Form4insider filings, from the source

Insider holders · CIK 0001158324

COGENT COMMUNICATIONS HOLDINGS, INC. · CCOI

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
Dave SchaefferChairman, President & CEO4,220,340—4,220,340Feb 22, 2018 · 4:41 pm ESTForm 4
Thaddeus Gerard WeedVICE PRESIDENT, CFO193,050—193,050Sep 3, 2026 · 9:45 am EDTForm 4
Richard LiebhaberDirector72,59573,795146,390Mar 12, 2019 · 2:43 pm EDTForm 4
Marc MontagnerDirector99,842—99,842Jun 30, 2026 · 5:03 pm EDTForm 4
Steven D BrooksDirector58,693—58,693Jul 1, 2026 · 4:52 pm EDTForm 4
Raymond B KummerCTO; VP Optical Transport49,640—49,640Jun 19, 2018 · 4:19 pm EDTForm 4
Ernest OrtegaChief Revenue Officer38,800—38,800Sep 17, 2015 · 9:29 am EDTForm 4
Robert N Beury Jr.VP & Chief Legal Officer36,440—36,440Mar 4, 2019 · 11:05 am ESTForm 4
Henry W KilmerVP OF NETWORK STRATEGY36,200—36,200Sep 15, 2026 · 5:50 pm EDTForm 4
Paul de SaDirector33,792—33,792Jul 1, 2026 · 11:21 am EDTForm 4
Timothy G OneillVP Field Engineering33,652—33,652Mar 13, 2019 · 5:24 pm EDTForm 4
Deneen C HowellDirector32,330—32,330Jul 1, 2026 · 5:17 pm EDTForm 4
James BubeckChief Revenue Officer31,372—31,372Mar 4, 2019 · 2:10 pm ESTForm 4
Eve N HowardDirector27,306—27,306Jul 1, 2026 · 11:21 am EDTForm 4
Blake BathDirector26,675—26,675Jan 2, 2019 · 3:36 pm ESTForm 4
Lewis H FergusonDirector24,539—24,539Jun 30, 2026 · 5:04 pm EDTForm 4
Tim WeingartenDirector22,861—22,861Jan 3, 2019 · 1:37 pm ESTForm 4
Sheryl Lynn KennedyDirector13,690—13,690Jun 30, 2026 · 5:03 pm EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.