity Small Cap Index | 0.91% | 558K | $11.9M | +5,006 (+0.9%) | July 31, 2026 |
| 9 | FullerThaler Behvrl S-M Cor Eq Instl | 0.80% | 489K | $10.4M | +20,100 (+4.3%) | August 31, 2026 |
| 10 | iShares Russell 2000 Value ETF | 0.77% | 471K | $10.0M | +714 (+0.2%) | September 30, 2026 |
| 11 | Invesco KBW Premium Yield Eq REIT ETF | 0.74% | 452K | $9.6M | −1,512 (−0.3%) | September 30, 2026 |
| 12 | State Street SPDR Port S&P 600 Sm CpETF | 0.70% | 428K | $9.1M | — | September 30, 2026 |
| 13 | Vanguard Strategic Small-Cap Equity Inv | 0.68% | 416K | $8.8M | — | June 30, 2026 |
| 14 | iShares S&P Small-Cap 600 Value ETF | 0.65% | 400K | $8.5M | — | September 30, 2026 |
| 15 | Schwab US REIT ETF™ | 0.61% | 372K | $7.9M | +190 (+0.1%) | September 30, 2026 |
| 16 | Vanguard Tax-Managed Small Cap Adm | 0.55% | 335K | $7.1M | — | August 31, 2026 |
| 17 | Bridge Builder Small/Mid Cap Growth | 0.52% | 322K | $6.9M | +322,100 (0.0%) | September 30, 2026 |
| 18 | Vanguard Real Estate II Index | 0.52% | 317K | $6.7M | −10,932 (−3.3%) | August 31, 2026 |
| 19 | Vanguard Russell 2000 ETF | 0.47% | 286K | $6.1M | +6,787 (+2.4%) | August 31, 2026 |
| 20 | Fidelity Enhanced Small Cap Core ETF | 0.43% | 265K | $5.6M | +555 (+0.2%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AAT insider transactions
latest 7| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2024-12-03 | Adam Wyll | Sell | $28.22 | 30,238 | $853,316 |
| 2023-05-12 | Ernest S Rady | Buy | $18.76 | 100,000 | $1.9M |
| 2023-05-10 | Ernest S Rady | Buy | $18.84 | 42,140 | $793,918 |
| 2023-05-08 | Ernest S Rady | Buy | $18.93 | 100,000 | $1.9M |
| 2023-05-05 | Ernest S Rady | Buy | $18.89 | 100,000 | $1.9M |
| 2023-05-03 | Ernest S Rady | Buy | $17.66 | 100,000 | $1.8M |
| 2023-05-01 | Ernest S Rady | Buy | $17.99 | 120,000 | $2.2M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
AAT shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AAT
Institutional investors own 119.1% of American Assets's shares and insiders 1.80%. The largest holder is BlackRock Inc with 14.92% of the shares (9.2M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 8 reduced their stake in the latest filings. Short interest is 6.67% of the float, or 3.48 days of average trading volume. The share count rose 25.7% since 2014.
Related: AAT analyst forecast, AAT key metrics, AAT dividend history. See the AAT stock overview for the latest quote and news.
AAT ownership FAQ
Who owns the most American Assets stock?
The largest shareholders of American Assets are BlackRock Inc (14.92%), American Assets Inc (12.01%), Vanguard Portfolio Management, LLC (8.91%), State Street Corp (4.56%), RIMA MANAGEMENT, LLC (4.32%).
What percentage of American Assets is owned by institutions?
Institutions hold 119.1% of American Assets's shares outstanding; insiders hold 1.80%.
Which funds own American Assets?
The largest fund holders of American Assets are iShares Core S&P Small-Cap ETF (4.59%), Vanguard Real Estate Index Investor (2.91%), Vanguard MStar Total Stk Mkt Idx Invest (2.40%), iShares Russell 2000 ETF (2.14%), Vanguard Small Cap Index (1.72%).
What is American Assets's short interest?
1.8M shares of American Assets were sold short, 6.67% of the float; at the average daily volume it would take 3.48 days to cover.
Are insiders buying or selling American Assets?
Of the latest 7 reported insider transactions in American Assets (since May 1, 2023), 6 were purchases and 1 were sales.
How many shares of American Assets are outstanding?
American Assets has 61.4M shares outstanding, of which 51.0M are in the public float.