Insider Tracker SEC Form 4 insider trades
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SPG

SIMON PROPERTY GROUP INC.

Real Estate Real Estate Investment Trusts Market cap: $65.7B All insider activity → Quote and statistics → Sign in to watch SPG Sign in to set a price alert
53
Insider Score Band below 60

AI score not needed: the AI review runs from a match score of 55.

Research score, not a recommendation.

Total bought$460.7K11 Form 4 purchases
Distinct insiders11open-market buyers
Lead insiderLEIBOWITZ REUBEN SDirector
Cluster window2026-09-30single day · active

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

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same price, one day All 11 purchases were at $202.78 on 2026-09-30. That pattern also occurs in IPO or conversion subscriptions, which are not open-market conviction buying.

Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders
100%
Seniority executive rank of buyers (CEO/CFO/Director)
60%
Commitment purchase size relative to company & holdings
0%
Context buying into stock weakness signals conviction
35%
Timing coordinated purchases within a tight window
100%
Routine-purchase discount × 0.40
Company-type / offering discount × 1.00
Net insider selling penalty − 0

Why are they buying?

AI score not needed: the AI review runs only on clusters with a match score of 55 or more. The filings in the table below are the primary evidence.

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

Loading price history…

Transactions

11 Form 4 trades · 11 insiders Sign in to download CSV
Purchases in this cluster, grouped by insider, largest first
Date Insider Role Shares Price Value Flags Filing
2026-09-30 LEIBOWITZ REUBEN S 26 purchases with a 63-day result · median -0.4% Director 480 $202.78 $97.3K
routine
SEC filing for LEIBOWITZ REUBEN S (opens in a new tab)
2026-09-30 GLASSCOCK LARRY C 24 purchases with a 63-day result · median -0.5% Director 367 $202.78 $74.4K
routine
SEC filing for GLASSCOCK LARRY C (opens in a new tab)
2026-09-30 Smith Daniel C. 24 purchases with a 63-day result · median +0.4% Director 350 $202.78 $71.0K
routine
SEC filing for Smith Daniel C. (opens in a new tab)
2026-09-30 RODKIN GARY M 23 purchases with a 63-day result · median +0.3% Director 232 $202.78 $47.0K
routine
SEC filing for RODKIN GARY M (opens in a new tab)
2026-09-30 Aeppel Glyn 24 purchases with a 63-day result · median +0.4% Director 222 $202.78 $45.0K
routine
SEC filing for Aeppel Glyn (opens in a new tab)
2026-09-30 SELIG STEFAN M 24 purchases with a 63-day result · median +0.4% Director 208 $202.78 $42.2K
routine
SEC filing for SELIG STEFAN M (opens in a new tab)
2026-09-30 STEWART MARTA R 24 purchases with a 63-day result · median +0.4% Director 199 $202.78 $40.4K
routine
SEC filing for STEWART MARTA R (opens in a new tab)
2026-09-30 Roe Peggy 17 purchases with a 63-day result · median +0.3% Director 88 $202.78 $17.8K
routine
SEC filing for Roe Peggy (opens in a new tab)
2026-09-30 LEWIS RANDALL J 15 purchases with a 63-day result · median +0.8% Director 65 $202.78 $13.2K
routine
SEC filing for LEWIS RANDALL J (opens in a new tab)
2026-09-30 Jones Nina P 9 purchases with a 63-day result · median +0.8% Director 46 $202.78 $9.3K
routine
SEC filing for Jones Nina P (opens in a new tab)
2026-09-30 Cicco Martin J history of Cicco Martin J's purchases Director 15 $202.78 $3.0K
routine
SEC filing for Cicco Martin J (opens in a new tab)
Total $460.7K

Other buying runs at SPG

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days –63 days –126 days –

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window Insiders Total Score 21 days63 days126 days Status
2026-06-30 11 $533.1K 39 +0.9%-11.9%– active
2026-03-31 10 $413.0K 51 -3.6%+4.8%-10.2% closed
2025-11-18 → 2025-12-31 10 $614.3K 47 +9.8%+9.2%+13.5% closed
2025-09-30 10 $394.4K 49 -7.1%-1.9%+6.0% closed
2025-06-30 10 $380.1K 51 -3.0%+5.7%+4.2% closed
2025-03-31 11 $415.6K 52 -5.1%-12.1%-7.5% closed
2024-12-30 11 $410.3K 51 +0.1%-2.7%-10.8% closed
2024-09-30 11 $395.7K 50 +0.2%+0.8%-0.8% closed
2024-06-28 11 $381.0K 50 +4.6%+10.9%+12.4% closed
2024-04-01 11 $338.9K 49 -3.4%-6.8%+4.6% closed
2023-12-29 10 $325.2K 49 -7.7%-3.5%-12.7% closed
2023-09-29 11 $359.1K 52 +9.5%+25.8%+24.9% closed