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© 2026 Insider Trade Flow. Not financial advice. All data sourced from public SEC filings, 13F reports, and Polymarket.
33 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.

33
Buy Clusters
0
Sell Clusters
3
Strong Signals
$98.6M
Total Volume
Period:
7 Days30 Days90 Days
Type:
Buy ClustersSell ClustersAll
Amrize LtdAMRZ
Unknown·15 days·Aug 11, 2026 - Aug 26, 2026
8
Insiders
$1.2M
Volume
Strong Signal
CEO ParticipatingCFO Participating
Oran Baris
Chief Financial Officer

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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$283.5K
6,000 shares
Clark Stephen S
Chief People Officer
$248.9K
5,260 shares
Sanche Jacques Wolf
Executive
$186.8K
4,150 shares
Singleton Denise R
Chief Legal Officer & Corp Sec
$154.4K
3,500 shares
Poletti Samuel Jonas
Chief Strategy & M&A Officer
$117.8K
2,510 shares
Hill Jaime
President, Building Materials
$70.7K
1,500 shares
+2 more insiders
View AMRZ Company Page
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTDTSM
Unknown·4 days·Aug 3, 2026 - Aug 7, 2026
30
Insiders
$188.4K
Volume
Strong Signal
CFO Participating
Tien Bor-Zen
VP
$73.1K
1,000 shares
Wei Che-Chia
Executive
$11.1K
152 shares
Mii Yuh-Jier
EVP and Co-COO
$5.3K
72 shares
Chin Yung-Pei
EVP and Co-COO
$5.3K
72 shares
Zhang Kevin Xiaoqiang
SVP and Deputy Co-COO
$4.6K
63 shares
Hou Yung-Chin
SVP and Deputy Co-COO
$4.6K
63 shares
+24 more insiders
View TSM Company Page
Blackstone Private Equity Strategies Fund L.P.NONE
Unknown·25 days·Aug 3, 2026 - Aug 28, 2026
15
Insiders
$67.8M
Volume
Strong Signal
CEO Participating
Qatar Investment Authority
Executive
$27.0M
1,541,914.37 shares
Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust
Executive
$20.8M
7,700,119 shares
French Scot
Executive
$10.0M
400,000 shares
BANKERS LIFE & CASUALTY CO
Executive
$5.0M
492,610.84 shares
Patel Viral
Executive
$2.0M
51,083.61 shares
Neuberger Berman Group LLC
Executive
$2.0M
195,121.95 shares
+9 more insiders
View NONE Company Page
Chicago Atlantic BDC, Inc.LIEN
Unknown·Within 2 weeks·Aug 17, 2026 - Aug 27, 2026
3
Insiders
$751.4K
Volume
Moderate Signal
CEO Participating
Mazarakis John
Executive
$566.4K
60,000 shares
Gordon Scott
Executive
$168.8K
16,948 shares
Colonna Bernardino
President
$16.3K
1,600 shares
View LIEN Company Page
Cardinal Infrastructure Group Inc.CDNL
Unknown·3 days·Aug 14, 2026 - Aug 17, 2026
3
Insiders
$1.1M
Volume
Moderate Signal
CFO Participating
Zelman Ivy
Executive
$500.9K
12,647 shares
Wimmer Richard Bennett
Executive
$293.5K
7,500 shares
Rowe Michael Bruce Jr.
Chief Financial Officer
$255.7K
7,000 shares
View CDNL Company Page
KEMPER CorpKMPR
Unknown·3 days·Aug 10, 2026 - Aug 13, 2026
5
Insiders
$367.9K
Volume
Moderate Signal
CEO ParticipatingCFO Participating
Gorevic Jason N
Executive
$129.6K
5,000 shares
LADERMAN GERALD
Executive
$106.0K
4,000 shares
McAnena Stephen J
President and CEO
$79.5K
3,000 shares
Evans Carl Thomas Jr.
