Snapshot date: 2026-10-18 · Built: 2026-10-19T15:40:27+00:00 · Publication status: REVIEW

COMPANY RESEARCH

SIMON PROPERTY GROUP INC.

SPG · United States · Real Estate

INSIDER SIGNAL

Insider activity score：89.7 / 100

11 insiders · 22 purchase events · $994k net purchases

US #3 · United States #3

WHY THIS SIGNAL?

Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35

How many distinct insiders bought in the cluster

Purchase size+17.2 / 25

Purchase value relative to company size and liquidity

Role+0.0 / 20

The seniority and relevance of participating insiders

Recency+7.4 / 10

How recently the purchases occurred

Conviction+10.0 / 10

How clearly buying stands out from other activity

What is holding the score back?

⚠ Insider role contributes less on the current role scale
✓ Broad buyer cluster · 4+ distinct filers
✓ Recent activity · latest purchase 2026-09-30

The role contribution follows the US model's seniority ladder.

BUYING PROFILE

22 events · 11 insiders · 180d

Cluster 100%Repeat 0%Independent 0%Large 0%

Percentages are mutually exclusive and sum to 100%.

Buying concentration

21%

Largest buyer：LEIBOWITZ REUBEN S · 211k USD
Gross qualified purchase transaction-line value：994k USD

The headline $ total is net buying for the screen; this module uses gross qualified purchase transaction-line values in the filing currency, so the amounts can differ. The current 15-day buyer-breadth input counts distinct buyers; value concentration is disclosed separately here.

This is a ranking under the current US screening rules—not a probability of gain, return forecast, or buy recommendation.

Key purchase quotes (filing currency)

Filer	Price per unit	Trade date
LEIBOWITZ REUBEN S	202.78 USD	Sep 30, 2026
GLASSCOCK LARRY C	202.78 USD	Sep 30, 2026
LEIBOWITZ REUBEN S	223.14–225.03 USD	Jun 30, 2026

Model details

Cluster breakdown (does not change the score)

15-day buyer breadth (count): 11 distinct reported filers
Peak time window: 2026-06-30 to 2026-06-30
Current breadth input: 1.000 (capped at 4+ buyers)
Buyer independence: Not yet measured; related-party fields are not cross-market comparable

What the filings show

🟢 Recent eligible purchase
LEIBOWITZ REUBEN S · 97k USD · Price 202.78 USD · Sep 30, 2026
🟢 PDMR purchase
GLASSCOCK LARRY C · 74k USD · Price 202.78 USD · Sep 30, 2026
🟢 PDMR purchase
LEIBOWITZ REUBEN S · 113k USD · Price 223.14–225.03 USD · Jun 30, 2026
🟡 34 remaining qualified transaction line(s) across 19 disclosure(s)
🔴 15 other transaction line(s) are not counted as discretionary-buying evidence; 0 have zero price

Insider vs stock price

2 purchase day(s), 39 purchase line(s) in the 180-day window.

Daily close (USD)Day with an insider purchaseTwo or more insiders the same day

Markers sit on the closing price of the transaction day. They show when insiders traded, not the price they paid or received. "Since" compares that day's close with the last close shown; it is what happened at this company, not a forecast.

If you had followed the purchase

Each row starts on the first close on or after the day a purchase was made public, the earliest a reader could have acted, and ends on the last close shown above.

Amount put in (USD)

Made public	Insiders	In this stock, now	In the median peer stock, now	Difference
2026-07-01	11	894 −10.6%	897 −10.3%	−3 −0.3 pts
2026-10-01	11	993 −0.7%	994 −0.6%	−1 −0.1 pts

0 of 2 disclosure day(s) ended ahead of the median peer stock.

Close to close, before costs, taxes, dividends and currency moves. The peer is the median of the other stocks on the same exchange for which this site holds prices (1092 here), not an index. This is what happened, not a forecast: across all purchases on this site the typical gap is close to zero.

Insider timeline

11 insiders bought on the same day, 30 Jun: 11 Board member. 11 of them bought again later. The share closed at 223.65 that day and at 199.42 most recently (−10.8%). That week 93 companies across United States disclosed insider purchases, an ordinary week (19 of the last 26).

Tap an item for what it means.

●A purchase: the bigger the dot, the more was bought

Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.

▮Purple band: several insiders bought within 15 days

The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 30 Jun, with 11 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.

Blue line: this share's price, −2.6% over these six months

The closing price of each day, from 204.76 on 2026-04-21 to 199.42 on 2026-10-09. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.

