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 - 2026
[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
Park West Asset Management LLC Cogent Communications Holdings Inc [2026-05-22] 0.0
Vanguard Portfolio Management LLC Cogent Communications Holdings Inc [2026-04-29] 0.0
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 - 2026
Cogent Communications Holdings Inc
Brooks Steven D
Howell Deneen C
de Sa Paul
Howard Eve N
FERGUSON Lewis H
Montagner Marc
Kennedy Sheryl Lynn
Weed Thaddeus Gerard
Kilmer Henry W
Schaeffer Dave
Harris Mark Andrew
Chang John B
Bubeck James
Bath Blake
Kapp David Allen
Danielson Jeffrey S
O'Connor Greg W
Kummer Raymond B
Wallace Sean Robert
Katz Carolyn
ONeill Timothy G
Slagmuylder Jean-Michel FF
Weingarten Tim
Liebhaber Richard
Beury Robert N Jr
Ortega Ernest
Margalit EREL N
Karnes Jeffrey
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Brooks Steven D
common stock
2026-03-31 Grant 3,445 $0.00
Montagner Marc
common stock
2026-03-31 Grant 3,445 $0.00
FERGUSON Lewis H
common stock
2026-03-31 Grant 3,445 $0.00
Kennedy Sheryl Lynn
common stock
2026-03-31 Grant 3,445 $0.00
Howard Eve N
common stock
2026-03-31 Grant 3,445 $0.00
Howell Deneen C
common stock
2026-03-31 Grant 3,445 $0.00
de Sa Paul
common stock
2026-03-31 Grant 3,445 $0.00
Kilmer Henry W
common stock
2026-03-06 Sell 2,400 $23.35 56,040
FERGUSON Lewis H
common stock
2026-03-05 Sell 2,206 $23.03 50,804
Weed Thaddeus Gerard
common stock
2026-03-05 Sell 4,850 $22.63 109,756
Kennedy Sheryl Lynn
common stock
2026-03-05 Sell 3,300 $22.99 75,867
Harris Mark Andrew
common stock
2025-12-31 Grant 100,000 $0.00
Chang John B
common stock
2025-12-31 Grant 100,000 $0.00
Montagner Marc
common stock
2025-12-31 Grant 3,388 $0.00
Schaeffer Dave
common stock
2025-12-31 Grant 229,657 $0.00
Kilmer Henry W
common stock
2025-12-31 Grant 9,600 $0.00
Schaeffer Dave
common stock
2025-12-31 Gift 229,657 $0.00
Schaeffer Dave
common stock
2025-12-31 Gift 229,657 $0.00
Weed Thaddeus Gerard
common stock
2025-12-31 Grant 100,000 $0.00
Brooks Steven D
common stock
2025-12-31 Grant 3,388 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 240 54,319,297
2025-12-31 255 51,563,575
2025-09-30 275 52,368,885
2025-06-30 301 48,636,100
2025-03-31 325 45,542,282
2024-12-31 321 46,000,521
2024-09-30 319 47,621,489
2024-06-30 311 46,307,718
2024-03-31 318 43,983,426
2023-12-31 312 42,455,609
2023-09-30 310 39,671,972
2023-06-30 286 39,083,381
Form 13F Holdings
Firm Period DFND Voting Shares
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 154,019 154,019
Salvus Wealth Management LLC [2026-06-30] SOLE 3,148 34,826
Shrier Wealth Management LLC [2026-06-30] SOLE 0 23,453
Louisiana State Employees Retirement System [2026-06-30] SOLE 21,000 21,000
First Citizens Bank & Trust Co [2026-06-30] SOLE 20,855 20,855
Envestnet Portfolio Solutions Inc [2026-06-30] SOLE 20,060 20,060
Alaska Retirement Management Board [2026-06-30] SOLE 17,088 17,088
Yousif Capital Management LLC [2026-06-30] SOLE 2,900 12,743
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 11,328 11,328
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 118 11,172
Farther Finance Advisors LLC [2026-06-30] SOLE 0 4,086
Security National Bank [2026-06-30] SOLE 1,500 1,500
Versant Capital Management Inc [2026-06-30] SOLE 875 875
Gamma Investing LLC [2026-06-30] DFND 796 796
IFP Advisors LLC [2026-06-30] SOLE 434 434
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 111 111
True Wealth Design LLC [2026-06-30] SOLE 0 91
Physician Wealth Advisors Inc [2026-06-30] SOLE 0 30
Farmers & Merchants Investments Inc [2026-06-30] SOLE 27 27
JFS Wealth Advisors LLC [2026-06-30] SOLE 0 8
Ares Financial Consulting LLC [2026-06-30] SOLE 7 7
First Horizon Corp [2026-06-30] DFND 0 6
Signature Resources Capital Management LLC [2026-06-30] SOLE 0 3
Davis Capital Management [2026-06-30] SOLE 3 3
Abound Wealth Management [2026-06-30] SOLE 0 2
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