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Disclosery

CCOI COGENT COMM HOLDINGS INC

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COM NEW (common), issuer CIK 1158324

245 managers (247 13F filers) reported a position in CCOI shares at 2025-12-31, 48,833,809 shares in all. 44 filers opened a position and 72 filers sold out during the quarter.

Managers
245
13F filers
247
New
44
Added
88
Reduced
79
Sold out
72
Shares held by filers
48,833,809

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.7,191,017$155M<0.01%+298,92113F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC5,580,271$120M<0.01%+217,45013F-HRTimelineGroup
TURTLE CREEK ASSET MANAGEMENT INC.4,036,847$87M3.83%-567,08613F-HRTimeline
EdgePoint Investment Group Inc.2,283,378$49.2M0.4%+1,50013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,070,132$44.6M<0.01%+132,45413F-HRTimelineGroup
Park West Asset Management LLC1,409,096$30.4M2.56%new13F-HRTimeline
Harspring Capital Management, LLC1,402,500$30.2M11.22%+527,50013F-HRTimeline
Newtyn Management, LLC1,400,000$30.2M3.19%+700,00013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,252,451$27M<0.01%-548,08213F-HR/ATimelineGroup
MAGNOLIA GROUP, LLC1,246,337$26.9M4.43%-26,00013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,201,461$25.9M<0.01%+55,04413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,179,231$25.4M<0.01%+31,72413F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP1,177,398$25.4M0.02%+547,18813F-HRTimelineGroup
FMR LLCin group FMR LLC815,939$17.6M<0.01%+592,56713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co666,932$14.4M<0.01%+91,79813F-HRTimelineGroup
Broad Run Investment Management, LLC663,700$14.3M2.66%+19,67013F-HRTimeline
BlackBarn Capital Partners LP650,000$14M5.02%+275,00013F-HRTimeline
DigitalBridge Group, Inc.in group DigitalBridge Group, Inc.636,169$13.7M1.06%-213,90413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC614,549$13.2M<0.01%+200,28613F-HR/ATimelineGroup
CenterBook Partners LP601,735$13M0.63%+431,97413F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC600,000$12.9M1.08%-50,00013F-HRTimelineGroup
MIG Capital, LLC569,220$12.3M2.08%new13F-HRTimeline
Oakum Bay Capital LLC543,582$11.7M6.07%13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA498,966$10.8M<0.01%+326,60713F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP498,973$10.8M<0.01%-6,30613F-HRTimelineGroup
GILDER GAGNON HOWE & CO LLC494,108$10.7M0.11%+321,62013F-HRTimeline
Palliser Capital (UK) Ltd426,184$9.19M6.26%+207,43413F-HRTimeline
UBS Group AGgroup of 2 filers holding398,302$8.59M-126,117Timeline
FRONTIER CAPITAL MANAGEMENT CO LLC345,803$7.46M0.08%+83,78313F-HRTimeline
Man Group plcin group Man Group plc326,168$7.03M0.01%+314,45713F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.280,136$6.04M<0.01%-112,99313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp276,933$5.97M<0.01%-257,11613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.262,068$5.65M<0.01%-1,140,54413F-HRTimelineGroup
REAVES W H & CO INC259,098$5.59M0.1%-164,00013F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd242,600$5.23M0.68%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC236,836$5.11M0.01%-198,04213F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding227,044$4.9M-3,570Timeline
BOOTHBAY FUND MANAGEMENT, LLC220,028$4.74M0.12%-92,59813F-HRTimeline
Granahan Investment Management, LLC217,025$4.68M0.2%+108,03613F-HRTimeline
Redmond Asset Management, LLC200,082$4.31M1.1%+62,82813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc198,994$4.29M<0.01%-76313F-HRTimelineGroup
Advisors Asset Management, Inc.181,650$3.92M0.07%-12,77513F-HR/ATimeline
Nishkama Capital, LLC179,661$3.87M0.52%+73,95613F-HRTimeline
BLAIR WILLIAM & CO/IL177,655$3.83M0.01%-63,14113F-HRTimeline