EVP, Sec. & General Counsel
$26.5K
1,000 shares
Camden Bradley T
EVP and CFO
$26.3K
1,000 shares
View KMPR Company Page
Chiron Real Estate Inc.XRN
Unknown·7 days·Aug 10, 2026 - Aug 17, 2026
4
Insiders
$2.6M
Volume
Moderate Signal
Fitzgerald Charles
Executive
$1.5M
41,600 shares
Decker Mark Okey Jr
Executive
$553.8K
15,425 shares
Roseth Aaron Robert
Executive
$495.9K
13,500 shares
Whitlock Matthew Fitzsimmons
Chief Investment Officer
$36.8K
1,000 shares
View XRN Company Page
Ameresco, Inc.AMRC
Unknown·20 days·Aug 7, 2026 - Aug 27, 2026
4
Insiders
$1.6M
Volume
Moderate Signal
Cox Brian C
Executive
$1.1M
44,325 shares
Sakellaris George P
Executive
$294.2K
12,000 shares
Sutton Joseph W.
Executive
$202.4K
9,700 shares
Miller Jennifer L
Executive
$41.9K
2,000 shares
View AMRC Company Page
Compass Diversified HoldingsCODI
Unknown·Within 2 weeks·Aug 12, 2026 - Aug 26, 2026
3
Insiders
$736.3K
Volume
Moderate Signal
Sawtelle Zachary T.
Executive
$386.8K
32,000 shares
Kim Eugene L.
Executive
$229.4K
20,000 shares
Keller Stephen
Executive
$120.1K
10,000 shares
View CODI Company Page
ProFrac Holding Corp.ACDC
Unknown·15 days·Aug 10, 2026 - Aug 25, 2026
3
Insiders
$9.8M
Volume
Moderate Signal
Wilks Dan H.
Executive
$6.5M
1,327,227 shares
THRC Holdings, LP
Executive
$2.9M
607,227 shares
Wilks Matthew
Executive
$401.9K
80,000 shares
View ACDC Company Page
KINGSWAY CorpKWY
Unknown·3 days·Aug 17, 2026 - Aug 20, 2026
3
Insiders
$93.6K
Volume
Moderate Signal
CFO Participating
Horowitz Joshua
Executive
$89.5K
9,103 shares
Fitzgerald John Taylor Maloney
Executive
$2.5K
254 shares
Hansen Kent A
CFO & EVP
$1.6K
158 shares
View KWY Company Page
RESIDEO TECHNOLOGIES, INC.REZI
Unknown·3 days·Aug 14, 2026 - Aug 17, 2026
3
Insiders
$848.1K
Volume
Moderate Signal
Foster Joshua Peter
SVP, GC & Corp Sec
$315.2K
15,317 shares
SURRAN THOMAS A
Executive
$306.9K
15,000 shares
Mehta Amit Ashvin
SVP, Strategy & Business Ops
$226.0K
10,928.4 shares
View REZI Company Page
Proficient Auto Logistics, IncPAL
Unknown·1 day·Aug 13, 2026 - Aug 14, 2026
3
Insiders
$300.2K
Volume
Moderate Signal
CEO ParticipatingCFO Participating
Lal Rohit
Executive
$272.5K
50,000 shares
Wright Bradley J.
Chief Financial Officer
$22.2K
4,000 shares
Rice Amy F.
President and COO
$5.5K
995 shares
View PAL Company Page
Outlook Therapeutics, Inc.OTLK
Unknown·2 days·Aug 12, 2026 - Aug 14, 2026
3
Insiders
$2.5M
Volume
Moderate Signal
Sukhtian Ghiath M.
Executive
$2.5M
5,050,504 shares
KENYON LAWRENCE A
Executive
$0
202,020 shares
Jahr Robert Charles
Executive
$0
303,030 shares
View OTLK Company Page
BlossomHill Therapeutics, Inc.BLSM
Unknown·3 days·Aug 7, 2026 - Aug 10, 2026
3
Insiders
$181.9K
Volume
Moderate Signal
CFO Participating
Schmid John P.
