Insider
SEC Form 4
Polymarket
Log inSign up
Insider

Smart money intelligence platform. Track insider trading, institutional flows, and prediction markets.

Products

SEC Form 4Polymarket

Learn

GlossaryBlogDirectoryLeaderboards

Legal

Terms of ServicePrivacy PolicyDisclaimer
© 2026 Insider Trade Flow. Not financial advice. All data sourced from public SEC filings, 13F reports, and Polymarket.
37 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.

0
Buy Clusters
37
Sell Clusters
6
Strong Signals
$93.0M
Total Volume
Period:
7 Days30 Days90 Days
Type:
Buy ClustersSell ClustersAll
CIENA CORPCIEN
Unknown·Within 2 weeks·Oct 1, 2026 - Oct 15, 2026
6
Insiders
$5.1M
Volume
Strong Signal
CFO Participating
SMITH GARY B
Executive
$2.1M
5,904 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.

Start 7-Day Free TrialLearn More
Phipps Jason
EVP & Chief Customer Officer
$933.8K
2,629 shares
Rothenstein David M
EVP & Chief Strategy Officer
$870.2K
2,500 shares
Kosaraju Sheela
EVP & Chief Legal Officer
$746.3K
2,101 shares
Gage Brodie
EVP & Chief Product & Tech
$412.9K
1,200 shares
Graff Marc D.
EVP & Chief Financial Officer
$34.5K
97 shares
View CIEN Company Page
BLACKBERRY LtdBB
Unknown·20 days·Oct 2, 2026 - Oct 22, 2026
5
Insiders
$2.7M
Volume
Strong Signal
CEO ParticipatingCFO Participating
GIAMATTEO JOHN JOSEPH
Executive
$2.6M
279,272 shares
Kurtz Philip S.
CLO & Corp. Secretary
$38.3K
4,168 shares
Wall John Christopher
President, QNX
$31.9K
3,474 shares
Foote Tim
Chief Financial Officer
$30.1K
3,269 shares
Armstrong-Owen Jennifer
Sr VP & Chief People Officer
$23.8K
2,590 shares
View BB Company Page
CLOVER HEALTH INVESTMENTS, CORP. /DECLOV
Unknown·15 days·Oct 5, 2026 - Oct 20, 2026
4
Insiders
$442.0K
Volume
Strong Signal
CEO ParticipatingCFO Participating
Soares Karen
Chief Legal Officer
$158.5K
33,948 shares
Reynoso Jamie L.
CEO, Medicare Advantage
$151.4K
33,095 shares
Wai Conrad
CEO, Counterpart Health
$110.6K
23,627 shares
THORNTON JOSEPH CLAY
Interim CFO
$21.5K
4,591 shares
View CLOV Company Page
ANALOG DEVICES INCADI
Unknown·19 days·Oct 1, 2026 - Oct 20, 2026
4
Insiders
$8.7M
Volume
Strong Signal
CFO Participating
ROCHE VINCENT
Executive
$4.0M
10,000 shares
Jain Vivek
Chief Operations/Tech Officer
$3.0M
7,305.06 shares
Puccio Richard C Jr
Chief Financial Officer
$1.2M
3,000 shares
Nakamura Katsufumi
Chief Customer Officer
$498.0K
1,200 shares
View ADI Company Page
COSTCO WHOLESALE CORP /NEWCOST
Unknown·Within 2 weeks·Sep 29, 2026 - Oct 13, 2026
3
Insiders
$3.8M
Volume
Strong Signal
CEO Participating
Adamo Claudine
Executive Vice President
$2.0M
2,200 shares
Wilcox William Richard
Executive Vice President
$1.1M
1,100 shares
Frates Caton
Sr. Executive Vice President
$733.3K
800.64 shares
