Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionGAMMA Investing LLC
Latest Disclosed Ownership8,020 shares
Latest Disclosed Value $ 1,495,971
GAMMA Investing LLC reports 12.00% increase in ownership of SPG / Simon Property Group, Inc.

On April 6, 2026 - GAMMA Investing LLC filed a 13F-HR form disclosing ownership of 8,020 shares of Simon Property Group, Inc. (MX:SPG) valued at $1,495,971 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 7,161 shares of Simon Property Group, Inc.. This represents a change in shares of 12.00% 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.

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)
2026-04-06 2026-03-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 8,020 859 12.00 1,496 12.83 0.0699
2026-01-05 2025-12-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 7,161 565 8.57 1,326 7.11 0.0666
2025-10-02 2025-09-30 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 6,596 802 13.84 1,238 32.87 0.0683
2025-07-14 2025-06-30 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 5,794 515 9.76 931 6.28 0.0589
2025-04-15 2025-03-31 13F/A-1 SIMON PPTY GROUP INC NEW COM REIT 828806109 5,279 -52 -0.98 877 -4.58 0.0658
2025-04-07 2025-03-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 876,736 871,405 5 0.0281
2025-01-03 2024-12-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 5,331 630 13.40 918 15.62 0.0783
2024-10-04 2024-09-30 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 4,701 889 795 0.0788
2024-10-07 2024-09-30 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 4,701 889 23.32 795 37.37 0.0788
2024-07-02 2024-06-30 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 3,812 891 30.50 579 26.48 0.0789
2024-04-05 2024-03-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 2,921 301 11.49 457 25.90 0.0931
2024-02-01 2023-12-31 13F SIMON PPTY GROUP INC NEW COM REIT 828806109 2,620 2,620 363 0.0984
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.