Dashed line: the typical stock on the same exchange, −11.1%

Taken from the 1230 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −2.6%, the typical one −11.1%, 8.5 points ahead. It is not an index and not a comparison within one industry.

▂Grey bars: companies across United States disclosing purchases each week

A taller bar is a week in which more companies disclosed insider purchases. The purple bar is the week of the band above: 93 companies, number 19 of the last 26 weeks. If that week was a peak anyway, buying together is less special than it looks.

1 more insiders traded in the window and are not drawn.

This company: insiders buying per month, last 12 months

1Nov

10Dec

Jan

Feb

Mar

Apr

May

11Jun

Jul

Aug

11Sep

Oct

Darker bars are inside the 180-day window above.

Who traded

Insider	Role	Purchases	Sales	Bought	First purchase	Share price since
Aeppel Glyn	Board member	2	—	99.3k USD	2026-06-30	−10.8%
Cicco Martin J	Board member	2	—	6.4k USD	2026-06-30	−10.8%
GLASSCOCK LARRY C	Board member	2	—	163.1k USD	2026-06-30	−10.8%
Jones Nina P	Board member	2	—	18.9k USD	2026-06-30	−10.8%
LEIBOWITZ REUBEN S	Board member	2	—	210.8k USD	2026-06-30	−10.8%
LEWIS RANDALL J	Board member	2	—	27.0k USD	2026-06-30	−10.8%
RODKIN GARY M	Board member	2	—	104.2k USD	2026-06-30	−10.8%
Roe Peggy	Board member	2	—	37.7k USD	2026-06-30	−10.8%
SELIG STEFAN M	Board member	2	—	91.3k USD	2026-06-30	−10.8%
Smith Daniel C.	Board member	2	—	154.0k USD	2026-06-30	−10.8%
STEWART MARTA R	Board member	2	—	81.0k USD	2026-06-30	−10.8%

Why this score? · Model details

Priority = 100 × Σ(fixed weight × 0–1 rule-based input)

Factor	Weight	This company input	Point contribution
15-day buyer breadth (count)	35%	1.000	35.0
Qualified-buy size	25%	0.690	17.2
Role informativeness (inverted)	20%	1.000	20.0
Recency	10%	0.741	7.4
Buy/sell conviction	10%	1.000	10.0

This is a heuristic ordering under the current rules, not a calibrated return forecast. It explains why candidates rank differently; the public-filing evidence and data limits are shown below.

BULL VS BEAR

Two readings of this buying

The same filings, read two ways. Each line is a fact stored for this company with the number behind it, and appears only when that number crosses a fixed threshold. Neither side is a forecast and no winner is declared.

Where the evidence comes from

Independent evidence does not object: the purchases themselves carry bull lines (several insiders together, buyer's past purchases beat the benchmark); share price and trading, short sellers were checked and none crosses a bear threshold. No data is held for: company results, company actions.

The insider purchases themselvesBullseveral insiders together, buyer's past purchases beat the benchmark8 checked, under the threshold
Share price and trading2 checked, under the threshold
Short sellers2 checked, under the threshold
Company results2 missing
Company actionsno data held

Bull case · the buying is informative

11 insiders bought on the same day (2026-06-30). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.
The 8 earlier purchases by LEWIS RANDALL J beat S&P 500 ETF (SPY adjusted close) by a median 3.3% over the following 60 trading days.

Bear case · discount it

Nothing held here argues against the buying. That is not the same as nothing existing: see the missing evidence below.

Evidence still missing

The company's market value is not captured, so the purchases cannot be stated as a share of the business or of its trading volume.
No earnings, margin or cash-flow figures are captured for this company. The latest annual and interim reports are where to check whether the business is improving or deteriorating.