14B Captial Management LP170,000$3.67M2.95%-279,63313F-HRTimeline
Nuveen, LLCin group TIAA169,700$3.66M<0.01%+5,00513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO168,603$3.64M<0.01%-371,16713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC167,124$3.6M<0.01%+85,21913F-HRTimelineGroup
Edgestream Partners, L.P.165,979$3.58M0.1%+92,87413F-HRTimeline
Public Sector Pension Investment Board164,692$3.55M0.01%-20,71013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC159,990$3.45M<0.01%+130,14813F-HRTimelineGroup
BLUEFIN CAPITAL MANAGEMENT, LLC158,005$3.41M0.96%new13F-HRTimeline
RHUMBLINE ADVISERS137,461$2.96M<0.01%+19613F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…133,453$2.88M<0.01%+119,07513F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding125,706$2.71M+61,786Timeline
Swiss National Bank97,000$2.09M<0.01%+6,10013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC89,031$1.92M<0.01%-98,95613F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC88,314$1.9M<0.01%+22,74113F-HRTimelineGroup
SIMPLEX TRADING, LLC84,895$1.83M0.05%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC84,205$1.82M<0.01%-6,83713F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…81,643$1.76M0.01%+4,99813F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN78,661$1.7M<0.01%-19,27513F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD75,154$1.62M<0.01%-47,36413F-HRTimeline
MYDA Advisors LLC75,000$1.62M0.46%+66,00013F-HRTimeline
Vest Financial, LLC74,634$1.61M0.02%+50,27613F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…73,710$1.59M<0.01%+22,70013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS70,345$1.52M<0.01%+38,32613F-HRTimelineGroup
SG Americas Securities, LLC68,025$1.47M<0.01%+60,42813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\65,741$1.42M<0.01%+5,18713F-HRTimelineGroup
Skylands Capital, LLC61,575$1.33M0.18%-44,75013F-HRTimeline
Quantinno Capital Management LP61,207$1.32M<0.01%+53,32813F-HRTimeline
ALLIANCEBERNSTEIN L.P.57,464$1.24M<0.01%+7,94713F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC52,952$1.14M<0.01%-953,37313F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/51,298$1.11M<0.01%+11,36213F-HRTimeline
HRT FINANCIAL LP49,170$1.06M<0.01%new13F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC46,412$1M<0.01%+14,68513F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…46,077$993K<0.01%+19713F-HRTimeline
Bridgefront Capital, LLC45,198$974K0.24%+35,73213F-HRTimeline
Caption Management, LLC45,000$970K0.04%+22,50013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC44,945$969K<0.01%-2,86413F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC43,813$945K<0.01%-51,48313F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co39,225$846K<0.01%-16,65513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC38,783$836K<0.01%-40,95613F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd35,604$768K0.03%new13F-HRTimelineGroup
Dynamic Technology Lab Private Ltd35,226$759K0.17%new13F-HRTimeline
PRAIRIEVIEW WEALTH PARTNERS, LLC34,742$749K0.68%-20,00013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC34,468$743K0.01%new13F-HRTimelineGroup
J. Goldman & Co LP33,500$722K0.03%new13F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…32,614$703K<0.01%-1,67313F-HRTimelineGroup
Aquatic Capital Management LLC31,255$674K0.02%+29,19813F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC29,732$641K<0.01%-2,39113F-HRTimelineGroup
TrueMark Investments, LLCin group TrueMark Investments, LLC29,662$640K0.12%new13F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…28,868$622K<0.01%+9,90913F-HRTimeline
Clear Harbor Asset Management, LLC27,716$598K0.04%+14,72613F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…26,100$563K<0.01%013F-HRTimelineGroup
