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Hedge Funds Tracker

CCOI

COGENT COMMUNICATIONS HOLDINGS, INC.
Funds Buying9
Funds Selling19
# Funds Holding28
Total Value Held$130.2M

Current Holders

FundSharesValue% of PortfolioAs OfLatest MoveLatest Share Change
Citadel Advisors1,628,441$22.6M0%2026-06-30ADDED+550,061
Capital World Investors528,382$20.3M0%2025-09-30CLOSED-528,382
Senator Investment Group483,295$18.5M0%2025-09-30CLOSED-483,295
Geode Capital Management1,245,445$17.3M0%2026-06-30ADDED+39,810
Charles Schwab Investment Management805,244$11.2M0%2026-06-30ADDED+45,127
AQR Capital Management615,561$8.5M0%2026-06-30ADDED+405,652
Norges Bank Investment Management64,795$5.0M0%2024-12-31CLOSED-64,795
Marshall Wace104,906$4.0M0%2025-09-30CLOSED-104,906
D. E. Shaw & Co.284,694$4.0M0%2026-06-30TRIMMED-494,421
Squarepoint Ops226,035$3.1M0%2026-06-30ADDED+174,787
Irenic Capital Management40,510$2.6M0%2024-03-31CLOSED-40,510
Qube Research & Technologies61,841$2.4M0%2025-09-30CLOSED-61,841
Caxton Associates145,106$2.0M0%2026-06-30ADDED+92,227
Man Group90,227$1.7M0%2026-03-31CLOSED-90,227
Millennium Management119,138$1.7M0%2026-06-30TRIMMED-109,258
Schonfeld Strategic Advisors86,639$1.2M0%2026-06-30NEW+86,639
Walleye Capital62,170$0.9M0%2026-06-30TRIMMED-177,387
Renaissance Technologies49,231$0.7M0%2026-06-30TRIMMED-17,900
Victory Capital Management46,394$0.6M0%2026-06-30ADDED+26,874
Verition Fund Management21,900$0.5M0%2025-12-31CLOSED-21,900
Point72 Asset Management29,200$0.4M0%2026-06-30TRIMMED-119,200
Two Sigma Investments21,947$0.3M0%2026-06-30NEW+21,947
Bridgewater Associates12,963$0.3M0%2025-12-31CLOSED-12,963
Voleon Capital Management10,029$0.2M0%2025-12-31CLOSED-10,029
Neuberger Berman3,450$0.2M0%2025-03-31CLOSED-3,450
Fisher Asset Management226$0.0M0%2023-12-31CLOSED-226
1832 Asset Management141$0.0M0%2024-06-30CLOSED-141
Loomis Sayles121,751$0.0M0%2025-03-31CLOSED-121,751

