사이먼 프로퍼티 그룹, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionCornerstone Advisory, LLC
Latest Disclosed Ownership1,239 shares
Latest Disclosed Value $ 231,111
Cornerstone Advisory, LLC reports 1.06% increase in ownership of SPG / Simon Property Group, Inc.

On May 4, 2026 - Cornerstone Advisory, LLC filed a 13F-HR form disclosing ownership of 1,239 shares of Simon Property Group, Inc. (MX:SPG) valued at $231,111 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 1,226 shares of Simon Property Group, Inc.. This represents a change in shares of 1.06% 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)
2026-05-04 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 1,239 13 1.06 231 2.21 0.0219
2026-01-28 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 1,226 2 0.16 227 -1.31 0.0216
2025-11-07 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 1,224 -473 -27.87 230 -15.81 0.0226
2025-07-30 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 1,697 3 0.18 273 0.37 0.0293
2025-05-07 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 1,694 -3 -0.18 271 -13.69 0.0317
2025-02-18 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 1,697 52 3.16 314 12.95 0.0357
2024-11-12 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 1,645 -183 -10.01 278 0.36 0.0366
2024-08-14 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 1,828 20 1.11 277 -1.77 0.0390
2024-05-08 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 1,808 -1,046 -36.65 283 -30.71 0.0403
2024-02-13 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 2,854 70 2.51 407 35.67 0.0635
2023-11-14 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 2,784 68 2.50 301 -4.15 0.0526
2023-07-20 2023-06-30 13F SIMON PPTY GROUP INC COM 828806109 2,716 -2 -0.07 314 2.96 0.0551
2023-05-04 2023-03-31 13F SIMON PPTY GROUP INC COM 828806109 2,718 -359 -11.67 304 -15.79 0.0548
2023-02-13 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 3,077 0 0.00 361 30.80 0.0712
2022-10-26 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 3,077 -100 -3.15 276 -8.61 0.0616
2022-08-02 2022-06-30 13F SIMON PPTY GROUP INC COM 828806109 3,177 -1 -0.03 302 -27.75 0.0691
2022-05-20 2022-03-31 13F SIMON PPTY GROUP INC COM 828806109 3,178 -183 -5.44 418 -22.16 0.0637
2022-02-23 2021-12-31 13F SIMON PPTY GROUP INC COM 828806109 3,361 -1,387 -29.21 537 -12.97 0.0772
2021-11-16 2021-09-30 13F SIMON PPTY GROUP INC COM 828806109 4,748 -620 -11.55 617 -11.86 0.1022
2021-08-16 2021-06-30 13F SIMON PPTY GROUP INC COM 828806109 5,368 -1,156 -17.72 700 -5.66 0.1179
2021-05-13 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 6,524 503 8.35 742 44.64 0.1404
2021-05-11 2020-12-31 13F SIMON PPTY GROUP INC COM 828806109 6,021 6,021 513 0.1038
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.