State of Alaska, Department of Revenue25,523$550K0.01%+25413F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…24,594$530K0.04%+15,98113F-HRTimelineGroup
Creative Planningin group Creative Planning24,576$530K<0.01%+1,80613F-HRTimelineGroup
Pekin Hardy Strauss, Inc.24,050$519K0.05%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC23,739$512K<0.01%-2,29913F-HRTimelineGroup
ALTFEST L J & CO INC23,265$502K0.05%new13F-HRTimeline
ARS Investment Partners, LLC23,000$496K0.03%+5,29213F-HRTimeline
Texas Yale Capital Corp.23,000$496K0.02%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…22,666$489K<0.01%-163,96513F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…22,410$483K<0.01%-11,80713F-HRTimelineGroup
Verition Fund Management LLC21,900$472K<0.01%-231,58613F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD21,880$472K<0.01%-2,64513F-HRTimelineGroup
Louisiana State Employees Retirement Sy…21,700$468K0.01%-10013F-HRTimeline
Brooklyn Investment Group21,068$462K0.02%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson21,111$455K<0.01%013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …20,829$449K<0.01%-1,91013F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd20,340$439K0.01%new13F-HRTimeline
Farringdon Capital, Ltd.20,106$433K0.11%-3,26513F-HRTimeline
RBF Capital, LLC20,000$431K0.02%013F-HR/ATimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.19,813$427K<0.01%+19,65413F-HRTimelineGroup
GROUP ONE TRADING LLC19,707$425K0.01%+12,81913F-HRTimeline
Hennion & Walsh Asset Management, Inc.19,337$417K0.01%-9713F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC19,286$416K0.02%new13F-HRTimelineGroup
LPL Financial LLC19,191$414K<0.01%-16,43513F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV18,857$407K<0.01%+7,07113F-HRTimeline
TWINBEECH CAPITAL LP18,473$398K0.03%new13F-HRTimeline
Salvus Wealth Management, LLC18,368$396K0.22%-8,50513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC17,599$379K<0.01%-18,78013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP16,841$363K<0.01%+2,15013F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND15,769$340K<0.01%013F-HRTimeline
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …15,466$333K<0.01%-62,89513F-HRTimelineGroup
Handelsbanken Fonder AB14,030$302K<0.01%013F-HRTimeline
AMALGAMATED BANK13,848$299K<0.01%+21313F-HRTimeline
Police & Firemen's Retirement System of…13,586$293K<0.01%+1,13913F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC12,598$291K<0.01%-1,92013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM13,473$290K<0.01%-35113F-HRTimeline
Bridgewater Associates, LP12,963$279K<0.01%new13F-HRTimeline
Global Endowment Management, LPin group Global Endowment Management, …12,297$265K0.03%+1,83213F-HRTimelineGroup
State of Tennessee, Department of Treas…10,836$263K<0.01%+29413F-HRTimeline
Navis Wealth Advisors, LLC12,000$259K0.11%new13F-HRTimeline
Assenagon Asset Management S.A.11,855$256K<0.01%new13F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…11,754$254K<0.01%-30813F-HRTimeline
AlphaQuest LLC11,744$253K0.01%+10,56413F-HRTimeline
COMERICA BANK11,210$242K<0.01%-2,69813F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND10,886$235K<0.01%+16313F-HRTimeline
NISA INVESTMENT ADVISORS, LLC10,820$233K<0.01%+2,85013F-HRTimeline
Scientech Research LLC10,710$231K0.15%new13F-HRTimeline
RESOURCES MANAGEMENT CORP /CT/ /ADV10,527$227K0.03%-85,98013F-HRTimeline
IMC-Chicago, LLC10,444$225K<0.01%new13F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.10,416$225K0.03%new13F-HRTimeline
KLP KAPITALFORVALTNING AS10,300$222K<0.01%013F-HRTimeline
Voleon Capital Management LP10,029$216K<0.01%new13F-HRTimeline
SHRIER WEALTH MANAGEMENT, LLC10,000$216K0.08%13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO9,675$209K<0.01%-22,61413F-HRTimelineGroup
