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SEC Form 4
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© 2026 Insider Trade Flow. Not financial advice. All data sourced from public SEC filings, 13F reports, and Polymarket.
14 Active Clusters

Cluster Buying
Signals

When multiple insiders buy the same stock within a short window, it often signals exceptional confidence. Track real-time cluster activity across all sectors.

14
Buy Clusters
0
Sell Clusters
0
Strong Signals
$138.3M
Total Volume
Period:
7 Days30 Days90 Days
Type:
Buy ClustersSell ClustersAll
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTDTSM
Unknown·Same day·Oct 7, 2026 - Oct 7, 2026
29
Insiders
$117.7K
Volume
Moderate Signal
CFO Participating
Wei Che-Chia
Executive
$11.4K
144 shares

What is Cluster Buying?

Cluster buying occurs when multiple corporate insiders purchase shares of their company within a short time window. This pattern is considered one of the strongest signals of insider confidence.

When three or more executives independently decide to buy shares around the same time, it suggests they collectively believe the stock is undervalued. Research shows that cluster buys with CEO or CFO participation tend to have even stronger predictive value.

Signal Strength Scoring

  • +10 points3 or more insiders participating
  • +5 pointsCEO participating
  • +5 pointsCFO participating
  • +5 pointsAverage purchase over $200K
  • -5 pointsIncludes 10b5-1 planned trades

Get Cluster Buy Alerts

Be the first to know when multiple insiders start buying. Set up real-time alerts for cluster activity.

