Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionNissay Asset Management Corp /japan/ /adv
Latest Disclosed Ownership93,781 shares
Latest Disclosed Value $ 17,492,970
Nissay Asset Management Corp /japan/ /adv reports 2.40% increase in ownership of SPG / Simon Property Group, Inc.

On May 15, 2026 - Nissay Asset Management Corp /japan/ /adv filed a 13F-HR form disclosing ownership of 93,781 shares of Simon Property Group, Inc. (MX:SPG) valued at $17,492,970 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 91,580 shares of Simon Property Group, Inc.. This represents a change in shares of 2.40% 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)
2026-05-15 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 93,781 2,201 2.40 17,493 3.19 0.0927
2026-02-17 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 91,580 1,999 2.23 16,952 0.84 0.0882
2025-11-14 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 89,581 2,522 2.90 16,812 20.12 0.0928
2025-08-14 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 87,059 2,492 2.95 13,996 -0.35 0.0819
2025-05-15 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 84,567 1,097 1.31 14,045 -2.18 0.0913
2025-02-14 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 83,470 1,813 2.22 14,358 4.03 0.0876
2024-11-14 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 81,657 420 0.52 13,802 11.92 0.0874
2024-08-14 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 81,237 3,674 4.74 12,332 1.60 0.0816
2024-05-15 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 77,563 1,558 2.05 12,138 11.95 0.0841
2024-02-14 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 76,005 2,753 3.76 10,841 37.00 0.0872
2023-11-14 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 73,252 2,744 3.89 7,913 -2.81 0.0701
2023-08-14 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 70,508 1,091 1.57 8,142 4.76 0.0702
2023-05-15 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 69,417 153 0.22 7,773 -4.49 0.0694
2023-02-14 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 69,264 -128 -0.18 8,137 30.65 0.0778
2022-11-14 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 69,392 3,149 4.75 6,228 -0.95 0.0654
2022-08-15 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 66,243 1,020 1.56 6,288 -26.72 0.0626
2022-05-16 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 65,223 685 1.06 8,581 -16.78 0.0747
2022-02-14 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 64,538 1,865 2.98 10,311 26.58 0.0790
2021-11-10 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 62,673 2,199 3.64 8,146 3.23 0.0690
2021-08-13 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 60,474 1,986 3.40 7,891 18.59 0.0693
2021-05-11 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 58,488 971 1.69 6,654 35.66 0.0656
2021-02-08 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 57,517 385 0.67 4,905 32.75 0.0737
2020-10-20 2020-09-30 13F SIMON PPTY GROUP INC COM 828806109 57,132 2,146 3.90 3,695 -1.73 0.0624
2020-07-27 2020-06-30 13F SIMON PPTY GROUP INC COM 828806109 54,986 5,851 11.91 3,760 39.47 0.0730
2020-05-05 2020-03-31 13F SIMON PPTY GROUP INC COM 828806109 49,135 2,422 5.18 2,696 -61.25 0.0686
2020-02-14 2019-12-31 13F SIMON PPTY GROUP INC COM 828806109 46,713 692 1.50 6,958 -2.86 0.1546
2019-11-14 2019-09-30 13F SIMON PPTY GROUP INC COM 828806109 46,021 841 1.86 7,163 -0.76 0.1773
2019-08-07 2019-06-30 13F SIMON PPTY GROUP INC COM 828806109 45,180 -1,494 -3.20 7,218 -15.12 0.1825
2019-05-03 2019-03-31 13F SIMON PPTY GROUP INC COM 828806109 46,674 1,035 2.27 8,504 10.92 0.2247
2019-02-06 2018-12-31 13F SIMON PPTY GROUP INC COM 828806109 45,639 2,363 5.46 7,667 0.24 0.2336
2018-10-30 2018-09-30 13F SIMON PPTY GROUP INC COM 828806109 43,276 1,394 3.33 7,649 7.31 0.2058
2018-08-08 2018-06-30 13F SIMON PPTY GROUP INC COM 828806109 41,882 2,302 5.82 7,128 16.68 0.2085
2018-05-14 2018-03-31 13F SIMON PPTY GROUP INC COM 828806109 39,580 1,156 3.01 6,109 -7.41 0.1909
2018-02-14 2017-12-31 13F SIMON PPTY GROUP INC COM 828806109 38,424 38,424 6,598 0.2009
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.