Simon Property Group, Inc.
US ˙ NYSE ˙ US8288061091

SecuritySPG / Simon Property Group, Inc.
InstitutionKBC Group NV
Latest Disclosed Ownership840,002 shares
Latest Disclosed Value $ 156,686
KBC Group NV reports 6.90% decrease in ownership of SPG / Simon Property Group, Inc.

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 840,002 shares of Simon Property Group, Inc. (US:SPG) valued at $156,685,573 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 902,219 shares of Simon Property Group, Inc.. This represents a change in shares of -6.90% during the quarter. The current value of the position is $170,982,407 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-07 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 840,002 -62,217 -6.90 157 -6.59 0.2021
2026-01-26 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 902,219 -31,246 -3.35 167 -4.57 0.3808
2026-01-20 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 933,465 -11,318 -1.20 175 15.89 0.4201
2025-08-08 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 944,783 89,951 10.52 152 7.09 0.4102
2025-04-25 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 854,832 -25,477 -2.89 142 -6.62 0.4406
2025-01-22 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 880,309 554,605 170.28 152 174.55 0.4177
2024-11-06 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 325,704 232,840 250.73 55 292.86 0.1663
2024-07-17 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 92,864 -360,531 -79.52 14 -80.00 0.0426
2024-05-08 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 453,395 182,354 67.28 71 84.21 0.2254
2024-02-13 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 271,041 -33,469 -10.99 39 18.75 0.1371
2024-02-15 2023-09-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 304,510 227,078 293.26 33 300.00 0.1343
2023-11-22 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 76,881 0 9 0.0370
2024-02-15 2023-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 77,432 -29,266 -27.43 9 -27.27 0.0368
2023-07-28 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 76,881 -29,472 9 0.0370
2024-02-14 2023-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 106,698 9,578 9.86 12 0.00 0.0507
2023-05-04 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 106,353 38,540 12 0.0561
2024-02-14 2022-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 97,120 28,931 42.43 11 83.33 0.0553
2023-02-13 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 67,813 -376 6 0.0000
2024-02-15 2022-09-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 68,189 37,549 122.55 6 200.00 0.0318
2022-11-08 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 67,813 37,173 6,086 0.0318
2024-02-14 2022-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 30,640 10,460 51.83 3 0.00 0.0145
2022-07-26 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 30,207 10,027 2,868 0.0144
2024-02-14 2022-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 20,180 -1,000 -4.72 3 -33.33 0.0105
2022-05-06 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 20,180 -1,000 2,655 0.0098
2024-02-14 2021-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 21,180 -54,911 -72.16 3 -99.97 0.0112
2022-02-03 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 21,180 -54,911 3,384 0.0106
2021-11-10 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 76,091 769 1.02 9,889 0.63 0.0363
2022-02-15 2021-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 75,322 -13,337 -15.04 9,827 -2.57 0.0354
2021-08-11 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 75,322 -13,337 9,827 0.0354
2022-02-14 2021-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 88,659 4,674 5.57 10,086 -85.53 0.0408
2021-04-26 2021-03-31 13F SIMON PROPERTY GROUP COM 828806109 88,659 4,674 10,086 0.0408
2022-02-14 2020-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 83,985 -1,695 -1.98 69,703 1,157.95 0.0328
2021-02-10 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 83,985 -1,695 7,162 0.0330