View COST Company Page
Cerence Inc.CRNC
Unknown·2 days·Oct 7, 2026 - Oct 9, 2026
5
Insiders
$3.2M
Volume
Strong Signal
CFO Participating
Krzanich Brian M
Executive
$1.3M
153,418 shares
Rodriquez Antonio
CFO
$612.9K
76,614 shares
Salinas Jennifer
EVP Chief Admin Officer
$529.2K
66,153 shares
Schanz Nils
EVP Product & Technology
$419.5K
52,439 shares
Mentz Christian
EVP, Chief Revenue Officer
$391.4K
48,923 shares
View CRNC Company Page
Ferguson Enterprises Inc. /DE/FERG
Unknown·4 days·Oct 12, 2026 - Oct 16, 2026
6
Insiders
$2.9M
Volume
Moderate Signal
Thees William T. Jr
Chief Operating Officer
$899.3K
4,080 shares
Schlicher Jake
Chief Strategy Officer
$804.8K
3,669 shares
Murphy Kevin Michael
Executive
$549.8K
2,461 shares
Graham Ian T.
See Remarks
$327.6K
1,434 shares
Stirrup Allison
Chief Human Resources Officer
$207.4K
922 shares
Camposano Robert Anthony Jr.
Senior VP - Waterworks
$85.9K
386 shares
View FERG Company Page
Guidewire Software, Inc.GWRE
Unknown·22 days·Sep 28, 2026 - Oct 20, 2026
3
Insiders
$3.3M
Volume
Moderate Signal
CEO Participating
King James Winston
Chief Admin Officer, Gen Couns
$1.5M
9,187 shares
Mullen John P
President
$999.0K
5,400 shares
Rosenbaum Michael George
Executive
$758.4K
4,800 shares
View GWRE Company Page
Enliven Therapeutics, Inc.ELVN
Unknown·18 days·Oct 1, 2026 - Oct 19, 2026
3
Insiders
$1.0M
Volume
Moderate Signal
CFO Participating
Garland J. Scott
Executive
$606.7K
13,000 shares
Hohl Benjamin
CHIEF FINANCIAL OFFICER
$231.5K
6,018 shares
Collins Helen Louise
CHIEF MEDICAL OFFICER
$192.3K
5,000 shares
View ELVN Company Page
Pagaya Technologies Ltd.PGY
Unknown·4 days·Sep 28, 2026 - Oct 2, 2026
4
Insiders
$326.1K
Volume
Moderate Signal
CEO ParticipatingCFO Participating
DAS SANJIV
President
$243.7K
14,300 shares
Vieira Cory
Chief Accounting Officer
$37.0K
2,170 shares
Rosen Tami
Executive
$35.4K
1,986 shares
Dobres Jonathan
Chief Financial Officer
$10.1K
590 shares
View PGY Company Page
TransUnionTRU
Unknown·15 days·Oct 1, 2026 - Oct 16, 2026
3
Insiders
$212.6K
Volume
Moderate Signal
CEO Participating
Abdelsadek Mohamed
EVP, Chief Global Solutions
$80.3K
1,147 shares
CHAOUKI STEVEN M
President, US Markets
$70.0K
1,000 shares
Skinner Todd C.
President, International
$62.3K
1,000 shares
View TRU Company Page
Grab Holdings LtdGRAB
Unknown·Within 2 weeks·Oct 5, 2026 - Oct 15, 2026
3
Insiders
$356.4K
Volume
Moderate Signal
CFO Participating
Oey Peter Henry
Chief Financial Officer
$148.9K
50,000 shares
Ong Chin Yin
Chief Org Capability Officer
$117.4K
38,000 shares
Kandal Philipp Wolfgang Josef
Chief Product Officer
$90.0K
30,000 shares
View GRAB Company Page
Arqit Quantum Inc.ARQQ
Unknown·Within 2 weeks·Oct 2, 2026 - Oct 13, 2026
6
Insiders
$239.4K
Volume