Checked and under the threshold: 12, 2 close to it

EitherNet purchases of $994k in 180 days. Bull from $1.0M, bear when all purchases total under $25k. close to the threshold
BearFINRA short interest on 2026-09-30 equals 7.7 days of average trading volume, up 1.4% from the previous report. Counted for the bear side from 10 days, or from 10% of the shares outstanding. close to the threshold
Either11 insiders bought in the last 180 days and 10 in the 180 days before. Bull when the number at least doubles and rises by two; bear when at least two bought before and no more buy now.
BearThe largest buyer accounts for 21% of the value bought. Counted for the bear side from 80%.
BearNo insider sale is recorded in the same 180 days.
EitherThe latest purchase is 18 days old. Bull up to 14 days, bear from 90.
BearThe share price changed −0.57% over six months (three months −9.1%, one month −2.6%) and stands 16% below its 52-week high. Counted for the bear side from a fall of 20%.
BearOver three months the share price changed −9.1% and the median of 62 Real Estate companies changed −15%: ahead by 6 points. Counted for the bear side from 20 points behind.
BearNone of the 11 purchase filings ticks Form 4's 10b5-1 box.
BearOver the last 5 trading days to 2026-10-16, 34% of this stock's off-exchange volume was sold short; over the 60 days before, 55%. The market's median is 50%. This is trading volume, not a position: a market maker who sells short and covers the same day is counted, so about half of all volume is short on an ordinary day. It is shown for comparison and counts for neither side.
Bull11 of 22 purchase filings state the shares held before and after. The largest addition to an existing holding took it from 20,760 to 21,016 shares (+1.2%). Counted for the bull side from +100%, for the bear side below +1%.
BearNo insider filing in the last 180 days opened a hedge on this stock.

Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.

Signal history

89.7 / 100

Latest recorded score

↑ +5.9 ptssince the first recorded snapshot on 2026-10-09; 9 calendar days observed

Recorded snapshots: 7
First snapshot: 2026-10-09

There is not yet a 30-calendar-day comparison; earlier scores are not reconstructed. These are raw signal scores saved when each full scoring run completed. They describe changes in research ranking, not price performance or returns.

Why did it change?

Less than 30 days of comparable history is available, so factor movement is not yet decomposed.

Signal score history

Fixed 0–100 scale; dates are spaced by calendar time.

Recent recorded points

Oct 9, 202683.8
Oct 13, 202690.4
Oct 14, 202690.3
Oct 15, 202690.1
Oct 18, 202689.7

View all recorded scores

Snapshot date	Signal score
2026-10-09	83.8
2026-10-12	90.5
2026-10-13	90.4
2026-10-14	90.3
2026-10-15	90.1
2026-10-16	89.9
2026-10-18	89.7

Sector context

Real Estate

Buying breadth: 6.2% (16 / 258 issuers)
Sector rank: #5 / 13

This is sector-level research context. It does not affect the Insider Signal or ranking.

View US sector research →

Insider profile outcomes

Historical performance following insider filings. The company role is translated below each name while preserving the original title.

Excess return = stock return − S&P 500 ETF (SPY adjusted close) return over the same period.
Hit rate = completed events with positive excess return ÷ total completed events.
Price coverage = valid point-in-time prices ÷ events mature enough for that period.
Returns start on the first shared trading session on or after publication.
Small-sample rule: n<5 is shown for transparency and is not scored.

Events are disclosure-level observations; related disclosures published on the same date may share a return path and may not be statistically independent. This research enrichment does not affect the insider score or ranking.

LEWIS RANDALL JDirector8 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	9Developing evidence	100.0% (9/9)	11.1% (1/9)	-1.9%	-2.0%	-7.3%
20D	8Developing evidence	100.0% (8/8)	37.5% (3/8)	-2.2%	-1.7%	-9.4%
60D	8Developing evidence	100.0% (8/8)	62.5% (5/8)	+3.3%	+0.4%	-14.2%
120D	7Developing evidence	100.0% (7/7)	57.1% (4/7)	+1.3%	+2.5%	-10.9%

First purchase in 12M

0/8

Large purchase ≥ $100k

2/9

Cluster buying · 15D

7/9

Buying the dip · ≥20% below prior 52W high

0/9

Routine / opportunistic

Not classifiable

STEWART MARTA RDirector7 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	8Developing evidence	100.0% (8/8)	12.5% (1/8)	-1.9%	-2.2%	-7.3%
20D	7Developing evidence	100.0% (7/7)	42.9% (3/7)	-2.0%	-1.1%	-9.4%
60D	7Developing evidence	100.0% (7/7)	57.1% (4/7)	+0.6%	-1.5%	-14.2%
120D	6Developing evidence	100.0% (6/6)	66.7% (4/6)	+2.9%	+2.7%	-10.9%

First purchase in 12M

0/7

Large purchase ≥ $100k

0/8

Cluster buying · 15D

7/8

Buying the dip · ≥20% below prior 52W high

0/8

Routine / opportunistic

Not classifiable

Aeppel GlynDirector6 completed 20D event(s)

