American Assets Trust, Inc.
US ˙ NYSE ˙ US0240131047

SecurityAAT / American Assets Trust, Inc.
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
D. E. Shaw & Co., Inc. closes position in AAT / American Assets Trust, Inc.

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 0 shares of American Assets Trust, Inc. (US:AAT) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,752 shares of American Assets Trust, Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMERICAN ASSETS TR COM 024013104 0 -100.00 0
2026-02-17 2025-12-31 13F AMERICAN ASSETS TR COM 024013104 10,752 -49,214 -82.07 204 -83.33 0.0001
2025-11-14 2025-09-30 13F AMERICAN ASSETS TR COM 024013104 59,966 -22,526 -27.31 1,219 -25.23 0.0005
2025-08-14 2025-06-30 13F AMERICAN ASSETS TR COM 024013104 82,492 -39,905 -32.60 1,629 -33.91 0.0012
2025-05-15 2025-03-31 13F AMERICAN ASSETS TR COM 024013104 122,397 122,397 2,465 0.0022
2024-08-14 2024-06-30 13F AMERICAN ASSETS TR COM 024013104 0 -23,448 -100.00 0 -100.00
2024-05-15 2024-03-31 13F AMERICAN ASSETS TR COM 024013104 23,448 -31,100 -57.01 514 -58.19 0.0004
2024-02-14 2023-12-31 13F AMERICAN ASSETS TR COM 024013104 54,548 -97,412 -64.10 1,228 -58.48 0.0011
2023-11-14 2023-09-30 13F AMERICAN ASSETS TR COM 024013104 151,960 40,905 36.83 2,956 38.60 0.0031
2023-08-14 2023-06-30 13F AMERICAN ASSETS TR COM 024013104 111,055 -23,386 -17.39 2,132 -14.69 0.0022
2023-05-15 2023-03-31 13F AMERICAN ASSETS TR COM 024013104 134,441 117,408 689.30 2,499 454.10 0.0027
2023-02-14 2022-12-31 13F AMERICAN ASSETS TR COM 024013104 17,033 17,033 451 0.0005
2022-11-14 2022-09-30 13F AMERICAN ASSETS TR COM 024013104 0 -30,625 -100.00 0 -100.00
2022-08-15 2022-06-30 13F AMERICAN ASSETS TR COM 024013104 30,625 -9,860 -24.35 910 -40.68 0.0011
2022-05-16 2022-03-31 13F AMERICAN ASSETS TR COM 024013104 40,485 6,444 18.93 1,534 20.03 0.0014
2022-02-14 2021-12-31 13F AMERICAN ASSETS TR COM 024013104 34,041 26,761 367.60 1,278 369.85 0.0011
2021-11-15 2021-09-30 13F AMERICAN ASSETS TR COM 024013104 7,280 7,280 272 0.0002
2021-08-16 2021-06-30 13F AMERICAN ASSETS TR COM 024013104 0 -17,001 -100.00 0 -100.00
2021-05-17 2021-03-31 13F AMERICAN ASSETS TR COM 024013104 17,001 -140,146 -89.18 552 -87.84 0.0005
2021-02-16 2020-12-31 13F AMERICAN ASSETS TR COM 024013104 157,147 -78,703 -33.37 4,538 -20.13 0.0041
2020-11-16 2020-09-30 13F AMERICAN ASSETS TR COM 024013104 235,850 44,666 23.36 5,682 6.74 0.0058
2020-08-14 2020-06-30 13F AMERICAN ASSETS TR COM 024013104 191,184 141,635 285.85 5,323 329.62 0.0063
2020-05-15 2020-03-31 13F AMERICAN ASSETS TR COM 024013104 49,549 49,549 1,239 0.0019
2019-08-14 2019-06-30 13F AMERICAN ASSETS TR COM 024013104 0 -5,875 -100.00 0 -100.00
2019-05-15 2019-03-31 13F AMERICAN ASSETS TR COM 024013104 5,875 -4,081 -40.99 269 -32.75 0.0003
2019-02-14 2018-12-31 13F AMERICAN ASSETS TR COM 024013104 9,956 -44,363 -81.67 400 -80.26 0.0006
2018-11-14 2018-09-30 13F AMERICAN ASSETS TR COM 024013104 54,319 3,262 6.39 2,026 3.68 0.0024
2018-08-14 2018-06-30 13F AMERICAN ASSETS TR COM 024013104 51,057 -65,682 -56.26 1,954 -49.90 0.0025
2018-05-15 2018-03-31 13F AMERICAN ASSETS TR COM 024013104 116,739 31,408 36.81 3,900 19.52 0.0053
2018-02-14 2017-12-31 13F AMERICAN ASSETS TR COM 024013104 85,331 -44,479 -34.26 3,263 -36.80 0.0045
2017-11-14 2017-09-30 13F AMERICAN ASSETS TR COM 024013104 129,810 -46,550 -26.39 5,163 -25.67 0.0079
2017-08-14 2017-06-30 13F AMERICAN ASSETS TR COM 024013104 176,360 -24,184 -12.06 6,946 -17.21 0.0115
2017-05-15 2017-03-31 13F AMERICAN ASSETS TR COM 024013104 200,544 42,880 27.20 8,390 23.53 0.0147
2017-02-14 2016-12-31 13F AMERICAN ASSETS TR COM 024013104 157,664 22,771 16.88 6,792 16.06 0.0115
2016-11-14 2016-09-30 13F AMERICAN ASSETS TR COM 024013104 134,893 -41,966 -23.73 5,852 -22.04 0.0103
2016-08-15 2016-06-30 13F AMERICAN ASSETS TR COM 024013104 176,859 37,318 26.74 7,506 34.76 0.0138
2016-05-16 2016-03-31 13F AMERICAN ASSETS TR COM 024013104 139,541 99,900 252.01 5,570 266.45 0.0100
2016-02-16 2015-12-31 13F AMERICAN ASSETS TR COM 024013104 39,641 23,216 141.35 1,520 126.53 0.0023
2015-11-16 2015-09-30 13F AMERICAN ASSETS TR COM 024013104 16,425 -14,027 -46.06 671 -43.80 0.0010
2015-08-14 2015-06-30 13F AMERICAN ASSETS TR COM 024013104 30,452 -19,932 -39.56 1,194 -45.25 0.0018
2015-05-15 2015-03-31 13F AMERICAN ASSETS TR COM 024013104 50,384 -23,752 -32.04 2,181 -26.09 0.0033
2015-02-17 2014-12-31 13F AMERICAN ASSETS TR COM 024013104 74,136 3,731 5.30 2,951 27.14 0.0038
2014-11-14 2014-09-30 13F AMERICAN ASSETS TR COM 024013104 70,405 60,151 586.61 2,321 555.65 0.0030
2014-08-14 2014-06-30 13F AMERICAN ASSETS TR COM 024013104 10,254 -22,370 -68.57 354 -67.82 0.0005
2014-05-15 2014-03-31 13F AMERICAN ASSETS TR COM 024013104 32,624 -27,420 -45.67 1,100 -41.71 0.0016
2014-02-14 2013-12-31 13F AMERICAN ASSETS TR COM 024013104 60,044 -55,692 -48.12 1,887 -46.56 0.0026
2013-11-20 2013-09-30 13F/A-1 AMERICAN ASSETS TR COM 024013104 115,736 -175,925 -60.32 3,531 -60.77 0.0056
2013-11-14 2013-09-30 13F AMERICAN ASSETS TR COM 024013104 115,736 3,531
2013-08-14 2013-06-30 13F AMERICAN ASSETS TR COM 024013104 291,661 291,661 9,001 0.0169
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.