LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
CCOICIK 0001158324

COGENT COMMUNICATIONS HOLDINGS, INC.

61 transactions by 12 insiders, from November 11, 2025 to September 30, 2026.

Transactions
6112 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$995Kopen market
Net
−$995Knet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Dave SchaefferCEO9———
Sheryl Lynn KennedyDir7——$181K
Lewis H. FERGUSONDir7——$189K
Thaddeus Gerard WeedCFO7——$412K
Henry W. KilmerVP6——$214K
Deneen C. HowellDir4———
Steven D. BrooksDir4———
Marc MontagnerDir4———
Sa Paul deDir4———
Eve N. HowardDir4———
John B. ChangGC3———
Mark Andrew HarrisChief2———

All transactions

61 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Marc MontagnerDirSep 30A3,445$0.00—
Sheryl Lynn KennedyDirSep 30A3,445$0.00—
Deneen C. HowellDirSep 30A3,445$0.00—
Eve N. HowardDirSep 30A3,445$0.00—
Lewis H. FERGUSONDirSep 30A3,445$0.00—
Sa Paul deDirSep 30A3,445$0.00—
Steven D. BrooksDirSep 30A3,445$0.00—
Henry W. KilmerVPSep 15S2,400$9.21$22K
Thaddeus Gerard WeedCFOSep 2S4,850$9.37$45K
Eve N. HowardDirJun 30A3,445$0.00—
Deneen C. HowellDirJun 30A3,445$0.00—
Sa Paul deDirJun 30A3,445$0.00—
Steven D. BrooksDirJun 30A3,445$0.00—
Sheryl Lynn KennedyDirJun 30A3,445$0.00—
Marc MontagnerDirJun 30A3,445$0.00—
Lewis H. FERGUSONDirJun 30A3,445$0.00—
Thaddeus Gerard WeedCFOJun 16S4,850$16.79$81K
Henry W. KilmerVPJun 15S2,400$17.01$41K
Lewis H. FERGUSONDirMay 28S2,800$20.36$57K
Sheryl Lynn KennedyDirMay 14S3,300$16.22$54K
Dave SchaefferCEOMay 4G1,000,000$0.00—
Dave SchaefferCEOMay 4G1,000,000$0.00—
Dave SchaefferCEOMay 4A1,000,000$0.00—
Dave SchaefferCEOApr 1G29,333$0.00—
Dave SchaefferCEOApr 1G29,333$0.00—
Dave SchaefferCEOApr 1D58,667$0.00—
Eve N. HowardDirMar 31A3,445$0.00—
Deneen C. HowellDirMar 31A3,445$0.00—
Sa Paul deDirMar 31A3,445$0.00—
Sheryl Lynn KennedyDirMar 31A3,445$0.00—
Marc MontagnerDirMar 31A3,445$0.00—
Lewis H. FERGUSONDirMar 31A3,445$0.00—
Steven D. BrooksDirMar 31A3,445$0.00—
Henry W. KilmerVPMar 6S2,400$23.35$56K
Sheryl Lynn KennedyDirMar 5S3,300$22.99$76K
Lewis H. FERGUSONDirMar 5S2,206$23.03$51K
Thaddeus Gerard WeedCFOMar 5S4,850$22.63$110K
Mark Andrew HarrisChiefDec 31A100,000$0.00—
Mark Andrew HarrisChiefDec 31A5,000$0.00—
Eve N. HowardDirDec 31A3,388$0.00—
Deneen C. HowellDirDec 31A3,388$0.00—
Sa Paul deDirDec 31A3,388$0.00—
Sheryl Lynn KennedyDirDec 31A3,388$0.00—
John B. ChangGCDec 31A100,000$0.00—
John B. ChangGCDec 31A9,600$0.00—
Henry W. KilmerVPDec 31A9,600$0.00—
Marc MontagnerDirDec 31A3,388$0.00—
Lewis H. FERGUSONDirDec 31A3,388$0.00—
Thaddeus Gerard WeedCFODec 31A100,000$0.00—
Thaddeus Gerard WeedCFODec 31A19,400$0.00—
Dave SchaefferCEODec 31G229,657$0.00—
Dave SchaefferCEODec 31G229,657$0.00—
Dave SchaefferCEODec 31A229,657$0.00—
Steven D. BrooksDirDec 31A3,388$0.00—
Thaddeus Gerard WeedCFODec 11S7,300$23.99$175K
Henry W. KilmerVPDec 8S4,800$19.79$95K
Thaddeus Gerard WeedCFODec 1A2,400$0.00—
John B. ChangGCDec 1A2,400$0.00—
Henry W. KilmerVPDec 1S2,400$0.00—
Lewis H. FERGUSONDirDec 2S4,000$20.34$81K
Sheryl Lynn KennedyDirNov 11S2,400$21.34$51K