Moderate Signal
CEO Participating
Leaver Andrew
Chief Executive Officer
$169.2K
7,789 shares
Nilan Nicholas William
General Manager-US
$36.4K
1,509 shares
Willcocks Patrick
General Counsel
$13.4K
555 shares
Feenan Paul
Chief Revenue Officer
$12.2K
504 shares
Wilder Ben Simon
Chief Operating Officer
$5.3K
218 shares
Ritchie Garth
Executive
$2.9K
118 shares
View ARQQ Company Page
Nebius Group N.V.NBIS
Unknown·2 days·Sep 29, 2026 - Oct 1, 2026
4
Insiders
$19.1M
Volume
Moderate Signal
Volozh Arkadiy
Executive
$8.8M
37,778 shares
Korolenko Andrey
Chief Infrastructure Officer
$6.8M
29,090 shares
Shtan Danila
Chief Technology Officer
$3.4M
14,546 shares
Boynton John Wilson IV
Executive
$11.8K
50 shares
View NBIS Company Page
American Well CorpAMWL
Unknown·Same day·Oct 1, 2026 - Oct 1, 2026
4
Insiders
$260.7K
Volume
Moderate Signal
CEO ParticipatingCFO Participating
Zamansky Dmitry
Chief Product & Tech. Officer
$109.7K
8,442 shares
Gotlib Phyllis
President, International
$86.8K
6,677 shares
HIRSCHHORN MARK
Chief Financial Officer
$55.7K
4,282 shares
McNeice Paul Francis
Chief Accounting Officer
$8.5K
653 shares
View AMWL Company Page
ANI PHARMACEUTICALS INCANIP
Unknown·16 days·Sep 29, 2026 - Oct 15, 2026
3
Insiders
$633.1K
Volume
Moderate Signal
CFO Participating
Lalwani Nikhil
Executive
$388.2K
5,400 shares
CAREY STEPHEN P.
SVP & CFO
$208.1K
2,850 shares
Cook Meredith
SR. VP, GENERAL COUNSEL & SEC.
$36.8K
500 shares
View ANIP Company Page
SentinelOne, Inc.S
Unknown·1 day·Oct 6, 2026 - Oct 7, 2026
3
Insiders
$2.5M
Volume
Moderate Signal
CEO ParticipatingCFO Participating
Parekh Sonalee Elizabeth
Chief Financial Officer
$1.7M
68,007 shares
Pinczuk Ana G.
Executive
$406.3K
16,042 shares
PADGETT BARRY L.
President and COO
$391.6K
15,460 shares
View S Company Page
Immunovant, Inc.IMVT
Unknown·19 days·Oct 2, 2026 - Oct 21, 2026
4
Insiders
$309.1K
Volume
Moderate Signal
Venker Eric
Executive
$119.6K
3,506 shares
Stout Jay S
Chief Technology Officer
$75.1K
2,595 shares
Gloria Melanie
Chief Operating Officer
$71.8K
2,241 shares
Van Tuyl Christopher
Chief Legal Officer
$42.5K
1,327 shares
View IMVT Company Page
Oklo Inc.OKLO
Unknown·22 days·Sep 28, 2026 - Oct 20, 2026
4
Insiders
$272.8K
Volume
Moderate Signal
Narayanadas Vivek
General Counsel & Secretary
$103.0K
3,668 shares
Goodwin William Carroll Murphy
Chief Strategy Officer
$66.4K
1,775 shares
Renner Alexandra
Chief Product Officer
$62.3K
1,788 shares
Hanson John
Chief of Staff
$41.1K
1,100 shares
View OKLO Company Page
Kura Oncology, Inc.KURA
Unknown·1 day·Sep 28, 2026 - Sep 29, 2026
4
Insiders
$689.1K
Volume
Moderate Signal
Leoni Mollie
Chief Medical Officer
$440.2K
41,250 shares
FORD KATHLEEN
Chief Operating Officer
$111.9K
10,574 shares
Bair Teresa Brophy