Period	Completed events	Price coverage	Hit rate	Median excess return	Average excess return	Worst excess return
5D	7Developing evidence	100.0% (7/7)	0.0% (0/7)	-1.9%	-2.7%	-7.3%
20D	6Developing evidence	100.0% (6/6)	33.3% (2/6)	-2.2%	-2.1%	-9.4%
60D	6Developing evidence	100.0% (6/6)	50.0% (3/6)	-0.2%	-1.9%	-14.2%
120D	5Developing evidence	100.0% (5/5)	60.0% (3/5)	+1.3%	+1.2%	-10.9%

First purchase in 12M

0/6

Large purchase ≥ $100k

0/7

Cluster buying · 15D

7/7

Buying the dip · ≥20% below prior 52W high

0/7

Routine / opportunistic

Not classifiable

Signal outcomes

Calculated from immutable US ranking snapshots; excess return is stock return minus SPY return. Newly saved snapshots remain pending until each forward horizon matures. This never affects the US score.

Horizon	Status	Result
5D	Awaiting maturity	—
20D	Awaiting maturity	—
60D	Awaiting maturity	—
120D	Awaiting maturity	—

Market context

PRICE PERFORMANCE

-2.6%

-9.1%

-0.6%

12M

+11.9%

VOLATILITY & LIQUIDITY

Volatility: 22.9%
Beta: —
Avg daily volume: $256.7M

VALUATION

Market cap: —
P/E: —

FUNDAMENTALS

Profit margin: —
ROE: —
Industry: —

Prices to 11 Oct 2026: OpenBB/yfinance; volume from price cache (yfinance). It does not affect the insider score or rank.

Insiders' buying price vs the latest close

The latest close in the price history is more than a week old.

Buying size vs market trading

Complete price and volume history is not yet available.

Market-data coverage: 0 verified sessions · Latest session: — · Ratio status: Unavailable

Traded value is estimated as close × shares traded, in major currency units. Includes disclosed qualifying purchases; disclosures may lag. Contractual or planned acquisitions are not necessarily discretionary. Ratios describe relative trading size, not market participation or score contributions.

Regulatory filings

Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30

Unfold all 67 filings

Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-10-01 · trade date 2026-09-30
Insider filing announcement · published 2026-09-01 · trade date 2026-08-31
Insider filing announcement · published 2026-09-01 · trade date 2026-08-31
Insider filing announcement · published 2026-09-01 · trade date 2026-08-31
Insider filing announcement · published 2026-09-01 · trade date 2026-08-31
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-07-01 · trade date 2026-06-30
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-05-15 · trade date 2026-05-13
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-04-02 · trade date 2026-04-01
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-03-04 · trade date 2026-03-02
Insider filing announcement · published 2026-02-26 · trade date 2026-02-25
Insider filing announcement · published 2026-02-09 · trade date 2026-02-05
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2026-01-05 · trade date 2025-12-31
Insider filing announcement · published 2025-12-16 · trade date 2025-12-15
Insider filing announcement · published 2025-11-18 · trade date 2025-11-18
Insider filing announcement · published 2025-11-18 · trade date 2025-11-17

Results and insider purchases

Results (8-K)	Bought within 5 sessions	Bought within 20 sessions
2026-08-1016:07 ET · after the closeFirst session 2026-08-11	None	None
2026-05-1116:07 ET · after the closeFirst session 2026-05-12	None	None
2026-02-0216:12 ET · after the closeFirst session 2026-02-03	None	None
2025-11-0316:08 ET · after the closeFirst session 2025-11-04	None	1 · $106.3KLEWIS RANDALL J

Results dates are the company's 8-K filings to the SEC under Item 2.02 (results of operations); one filed after the close counts from the next session. Purchases are open-market buys reported on Form 4 (code P), by trade date; a Form 4 can arrive two business days after the trade, so the latest days can still fill in. Facts only; this does not change the score or rank.

Ownership and trading-plan context

Direct / indirect ownership	Direct, Mixed direct / indirect
10b5-1 filing evidence	Not declared in filing field
Evidence retrieved	2026-10-16T22:30:00+00:00

These are accession-level filing fields. Unavailable means the evidence was not fetched or parsed; it is never inferred as “No” and does not adjust the US score.

Filing evidence

These are underlying national-feed records from the 365-day window ending on the saved ranking snapshot. The score uses only the latest 180 days; older qualifying equity purchases remain visible for audit but do not enter the current score. The original filer, role, transaction classification, instrument, price, volume, value and source fields are retained. The first three rows are shown; remaining records can be unfolded for audit. Other transaction types are retained but excluded from the score.

