Simon Property Group, Inc.
MX ˙ BMV ˙ US8288061091
SecurityMX:SPG / Simon Property Group, Inc.
InstitutionOsbon Capital Management Llc
Latest Disclosed Ownership91 shares
Latest Disclosed Value $ 16,974
Osbon Capital Management Llc reports 28.17% increase in ownership of SPG / Simon Property Group, Inc.

On May 15, 2026 - Osbon Capital Management Llc filed a 13F-HR form disclosing ownership of 91 shares of Simon Property Group, Inc. (MX:SPG) valued at $16,974 USD as of March 31, 2026. The entity filed a previous 13F-HR on March 16, 2026 disclosing 71 shares of Simon Property Group, Inc.. This represents a change in shares of 28.17% 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)
2026-05-15 2026-03-31 13F SIMON PROPERTY GROUP COM 828806109 91 20 28.17 17 23.08 0.0139
2026-03-16 2025-12-31 13F SIMON PROPERTY GROUP COM SHS 828806109 71 71 13 0.0123
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.