Chief Legal Officer
$88.6K
8,442 shares
DOYLE THOMAS JAMES
SVP, Finance & Accounting
$48.4K
4,607 shares
View KURA Company Page
Porch Group, Inc.PRCH
Unknown·15 days·Oct 5, 2026 - Oct 20, 2026
3
Insiders
$2.4M
Volume
Moderate Signal
Neagle Matthew
Chief Operating Officer
$1.3M
71,875 shares
Ehrlichman Matt
Executive
$705.1K
41,081 shares
Reierson Amanda L
Executive
$375.8K
20,919 shares
View PRCH Company Page
MediaAlpha, Inc.MAX
Unknown·Within 2 weeks·Oct 8, 2026 - Oct 19, 2026
3
Insiders
$435.3K
Volume
Moderate Signal
Yi Steven
Executive
$263.3K
26,033 shares
Cramer Keith
Chief Revenue Officer
$136.6K
12,000 shares
Yeh Kuanling Amy
Chief Technology Officer
$35.3K
3,000 shares
View MAX Company Page
ABEONA THERAPEUTICS INC.ABEO
Unknown·Same day·Sep 29, 2026 - Sep 29, 2026
4
Insiders
$208.4K
Volume
Moderate Signal
CFO Participating
Seshadri Vishwas
Executive
$101.1K
19,608 shares
Vazzano Joseph Walter
Chief Financial Officer
$47.4K
9,191 shares
O'Malley Brendan M.
SVP, Chief Legal Officer
$34.7K
6,727 shares
Vasanthavada Madhav
Chief Commercial Officer
$25.3K
4,902 shares
View ABEO Company Page
TERADYNE, INCTER
Unknown·20 days·Oct 1, 2026 - Oct 21, 2026
3
Insiders
$1.8M
Volume
Moderate Signal
Smith Gregory Stephen
Executive
$1.4M
4,000 shares
MATZ MARILYN
Executive
$413.0K
1,200 shares
JOHNSON MERCEDES
Executive
$67.3K
167 shares
View TER Company Page
CRISPR Therapeutics AGCRSP
Unknown·Within 2 weeks·Oct 6, 2026 - Oct 19, 2026
3
Insiders
$3.5M
Volume
Moderate Signal
Kulkarni Samarth
Executive
$2.6M
51,935 shares
George Simeon
Executive
$720.4K
14,514 shares
KASINGER JAMES R.
General Counsel and Secretary
$170.7K
3,030 shares
View CRSP Company Page
IDT CORPIDT
Unknown·Within 2 weeks·Oct 1, 2026 - Oct 15, 2026
5
Insiders
$1.8M
Volume
Moderate Signal
SCHORR JUDAH
Executive
$1.1M
13,753 shares
SILBERMAN MITCH
CAO & Controller
$522.6K
6,507 shares
MASON JOYCE J
EVP and Corporate Secretary
$92.6K
1,150 shares
COSENTINO ERIC F.
Executive
$39.3K
500 shares
SHEA NADINE
EVP of GLOBAL HUMAN RESOURCES
$31.2K
400 shares
View IDT Company Page
StoneX Group Inc.SNEX
Unknown·17 days·Sep 28, 2026 - Oct 15, 2026
3
Insiders
$14.2M
Volume
Moderate Signal
Smith Philip Andrew
Executive
$6.4M
101,250 shares
OCONNOR SEAN MICHAEL
Executive
$4.6M
76,148 shares
Maurer Mark Lowry
Executive
$3.2M
52,953 shares
View SNEX Company Page
Palantir Technologies Inc.PLTR
Unknown·Within 2 weeks·Oct 1, 2026 - Oct 9, 2026
3
Insiders
$5.1M
Volume
Moderate Signal
Taylor Ryan D.
See Remarks
$3.6M
18,000 shares
Stat Lauren Elaina Friedman
Executive
$1.3M
6,363 shares
Woersching Eric H.
Executive
$205.0K
1,000 shares
View PLTR Company Page
PubMatic, Inc.PUBM
Unknown·Same day·Oct 5, 2026 - Oct 5, 2026
3
Insiders
$803.3K
Volume
