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Cogent Communications Holdings, Inc.

CCOI
Exchange
Nasdaq
Industry
Communications Services, NEC
SEC CIK
0001158324

In the last 90 days, Cogent Communications Holdings, Inc. insiders filed 0 open-market purchases and 2 sales; 224 institutions reported holding it in 13F filings for Q2 2026, worth $656.2M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Cogent Communications Holdings, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
2 filings
2 insiders, $67.5K in total
Insiders trading
2
Net value
−$67.5K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Cogent Communications Holdings, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Cogent Communications Holdings, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Kilmer Henry WVP OF NETWORK STRATEGY36,200Sep 15, 20266
Weed Thaddeus GerardVICE PRESIDENT, CFO193,050Sep 3, 20266
Howell Deneen CDirector32,330Jul 1, 20264
Brooks Steven DDirector58,693Jul 1, 20264
de Sa PaulDirector33,792Jul 1, 20264
Howard Eve NDirector27,306Jul 1, 20264
FERGUSON Lewis HDirector24,539Jun 30, 20267
Montagner MarcDirector99,842Jun 30, 20264
Kennedy Sheryl LynnDirector13,690Jun 30, 20267
Schaeffer DaveCHAIRMAN, CEO, AND PRESIDENT1,258,990IndirectMay 4, 20263
Chang John B.VP & CHIEF LEGAL OFFICER188,847Jan 5, 20262
Harris Mark AndrewVP & Chief Revenue Officer110,168Jan 5, 20261
Bubeck JamesCHIEF REVENUE OFFICER55,142Jun 6, 20250
Bath BlakeDirector12,606Mar 31, 20250
Kapp David AllenVP & CHIEF TECHNICAL OFFICER6,600Aug 14, 20230
O'Connor Greg WVP, CHIEF OPERATING OFFICER16,000May 3, 20230
Kummer Raymond BCTO Emeritus60,000Jan 4, 20230
Wallace Sean RobertVP, CFO & Treasurer29,225Mar 3, 20220
Katz CarolynDirector15,750Oct 1, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 15, 2026 (view filing)5:50 PM ETSep 15Same dayKilmer Henry WVP OF NETWORK STRATEGYSSale−2.40K$9.21−$22.1K−6.2%36.2K after
Sep 3, 2026 (view filing)9:45 AM ETSep 21 dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−4.85K$9.37−$45.4K−2.5%193.1K after
Jun 16, 2026 (view filing)Jun 16Same dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−4.85K$16.79−$81.4K−2.4%197.9K after
Jun 15, 2026 (view filing)Jun 15Same dayKilmer Henry WVP OF NETWORK STRATEGYSSale−2.40K$17.01−$40.8K−5.9%38.6K after
May 28, 2026 (view filing)May 28Same dayFERGUSON Lewis HDirectorSSale−2.80K$20.36−$57.0K−11.7%21.1K after
May 18, 2026 (view filing)May 144 daysKennedy Sheryl LynnDirectorSSale−3.30K$16.22−$53.5K−24.4%10.2K after
Mar 9, 2026 (view filing)Mar 63 daysKilmer Henry WVP OF NETWORK STRATEGYSSale−2.40K$23.35−$56.0K−5.5%41.0K after
Mar 5, 2026 (view filing)Mar 5Same dayKennedy Sheryl LynnDirectorSSale−3.30K$22.99−$75.9K−24.6%10.1K after
Mar 5, 2026 (view filing)Mar 5Same dayFERGUSON Lewis HDirectorSSale−2.21K$23.03−$50.8K−9.7%20.4K after
Mar 5, 2026 (view filing)Mar 5Same dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−4.85K$22.63−$109.8K−2.3%202.8K after
Dec 12, 2025 (view filing)Dec 111 dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−7.30K$23.99−$175.1K−7.6%88.2K after
Dec 8, 2025 (view filing)Dec 8Same dayKilmer Henry WVP OF NETWORK STRATEGYSSale−4.80K$19.79−$95.0K−12.4%33.8K after
Dec 2, 2025 (view filing)Dec 11 dayKilmer Henry WVP OF NETWORK STRATEGYSSale+2.40K$0.00$0+6.6%38.6K after
Dec 2, 2025 (view filing)Dec 2Same dayFERGUSON Lewis HDirectorSSale−4.00K$20.34−$81.4K−17.2%19.3K after
Nov 12, 2025 (view filing)Nov 111 dayKennedy Sheryl LynnDirectorSSale−2.40K$21.34−$51.2K−19.3%10.0K after
Sep 5, 2025 (view filing)Sep 5Same dayKilmer Henry WVP OF NETWORK STRATEGYSSale−2.40K$36.99−$88.8K−6.2%36.2K after
Sep 2, 2025 (view filing)Sep 2Same dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−4.90K$36.98−$181.2K−5.0%93.1K after
Aug 21, 2025 (view filing)Aug 21Same dayKennedy Sheryl LynnDirectorSSale−2.00K$36.35−$72.7K−16.6%10.0K after
