SAN DIEGO, CA
AMERICAN ASSETS TRUST, INC.AAT— Latest position per institution from SEC 13F filings
15
Institutional holders
65.17M
Total shares held
1.18B
Estimated value
3.26M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
11.51M
Value
257.68M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
9.45M
Value
174.02M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
7.68M
Value
145.33M
Filed
Dec 31, 2025
AMERICAN ASSETS INC
CIK 885118
Shares
7.37M
Value
135.77M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
5.40M
Value
99.36M
Filed
Mar 31, 2026
SENVEST MANAGEMENT, LLC
CIK 1328785
Shares
3.58M
Value
65.85M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
2.84M
Value
52.36M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.12M
Value
39M
Filed
Mar 31, 2026
LSV ASSET MANAGEMENT
CIK 1050470
Shares
1.98M
Value
36.39K
Filed
Mar 31, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
1.97M
Value
38.82K
Filed
Jun 30, 2025
AMERICAN ASSETS INVESTMENT MANAGEMENT, LLC
CIK 1389256
Shares
1.48M
Value
27.20M
Filed
Mar 31, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
1.37M
Value
25.85M
Filed
Dec 31, 2025
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.34M
Value
24.61M
Filed
Mar 31, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
1.26M
Value
23.22M
Filed
Mar 31, 2026
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 1177719
Shares
1.25M
Value
33.07M
Filed
Dec 31, 2022
NUVEEN ASSET MANAGEMENT, LLC
CIK 1521019
Shares
976.82K
Value
25.65M
Filed
Dec 31, 2024
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
960.84K
Value
17.69M
Filed
Mar 31, 2026
AMERIPRISE FINANCIAL INC
CIK 820027
Shares
952.58K
Value
17.54M
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
883.48K
Value
16.26M
Filed
Mar 31, 2026
ALGERT GLOBAL LLC
CIK 1275218
Shares
812.90K
Value
14.97K
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 11.51M | 257.68M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 9.45M | 174.02M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 7.68M | 145.33M | Dec 31, 2025 |
| 4 | AMERICAN ASSETS INC | 885118 | 7.37M | 135.77M | Mar 31, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 5.40M | 99.36M | Mar 31, 2026 |
| 6 | SENVEST MANAGEMENT, LLC | 1328785 | 3.58M | 65.85M | Mar 31, 2026 |
| 7 | STATE STREET CORP | 93751 | 2.84M | 52.36M | Mar 31, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.12M | 39M | Mar 31, 2026 |
| 9 | LSV ASSET MANAGEMENT | 1050470 | 1.98M | 36.39K | Mar 31, 2026 |
| 10 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 1.97M | 38.82K | Jun 30, 2025 |
| 11 | AMERICAN ASSETS INVESTMENT MANAGEMENT, LLC | 1389256 | 1.48M | 27.20M | Mar 31, 2026 |
| 12 | JPMORGAN CHASE & CO | 19617 | 1.37M | 25.85M | Dec 31, 2025 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.34M | 24.61M | Mar 31, 2026 |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 1.26M | 23.22M | Mar 31, 2026 |
| 15 | WESTFIELD CAPITAL MANAGEMENT CO LP | 1177719 | 1.25M | 33.07M | Dec 31, 2022 |
| 16 | NUVEEN ASSET MANAGEMENT, LLC | 1521019 | 976.82K | 25.65M | Dec 31, 2024 |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 960.84K | 17.69M | Mar 31, 2026 |
| 18 | AMERIPRISE FINANCIAL INC | 820027 | 952.58K | 17.54M | Mar 31, 2026 |
| 19 | MORGAN STANLEY | 895421 | 883.48K | 16.26M | Mar 31, 2026 |
| 20 | ALGERT GLOBAL LLC | 1275218 | 812.90K | 14.97K | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.