Excluded transactions & classification

34 qualifying purchase disclosure(s) · 51 transaction line(s)

Dec 15, 2025Open market purchase

LEWIS RANDALL J · Director

Common Stock · 545.0 shares × 183.96 USD · 100258.2 USD

Open filing

Nov 18, 2025Open market purchase

LEWIS RANDALL J · Director

Common Stock · 588.0 shares × 180.8 USD · 106310.40000000001 USD

Open filing

Dec 31, 2025Open market purchase

STEWART MARTA R · Director

Common Stock · 192.0 shares × 186.0 USD · 35712.0 USD

Open filing

Unfold all 48 remaining filing row(s)

Transaction date	Published	Filer	Role	Transaction	Instrument	Price (local currency)	Quote currency	Volume	Reported value (local currency)	Source
2025-12-31	2026-01-05	Smith Daniel C.	Director	Open market purchase	Common Stock	186.0 USD	USD	347.0	64542.0 USD	Open filing
2025-12-31	2026-01-05	SELIG STEFAN M	Director	Open market purchase	Common Stock	186.0 USD	USD	201.0	37386.0 USD	Open filing
2025-12-31	2026-01-05	Roe Peggy	Director	Open market purchase	Common Stock	186.0 USD	USD	78.0	14508.0 USD	Open filing
2025-12-31	2026-01-05	RODKIN GARY M	Director	Open market purchase	Common Stock	186.0 USD	USD	226.0	42036.0 USD	Open filing
2025-12-31	2026-01-05	LEWIS RANDALL J	Director	Open market purchase	Common Stock	186.0 USD	USD	54.0	10044.0 USD	Open filing
2025-12-31	2026-01-05	LEIBOWITZ REUBEN S	Director	Open market purchase	Common Stock	186.0 USD	USD	480.0	89280.0 USD	Open filing
2025-12-31	2026-01-05	Jones Nina P	Director	Open market purchase	Common Stock	186.0 USD	USD	35.0	6510.0 USD	Open filing
2025-12-31	2026-01-05	GLASSCOCK LARRY C	Director	Open market purchase	Common Stock	186.0 USD	USD	363.0	67518.0 USD	Open filing
2025-12-31	2026-01-05	Aeppel Glyn	Director	Open market purchase	Common Stock	186.0 USD	USD	216.0	40176.0 USD	Open filing
2026-06-30	2026-07-01	SELIG STEFAN M	Director	Open market purchase	Common Stock	224.01 USD	USD	33.0	7392.33 USD	Open filing
2026-06-30	2026-07-01	SELIG STEFAN M	Director	Open market purchase	Common Stock	223.14 USD	USD	187.0	41727.18 USD	Open filing
2026-06-30	2026-07-01	Roe Peggy	Director	Open market purchase	Common Stock	223.31 USD	USD	3.0	669.9300000000001 USD	Open filing
2026-06-30	2026-07-01	Roe Peggy	Director	Open market purchase	Common Stock	223.14 USD	USD	80.0	17851.199999999997 USD	Open filing
2026-06-30	2026-07-01	Roe Peggy	Director	Open market purchase	Common Stock	223.27 USD	USD	6.0	1339.6200000000001 USD	Open filing
2026-06-30	2026-07-01	LEIBOWITZ REUBEN S	Director	Open market purchase	Common Stock	223.14 USD	USD	430.0	95950.2 USD	Open filing
2026-06-30	2026-07-01	LEIBOWITZ REUBEN S	Director	Open market purchase	Common Stock	223.94 USD	USD	25.0	5598.5 USD	Open filing
2026-06-30	2026-07-01	LEIBOWITZ REUBEN S	Director	Open market purchase	Common Stock	225.03 USD	USD	53.0	11926.59 USD	Open filing
2026-06-30	2026-07-01	GLASSCOCK LARRY C	Director	Open market purchase	Common Stock	223.14 USD	USD	330.0	73636.2 USD	Open filing
2026-06-30	2026-07-01	GLASSCOCK LARRY C	Director	Open market purchase	Common Stock	223.1 USD	USD	13.0	2900.2999999999997 USD	Open filing
2026-06-30	2026-07-01	GLASSCOCK LARRY C	Director	Open market purchase	Common Stock	224.92 USD	USD	54.0	12145.679999999998 USD	Open filing
2026-06-30	2026-07-01	Cicco Martin J	Director	Open market purchase	Common Stock	223.37 USD	USD	2.0	446.74 USD	Open filing