ProShare Advisors LLC9,471$204K<0.01%-167,64213F-HRTimeline
NATIXISin group Natixis Investment Managers7,400$160K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…6,566$142K<0.01%-3,91513F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…6,256$135K<0.01%013F-HRTimeline
Ensign Peak Advisors, Inc4,109$88.6K<0.01%-6,40013F-HR/ATimeline
Ameritas Investment Partners, Inc.group of 2 filers holding3,763$81.1K-50Timeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,397$73.3K<0.01%-29,36213F-HRTimelineGroup
Covestor Ltd3,118$67K0.04%+41313F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding2,910$62.7K-61,965Timeline
Federation des caisses Desjardins du Qu…2,850$61.4K<0.01%+42513F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\2,744$59.2K<0.01%-7,64913F-HRTimelineGroup
SBI Securities Co., Ltd.2,576$55.5K<0.01%-3,66213F-HRTimeline
North Star Investment Management Corp.2,298$49.5K<0.01%013F-HRTimeline
GAMMA Investing LLC2,262$48.8K<0.01%+1,86313F-HRTimeline
Farther Finance Advisors, LLC2,092$45.1K<0.01%+75613F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP2,063$44.5K<0.01%+89013F-HRTimelineGroup
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC1,974$42.6K<0.01%new13F-HRTimelineGroup
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…1,910$41.2K0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC1,875$40K<0.01%-1,35413F-HRTimelineGroup
Arax Advisory Partners1,821$39.3K<0.01%-1,54813F-HRTimeline
KBC Group NVin group KBC Group NV1,761$38K<0.01%013F-HRTimelineGroup
HANTZ FINANCIAL SERVICES, INC.1,486$32K<0.01%+1,12713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Caitong International Asset Management …1,278$27.6K0.01%new13F-HR/ATimeline
Pinnacle Wealth Planning Services, Inc.1,232$26.6K<0.01%new13F-HRTimeline
Versant Capital Management, Inc1,093$23.6K<0.01%-46413F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…1,009$21.8K<0.01%+413F-HR/ATimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…912$19.7K<0.01%+33613F-HRTimeline
MAI Capital Management895$19.3K<0.01%-1,32013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …874$19K<0.01%+29713F-HRTimelineGroup
Quarry LP860$18.5K<0.01%+15613F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp824$17.8K<0.01%013F-HRTimelineGroup
PIN OAK INVESTMENT ADVISORS INC590$14K0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…587$12.7K<0.01%-1,26513F-HRTimelineGroup
SIGNATUREFD, LLC558$12K<0.01%+18713F-HRTimeline
Salomon & Ludwin, LLC566$11K<0.01%+22013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC511$11K<0.01%-3,44213F-HRTimelineGroup
DANSKE BANK A/S500$10.8K<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…491$10.6K<0.01%+6113F-HRTimelineGroup
Parallel Advisors, LLC464$10K<0.01%-10313F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC234$9.41K<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…380$8.19K<0.01%-1113F-HRTimeline
EMERALD ADVISERS, LLCgroup of 2 filers holding371$8K-231,897Timeline
Allworth Financial LP370$7.98K<0.01%+18913F-HRTimeline
BankPlus Trust Departmentin group BankPlus Trust Department362$7.8K<0.01%-30013F-HRTimelineGroup
Sterling Capital Management LLC316$6.81K<0.01%+20713F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK300$6.47K<0.01%+27613F-HRTimelineGroup
Sunbelt Securities, Inc.278$5.99K<0.01%-813F-HRTimeline
Caitlin John, LLC264$5.69K<0.01%-3113F-HRTimeline
LANARK FINANCIAL, INC.230$4.96K<0.01%013F-HRTimeline
UMB Bank, n.a.226$4.87K<0.01%+6213F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…195$4.21K<0.01%-47613F-HR/ATimelineGroup

Events

  • BlackRock, Inc. reported 3,932,477 CCOI shares, 7.7% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-05. 0002012383-26-003317

    Accepted , ingested