2022-02-14 2020-09-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 85,680 32,639 61.54 5,541 52.77 0.0326
2020-10-28 2020-09-30 13F SIMON PPTY GROUP INC COM 828806109 85,680 32,639 5,541 0.0328
2022-02-14 2020-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 53,041 -7,957 -13.04 3,627 8.37 0.0240
2020-08-10 2020-06-30 13F SIMON PPTY GROUP INC COM 828806109 53,041 -7,957 3,627 0.0243
2020-05-04 2020-03-31 13F SIMON PPTY GROUP INC COM 828806109 60,998 -41,374 -40.42 3,347 -78.05 0.0280
2020-02-11 2019-12-31 13F SIMON PPTY GROUP INC COM 828806109 102,372 -9,589 -8.56 15,249 -12.50 0.0964
2019-11-07 2019-09-30 13F SIMON PPTY GROUP INC COM 828806109 111,961 -108,502 -49.22 17,427 -50.52 0.1278
2019-08-08 2019-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 220,463 -83,864 -27.56 35,222 -36.48 0.2727
2019-07-30 2019-06-30 13F SIMON PPTY GROUP INC COM 828806109 220,463 -161,190 35,222
2019-08-07 2019-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 304,327 78,679 34.87 55,452 46.29 0.4568
2019-05-10 2019-03-31 13F SIMON PPTY GROUP INC COM 828806109 304,327 78,679 55,452
2019-01-31 2018-12-31 13F SIMON PPTY GROUP INC COM 828806109 225,648 125,525 125.37 37,906 114.19 0.4223
2018-11-14 2018-09-30 13F SIMON PPTY GROUP INC COM 828806109 100,123 17,599 21.33 17,697 26.00 0.1339
2018-08-03 2018-06-30 13F SIMON PPTY GROUP INC COM 828806109 82,524 957 1.17 14,045 11.56 0.1223
2018-08-03 2018-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 81,567 -10,742 -11.64 12,590 -20.58 0.1165
2018-05-09 2018-03-31 13F SIMON PPTY GROUP INC COM 828806109 81,567 -10,742 12,590
2018-08-03 2017-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 92,309 -44,413 -32.48 15,853 -27.99 0.1356
2018-02-07 2017-12-31 13F SIMON PPTY GROUP INC COM 828806109 92,309 -44,413 15,853
2017-11-13 2017-09-30 13F SIMON PPTY GROUP INC COM 828806109 136,722 6,976 5.38 22,014 4.89 0.1998
2017-08-04 2017-06-30 13F SIMON PPTY GROUP INC COM 828806109 129,746 -141,264 -52.13 20,988 -54.98 0.2028
2017-05-10 2017-03-31 13F SIMON PPTY GROUP INC COM 828806109 271,010 -80,369 -22.87 46,622 -25.32 0.4209
2017-02-16 2016-12-31 13F SIMON PPTY GROUP INC COM 828806109 351,379 121,779 53.04 62,430 31.35 0.6188
2016-11-03 2016-09-30 13F SIMON PPTY GROUP INC COM 828806109 229,600 23,649 11.48 47,530 6.40 0.5615
2016-08-03 2016-06-30 13F SIMON PPTY GROUP INC COM 828806109 205,951 63,041 44.11 44,671 50.50 0.6390
2016-05-11 2016-03-31 13F SIMON PPTY GROUP INC COM 828806109 142,910 -11,314 -7.34 29,681 -1.02 0.4931
2016-02-11 2015-12-31 13F SIMON PPTY GROUP INC COM 828806109 154,224 13,004 9.21 29,988 15.58 0.5524
2015-11-12 2015-09-30 13F SIMON PPTY GROUP INC COM 828806109 141,220 -40,204 -22.16 25,945 -17.35 0.5219
2015-12-16 2015-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 181,424 27,620 17.96 31,390 4.32 0.4035
2015-07-31 2015-06-30 13F SIMON PPTY GROUP INC COM 828806109 181,424 31,390
2015-12-16 2015-03-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 153,804 -69,017 -30.97 30,090 -25.85 0.3822
2015-04-30 2015-03-31 13F SIMON PPTY GROUP INC COM 828806109 153,804 30,090
2015-12-15 2014-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 222,821 209,289 1,546.62 40,578 1,723.73 0.4833
2015-02-12 2014-12-31 13F SIMON PPTY GROUP INC COM 828806109 222,821 40,578
2014-10-16 2014-09-30 13F SIMON PPTY GROUP INC COM 828806109 13,532 -232,788 -94.51 2,225 -94.57 0.0777
2014-08-01 2014-06-30 13F SIMON PPTY GROUP INC COM 828806109 246,320 43,190 21.26 40,958 22.95 0.4679
2014-04-30 2014-03-31 13F SIMON PPTY GROUP INC COM 828806109 203,130 44,402 27.97 33,313 37.92 0.5261
2014-01-21 2013-12-31 13F SIMON PPTY GROUP INC COM 828806109 158,728 -24,807 -13.52 24,153 -11.22 0.3654
2013-11-06 2013-09-30 13F SIMON PPTY GROUP INC COM 828806109 183,535 1,270 0.70 27,206 -5.48 0.4379
2013-07-29 2013-06-30 13F SIMON PPTY GROUP INC COM 828806109 182,265 182,265 28,784 0.5340
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.