Executive
$96.0K
6,000 shares
Liptak Vincent Paul
General Counsel
$74.7K
4,700 shares
Keyes Jason A
Chief Financial Officer
$11.2K
700 shares
View BLSM Company Page
COASTAL FINANCIAL CORPCCB
Unknown·2 days·Aug 5, 2026 - Aug 7, 2026
3
Insiders
$1.1M
Volume
Moderate Signal
HOVDE STEVEN D
Executive
$658.3K
15,000 shares
Sprink Eric M
Executive
$444.5K
10,000 shares
Adams Christopher D
Executive
$13.1K
290 shares
View CCB Company Page
Tilray Brands, Inc.TLRY
Unknown·3 days·Aug 3, 2026 - Aug 6, 2026
3
Insiders
$69.2K
Volume
Moderate Signal
CFO Participating
Merton Carl A
Chief Financial Officer
$46.2K
10,000 shares
FALTISCHEK DENISE M
Chief Strategy Officer
$11.9K
2,500 shares
Gendel Mitchell
Global General Counsel
$11.1K
2,500 shares
View TLRY Company Page
Horizon Kinetics Holding CorpHKHC
Unknown·Within 2 weeks·Aug 19, 2026 - Aug 27, 2026
4
Insiders
$89.8K
Volume
Weak Signal
CFO Participating
Rosenthal Brent D
Executive
$54.0K
2,000 shares
Brennan Alice C
Executive
$15.9K
600 shares
Roller Daniel J
Executive
$13.3K
500 shares
Herndon Mark
Chief Financial Officer
$6.7K
250 shares
View HKHC Company Page
AIAI Holdings CorpAIAI
Unknown·5 days·Aug 19, 2026 - Aug 24, 2026
3
Insiders
$60.6K
Volume
Weak Signal
CEO Participating
Carlton Charles Craig
Executive
$50.2K
8,250 shares
Furniss Todd Anthony
CEO
$5.6K
1,000 shares
Remy Donald Michael
Executive
$4.8K
905 shares
View AIAI Company Page
Aclarion, Inc.ACON
Unknown·4 days·Aug 13, 2026 - Aug 17, 2026
6
Insiders
$125.7K
Volume
Weak Signal
CFO Participating
Bond Ryan
Executive
$50.1K
21,122 shares
Gould Gregory A
CFO
$24.5K
10,000 shares
Neal David K
Executive
$18.0K
7,500 shares
Williams Amanda M
Executive
$16.0K
5,857 shares
Ness Brent
Executive
$12.1K
5,234 shares
Wesemann William
Executive
$5.0K
2,150 shares
View ACON Company Page
BIOMERICA INCBMRA
Unknown·6 days·Aug 20, 2026 - Aug 26, 2026
5
Insiders
$158.0K
Volume
Weak Signal
Irani Zackary S.
Executive
$50.0K
31,250 shares
Gary M. Huff
Executive
$50.0K
31,250 shares
BARBIERI ALLEN
Executive
$32.0K
20,000 shares
MOATAZEDI DAVID
Executive
$16.0K
10,000 shares
Chin Eric
Executive
$10.0K
6,250 shares
View BMRA Company Page
TEAM INCTISI
Unknown·18 days·Aug 6, 2026 - Aug 24, 2026
4
Insiders
$194.8K
Volume
Weak Signal
Horton Anthony R
Executive
$137.5K
6,000 shares
McGinnis Pamela J.
Executive
$45.8K
2,000 shares
Lederman Evan S.
Executive
$11.5K
500 shares
Stewart Michael David
Executive
$0
1,604,326 shares
View TISI Company Page
MATTHEWS INTERNATIONAL CORPMATW
Unknown·Within 2 weeks·Aug 10, 2026 - Aug 24, 2026
3
Insiders
$298.1K
Volume
Weak Signal
SCHAWK DAVID A
Executive
$118.0K
5,000 shares
Nauman J Michael
Executive
$110.9K
5,000 shares
Richards Aleta W.