Moderate Signal
CFO Participating
Pantelick Steven
CHIEF FINANCIAL OFFICER
$413.8K
22,173 shares
Goel Amar K.
Executive
$201.5K
10,795 shares
Woods Andrew
GENERAL COUNSEL & SECRETARY
$188.0K
10,079 shares
View PUBM Company Page
Liquidia CorpLQDA
Unknown·Same day·Oct 12, 2026 - Oct 12, 2026
3
Insiders
$348.5K
Volume
Weak Signal
Boyle Dana
Chief Accounting Officer
$167.8K
5,892 shares
Krepp Sarah
Chief Human Resource Officer
$149.4K
5,245 shares
Khindri Sanjeev
Chief Development Officer
$31.4K
1,101 shares
View LQDA Company Page
Sunrun Inc.RUN
Unknown·Same day·Oct 6, 2026 - Oct 6, 2026
4
Insiders
$403.6K
Volume
Weak Signal
Powell Mary
Executive
$188.9K
24,335 shares
Dickson Paul S.
Pres. & Chief Revenue Officer
$123.0K
15,837 shares
STEELE JEANNA
Chief Legal & People Officer
$78.0K
10,042 shares
Barak Maria
Chief Accounting Officer
$13.8K
1,771 shares
View RUN Company Page
CarGurus, Inc.CARG
Unknown·Same day·Oct 2, 2026 - Oct 2, 2026
3
Insiders
$406.7K
Volume
Weak Signal
Sarnoff Dafna
Chief Marketing Officer
$214.3K
7,234 shares
Quinn Matthew Todd
Chief Technology Officer
$113.3K
3,824 shares
Elshareef Ismail
Chief Product Officer
$79.2K
2,673 shares
View CARG Company Page
Autohome Inc.ATHM
Unknown·Same day·Sep 30, 2026 - Sep 30, 2026
3
Insiders
$260.7K
Volume
Weak Signal
CFO Participating
Long Quan
Executive
$181.9K
34,400 shares
Zeng Yan
Chief Financial Officer
$49.3K
9,316 shares
Xiang Bibo
Chief Technology Officer
$29.5K
5,588 shares
View ATHM Company Page
BlackSky Technology Inc.BKSY
Unknown·Same day·Oct 20, 2026 - Oct 20, 2026
3
Insiders
$505.8K
Volume
Weak Signal
CFO Participating
O'Toole Brian E
Executive
$337.2K
20,000 shares
Lin Christiana L
General Counsel & CAO
$101.2K
6,000 shares
Dubois Henry Edward
Chief Financial Officer
$67.4K
4,000 shares
View BKSY Company Page
TREDEGAR CORPTG
Unknown·4 days·Oct 16, 2026 - Oct 20, 2026
3
Insiders
$1.7M
Volume
Weak Signal
GOTTWALD WILLIAM M
Executive
$551.6K
68,840 shares
GOTTWALD JOHN D
Executive
$551.6K
68,840 shares
Gottwald James T.
Executive
$551.6K
68,839 shares
View TG Company Page
Strive, Inc.ASST
Unknown·Same day·Oct 5, 2026 - Oct 5, 2026
6
Insiders
$3.2M
Volume
Weak Signal
Cole Matthew Ryan
Executive
$1.8M
58,789 shares
Beirne Brian Logan
Executive
$629.1K
20,077 shares
MACEY JONATHAN R
Executive
$203.1K
6,700 shares
Lavish James
Executive
$184.5K
6,000 shares
Sarkhani Arshia
Executive
$176.5K
5,634 shares
Pham Benjamin
Executive
$131.9K
4,209 shares
View ASST Company Page
Perion Network Ltd.PERI
Unknown·Same day·Oct 1, 2026 - Oct 1, 2026
3
Insiders
$59.0K
Volume
Weak Signal
Kaplan Eyal
Executive
$25.4K
2,916 shares
VORHAUS MICHAEL
Executive
$18.8K
2,161 shares
Marcus Joy Sharon
Executive
$14.7K
1,690 shares
View PERI Company Page