2026-06-30	2026-07-01	Cicco Martin J	Director	Open market purchase	Common Stock	223.14 USD	USD	13.0	2900.8199999999997 USD	Open filing
2026-06-30	2026-07-01	STEWART MARTA R	Director	Open market purchase	Common Stock	223.14 USD	USD	179.0	39942.06 USD	Open filing
2026-06-30	2026-07-01	STEWART MARTA R	Director	Open market purchase	Common Stock	224.07 USD	USD	2.0	448.14 USD	Open filing
2026-06-30	2026-07-01	STEWART MARTA R	Director	Open market purchase	Common Stock	224.1 USD	USD	1.0	224.1 USD	Open filing
2026-06-30	2026-07-01	Smith Daniel C.	Director	Open market purchase	Common Stock	223.32 USD	USD	11.0	2456.52 USD	Open filing
2026-06-30	2026-07-01	Smith Daniel C.	Director	Open market purchase	Common Stock	224.41 USD	USD	47.0	10547.27 USD	Open filing
2026-06-30	2026-07-01	Smith Daniel C.	Director	Open market purchase	Common Stock	223.14 USD	USD	314.0	70065.95999999999 USD	Open filing
2026-06-30	2026-07-01	RODKIN GARY M	Director	Open market purchase	Common Stock	224.31 USD	USD	43.0	9645.33 USD	Open filing
2026-06-30	2026-07-01	RODKIN GARY M	Director	Open market purchase	Common Stock	223.25 USD	USD	4.0	893.0 USD	Open filing
2026-06-30	2026-07-01	RODKIN GARY M	Director	Open market purchase	Common Stock	223.14 USD	USD	209.0	46636.259999999995 USD	Open filing
2026-06-30	2026-07-01	LEWIS RANDALL J	Director	Open market purchase	Common Stock	223.14 USD	USD	58.0	12942.119999999999 USD	Open filing
2026-06-30	2026-07-01	LEWIS RANDALL J	Director	Open market purchase	Common Stock	223.51 USD	USD	4.0	894.04 USD	Open filing
2026-06-30	2026-07-01	Jones Nina P	Director	Open market purchase	Common Stock	223.49 USD	USD	2.0	446.98 USD	Open filing
2026-06-30	2026-07-01	Jones Nina P	Director	Open market purchase	Common Stock	223.14 USD	USD	41.0	9148.74 USD	Open filing
2026-06-30	2026-07-01	Aeppel Glyn	Director	Open market purchase	Common Stock	223.14 USD	USD	199.0	44404.86 USD	Open filing
2026-06-30	2026-07-01	Aeppel Glyn	Director	Open market purchase	Common Stock	224.33 USD	USD	44.0	9870.52 USD	Open filing
2026-09-30	2026-10-01	Aeppel Glyn	Director	Open market purchase	Common Stock	202.78 USD	USD	222	45017.16 USD	Open filing
2026-09-30	2026-10-01	Cicco Martin J	Director	Open market purchase	Common Stock	202.78 USD	USD	15	3041.7 USD	Open filing
2026-09-30	2026-10-01	GLASSCOCK LARRY C	Director	Open market purchase	Common Stock	202.78 USD	USD	367	74420.26 USD	Open filing
2026-09-30	2026-10-01	Jones Nina P	Director	Open market purchase	Common Stock	202.78 USD	USD	46	9327.88 USD	Open filing
2026-09-30	2026-10-01	LEIBOWITZ REUBEN S	Director	Open market purchase	Common Stock	202.78 USD	USD	480	97334.4 USD	Open filing
2026-09-30	2026-10-01	LEWIS RANDALL J	Director	Open market purchase	Common Stock	202.78 USD	USD	65	13180.7 USD	Open filing
2026-09-30	2026-10-01	RODKIN GARY M	Director	Open market purchase	Common Stock	202.78 USD	USD	232	47044.96 USD	Open filing
2026-09-30	2026-10-01	Roe Peggy	Director	Open market purchase	Common Stock	202.78 USD	USD	88	17844.64 USD	Open filing
2026-09-30	2026-10-01	SELIG STEFAN M	Director	Open market purchase	Common Stock	202.78 USD	USD	208	42178.24 USD	Open filing
2026-09-30	2026-10-01	STEWART MARTA R	Director	Open market purchase	Common Stock	202.78 USD	USD	199	40353.22 USD	Open filing
2026-09-30	2026-10-01	Smith Daniel C.	Director	Open market purchase	Common Stock	202.78 USD	USD	350	70973.0 USD	Open filing

Showing 51 of 51 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.