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Mii Yuh-Jier
EVP and Co-COO
$5.4K
68 shares
Chin Yung-Pei
EVP and Co-COO
$5.3K
67 shares
Hou Yung-Chin
SVP and Deputy Co-COO
$4.8K
60 shares
Zhang Kevin Xiaoqiang
SVP and Deputy Co-COO
$4.7K
59 shares
Wu Shien-Yang
SVP
$4.2K
53 shares
+23 more insiders
View TSM Company Page
Rapport Therapeutics, Inc.RAPP
Unknown·1 day·Oct 21, 2026 - Oct 22, 2026
4
Insiders
$1.3M
Volume
Moderate Signal
CFO Participating
PAUL STEVEN M
Executive
$974.3K
35,714 shares
Ignelzi Troy A.
Chief Financial Officer
$143.6K
5,500 shares
Young Wendy B.
Executive
$100.0K
3,789 shares
Silva Paul M
Executive
$99.6K
3,680 shares
View RAPP Company Page
Bluerock Private Real Estate FundBPRE
Unknown·23 days·Sep 28, 2026 - Oct 21, 2026
3
Insiders
$26.2M
Volume
Moderate Signal
CEO Participating
KAMFAR RAMIN
Executive
$26.1M
2,044,981 shares
Ruddy Jordan B.
President
$129.3K
10,340 shares
MacDonald Ryan S
Executive
$1.5K
120 shares
View BPRE Company Page
NXG NextGen Infrastructure Income FundNXG
Unknown·4 days·Oct 19, 2026 - Oct 23, 2026
3
Insiders
$525.6K
Volume
Moderate Signal
CFO Participating
Swank Jerry V
See Remarks
$439.5K
10,000 shares
Sunderland Todd
Executive
$46.5K
1,000 shares
Nelson Blake
CFO & Treasurer
$39.6K
900 shares
View NXG Company Page
Fundrise Real Estate Interval Fund, LLCNONE
Unknown·23 days·Sep 28, 2026 - Oct 21, 2026
15
Insiders
$28.3M
Volume
Moderate Signal
Abu Dhabi Investment Authority
Executive
$22.4M
955,608.71 shares
SENEFF JAMES M JR
Executive
$5.0M
206,100.58 shares
SELTER ERIC JAY
Executive
$500.0K
48,923.68 shares
Williams Brian S
See Remarks
$310.9K
13,129.5 shares
TEACHERS INSURANCE & ANNUITY ASSOCIATION OF AMERICA
Executive
$99.0K
10,186 shares
Comer Wynne Richards
Executive
$22.4K
955.6 shares
+9 more insiders
View NONE Company Page
Starwood Real Estate Income Trust, Inc.N/A
Unknown·15 days·Sep 30, 2026 - Oct 15, 2026
4
Insiders
$78.0M
Volume
Moderate Signal
Manufacturers Life Reinsurance Ltd
Executive
$40.0M
2,442,086.81 shares
Manulife (International) Ltd
Executive
$26.0M
1,476,118.17 shares
Manufacturers Life Insurance Co (Bermuda Branch)
Executive
$12.0M
747,531.42 shares
Buffington Mark
Executive
$50.0K
1,437 shares
View N/A Company Page
Presurance Holdings, Inc.PRHI
Unknown·Same day·Sep 30, 2026 - Sep 30, 2026
5
Insiders
$248.9K
Volume
Moderate Signal
CEO ParticipatingCFO Participating
SARAFA JOSEPH D
Executive
$74.2K
11,000 shares
RONEY BRIAN J
Chief Executive Officer
$50.6K
7,500 shares
O'Hanlon Isolde
Executive
$48.9K
7,250 shares
Smith James Grant
Executive
$48.9K
7,250 shares
MELOCHE HAROLD J
CFO, Treasurer
$26.1K
4,100 shares
View PRHI Company Page
Terrestrial Energy Inc. /DE/IMSR
Unknown·5 days·Oct 9, 2026 - Oct 14, 2026
3
Insiders
$112.3K
Volume
Weak Signal
Irish Simon
Executive
$50.8K
16,900 shares
BUCKMAN FREDERICK W
Executive
$39.3K
12,000 shares
Pardee Charles G
Executive
$22.1K
7,500 shares
View IMSR Company Page
FULLER H B COFUL
Unknown·18 days·Sep 28, 2026 - Oct 16, 2026
6
Insiders
$924.1K
Volume
Weak Signal
BAILLY R JEFFREY
Executive
$500.0K
10,000 shares
FLORNESS DANIEL L
Executive
$100.2K
2,030 shares
Zaheer Srilata
Executive
$100.1K
2,040 shares
Lauber Charles T
Executive
$100.0K
2,005 shares
HANDLEY THOMAS W
Executive
$98.8K
2,000 shares
Malik Muhammad Shahbaz
Senior VP, BAS
$25.0K
478.66 shares
View FUL Company Page
CI&T IncCINT
Unknown·Within 2 weeks·Sep 29, 2026 - Oct 9, 2026
3
Insiders
$91.4K
Volume
Weak Signal
Martins Fernando Matt Borges
Executive
$62.8K
20,000 shares
Gon Cesar Nivaldo
Executive
$20.1K
6,684 shares
Guicardi Neto Bruno
Pres. of N. Am. /Europe Ops
$8.4K
2,825 shares
View CINT Company Page
Accelevation Holdings Corp.ACCV
Unknown·Same day·Oct 1, 2026 - Oct 1, 2026
4
Insiders
$441.0K
Volume
Weak Signal
JONES GINGER M
Executive
$180.0K
10,000 shares
Donahue Paul D
Executive
$126.0K
7,000 shares
HECKES HOWARD C
Executive
$90.0K
5,000 shares
Jewell Brent C
Chief Operating Officer
$45.0K
2,500 shares
View ACCV Company Page
HEICO CORPHEI, HEI.A
Unknown·Same day·Oct 8, 2026 - Oct 8, 2026
8
Insiders
$1.4M
Volume
Weak Signal
Fine Carol F.
Executive
$175.1K
795 shares
SCHRIESHEIM ALAN
Executive
$175.1K
795 shares
HENRIQUES ADOLFO
Executive
$175.1K
795 shares
MENDELSON VICTOR H
Executive
$175.1K
795 shares
CHERUVATATH NANDAKUMAR
Executive
$175.1K
795 shares
CULLIGAN THOMAS M
Executive
$175.1K
795 shares
+2 more insiders
View HEI, HEI.A Company Page
SIMON PROPERTY GROUP INC.SPG
Unknown·Same day·Sep 30, 2026 - Sep 30, 2026
10
Insiders
$420.4K
Volume
Weak Signal
LEIBOWITZ REUBEN S
Executive
$97.3K
480 shares
GLASSCOCK LARRY C
Executive
$74.4K
367 shares
Smith Daniel C.
Executive
$71.0K
350 shares
RODKIN GARY M
Executive
$47.0K
232 shares
Aeppel Glyn
Executive
$45.0K
222 shares
SELIG STEFAN M
Executive
$42.2K
208 shares
+4 more insiders
View SPG Company Page
CITY HOLDING COCHCO
Unknown·Same day·Oct 23, 2026 - Oct 23, 2026
4
Insiders
$68.2K
Volume
Weak Signal
FISHER ROBERT D
Executive
$23.5K
165 shares
STRONG-TREISTER DIANE W
Executive
$17.1K
120 shares
Hoyer James A
Executive
$14.2K
100 shares
Reyes Javier A
Executive
$13.5K
95 shares
View CHCO Company Page