Simon Property Group, Inc.
AT ˙ WBAG ˙ US8288061091
€ 175,90 ↓ -0,40 (-0,23%)
2026-06-03
AKTIENPREIS
SecurityAT:SPGR / Simon Property Group, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership11,758 shares
Latest Disclosed Value $ 2,193,169
Assetmark, Inc reports 10.22% decrease in ownership of SPGR / Simon Property Group, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 11,758 shares of Simon Property Group, Inc. (AT:SPGR) valued at $1,878,928 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 13,096 shares of Simon Property Group, Inc.. This represents a change in shares of -10.22% during the quarter. The current value of the position is $2,068,232 USD.

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)
2026-05-06 2026-03-31 13F SIMON PPTY GROUP INC COM 828806109 11,758 -1,338 -10.22 2,193 -9.53 0.0045
2026-01-23 2025-12-31 13F SIMON PPTY GROUP INC COM 828806109 13,096 658 5.29 2,424 3.86 0.0049
2025-11-06 2025-09-30 13F SIMON PPTY GROUP INC COM 828806109 12,438 855 7.38 2,334 25.35 0.0050
2025-08-04 2025-06-30 13F SIMON PPTY GROUP INC COM 828806109 11,583 1,947 20.21 1,862 16.38 0.0044
2025-05-06 2025-03-31 13F SIMON PPTY GROUP INC COM 828806109 9,636 1,091 12.77 1,600 8.77 0.0044
2025-02-06 2024-12-31 13F SIMON PPTY GROUP INC COM 828806109 8,545 -224 -2.55 1,472 -0.74 0.0040
2024-11-01 2024-09-30 13F SIMON PPTY GROUP INC COM 828806109 8,769 322 3.81 1,482 15.60 0.0042
2024-08-13 2024-06-30 13F SIMON PPTY GROUP INC COM 828806109 8,447 81 0.97 1,282 -2.06 0.0040
2024-05-07 2024-03-31 13F SIMON PPTY GROUP INC COM 828806109 8,366 -886 -9.58 1,309 -0.76 0.0043
2024-02-09 2023-12-31 13F SIMON PPTY GROUP INC COM 828806109 9,252 -1,161 -11.15 1,320 17.35 0.0048
2023-10-27 2023-09-30 13F SIMON PPTY GROUP INC COM 828806109 10,413 630 6.44 1,125 -0.44 0.0045
2023-08-11 2023-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 9,783 -131 -1.32 1,130 1.71 0.0044
2023-05-05 2023-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 9,914 5,822 142.28 1,110 131.25 0.0046
2023-02-10 2022-12-31 13F SIMON PPTY GROUP INC COM 828806109 4,092 19 0.47 481 31.15 0.0021
2022-11-01 2022-09-30 13F SIMON PPTY GROUP INC COM 828806109 4,073 -531,257 -99.24 366 -99.28 0.0017
2022-08-03 2022-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 535,330 33,821 6.74 50,814 -22.98 0.2278
2022-05-13 2022-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 501,509 500,982 95,063.00 65,979 78,446.43 0.2761
2022-02-14 2021-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 527 127 31.75 84 61.54 0.0003
2021-11-12 2021-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 400 -1,101 -73.35 52 -73.47 0.0002
2021-08-16 2021-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 1,501 -802 -34.82 196 -25.19 0.0009
2021-05-14 2021-03-31 13F SIMON PPTY GROUP INC COM 828806109 2,303 -6 -0.26 262 32.99 0.0014
2021-02-10 2020-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 2,309 -38 -1.62 197 29.61 0.0011
2020-11-13 2020-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 2,347 -270 -10.32 152 -15.08 0.0010
2020-08-11 2020-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 2,617 -4,438 -62.91 179 -53.75 0.0013
2020-05-12 2020-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 7,055 -17,920 -71.75 387 -89.60 0.0033
2020-02-11 2019-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 24,975 23,201 1,307.84 3,720 1,247.83 0.0283
2019-11-13 2019-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 1,774 1,223 221.96 276 213.64 0.0023
2019-08-14 2019-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 551 45 8.89 88 -4.35 0.0007
2019-05-14 2019-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 506 34 7.20 92 16.46 0.0008
2019-02-13 2018-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 472 315 200.64 79 182.14 0.0008
2018-11-13 2018-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 157 2 1.29 28 7.69 0.0003
2018-08-01 2018-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 155 -13 -7.74 26 0.00 0.0003
2018-05-16 2018-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 168 -195 -53.72 26 -58.06 0.0003
2018-02-13 2017-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 363 -1,170 -76.32 62 -74.90 0.0006
2017-11-08 2017-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 1,533 -61,482 -97.57 247 -97.58 0.0028
2017-08-14 2017-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 63,015 7,398 13.30 10,193 6.53 0.1282
2017-09-15 2017-03-31 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 55,617 9,140 19.67 9,568 15.86 0.1257
2017-05-08 2017-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 55,617 9,140 9,568
2017-09-15 2016-12-31 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 46,477 1,484 3.30 8,258 -11.34 0.1213
2017-02-14 2016-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 46,477 1,484 8,258
2017-09-14 2016-09-30 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 44,993 3,394 8.16 9,314 3.23 0.1417
2016-11-04 2016-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 44,993 3,394 9,314
2017-09-14 2016-06-30 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 41,599 2,175 5.52 9,023 10.20 0.1517
2016-08-08 2016-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 41,599 2,175 9,023
2017-09-14 2016-03-31 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 39,424 1,301 3.41 8,188 10.45 0.1429
2016-05-13 2016-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 39,424 1,301 8,188
2017-09-14 2015-12-31 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 38,123 6,710 21.36 7,413 28.45 0.1374
2016-02-12 2015-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 38,123 6,710 7,413
2016-01-05 2015-09-30 13F/A-1 SIMON PPTY GROUP INC NEW COM COM 828806109 31,413 12,751 68.33 5,771 78.67 0.1204
2015-11-10 2015-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 31,413 5,771
2015-08-13 2015-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 18,662 901 5.07 3,230 -7.05 0.0672
2015-05-12 2015-03-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 17,761 17,761 0.00 3,475 0.0740
2015-02-03 2014-12-31 13F SIMON PPTY GROUP INC NEW COM COM 828806109 0 -16,978 -100.00 0 -100.00
2014-11-10 2014-09-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 16,978 -2,021 -10.64 2,792 -11.62 0.0645
2014-08-12 2014-06-30 13F SIMON PPTY GROUP INC NEW COM COM 828806109 18,999 18,999 3,159 0.0673
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.