Other disclosed transactions · excluded from score

View 42 other transaction(s)

Nov 17, 2025Bona fide gift

SOKOLOV RICHARD S · Director

Common Stock · 1985.0 shares × 0.0 USD · 0.0 USD

Open filing

Mar 2, 2026Exercise of derivative security

SIMON DAVID · CEO/CHAIRMAN/PRESIDENT

Common Stock · 20619.0 shares × — · 0.0 USD

Open filing

Mar 2, 2026Exercise of derivative security

Simon Eli · EVP / CHIEF OPERATING OFFICER

Common Stock · 3093.0 shares × — · 0.0 USD

Open filing

Unfold all 39 remaining filing row(s)

Transaction date	Published	Filer	Role	Transaction	Instrument	Price (local currency)	Quote currency	Volume	Reported value (local currency)	Source
2026-03-02	2026-03-04	Simon Eli	EVP / CHIEF OPERATING OFFICER	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	1263.0	257462.55 USD	Open filing
2026-03-02	2026-03-04	RULLI JOHN	CHIEF ADMINISTRATIVE OFFICER	Exercise of derivative security	Common Stock	—	USD	4124.0	0.0 USD	Open filing
2026-03-02	2026-03-04	RULLI JOHN	CHIEF ADMINISTRATIVE OFFICER	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	1191.0	242785.35 USD	Open filing
2026-03-02	2026-03-04	Reuille Adam	SVP & CHIEF ACCOUNTING OFFICER	Exercise of derivative security	Common Stock	—	USD	1031.0	0.0 USD	Open filing
2026-03-02	2026-03-04	Reuille Adam	SVP & CHIEF ACCOUNTING OFFICER	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	336.0	68493.59999999999 USD	Open filing
2026-03-02	2026-03-04	McDade Brian J.	EVP/CFO	Exercise of derivative security	Common Stock	—	USD	5155.0	0.0 USD	Open filing
2026-03-02	2026-03-04	Kelly Kevin M	ASST. GENERAL COUNSEL/SEC.	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	174.0	35469.9 USD	Open filing
2026-03-02	2026-03-04	Kelly Kevin M	ASST. GENERAL COUNSEL/SEC.	Exercise of derivative security	Common Stock	—	USD	516.0	0.0 USD	Open filing
2026-03-02	2026-03-04	Frey Donald G	EVP, TREASURER	Exercise of derivative security	Common Stock	—	USD	1031.0	0.0 USD	Open filing
2026-03-02	2026-03-04	Frey Donald G	EVP, TREASURER	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	323.0	65843.55 USD	Open filing
2026-03-02	2026-03-04	FIVEL STEVEN E	GENERAL COUNSEL	Shares withheld for tax or exercise price	Common Stock	203.85 USD	USD	1024.0	208742.4 USD	Open filing
2026-03-02	2026-03-04	FIVEL STEVEN E	GENERAL COUNSEL	Exercise of derivative security	Common Stock	—	USD	4124.0	0.0 USD	Open filing
2026-02-25	2026-02-26	RULLI JOHN	CHIEF ADMINISTRATIVE OFFICER	Open market sale	Common Stock	200.88 USD	USD	10000.0	2008800.0 USD	Open filing
2026-02-05	2026-02-09	Cicco Martin J	Director	Grant or award	Common Stock	—	USD	299.0	0.0 USD	Open filing
2026-05-13	2026-05-15	Roe Peggy	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	STEWART MARTA R	Director	Grant or award	Common Stock	—	USD	1122.0	0.0 USD	Open filing
2026-05-13	2026-05-15	LEIBOWITZ REUBEN S	Director	Grant or award	Common Stock	—	USD	1159.0	0.0 USD	Open filing
2026-05-13	2026-05-15	Cicco Martin J	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	Smith Daniel C.	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	SELIG STEFAN M	Director	Grant or award	Common Stock	—	USD	1109.0	0.0 USD	Open filing
2026-05-13	2026-05-15	RODKIN GARY M	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	LEWIS RANDALL J	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	Jones Nina P	Director	Grant or award	Common Stock	—	USD	1073.0	0.0 USD	Open filing
2026-05-13	2026-05-15	GLASSCOCK LARRY C	Director	Grant or award	Common Stock	—	USD	1233.0	0.0 USD	Open filing
2026-05-13	2026-05-15	Aeppel Glyn	Director	Grant or award	Common Stock	—	USD	1122.0	0.0 USD	Open filing
2026-04-01	2026-04-02	RULLI JOHN	CHIEF ADMINISTRATIVE OFFICER	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	1156.0	215628.68 USD	Open filing
2026-04-01	2026-04-02	Reuille Adam	SVP & CHIEF ACCOUNTING OFFICER	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	391.0	72933.23 USD	Open filing
2026-04-01	2026-04-02	Kelly Kevin M	ASST. GENERAL COUNSEL/SEC.	Grant or award	Common Stock	—	USD	1361.0	0.0 USD	Open filing
2026-04-01	2026-04-02	Kelly Kevin M	ASST. GENERAL COUNSEL/SEC.	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	478.0	89161.34 USD	Open filing
2026-04-01	2026-04-02	Jackson Matthew A	SVP, ASSISTANT TREASURER	Grant or award	Common Stock	—	USD	1361.0	0.0 USD	Open filing
2026-04-01	2026-04-02	Jackson Matthew A	SVP, ASSISTANT TREASURER	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	447.0	83378.91 USD	Open filing
2026-04-01	2026-04-02	Frey Donald G	EVP, TREASURER	Grant or award	Common Stock	—	USD	2721.0	0.0 USD	Open filing
2026-04-01	2026-04-02	Frey Donald G	EVP, TREASURER	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	1312.0	244727.36000000002 USD	Open filing
2026-04-01	2026-04-02	FIVEL STEVEN E	GENERAL COUNSEL	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	1048.0	195483.44 USD	Open filing
2026-04-01	2026-04-02	Simon Eli	CEO/PRESIDENT/COO	Shares withheld for tax or exercise price	Common Stock	186.53 USD	USD	2030.0	378655.9 USD	Open filing
2026-08-31	2026-09-01	Jackson Matthew A	SVP, ASSISTANT TREASURER	Shares withheld for tax or exercise price	Common Stock	214.56 USD	USD	250.0	53640.0 USD	Open filing
2026-08-31	2026-09-01	SOKOLOV RICHARD S	Director	Shares withheld for tax or exercise price	Common Stock	214.56 USD	USD	2306.0	494775.36 USD	Open filing
2026-08-31	2026-09-01	Simon Eli	CEO/PRESIDENT/COO	Shares withheld for tax or exercise price	Common Stock	214.56 USD	USD	5821.0	1248953.76 USD	Open filing
2026-08-31	2026-09-01	Kelly Kevin M	ASST. GENERAL COUNSEL/SEC.	Shares withheld for tax or exercise price	Common Stock	214.56 USD	USD	1434.0	307679.04 USD	Open filing

