Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership246,323 shares
Latest Disclosed Value $ 45,947
Natixis Advisors, L.p. reports 3.59% increase in ownership of SPG / Simon Property Group, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 246,323 shares of Simon Property Group, Inc. (MX:SPG) valued at $45,947 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 237,791 shares of Simon Property Group, Inc.. This represents a change in shares of 3.59% 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 COM 828806109 246,323 8,532 3.59 46 2.27 0.0639
2026-02-10 2025-12-31 13F SIMON PPTY GROUP COM 828806109 237,791 15,722 7.08 44 7.32 0.0624
2025-11-13 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 222,069 25,427 12.93 42 32.26 0.0608
2025-08-13 2025-06-30 13F SIMON PPTY GROUP COM 828806109 196,642 421 0.21 32 -3.12 0.0502
2025-05-08 2025-03-31 13F SIMON PPTY GROUP COM 828806109 196,221 -1,027 -0.52 33 -3.03 0.0602
2025-02-10 2024-12-31 13F SIMON PPTY GROUP COM 828806109 197,248 11,293 6.07 34 6.45 0.0635
2024-11-06 2024-09-30 13F SIMON PPTY GROUP COM 828806109 185,955 8,156 4.59 31 19.23 0.0613
2024-08-01 2024-06-30 13F SIMON PPTY GROUP COM 828806109 177,799 8,490 5.01 27 0.00 0.0587
2024-04-25 2024-03-31 13F SIMON PPTY GROUP COM 828806109 169,309 4,381 2.66 26 13.04 0.0609
2024-02-06 2023-12-31 13F SIMON PPTY GROUP COM 828806109 164,928 9,942 6.41 24 43.75 0.0619
2023-11-13 2023-09-30 13F SIMON PPTY GROUP COM 828806109 154,986 34,138 28.25 17 23.08 0.0512
2023-08-15 2023-06-30 13F SIMON PPTY GROUP COM 828806109 120,848 9,342 8.38 14 8.33 0.0431
2023-05-11 2023-03-31 13F SIMON PPTY GROUP COM 828806109 111,506 -27,064 -19.53 12 -25.00 0.0430
2023-01-27 2022-12-31 13F SIMON PPTY GROUP COM 828806109 138,570 43,444 45.67 16 -99.81 0.0615
2022-11-14 2022-09-30 13F SIMON PPTY GROUP COM 828806109 95,126 39,130 69.88 8,538 60.64 0.0361
2022-08-12 2022-06-30 13F SIMON PPTY GROUP COM 828806109 55,996 -12,992 -18.83 5,315 -41.44 0.0234
2022-05-12 2022-03-31 13F SIMON PPTY GROUP COM 828806109 68,988 1,962 2.93 9,076 -15.25 0.0346
2022-02-08 2021-12-31 13F SIMON PPTY GROUP COM 828806109 67,026 19,401 40.74 10,709 73.00 0.0409
2021-11-15 2021-09-30 13F SIMON PPTY GROUP COM 828806109 47,625 1,542 3.35 6,190 2.94 0.0255
2021-08-12 2021-06-30 13F SIMON PPTY GROUP COM 828806109 46,083 2,919 6.76 6,013 22.46 0.0281
2021-05-05 2021-03-31 13F SIMON PPTY GROUP COM 828806109 43,164 5,874 15.75 4,910 54.40 0.0256
2021-02-12 2020-12-31 13F SIMON PPTY GROUP COM 828806109 37,290 -1,385 -3.58 3,180 27.10 0.0183
2020-11-12 2020-09-30 13F SIMON PPTY GROUP COM 828806109 38,675 -16,850 -30.35 2,502 -34.09 0.0157
2020-08-11 2020-06-30 13F SIMON PPTY GROUP COM 828806109 55,525 -7,794 -12.31 3,796 9.30 0.0252
2020-04-27 2020-03-31 13F SIMON PPTY GROUP COM 828806109 63,319 -5,402 -7.86 3,473 -66.07 0.0283
