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16 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
16
Sell Clusters
4
Strong Signals
$52.0M
Total Volume
Period:
7 Days30 Days90 Days
Type:
Buy ClustersSell ClustersAll
Vera Therapeutics, Inc.VERA
Unknown·Same day·Feb 23, 2026 - Feb 23, 2026
7
Insiders
$1.4M
Volume
Strong Signal
CFO Participating
Fordyce Marshall
Executive

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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$710.6K
16,925 shares
Grant Sean
CHIEF FINANCIAL OFFICER
$207.8K
4,949 shares
Young Joseph R
SVP, FINANCE, CHIEF ACCT OFFCR
$130.9K
3,117 shares
JOHNSON DAVID LEE
Chief Operating Officer
$108.3K
2,579 shares
Turner William D.
Chief Regulatory Officer
$91.8K
2,187 shares
Brenner Robert
Chief Medical Officer
$90.3K
2,151 shares
+1 more insiders
View VERA Company Page
Aveanna Healthcare Holdings, Inc.AVAH
Unknown·Same day·Feb 19, 2026 - Feb 19, 2026
5
Insiders
$2.0M
Volume
Strong Signal
CEO ParticipatingCFO Participating
Shaner Jeff
Chief Executive Officer
$1.2M
173,225 shares
Reisz Edwin C.
Chief Administrative Officer
$438.0K
60,769 shares
Cunningham Patrick A.
Chief Compliance Officer
$132.9K
18,436 shares
Buckhalter Matthew
Chief Financial Officer
$97.4K
13,512 shares
Stewart Deborah
SVP, Chief Accounting Officer
$80.6K
11,181 shares
View AVAH Company Page
ARTIVION, INC.AORT
Unknown·1 day·Feb 23, 2026 - Feb 24, 2026
6
Insiders
$2.3M
Volume
Strong Signal
CEO ParticipatingCFO Participating
Mackin James P
President & CEO
$1.3M
34,898 shares
Berry Lance A
EVP, COO, CFO & Treasurer
$347.3K
9,466 shares
Davis John E
Chief Commercial Officer
$215.9K
5,848 shares
Holloway Jean F
SVP, General Counsel
$175.3K
4,747 shares
Stanton Marshall S.
SVP, Clinical & MD Affair
$136.0K
3,682 shares
Horton Amy
VP, Chief Accounting Officer
$94.7K
2,561 shares
View AORT Company Page
Confluent, Inc.CFLT
Unknown·4 days·Feb 20, 2026 - Feb 24, 2026
4
Insiders
$10.0M
Volume
Strong Signal
CFO Participating
Kreps Edward Jay
Executive
$8.3M
270,207 shares
Mac Ban Ryan Norris
Chief Revenue Officer
$959.3K
31,273 shares
Sivaram Rohan
CHIEF FINANCIAL OFFICER
$660.1K
21,503 shares
Phan Kong
Chief Accounting Officer
$69.9K
2,277 shares
View CFLT Company Page
ICHOR HOLDINGS, LTD.ICHR
Unknown·1 day·Feb 23, 2026 - Feb 24, 2026
4
Insiders
$2.3M
Volume
Moderate Signal
CFO Participating
RAGSDALE BRUCE
Chief Operating Officer
$1.1M
21,276 shares
Haugen Marc
Executive
$988.0K
19,875 shares
Swyt Greg
Chief Financial Officer
$153.6K
3,000 shares
Titinger Jorge
Executive
$60.1K
1,200 shares
View ICHR Company Page
CLEAN HARBORS INCCLH
Unknown·1 day·Feb 19, 2026 - Feb 20, 2026
3
Insiders
$2.0M
Volume
Moderate Signal
CFO Participating
Gabriel Sharon M.
EVP/CIO (CHESI)
$998.5K
3,540 shares
Dugas Eric J.
EVP CHIEF FINANCIAL OFFICER
$784.3K
2,788 shares
Welch John R.
Executive
$204.8K
750 shares
View CLH Company Page
Tempus AI, Inc.TEM
Unknown·Same day·Feb 19, 2026 - Feb 19, 2026
3
Insiders
$1.3M
Volume
Moderate Signal
CEO ParticipatingCFO Participating
Rogers James William
Chief Financial Officer
$595.5K
10,084 shares
Fukushima Ryan
Chief Executive Officer, Data
$566.4K
9,592 shares
Bartolucci Ryan M
Chief Accounting Officer
$171.4K
2,902 shares
View TEM Company Page
OCULAR THERAPEUTIX, INCOCUL
Unknown·3 days·Feb 20, 2026 - Feb 23, 2026
5
Insiders
$256.4K
Volume
Moderate Signal
Dugel Pravin
Executive
$166.1K
20,056 shares
Waheed Nadia
Chief Medical Officer
$27.2K
3,510 shares
Heier Jeffrey S.