Executive
$69.2K
3,000 shares
View MATW Company Page
WILSON BANK HOLDING COnone
Unknown·15 days·Aug 5, 2026 - Aug 20, 2026
3
Insiders
$261.4K
Volume
Weak Signal
CLEMONS JAMES RANDALL
Executive
$248.8K
2,982 shares
COMER JAMES F
Executive
$10.0K
120 shares
RICHERSON HERBERT ELMER
Executive
$2.5K
30 shares
View none Company Page
Burke & Herbert Financial Services Corp.BHRB
Unknown·16 days·Aug 4, 2026 - Aug 20, 2026
3
Insiders
$166.6K
Volume
Weak Signal
Poillon Diane
Executive
$88.4K
1,200 shares
McLaughlin Shawn Patrick
Executive
$73.3K
1,000 shares
WILSON DAVID
Executive
$5.0K
69 shares
View BHRB Company Page
Innventure, Inc.INV
Unknown·Same day·Aug 20, 2026 - Aug 20, 2026
4
Insiders
$807.8K
Volume
Weak Signal
Otworth Michael
Executive
$349.3K
231,000 shares
Donnally James O
Executive
$337.5K
225,000 shares
Haskell Gregory W
Executive
$75.6K
50,000 shares
Brown Bruce
Executive
$45.4K
30,000 shares
View INV Company Page
EDAP TMS SAEDAP
Unknown·Same day·Aug 14, 2026 - Aug 14, 2026
4
Insiders
$142.5K
Volume
Weak Signal
CFO Participating
Horn David R.
Executive
$47.5K
10,000 shares
LEVINE JOSHUA
Executive
$47.5K
10,000 shares
Annen Steven
SVP, Marketing & Product Mgmt.
$23.8K
5,000 shares
Mobeck Kenneth S.
Chief Financial Officer
$23.8K
5,000 shares
View EDAP Company Page
Delek Logistics Partners, LPDKL
Unknown·Same day·Aug 13, 2026 - Aug 13, 2026
5
Insiders
$750.0K
Volume
Weak Signal
CFO Participating
Yemin Ezra Uzi
Executive
$300.0K
6,000 shares
Hobbs Mark Wayne
EVP
$200.0K
4,000 shares
Soreq Avigal
Executive
$125.0K
2,500 shares
Wright Robert G.
EVP, Chief Financial Officer
$75.0K
1,500 shares
Spiegel Reuven
Executive
$50.0K
1,000 shares
View DKL Company Page
Embecta Corp.EMBC
Unknown·Same day·Aug 12, 2026 - Aug 12, 2026
4
Insiders
$557.9K
Volume
Weak Signal
CFO Participating
HOMBACH ROBERT J.
Executive
$223.8K
45,000 shares
Kurdikar Devdatt
Executive
$140.9K
30,000 shares
Mann Jeffrey Z
Pres, Pharm Svc&Prod Mgmt, CLO
$99.8K
20,000 shares
Elguicze Jacob
SVP and CFO
$93.4K
20,000 shares
View EMBC Company Page
Pinnacle Acquisition CorpPNAQ
Unknown·Same day·Aug 10, 2026 - Aug 10, 2026
4
Insiders
$2.8M
Volume
Weak Signal
PAC Sponsor, LLC
Executive
$2.3M
225,000 shares
Stoyan Paul J.
Executive
$350.0K
35,000 shares
Brandler Harry
Executive
$100.0K
10,000 shares
Martin Karen Lynne
Executive
$100.0K
10,000 shares
View PNAQ Company Page
MacKenzie Realty Capital, Inc.MKZR
Unknown·7 days·Aug 3, 2026 - Aug 10, 2026
3
Insiders
$196.0K
Volume
Weak Signal
CEO Participating
FULLER GLEN W
Treasurer
$89.3K
63,400 shares
PATTERSON CHARLES E. II
Executive
$53.3K
33,400 shares
DIXON ROBERT E
CEO/President
$53.3K
33,400 shares
View MKZR Company Page
Hepion Pharmaceuticals, Inc.HEPA
Unknown·Same day·Aug 3, 2026 - Aug 3, 2026
4
Insiders
$325.0K
Volume
Weak Signal
Stetz Gary S.
Executive
$100.0K
4,000,000 shares
Purcell Michael J.
Executive
$100.0K
4,000,000 shares
Appajosyula Sireesh
Executive
$100.0K
4,000,000 shares
Stetz Gary S. II
Executive
$25.0K
1,000,000 shares
View HEPA Company Page
EDAP TMS SAFOCL
Unknown·Same day·Aug 14, 2026 - Aug 14, 2026
4
Insiders
$408.5K
Volume
Weak Signal
WILLSEY LANCE
Executive
$237.5K
50,000 shares
Rhodes Ryan
Executive
$99.8K
21,000 shares
Schulz Fran
Executive
$47.5K
10,000 shares
Shah Sanket
General Counsel & Corp Sec
$23.8K
5,000 shares
View FOCL Company Page