Showing 42 of 42 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.

Snapshot & identity

Snapshot date: 2026-10-18
Ticker: SPG
ISIN: —
Sector: Real Estate
Industry: —

Company logos by Parqet

How to read Form 4 transaction codes

Code	Interpretation	Screen treatment
P	Open-market / private purchase	Buy evidence when the security is qualifying equity
S	Sale	Sell evidence when the security is qualifying equity
A	Grant / award	Context only
F	Tax-related withholding	Context only
M	Option exercise	Context only
G	Gift	Context only
J / L	Other / non-directional	Context only

P/S rows for options, warrants, compensation units and debt remain visible for audit but are excluded from equity scores and quotes.

SIMON PROPERTY GROUP INC.

WHY THIS SIGNAL?

Score anatomy

What is holding the score back?

BUYING PROFILE

Buying concentration

Key purchase quotes (filing currency)

Cluster breakdown (does not change the score)

What the filings show

Insider vs stock price

If you had followed the purchase

Insider timeline

This company: insiders buying per month, last 12 months

Who traded

Two readings of this buying

Where the evidence comes from

Bull case · the buying is informative

Bear case · discount it

Evidence still missing

Signal score history

Recent recorded points

Sector context

Insider profile outcomes

Signal outcomes

Market context

PRICE PERFORMANCE

VOLATILITY & LIQUIDITY

VALUATION

FUNDAMENTALS

Insiders' buying price vs the latest close

Buying size vs market trading

Regulatory filings

Results and insider purchases

Ownership and trading-plan context

Filing evidence

Other disclosed transactions · excluded from score

Snapshot & identity

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How to read Form 4 transaction codes