Cogent Communications Group Inc

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Cogent Communications Group Inc
TickerCCOI
CIK #0001158324
CUSIP19239V302
SectorTechnology - Services-Prepackaged Software
Address1015 31St Street, Washington, DC 20007
Source [EDGAR]
CIK Filing 2011 - 2025
[0001158324] 10-K
[0001158324] 10-Q
[0001158324] 3
[0001158324] 4
[0001158324] 8-K
[0001158324] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Turtle Creek Asset Management Inc Cogent Communications Holdings Inc [2025-08-14] 0.0
Vaughan Nelson Investment Management LP Cogent Communications Holdings Inc [2023-02-03] 5.34
Renaissance Technologies LLC Cogent Communications Holdings Inc [2018-02-14] 6.04
FMR LLC Cogent Communications Holdings Inc [2015-02-13] 0.0
Sarbit Advisory Services Inc Cogent Communications Group Inc [2014-02-12] 6.62
Jennison Associates LLC Cogent Communications Group Inc [2014-02-06] 5.6
Prudential Financial Inc Cogent Communications Group Inc [2014-02-05] 5.6
Sarbit Advisory Services Inc Cogent Communications Group Inc [2013-02-14] 5.85
Vanguard Group Inc Cogent Communications Group Inc [2012-02-07] 5.31
Form 3/4/5 Filer 2011 - 2025
Schaeffer Dave
Cogent Communications Holdings Inc
Brooks Steven D
Montagner Marc
Kennedy Sheryl Lynn
Howell Deneen C
de Sa Paul
FERGUSON Lewis H
Howard Eve N
Kilmer Henry W
Weed Thaddeus Gerard
Bubeck James
Chang John B.
Bath Blake
Kapp David Allen
Danielson Jeffrey S
O'Connor Greg W
Kummer Raymond B
Wallace Sean R.
Katz Carolyn
ONeill Timothy G
Slagmuylder Jean-Michel F.F.
Weingarten Tim
Liebhaber Richard
Beury Robert N Jr
Ortega Ernest
Margalit EREL N
Karnes Jeffrey
Form 13F Holdings
Firm Period DFND Voting Shares
BlackRock, Inc. [2025-06-30] SOLE 6,398,296 6,480,544
Vanguard Group Inc [2025-06-30] SOLE 0 4,960,227
Turtle Creek Asset Management Inc [2025-06-30] SOLE 2,792,711 2,792,711
EdgePoint Investment Group Inc [2025-06-30] SOLE 2,279,440 2,279,440
State Street Corp [2025-06-30] DFND 1,609,601 1,788,235
Brown Advisory Inc [2025-06-30] DFND 1,171,767 1,454,101
Morgan Stanley [2025-06-30] DFND 1,213,426 1,244,015
Magnolia Group LLC [2025-06-30] SOLE 1,093,211 1,093,211
Geode Capital Management LLC [2025-06-30] DFND 1,060,367 1,060,367
MIG Capital LLC [2025-06-30] SOLE 1,029,237 1,029,237
Invesco Ltd. [2025-06-30] DFND 0 1,003,273
Capital World Investors [2025-06-30] DFND 955,288 955,288
FMR LLC [2025-06-30] DFND 888,926 894,848
Harspring Capital Management LLC [2025-06-30] SOLE 854,797 854,797
Reaves W H & Co Inc [2025-06-30] SOLE 791,748 819,953
Qube Research & Technologies Ltd [2025-06-30] SOLE 687,839 687,839
Broad Run Investment Management LLC [2025-06-30] SOLE 645,910 677,886
TYRO Capital Management LLC [2025-06-30] SOLE 636,895 636,895
Senator Investment Group LP [2025-06-30] SOLE 631,692 631,692
Newtyn Management LLC [2025-06-30] SOLE 625,000 625,000
DigitalBridge Group, Inc. [2025-06-30] DFND 582,974 582,974
Captrust Financial Advisors [2025-06-30] SOLE 507,856 523,836
Bank of New York Mellon Corp [2025-06-30] DFND 498,757 518,362
14B Captial Management LP [2025-06-30] SOLE 504,000 504,000
Northern Trust Corp [2025-06-30] DFND 492,041 496,049
Charles Schwab Investment Management Inc [2025-06-30] SOLE 494,900 494,924
Raymond James Financial Inc [2025-06-30] DFND 476,706 494,051
SG Capital Management LLC [2025-06-30] SOLE 463,250 463,250
Renaissance Technologies LLC [2025-06-30] SOLE 458,056 458,056
Citadel Advisors LLC [2025-06-30] DFND 403,745 403,745
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