Aug 11, 2025 (view filing)Aug 83 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−818.9K$27.50−$22.5M−54.0%697.1K after
Aug 8, 2025 (view filing)Aug 71 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−1.84M$32.60−$60.0M−54.8%1.52M after
Jun 16, 2025 (view filing)Jun 16Same daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−70.0K$47.11−$3.30M−2.0%3.36M after2 lots
Jun 16, 2025 (view filing)Jun 133 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−55.0K$47.41−$2.61M−1.6%3.43M after2 lots
Jun 12, 2025 (view filing)Jun 12Same daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−55.0K$47.86−$2.63M−1.6%3.48M after2 lots
Jun 12, 2025 (view filing)Jun 111 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−55.0K$48.51−$2.67M−1.5%3.54M after2 lots
Jun 10, 2025 (view filing)Jun 10Same daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−55.0K$48.68−$2.68M−1.5%3.59M after2 lots
Jun 9, 2025 (view filing)Jun 9Same daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−55.0K$48.64−$2.68M−1.5%3.65M after2 lots
Jun 9, 2025 (view filing)Jun 9Same dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−4.90K$48.04−$235.4K−4.8%98.0K after
Jun 9, 2025 (view filing)Jun 63 daysKilmer Henry WVP OF NETWORK STRATEGYSSale−2.40K$47.95−$115.1K−5.9%38.6K after
Jun 9, 2025 (view filing)Jun 63 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−80.0K$47.78−$3.82M−2.1%3.70M after2 lots
Jun 9, 2025 (view filing)Jun 54 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−75.0K$47.30−$3.55M−1.9%3.78M after2 lots
Jun 6, 2025 (view filing)Jun 42 daysBubeck JamesCHIEF REVENUE OFFICERSSale−2.00K$47.50−$95.0K−3.5%55.1K after
Jun 5, 2025 (view filing)Jun 41 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−75.0K$47.76−$3.58M−1.9%3.86M after2 lots
Jun 4, 2025 (view filing)Jun 31 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−65.0K$46.97−$3.05M−1.6%3.93M after2 lots
Jun 3, 2025 (view filing)Jun 21 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−65.0K$46.32−$3.01M−1.6%4.00M after2 lots
Jun 2, 2025 (view filing)May 303 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−25.0K$45.90−$1.15M−0.6%4.06M after
May 30, 2025 (view filing)May 291 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−25.0K$46.90−$1.17M−0.6%4.09M after
May 29, 2025 (view filing)May 281 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−20.0K$47.41−$948.2K−0.5%4.11M after
May 29, 2025 (view filing)May 281 dayWeed Thaddeus GerardVICE PRESIDENT, CFOSSale−100$47.67−$4.77K−0.1%102.9K after
May 29, 2025 (view filing)May 281 dayFERGUSON Lewis HDirectorSSale−1.10K$47.57−$52.3K−5.5%18.9K after
May 28, 2025 (view filing)May 271 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−20.0K$48.67−$973.4K−0.5%4.13M after
May 27, 2025 (view filing)May 234 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−25.0K$46.93−$1.17M−0.6%4.15M after
May 23, 2025 (view filing)May 221 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−25.0K$46.27−$1.16M−0.6%4.18M after
May 22, 2025 (view filing)May 211 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−40.0K$46.81−$1.87M−0.9%4.20M after
May 21, 2025 (view filing)May 201 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−15.0K$49.96−$749.4K−0.4%4.24M after
May 19, 2025 (view filing)May 163 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−15.0K$51.00−$765.0K−0.4%4.26M after
May 19, 2025 (view filing)May 163 daysWeed Thaddeus GerardVICE PRESIDENT, CFOSSale0––0.0%103.0K afterAmended
May 16, 2025 (view filing)May 151 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−40.0K$50.38−$2.02M−0.9%4.27M after
May 15, 2025 (view filing)May 141 daySchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−30.0K$50.64−$1.52M−0.7%4.31M after
May 14, 2025 (view filing)May 12-132 daysSchaeffer DaveCHAIRMAN, CEO, AND PRESIDENTSSale−54.0K$50.38−$2.72M−1.2%4.34M after2 lots
May 13, 2025 (view filing)May 13Same dayKennedy Sheryl LynnDirectorSSale−1.45K$50.19−$72.8K−12.6%10.0K after