Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionNational Pension Service
Latest Disclosed Ownership1,213,342 shares
Latest Disclosed Value $ 226,324,683
National Pension Service reports 5.35% decrease in ownership of SPG / Simon Property Group, Inc.

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 1,213,342 shares of Simon Property Group, Inc. (MX:SPG) valued at $226,324,683 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,281,866 shares of Simon Property Group, Inc.. This represents a change in shares of -5.35% 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)
2026-05-12 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 1,213,342 -68,524 -5.35 226,325 -4.62 0.1719
2026-02-10 2025-12-31 13F SIMON PPTY GROUP INC SIMON PPTY GROUP INC NEW 828806109 1,281,866 201,552 18.66 237,286 17.04 0.1757
2025-11-04 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 1,080,314 33,758 3.23 202,743 20.50 0.1574
2025-08-08 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 1,046,556 71,859 7.37 168,244 3.93 0.1453
2025-05-13 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 974,697 76,933 8.57 161,878 4.70 0.1556
2025-02-05 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 897,764 -31,331 -3.37 154,604 -1.55 0.1463
2024-10-30 2024-09-30 13F SIMONPPTYGROUPINCNEW COM 828806109 929,095 105,638 12.83 157,036 25.63 0.1514
2024-08-13 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 823,457 15,673 1.94 125,001 -1.12 0.1436
2024-05-14 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 807,784 11,552 1.45 126,410 11.30 0.1517
2024-02-07 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 796,232 21,253 2.74 113,575 34.27 0.1582
2023-11-15 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 774,979 23,334 3.10 84,589 -1.94 0.1354
2023-08-16 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 751,645 112,904 17.68 86,259 25.55 0.1391
2023-05-12 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 638,741 9,575 1.52 68,703 -7.05 0.1251
2023-02-24 2022-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 629,166 20,956 3.45 73,914 36.35 0.1454
2023-02-21 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 629,166 20,956 74 0.1454
2023-02-24 2022-09-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 608,210 29,358 5.07 54,210 -1.34 0.1131
2022-11-18 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 608,210 29,358 54,210 0.1131
2022-08-17 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 578,852 59,863 11.53 54,945 -19.53 0.1133
2022-05-13 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 518,989 -2,186 -0.42 68,278 -18.00 0.1246
2022-02-15 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 521,175 -31,269 -5.66 83,268 15.97 0.1453
2021-11-18 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 552,444 46,727 9.24 71,801 8.81 0.1367
2021-08-17 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 505,717 4,909 0.98 65,986 15.81 0.1253
2021-05-14 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 500,808 -18,847 -3.63 56,977 28.57 0.1192
2021-02-19 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 519,655 45,826 9.67 44,316 42.16 0.1010
2020-11-13 2020-09-30 13F SIMON PPTY GROUP INC COM 828806109 473,829 0 0.00 31,173 -3.79 0.0819
2020-08-11 2020-06-30 13F SIMON PPTY GROUP INC COM 828806109 473,829 95,240 25.16 32,400 56.00 0.0925
2020-05-27 2020-03-31 13F SIMON PPTY GROUP INC COM 828806109 378,589 6,066 1.63 20,769 -62.57 0.0703
2020-02-21 2019-12-31 13F SIMON PPTY GROUP INC COM 828806109 372,523 -3,191 -0.85 55,491 -5.11 0.1522
2019-11-15 2019-09-30 13F SIMON PPTY GROUP INC COM 828806109 375,714 17,357 4.84 58,480 2.15 0.1851
2019-08-14 2019-06-30 13F SIMON PPTY GROUP INC COM 828806109 358,357 15,873 4.63 57,251 -8.26 0.1913
2019-05-15 2019-03-31 13F SIMON PPTY GROUP INC COM 828806109 342,484 12,207 3.70 62,404 2.82 0.2400
2019-02-15 2018-12-31 13F SIMON PPTY GROUP INC COM 828806109 330,277 17,839 5.71 60,692 9.90 0.2504
2018-11-15 2018-09-30 13F SIMON PPTY GROUP INC COM 828806109 312,438 651 0.21 55,223 3.45 0.2248
2018-08-14 2018-06-30 13F SIMON PPTY GROUP INC COM 828806109 311,787 6,626 2.17 53,381 13.33 0.2416
2018-04-13 2018-03-31 13F SIMON PPTY GROUP INC COM 828806109 305,161 16,751 5.81 47,102 -4.91 0.2335
2018-01-17 2017-12-31 13F SIMON PPTY GROUP INC COM 828806109 288,410 14,956 5.47 49,532 12.10 0.2473
2017-10-16 2017-09-30 13F SIMON PROPERTY GROUP COM 828806109 273,454 11,024 4.20 44,187 3.56 0.2431
2017-07-13 2017-06-30 13F SIMON PPTY GROUP INC COM 828806109 262,430 27,981 11.93 42,666 7.02 0.2541
2017-04-11 2017-03-31 13F SIMON PPTY GROUP INC COM 828806109 234,449 17,880 8.26 39,866 3.61 0.2669
2017-01-18 2016-12-31 13F SIMON PPTY GROUP INC COM 828806109 216,569 17,365 8.72 38,478 -6.69 0.2632
2016-10-14 2016-09-30 13F SIMON PPTY GROUP INC COM 828806109 199,204 15,982 8.72 41,237 3.76 0.3305
2016-08-11 2016-06-30 13F SIMON PPTY GROUP INC COM 828806109 183,222 16,295 9.76 39,741 14.63 0.3528
2016-05-16 2016-03-31 13F SIMON PPTY GROUP INC COM 828806109 166,927 6,759 4.22 34,669 11.32 0.3472
2016-02-12 2015-12-31 13F SIMON PPTY GROUP INC COM 828806109 160,168 9,842 6.55 31,143 12.76 0.3271
2015-10-15 2015-09-30 13F SIMON PPTY GROUP INC COM 828806109 150,326 21,667 16.84 27,618 24.07 0.3492
2015-07-15 2015-06-30 13F SIMON PPTY GROUP INC COM 828806109 128,659 18,331 16.62 22,260 3.13 0.2888
2015-04-15 2015-03-31 13F SIMON PPTY GROUP INC COM 828806109 110,328 14,971 15.70 21,585 24.30 0.3119
2015-01-13 2014-12-31 13F SIMON PPTY GROUP INC COM 828806109 95,357 -9,593 -9.14 17,365 0.63 0.2931
2014-11-07 2014-09-30 13F SIMON PPTY GROUP INC COM 828806109 104,950 104,950 17,256 0.2740
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.