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© 2026 Insider Trade Flow. Not financial advice. All data sourced from public SEC filings, 13F reports, and Polymarket.
45 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.

45
Buy Clusters
0
Sell Clusters
4
Strong Signals
$289.6M
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.

Start 7-Day Free TrialLearn More
$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
Calamos Aksia Hedged Strategies FundN/A
Unknown·47 days·Jul 8, 2026 - Aug 24, 2026
13
Insiders
$92.7M
Volume
Strong Signal
CEO ParticipatingCFO Participating
Manufacturers Life Insurance Co (Bermuda Branch)
Executive
$36.6M
2,000,000 shares
Manulife (International) Ltd
Executive
$26.0M
1,422,431.45 shares
Manufacturers Life Reinsurance Ltd
Executive
$17.0M
930,465.95 shares
Manulife (Singapore) Pte. Ltd.
Executive
$9.0M
492,564.4 shares
Calamos Aksia Hedged Strategies Fund (Offshore), Ltd.
Executive
$3.0M
284,586.11 shares
DIEHL BOWEN S
Executive
$500.1K
25,477.06 shares
+7 more insiders
View N/A Company Page
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTDTSM
Unknown·25 days·Jul 13, 2026 - Aug 7, 2026
30
Insiders
$338.9K
Volume
Strong Signal
CFO Participating
Lin Shyue-Shyh
VP
$150.2K
2,047 shares
Tien Bor-Zen
VP
$73.1K
1,000 shares
Wei Che-Chia
Executive
$11.1K
152 shares
Chen Chih-Ho
Controller
$6.1K
83 shares
Mii Yuh-Jier
EVP and Co-COO
$5.3K
72 shares
Chin Yung-Pei
EVP and Co-COO
$5.3K
72 shares
+24 more insiders
View TSM Company Page
Blackstone Private Equity Strategies Fund L.P.NONE
Unknown·50 days·Jul 9, 2026 - Aug 28, 2026
26
Insiders
$138.7M
Volume
Strong Signal
CEO Participating
Abu Dhabi Investment Authority
Executive
$47.9M
2,681,071.94 shares
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
Blackstone Private Multi-Asset Credit & Income Fund
Executive
$15.0M
573,613.77 shares
French Scot
Executive
$10.0M
400,000 shares
ASSURED GUARANTY LTD
Executive
$5.2M
209,387.82 shares
+20 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
IPERIONX LtdIPX
Unknown·4 days·Jul 10, 2026 - Jul 14, 2026
5
Insiders
$2.6M
Volume
Moderate Signal
CEO Participating
Hannigan Todd
Executive
$1.9M
525,000 shares
Arima Anastasios
Executive
$497.2K
138,720 shares
Martin Lorraine M
Executive
$100.5K
4,100 shares
Tripeny R Tony
Executive
$100.0K
3,846 shares
Symonds Toby Edgcumbe
President
$50.1K
2,040 shares
View IPX Company Page
Columbia Financial, Inc./MD/CLBK
Unknown·Same day·Jul 20, 2026 - Jul 20, 2026
7
Insiders
$1.8M
Volume
Moderate Signal
CFO Participating
Klein Steven M
Executive
$500.0K
50,000 shares
Splaine Thomas Jr
EVP, CFO
$500.0K
50,000 shares
Van Dyk Robert
Executive
$250.0K
25,000 shares
Sorrentini Lucy
Executive
$200.0K
20,000 shares
Prabhu Manesh Balachandran
EVP & CIO
$150.0K
15,000 shares
WAINWRIGHT JIM HOBART
Executive
$100.0K
10,000 shares
+1 more insiders
View CLBK 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
BEXIL INVESTMENT TRUSTBXSY
Unknown·49 days·Jul 8, 2026 - Aug 26, 2026
3
Insiders
$935.4K
Volume
Moderate Signal
WINMILL & CO. INC
Executive
$841.0K
48,766 shares
Atkinson Roger A.
Executive
$79.9K
4,680 shares
Winmill William McCollum
Executive
$14.5K
800 shares
View BXSY 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
Greenland Mines LtdGRML
Unknown·40 days·Jul 16, 2026 - Aug 25, 2026
3
Insiders
$462.1K
Volume
Moderate Signal
CFO Participating
LeBlanc Jeff
Chief Financial Officer
$381.4K
1,414,000 shares
Sawyer Jason David
Executive
$55.9K
240,000 shares
McGarity Jon
Executive
$24.8K
140,000 shares
View GRML 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·21 days·Jul 30, 2026 - Aug 20, 2026
3
Insiders
$97.6K
Volume
Moderate Signal
CFO Participating
Horowitz Joshua
Executive
$89.5K
9,103 shares
Fitzgerald John Taylor Maloney
Executive
$5.0K
532 shares
Hansen Kent A
CFO & EVP
$3.1K
332 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·16 days·Jul 29, 2026 - Aug 14, 2026
4
Insiders
$2.6M
Volume
Moderate Signal
Sukhtian Ghiath M.
