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Cogent Communications Holdings, Inc. (CCOI)

Cogent Communications Holdings, Inc. (CCOI) Insider Trading

Directors, officers and holders of more than 10% of CCOI report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 189 transactions on file: 0 with code P, 13 with code S and 37 with other codes.

DateInsiderCodeShares
Sep 30, 2026Kennedy Sheryl LynnA Award3,445
Sep 30, 2026Howell Deneen CA Award3,445
Sep 30, 2026Montagner MarcA Award3,445
Sep 30, 2026Howard Eve NA Award3,445
Sep 30, 2026FERGUSON Lewis HA Award3,445
Sep 30, 2026de Sa PaulA Award3,445
Sep 30, 2026BROOKS STEVEN DA Award3,445
Sep 15, 2026KILMER HENRY WS Sale2,400
Sep 2, 2026WEED THADDEUS GERARDS Sale4,850
Jun 30, 2026de Sa PaulA Award3,445
Jun 30, 2026Montagner MarcA Award3,445
Jun 30, 2026Howell Deneen CA Award3,445
Jun 30, 2026FERGUSON Lewis HA Award3,445
Jun 30, 2026Howard Eve NA Award3,445
Jun 30, 2026Kennedy Sheryl LynnA Award3,445
Jun 30, 2026BROOKS STEVEN DA Award3,445
Jun 16, 2026WEED THADDEUS GERARDS Sale4,850
Jun 15, 2026KILMER HENRY WS Sale2,400
May 28, 2026FERGUSON Lewis HS Sale2,800
May 14, 2026Kennedy Sheryl LynnS Sale3,300
May 4, 2026SCHAEFFER DAVEA Award1,000,000
May 4, 2026SCHAEFFER DAVEG Gift1,000,000
May 4, 2026SCHAEFFER DAVEG Gift1,000,000
Apr 1, 2026SCHAEFFER DAVED Disposition58,667
Apr 1, 2026SCHAEFFER DAVEG Gift29,333
Apr 1, 2026SCHAEFFER DAVEG Gift29,333
Mar 6, 2026KILMER HENRY WS Sale2,400
Mar 5, 2026FERGUSON Lewis HS Sale2,206
Mar 5, 2026Kennedy Sheryl LynnS Sale3,300
Mar 5, 2026WEED THADDEUS GERARDS Sale4,850
Dec 31, 2025Howell Deneen CA Award3,388
Dec 31, 2025Harris Mark AndrewA Award5,000
Dec 31, 2025de Sa PaulA Award3,388
Dec 31, 2025Montagner MarcA Award3,388
Dec 31, 2025Chang John B.A Award100,000
Dec 31, 2025BROOKS STEVEN DA Award3,388
Dec 31, 2025WEED THADDEUS GERARDA Award19,400
Dec 31, 2025WEED THADDEUS GERARDA Award100,000
Dec 31, 2025Chang John B.A Award9,600
Dec 31, 2025FERGUSON Lewis HA Award3,388
Dec 31, 2025KILMER HENRY WA Award9,600
Dec 31, 2025SCHAEFFER DAVEA Award229,657
Dec 31, 2025Howard Eve NA Award3,388
Dec 31, 2025SCHAEFFER DAVEG Gift229,657
Dec 31, 2025SCHAEFFER DAVEG Gift229,657
Dec 31, 2025Harris Mark AndrewA Award100,000
Dec 31, 2025Kennedy Sheryl LynnA Award3,388
Dec 11, 2025WEED THADDEUS GERARDS Sale7,300
Dec 8, 2025KILMER HENRY WS Sale4,800
Dec 2, 2025FERGUSON Lewis HS Sale4,000

The full Form 4 history is on the CCOI company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.