American Assets Trust, Inc.
US ˙ NYSE ˙ US0240131047

SecurityAAT / American Assets Trust, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership55,907 shares
Latest Disclosed Value $ 1,058,316
Sei Investments Co reports 11.13% increase in ownership of AAT / American Assets Trust, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 55,907 shares of American Assets Trust, Inc. (US:AAT) valued at $1,058,320 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 50,306 shares of American Assets Trust, Inc.. This represents a change in shares of 11.13% during the quarter. The current value of the position is $1,322,760 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)
2026-02-13 2025-12-31 13F AMERICAN ASSETS TR COM 024013104 55,907 5,601 11.13 1,058 3.52 0.0010
2025-11-13 2025-09-30 13F AMERICAN ASSETS TR COM 024013104 50,306 4,726 10.37 1,022 13.56 0.0011
2025-08-14 2025-06-30 13F AMERICAN ASSETS TR COM 024013104 45,580 17,296 61.15 900 58.17 0.0010
2025-05-14 2025-03-31 13F/A-1 AMERICAN ASSETS TR COM 024013104 28,284 13,955 97.39 570 51.33 0.0007
2025-05-13 2025-03-31 13F AMERICAN ASSETS TR COM 024013104 14,329 0 374 0.0004
2025-02-11 2024-12-31 13F AMERICAN ASSETS TR COM 024013104 14,329 -3,788 -20.91 376 -22.31 0.0005
2024-11-12 2024-09-30 13F AMERICAN ASSETS TR COM 024013104 18,117 -12,313 -40.46 484 -28.93 0.0006
2024-08-13 2024-06-30 13F AMERICAN ASSETS TR COM 024013104 30,430 -392 -1.27 681 0.89 0.0010
2024-05-07 2024-03-31 13F AMERICAN ASSETS TR COM 024013104 30,822 -18,009 -36.88 675 -38.58 0.0010
2024-02-14 2023-12-31 13F AMERICAN ASSETS TR COM 024013104 48,831 1,166 2.45 1,099 18.55 0.0018
2023-11-14 2023-09-30 13F AMERICAN ASSETS TR COM 024013104 47,665 2,006 4.39 927 5.82 0.0017
2023-08-11 2023-06-30 13F AMERICAN ASSETS TR COM 024013104 45,659 15,221 50.01 877 55.04 0.0015
2023-05-12 2023-03-31 13F AMERICAN ASSETS TR COM 024013104 30,438 -14,334 -32.02 566 -52.36 0.0011
2023-02-10 2022-12-31 13F AMERICAN ASSETS TR COM 024013104 44,772 12,383 38.23 1,186 42.38 0.0026
2022-11-14 2022-09-30 13F AMERICAN ASSETS TR COM 024013104 32,389 -4,441 -12.06 833 -23.86 0.0019
2022-08-15 2022-06-30 13F AMERICAN ASSETS TR COM 024013104 36,830 18,517 101.11 1,094 57.41 0.0024
2022-05-13 2022-03-31 13F AMERICAN ASSETS TR COM 024013104 18,313 9 0.05 695 0.87 0.0014
2022-02-14 2021-12-31 13F AMERICAN ASSETS TR COM 024013104 18,304 62 0.34 689 0.73 0.0013
2021-11-12 2021-09-30 13F AMERICAN ASSETS TR COM 024013104 18,242 18,242 684 0.0014
2020-12-04 2020-09-30 13F/A-1 AMERICAN ASSETS TR COM 024013104 0 -244,748 -100.00 0 -100.00
2020-08-17 2020-06-30 13F/A-1 AMERICAN ASSETS TR COM 024013104 244,748 -13,574 -5.25 6,799 5.28 0.0211
2020-08-11 2020-06-30 13F AMERICAN ASSETS TR COM 024013104 288,580 30,258 13,212 35,838.2533
2020-05-14 2020-03-31 13F AMERICAN ASSETS TR COM 024013104 258,322 -29,248 -10.17 6,458 -51.07 0.0237
2020-02-06 2019-12-31 13F AMERICAN ASSETS TR COM 024013104 287,570 -1,808 -0.62 13,199 -2.42 0.0394
2019-11-12 2019-09-30 13F AMERICAN ASSETS TR COM 024013104 289,378 13,733 4.98 13,526 4.14 0.0346
2019-08-14 2019-06-30 13F AMERICAN ASSETS TR COM 024013104 275,645 15,854 6.10 12,988 9.01 0.0424
2019-05-15 2019-03-31 13F AMERICAN ASSETS TR COM 024013104 259,791 -33,809 -11.52 11,914 8.82 0.0400
2019-02-13 2018-12-31 13F AMERICAN ASSETS TR COM 024013104 293,600 0 0.00 10,948 0.00 0.0390
2018-11-08 2018-09-30 13F AMERICAN ASSETS TR COM 024013104 293,600 -4,798 -1.61 10,948 -4.18 0.0397
2018-08-03 2018-06-30 13F AMERICAN ASSETS TR COM 024013104 298,398 297,951 66,655.70 11,426 76,073.33 0.0388
2018-05-11 2018-03-31 13F AMERICAN ASSETS TR COM 024013104 447 -297,904 -99.85 15 -99.87 0.0001
2018-02-08 2017-12-31 13F AMERICAN ASSETS TR COM 024013104 298,351 -145,088 -32.72 11,449 -46.76 0.0398
2017-11-06 2017-09-30 13F AMERICAN ASSETS TR COM 024013104 443,439 150,483 51.37 21,504 86.36 0.0764
2017-07-31 2017-06-30 13F AMERICAN ASSETS TR COM 024013104 292,956 47,041 19.13 11,539 12.15 0.0460
2017-05-05 2017-03-31 13F AMERICAN ASSETS TR COM 024013104 245,915 17,893 7.85 10,289 4.89 0.0451
2017-02-02 2016-12-31 13F AMERICAN ASSETS TR COM 024013104 228,022 -73,416 -24.36 9,809 -24.98 0.0475
2016-11-04 2016-09-30 13F AMERICAN ASSETS TR COM 024013104 301,438 4,400 1.48 13,076 3.73 0.0664
2016-08-11 2016-06-30 13F AMERICAN ASSETS TR COM 024013104 297,038 51,400 20.93 12,606 28.55 0.0756
2016-05-10 2016-03-31 13F/A-1 AMERICAN ASSETS TR COM 024013104 245,638 46,798 23.54 9,806 28.59 0.0610
2016-02-03 2015-12-31 13F AMERICAN ASSETS TR COM 024013104 198,840 -15,911 -7.41 7,626 -13.09 0.0465
2015-11-02 2015-09-30 13F/A-1 AMERICAN ASSETS TR COM 024013104 214,751 -86,950 -28.82 8,775 -25.82 0.0805
2015-10-30 2015-09-30 13F AMERICAN ASSETS TR COM 024013104 214,751 8,775
2015-08-07 2015-06-30 13F/A-1 AMERICAN ASSETS TR COM 024013104 301,701 -5,644 -1.84 11,830 -11.07 0.1069
2015-08-04 2015-06-30 13F AMERICAN ASSETS TR COM 024013104 301,701 -5,644 11,830 0.1069
2015-05-14 2015-03-31 13F/A-1 AMERICAN ASSETS TR COM 024013104 307,345 11,492 3.88 13,302 12.94 0.1155
2015-05-01 2015-03-31 13F AMERICAN ASSETS TR COM 024013104 307,345 13,302
2015-02-10 2014-12-31 13F AMERICAN ASSETS TR COM 024013104 295,853 295,853 11,778 0.1041
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.