Executive
$2.5M
5,050,504 shares
Sukhtian Faisal Ghiath
Executive
$100.0K
95,398 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
MacKenzie Realty Capital, Inc.MKZR
Unknown·Within 2 weeks·Jul 31, 2026 - Aug 10, 2026
3
Insiders
$247.6K
Volume
Moderate Signal
CEO Participating
FULLER GLEN W
Treasurer
$140.9K
100,000 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
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
East West Ave Acquisition Corp.EWAV
Unknown·3 days·Jul 31, 2026 - Aug 3, 2026
6
Insiders
$10.9M
Volume
Moderate Signal
Space Summit Capital LLC
Executive
$10.9M
1,087,000 shares
Verjee Irfan
Executive
$0
10,000 shares
Parikh Samir
Executive
$0
20,000 shares
Kerkaert Thomas John
Executive
$0
40,000 shares
Huang Maoli
Executive
$0
100,000 shares
East West Avenue LLC
Executive
$0
385,000 shares
View EWAV Company Page
Gloo Holdings, Inc.GLOO
Unknown·1 day·Jul 9, 2026 - Jul 10, 2026
4
Insiders
$9.0M
Volume
Moderate Signal
Beck Scott Arthur
Executive
$3.5M
1,076,923 shares
Grace & Mercy Foundation, Inc.
Executive
$3.0M
923,076 shares
Green Derek Todd
Executive
$2.0M
615,384 shares
GELSINGER PATRICK P
Executive
$500.0K
153,846 shares
View GLOO 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
BayCom CorpBCML
Unknown·21 days·Jul 31, 2026 - Aug 21, 2026
3
Insiders
$461.4K
Volume
Weak Signal
Baron Christopher F
Executive
$250.7K
8,250 shares
PERDUE MICHAEL J
Executive
$150.8K
5,000 shares
Laverne Robert G.
Executive
$59.8K
2,000 shares
View BCML Company Page
ALTISOURCE PORTFOLIO SOLUTIONS S.A.ASPS
Unknown·23 days·Jul 28, 2026 - Aug 20, 2026
3
Insiders
$329.0K
Volume
Weak Signal
Benefit Street Partners LLC
Executive
$288.5K
50,000 shares
Shepro William B
Executive
$20.7K
4,000 shares
Winkler Matthew T.
Executive
$19.8K
3,701 shares
View ASPS Company Page
WILSON BANK HOLDING COnone
Unknown·30 days·Jul 21, 2026 - Aug 20, 2026
3
Insiders
$411.4K
Volume
Weak Signal
CLEMONS JAMES RANDALL
Executive
$248.8K
2,982 shares
RICHERSON HERBERT ELMER
Executive
$152.5K
1,828 shares
COMER JAMES F
Executive
$10.0K
120 shares
View none Company Page
Burke & Herbert Financial Services Corp.BHRB
Unknown·20 days·Jul 31, 2026 - Aug 20, 2026
3
Insiders
$174.0K
Volume
Weak Signal
Poillon Diane
Executive
$88.4K
1,200 shares
McLaughlin Shawn Patrick
Executive
$73.3K
1,000 shares
WILSON DAVID
Executive
$12.3K
169 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
Byrna Technologies Inc.BYRN
Unknown·15 days·Jul 22, 2026 - Aug 6, 2026
3
Insiders
$163.9K
Volume
Weak Signal
Kennedy TJ
Executive
$102.3K
29,000 shares
ELMORE LEONARD J
Executive
$46.4K
10,000 shares
Hughes Herbert
Executive
$15.2K
4,000 shares
View BYRN Company Page
Orion Group Holdings IncORN
Unknown·Same day·Jul 31, 2026 - Jul 31, 2026
4
Insiders
$320.8K
Volume
Weak Signal
CFO Participating
LEDFORD ROBERT
Executive
$192.4K
20,000 shares
Vasquez Alison Gaut
EVP AND CFO
$50.0K
5,025 shares
Earle Edward Chipman
EVP & GENERAL COUNSEL
$49.0K
5,000 shares
Sullivan Mary E
Executive
$29.4K
3,000 shares
View ORN 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
CITY HOLDING COCHCO
Unknown·Same day·Jul 21, 2026 - Jul 21, 2026
4
Insiders
$59.7K
Volume
Weak Signal
FISHER ROBERT D
Executive
$21.0K
156 shares
STRONG-TREISTER DIANE W
Executive
$14.8K
110 shares
Hoyer James A
Executive
$12.8K
95 shares
Reyes Javier A
Executive
$11.2K
83 shares
View CHCO Company Page