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text: 144
  0001166976
  XXXXXXXX
  LIVE
  0001158324
  Cogent Communications Holdings, Inc.
  000-51829
  2450 N.  Street  N.W.
  Washington
  DC
  20037
  202-295-4200
  David Schaeffer
  Founder
  CEO
  Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue, 6th Floor
  New York
  NY
  10017
  25000
  1187000
  49337310
  06/04/2025
  NASDAQ
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  06/01/2025
  Vested restricted stock grant
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  N
  6000
  06/01/2025
  Compensation
  Common Stock
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  Vested restricted stock grant
  Issuer
  N
  10000
  12/01/2007
  Compensation
  Common Stock
  11/01/2007
  Vested restricted stock grant
  Issuer
  N
  9000
  11/01/2007
  Compensation
  N
  David Schaeffer
  C/o Cogent Communications Holdings Inc
  2450 N. Street N.W.
  Washington
  DC
  20037
  Common Stock
  03/14/2025
  52500
  3585299
  David Schaeffer
  C/o Cogent Communications Holdings Inc
  2450 N. Street N.W.
  Washington
  DC
  20037
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  11372
  569206
  David Schaeffer
  C/o Cogent Communications Holdings Inc
  2450 N. Street N.W.
  Washington
  DC
  20037
  Common Stock
  05/13/2025
  42628
  2147884
  David Schaeffer
  C/o Cogent Communications Holdings Inc
  2450 N. Street N.W.
  Washington
  DC
  20037
  Common Stock
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  30000
  1519146
  David Schaeffer
  C/o Cogent Communications Holdings Inc
  2450 N. Street N.W.
  Washington
  DC
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  2013036
  David Schaeffer
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  2450 N. Street N.W.
  Washington
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  2450 N. Street N.W.
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  C/o Cogent Communications Holdings Inc
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  C/o Cogent Communications Holdings Inc
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  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for David Schaeffer