2020-02-10 2019-12-31 13F SIMON PPTY GROUP COM 828806109 68,721 -9,543 -12.19 10,236 -15.97 0.0722
2019-11-12 2019-09-30 13F SIMON PPTY GROUP COM 828806109 78,264 -20,238 -20.55 12,182 -22.59 0.0967
2019-08-12 2019-06-30 13F SIMON PPTY GROUP COM 828806109 98,502 -10,260 -9.43 15,736 -20.59 0.1285
2019-05-15 2019-03-31 13F/A-1 SIMON PPTY GROUP COM 828806109 108,762 -6,386 -5.55 19,817 2.45 0.1735
2019-05-15 2019-03-31 13F SIMON PPTY GROUP COM 828806109 108,762 -6,386 19,817
2019-02-13 2018-12-31 13F/A-1 SIMON PPTY GROUP COM 828806109 115,148 -6,140 -5.06 19,344 -9.76 0.1910
2019-02-13 2018-12-31 13F SIMON PPTY GROUP COM 828806109 115,148 -6,140 19,344
2018-11-13 2018-09-30 13F SIMON PPTY GROUP COM 828806109 121,288 237 0.20 21,437 4.06 0.1887
2018-08-14 2018-06-30 13F/A-1 SIMON PPTY GROUP COM 828806109 121,051 -1,444 -1.18 20,601 8.96 0.1968
2018-08-14 2018-06-30 13F SIMON PPTY GROUP COM 828806109 121,051 20,601
2018-05-10 2018-03-31 13F SIMON PPTY GROUP COM 828806109 122,495 -10,151 -7.65 18,907 -17.01 0.1866
2018-02-14 2017-12-31 13F SIMON PPTY GROUP COM 828806109 132,646 -12,765 -8.78 22,781 -2.70 0.2320
2017-11-14 2017-09-30 13F SIMON PPTY GROUP INC COM 828806109 145,411 -1,947 -1.32 23,412 -1.78 0.2473
2017-07-27 2017-06-30 13F SIMON PPTY GROUP COM 828806109 147,358 -11,787 -7.41 23,836 -12.94 0.2580
2017-05-12 2017-03-31 13F SIMON PPTY GROUP COM 828806109 159,145 2,959 1.89 27,378 -1.34 0.3034
2017-02-07 2016-12-31 13F SIMON PPTY GROUP COM 828806109 156,186 16,392 11.73 27,750 -4.11 0.3336
2016-11-04 2016-09-30 13F SIMON PPTY GROUP COM 828806109 139,794 3,274 2.40 28,939 -2.27 0.3749
2016-08-01 2016-06-30 13F SIMON PPTY GROUP COM 828806109 136,520 7,242 5.60 29,611 10.28 0.4094
2016-05-06 2016-03-31 13F SIMON PPTY GROUP COM 828806109 129,278 -546 -0.42 26,850 6.37 0.4018
2016-02-12 2015-12-31 13F SIMON PPTY GROUP COM 828806109 129,824 -4,178 -3.12 25,243 2.53 0.4138
2015-11-12 2015-09-30 13F SIMON PPTY GROUP COM 828806109 134,002 10,570 8.56 24,619 15.28 0.4270
2015-08-14 2015-06-30 13F SIMON PPTY GROUP COM 828806109 123,432 -2,810 -2.23 21,356 -13.53 0.3626
2015-05-15 2015-03-31 13F SIMON PPTY GROUP COM 828806109 126,242 -4,435 -3.39 24,698 3.78 0.4335
2015-02-05 2014-12-31 13F SIMON PPTY GROUP COM 828806109 130,677 1,664 1.29 23,798 12.19 0.4454
2014-11-03 2014-09-30 13F SIMON PPTY GROUP COM 828806109 129,013 -138,642 -51.80 21,212 -52.34 0.4256
2014-08-13 2014-06-30 13F SIMON PPTY GROUP COM 828806109 267,655 -12,521 -4.47 44,505 -3.14 0.6377
2014-05-13 2014-03-31 13F SIMON PPTY GROUP COM 828806109 280,176 -714 -0.25 45,949 7.51 0.7072
2014-02-12 2013-12-31 13F SIMON PPTY GROUP COM 828806109 280,890 -38,289 -12.00 42,740 -9.66 0.6995
2013-10-30 2013-09-30 13F SIMON PPTY GROUP COM 828806109 319,179 -15,283 -4.57 47,312 -10.42 0.8713
2013-07-19 2013-06-30 13F SIMON PPTY GROUP COM 828806109 334,462 334,462 52,818 1.0523
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.