Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionAPG Asset Management US Inc.
Latest Disclosed Ownership880,641 shares
Latest Disclosed Value $ 165,639,766
APG Asset Management US Inc. reports 34.33% increase in ownership of SPG / Simon Property Group, Inc.

On May 13, 2026 - APG Asset Management US Inc. filed a 13F-HR form disclosing ownership of 880,641 shares of Simon Property Group, Inc. (MX:SPG) valued at $165,639,766 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 655,596 shares of Simon Property Group, Inc.. This represents a change in shares of 34.33% 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)
2026-05-13 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 880,641 225,045 34.33 165,640 36.49 1.2761
2026-02-12 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 655,596 115,211 21.32 121,357 20.90 0.9505
2025-11-12 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 540,385 0 0.00 100,382 13.08 0.7404
2025-08-12 2025-06-30 13F IMON PPTY GROUP INC COM 828806109 540,385 -21,825 -3.88 88,769 -5.15 0.6640
2025-05-14 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 562,210 8,057 1.45 93,591 -1.93 0.7170
2025-02-13 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 554,153 -307,851 -35.71 95,431 -34.70 0.7240
2024-11-14 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 862,004 -5,057 -0.58 146,153 15.04 0.9892
2024-08-14 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 867,061 80,000 10.16 127,042 5.17 0.7275
2024-05-14 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 787,061 45,000 6.06 120,798 14.13 0.6993
2024-02-14 2023-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 742,061 0 0.00 105,848 32.04 0.6488
2024-02-13 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 742,061 0 105,848 0.6113
2023-11-14 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 742,061 -78,466 -9.56 80,165 -15.40 0.7061
2023-08-14 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 820,527 -221 -0.03 94,754 3.11 0.7570
2023-05-12 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 820,748 -63,839 -7.22 91,899 -11.57 0.7504
2023-02-14 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 884,587 224,796 34.07 103,921 75.49 0.8404
2022-11-14 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 659,791 -92,991 -12.35 59,216 -17.79 0.4835
2022-08-12 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 752,782 -139,768 -15.66 72,026 -38.66 0.4920
2022-05-12 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 892,550 6,450 0.73 117,424 -17.06 0.6536
2022-02-11 2021-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 886,100 131,000 17.35 141,572 40.82 0.7567
2022-02-11 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 886,100 131,000 141,572 0.7628
2021-11-15 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 755,100 -79,500 -9.53 100,534 -8.42 0.6166
2021-08-13 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 834,600 -52,400 -5.91 109,783 8.79 0.6794
2021-05-14 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 887,000 -47,500 -5.08 100,914 26.63 0.6954
2021-02-12 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 934,500 -235,500 -20.13 79,694 5.31 0.5868
2020-11-12 2020-09-30 13F SIMON PPTY GROUP INC COM 828806109 1,170,000 -2,930,000 -71.46 75,676 -73.01 0.6101
2020-08-14 2020-06-30 13F SIMON PPTY GROUP INC COM 828806109 4,100,000 -2,323,500 -36.17 280,358 -20.44 2.3362
2020-05-14 2020-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,423,500 358,000 5.90 352,393 -61.00 3.2238
2020-02-13 2019-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,065,500 -334,500 -5.23 903,517 -9.30 6.3218
2019-11-08 2019-09-30 13F SIMON PPTY GROUP INC COM 828806109 6,400,000 -67,000 -1.04 996,160 -3.58 6.9284
2019-08-13 2019-06-30 13F SIMON PPTY GROUP INC COM 828806109 6,467,000 -235,900 -3.52 1,033,168 -15.41 7.6096
2019-05-14 2019-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,702,900 -520,840 -7.21 1,221,335 0.64 8.9443
2019-02-13 2018-12-31 13F SIMON PPTY GROUP INC COM 828806109 7,223,740 -308,681 -4.10 1,213,516 -8.85 10.1693
2018-11-09 2018-09-30 13F SIMON PPTY GROUP INC COM 828806109 7,532,421 17,681 0.24 1,331,355 4.10 10.3770
2018-08-13 2018-06-30 13F SIMON PPTY GROUP INC COM 828806109 7,514,740 224,500 3.08 1,278,934 13.66 9.9458
2018-05-14 2018-03-31 13F SIMON PPTY GROUP INC COM 828806109 7,290,240 -227,708 -3.03 1,125,249 -12.85 9.6391
2018-01-23 2017-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 7,517,948 24,208 0.32 1,291,132 7.01 10.5887
2018-01-22 2017-12-31 13F SIMON PPTY GROUP INC COM 828806109 7,517,948 24,208 1,291,132
2017-10-23 2017-09-30 13F SIMON PPTY GROUP INC COM 828806109 7,493,740 235,200 3.24 1,206,567 2.76 10.0889
2017-07-21 2017-06-30 13F SIMON PPTY GROUP INC COM 828806109 7,258,540 498,800 7.38 1,174,141 0.97 9.8934
2017-05-01 2017-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,759,740 -189,017 -2.72 1,162,878 -5.81 9.7754
2017-01-30 2016-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,948,757 10,734 0.15 1,234,586 -14.04 10.2778
2016-10-31 2016-09-30 13F SIMON PPTY GROUP INC COM 828806109 6,938,023 0 0.00 1,436,240 -4.56 11.4446
2016-08-11 2016-06-30 13F SIMON PPTY GROUP INC COM 828806109 6,938,023 -11,069 -0.16 1,504,857 4.27 11.7499
2016-05-16 2016-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,949,092 -32,998 -0.47 1,443,257 6.31 11.6568
2016-02-16 2015-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,982,090 496,500 7.66 1,357,598 13.94 11.3072
2015-11-12 2015-09-30 13F SIMON PPTY GROUP INC COM 828806109 6,485,590 144,350 2.28 1,191,533 8.60 10.5676
2015-08-12 2015-06-30 13F SIMON PPTY GROUP INC COM 828806109 6,341,240 -95,500 -1.48 1,097,162 -12.87 10.1275
2015-05-14 2015-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,436,740 -79,500 -1.22 1,259,284 6.12 10.4257
2015-02-10 2014-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 6,516,240 22,500 0.35 1,186,673 11.14 10.2036
2015-02-09 2014-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,516,240 1,186,673
2014-11-12 2014-09-30 13F SIMON PPTY GROUP INC COM 828806109 6,493,740 -87,000 -1.32 1,067,701 -2.43 10.4665
2014-08-11 2014-06-30 13F SIMON PPTY GROUP INC COM 828806109 6,580,740 40,400 0.62 1,094,245 2.02 10.4022
2014-04-30 2014-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,540,340 30,200 0.46 1,072,615 8.28 10.8682
2014-02-20 2013-12-31 13F/A-1 SIMON PPTY GROUP INC COM 828806109 6,510,140 40,631 0.63 990,584 3.30 11.1113
2014-02-12 2013-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,510,140 990,584
2013-11-13 2013-09-30 13F SIMON PPTY GROUP INC COM 828806109 6,469,509 -154,521 -2.33 958,975 -8.33 10.6165
2013-08-16 2013-06-30 13F/A-1 SIMON PPTY GROUP INC COM 828806109 6,624,030 6,624,030 1,046,067 10.9085
2013-08-14 2013-06-30 13F SIMON PPTY GROUP INC COM 828806109 6,861,136 1,087,902 11.0414
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.