사이먼 프로퍼티 그룹, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionAmerican Assets Inc
Latest Disclosed Ownership5,000 shares
Latest Disclosed Value $ 932,650
American Assets Inc ownership in SPG / Simon Property Group, Inc.

On May 11, 2026 - American Assets Inc filed a 13F-HR form disclosing ownership of 5,000 shares of Simon Property Group, Inc. (MX:SPG) valued at $932,650 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 5,000 shares of Simon Property Group, Inc.. This represents a change in shares of 0.00% during the quarter.

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)
2026-05-11 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 933 0.76 0.3125
2026-02-03 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 926 -1.39 0.2929
2025-11-05 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 938 15.09 0.3010
2025-08-05 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 815 -1.81 0.2833
2025-05-09 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 830 -3.60 0.2877
2025-03-17 2024-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 861 1.89 0.2664
2025-02-07 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 861 0.2639
2024-11-05 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 845 11.33 0.2775
2024-07-31 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 759 -2.94 0.2790
2024-05-10 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 782 9.68 0.2937
2024-02-13 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 713 32.04 0.2790
2023-11-08 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 540 -6.41 0.2465
2023-08-07 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 577 3.22 0.2623
2023-05-04 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 560 -4.77 0.2702
2023-02-07 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 587 30.73 0.2159
2022-10-25 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 449 -5.47 0.1711
2022-07-21 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 475 -27.81 0.1645
2022-05-05 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 658 -17.65 0.1837
2022-02-08 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 799 22.92 0.2261
2021-10-21 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 650 -0.31 0.1875
2021-08-02 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,000 0 0.00 652 14.59 0.1908
2021-04-29 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 5,000 -5,000 -50.00 569 -33.29 0.1919
2021-02-08 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 10,000 0 0.00 853 31.84 0.3383
2020-10-30 2020-09-30 13F SIMON PPTY GROUP INC COM 828806109 10,000 0 0.00 647 -5.41 0.3267
2020-08-04 2020-06-30 13F SIMON PPTY GROUP INC COM 828806109 10,000 0 0.00 684 24.59 0.3025
2020-04-24 2020-03-31 13F SIMON PPTY GROUP INC COM 828806109 10,000 10,000 549 0.2559
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.