Chief Scientific Officer
$25.3K
3,057 shares
Kaiser Peter
Chief Development Officer
$23.3K
2,810 shares
Nayak Sanjay
Chief Strategy Officer
$14.6K
1,759 shares
View OCUL Company Page
COMFORT SYSTEMS USA INCFIX
Unknown·1 day·Feb 23, 2026 - Feb 24, 2026
3
Insiders
$15.0M
Volume
Moderate Signal
CFO Participating
GEORGE WILLIAM III
CHIEF FINANCIAL OFFICER
$12.9M
9,000 shares
Skidmore Constance Ellen
Executive
$1.4M
1,000 shares
Mercado, Pablo G.
Executive
$702.5K
500 shares
View FIX Company Page
ITRON, INC.ITRI
Unknown·4 days·Feb 19, 2026 - Feb 23, 2026
8
Insiders
$10.7M
Volume
Moderate Signal
CFO Participating
Deitrich Thomas
Executive
$5.9M
59,156 shares
Hooper Joan S
SVP & CFO
$1.7M
16,719 shares
Marcolini John F.
SVP, Networked Solutions
$799.2K
8,022 shares
Reeves Donald L. III
SVP, Outcomes
$748.2K
7,545 shares
Patrick Justin K
SVP, Device Solutions
$573.7K
5,758 shares
Ware Christopher E.
SVP, GC & Corp. Secretary
$523.0K
5,249 shares
+2 more insiders
View ITRI Company Page
KalVista Pharmaceuticals, Inc.KALV
Unknown·Same day·Feb 23, 2026 - Feb 23, 2026
5
Insiders
$396.6K
Volume
Moderate Signal
CFO Participating
Palleiko Benjamin L
Executive
$156.2K
10,034 shares
Audhya Paul K.
CHIEF MEDICAL OFFICER
$83.3K
5,354 shares
Yea Christopher
CHIEF DEVELOPMENT OFFICER
$67.7K
4,347 shares
Sweeny Nicole
Chief Commercial Officer
$61.9K
3,975 shares
Piekos Brian
Chief Financial Officer
$27.5K
1,767 shares
View KALV Company Page
RAPID MICRO BIOSYSTEMS, INC.RPID
Unknown·1 day·Feb 19, 2026 - Feb 20, 2026
3
Insiders
$237.8K
Volume
Moderate Signal
CFO Participating
Spignesi Robert G. Jr.
Executive
$148.9K
38,327 shares
WIRTJES SEAN M
CHIEF FINANCIAL OFFICER
$67.7K
17,254 shares
Wilson John J. Addington
CHIEF OPERATING OFFICER
$21.2K
5,403 shares
View RPID Company Page
RUSH ENTERPRISES INC \TX\RUSHA
Unknown·Same day·Feb 19, 2026 - Feb 19, 2026
3
Insiders
$1.7M
Volume
Moderate Signal
CEO Participating
Pollard Jody
Senior Vice President
$809.1K
11,250 shares
McRoberts Michael
Executive
$566.5K
8,000 shares
Goldstone Michael L
SVP, GC and Corp. Sec.
$323.4K
4,500 shares
View RUSHA Company Page
10x Genomics, Inc.TXG
Unknown·Same day·Feb 23, 2026 - Feb 23, 2026
3
Insiders
$490.9K
Volume
Weak Signal
CFO Participating
Saxonov Serge
Executive
$178.9K
9,632 shares
Taich Adam
Chief Financial Officer
$166.6K
8,968 shares
Hindson Benjamin J.
Executive
$145.4K
7,826 shares
View TXG Company Page
MKS INCMKSI
Unknown·Same day·Feb 20, 2026 - Feb 20, 2026
3
Insiders
$1.8M
Volume
Weak Signal
Burke Kathleen Flaherty
EVP, GC & Secretary
$1.1M
4,254 shares
Williams John Edward
EVP & GM, PSD
$523.7K
2,042.63 shares
Moloney Jacqueline F
Executive
$205.2K
829 shares
View MKSI Company Page
Viant Technology Inc.DSP
Unknown·Same day·Feb 19, 2026 - Feb 19, 2026
3
Insiders
$150.4K
Volume
Weak Signal
Capital V LLC
Executive
$90.2K
9,836 shares
Vanderhook Christopher
Executive
$30.1K
3,279 shares
Vanderhook Timothy
Executive
$30.1K
3,279 shares
View DSP Company Page