Move History

QuarterFundActionPrev SharesNew SharesValue Change
2026-03-31 → 2026-06-30Renaissance TechnologiesTRIMMED67,13149,231-$0.6M
2026-03-31 → 2026-06-30Citadel AdvisorsADDED1,078,3801,628,441$2.3M
2026-03-31 → 2026-06-30Point72 Asset ManagementTRIMMED148,40029,200-$2.4M
2026-03-31 → 2026-06-30D. E. Shaw & Co.TRIMMED779,115284,694-$10.7M
2026-03-31 → 2026-06-30Two Sigma InvestmentsNEW021,947$0.3M
2026-03-31 → 2026-06-30Millennium ManagementTRIMMED228,396119,138-$2.6M
2026-03-31 → 2026-06-30AQR Capital ManagementADDED209,909615,561$4.6M
2026-03-31 → 2026-06-30Geode Capital ManagementADDED1,205,6351,245,445-$5.4M
2026-03-31 → 2026-06-30Charles Schwab Investment ManagementADDED760,117805,244-$3.1M
2026-03-31 → 2026-06-30Victory Capital ManagementADDED19,52046,394$0.3M
2026-03-31 → 2026-06-30Caxton AssociatesADDED52,879145,106$1.0M
2026-03-31 → 2026-06-30Walleye CapitalTRIMMED239,55762,170-$3.7M
2026-03-31 → 2026-06-30Squarepoint OpsADDED51,248226,035$2.2M
2026-03-31 → 2026-06-30Schonfeld Strategic AdvisorsNEW086,639$1.2M
2026-03-31 → 2026-06-30Man GroupCLOSED90,2270-$1.7M
2025-12-31 → 2026-03-31Renaissance TechnologiesTRIMMED89,03167,131-$0.7M
2025-12-31 → 2026-03-31Citadel AdvisorsADDED470,6241,078,380$10.2M
2025-12-31 → 2026-03-31Bridgewater AssociatesCLOSED12,9630-$0.3M
2025-12-31 → 2026-03-31Point72 Asset ManagementADDED105,100148,400$0.5M
2025-12-31 → 2026-03-31D. E. Shaw & Co.ADDED327,536779,115$7.6M
2025-12-31 → 2026-03-31Millennium ManagementADDED38,783228,396$3.5M
2025-12-31 → 2026-03-31AQR Capital ManagementADDED29,732209,909$3.3M
2025-12-31 → 2026-03-31Geode Capital ManagementADDED1,179,2311,205,635-$2.7M
2025-12-31 → 2026-03-31Charles Schwab Investment ManagementADDED666,932760,117-$0.1M
2025-12-31 → 2026-03-31Victory Capital ManagementTRIMMED46,41219,520-$0.6M
2025-12-31 → 2026-03-31Caxton AssociatesNEW052,879$1.0M
2025-12-31 → 2026-03-31Verition Fund ManagementCLOSED21,9000-$0.5M
2025-12-31 → 2026-03-31Walleye CapitalADDED208,408239,557$0.0M
2025-12-31 → 2026-03-31Squarepoint OpsNEW051,248$1.0M
2025-12-31 → 2026-03-31Voleon Capital ManagementCLOSED10,0290-$0.2M
2025-12-31 → 2026-03-31Man GroupTRIMMED326,16890,227-$5.3M
2025-09-30 → 2025-12-31Renaissance TechnologiesTRIMMED187,98789,031-$5.3M
2025-09-30 → 2025-12-31Citadel AdvisorsADDED282,805470,624-$0.7M
2025-09-30 → 2025-12-31Bridgewater AssociatesNEW012,963$0.3M
2025-09-30 → 2025-12-31Point72 Asset ManagementNEW0105,100$2.3M
2025-09-30 → 2025-12-31D. E. Shaw & Co.TRIMMED415,529327,536-$8.9M
2025-09-30 → 2025-12-31Millennium ManagementTRIMMED79,73938,783-$2.2M
2025-09-30 → 2025-12-31AQR Capital ManagementTRIMMED32,12329,732-$0.6M
2025-09-30 → 2025-12-31Marshall WaceCLOSED104,9060-$4.0M
2025-09-30 → 2025-12-31Senator Investment GroupCLOSED483,2950-$18.5M
2025-09-30 → 2025-12-31Geode Capital ManagementADDED1,147,5071,179,231-$18.6M
2025-09-30 → 2025-12-31Capital World InvestorsCLOSED528,3820-$20.3M
2025-09-30 → 2025-12-31Charles Schwab Investment ManagementADDED575,134666,932-$7.7M
2025-09-30 → 2025-12-31Victory Capital ManagementADDED31,72746,412-$0.2M
2025-09-30 → 2025-12-31Verition Fund ManagementTRIMMED253,48621,900-$9.2M
2025-09-30 → 2025-12-31Walleye CapitalTRIMMED249,920208,408-$5.1M
2025-09-30 → 2025-12-31Schonfeld Strategic AdvisorsCLOSED36,9360-$1.4M
2025-09-30 → 2025-12-31Voleon Capital ManagementNEW010,029$0.2M
2025-09-30 → 2025-12-31Qube Research & TechnologiesCLOSED61,8410-$2.4M
2025-09-30 → 2025-12-31Man GroupADDED11,711326,168$6.6M
2025-06-30 → 2025-09-30Renaissance TechnologiesTRIMMED458,056187,987-$14.9M
2025-06-30 → 2025-09-30Citadel AdvisorsTRIMMED403,745282,805-$8.6M
2025-06-30 → 2025-09-30D. E. Shaw & Co.ADDED21,900415,529$14.9M
2025-06-30 → 2025-09-30Millennium ManagementADDED21,03979,739$2.0M
2025-06-30 → 2025-09-30AQR Capital ManagementADDED5,04832,123$1.0M
2025-06-30 → 2025-09-30Marshall WaceNEW0104,906$4.0M
2025-06-30 → 2025-09-30Senator Investment GroupTRIMMED631,692483,295-$11.9M
2025-06-30 → 2025-09-30Geode Capital ManagementADDED1,060,3671,147,507-$7.1M
2025-06-30 → 2025-09-30Capital World InvestorsTRIMMED955,288528,382-$25.8M
2025-06-30 → 2025-09-30Charles Schwab Investment ManagementADDED494,924575,134-$1.8M
2025-06-30 → 2025-09-30Victory Capital ManagementADDED7,88931,727$0.8M
2025-06-30 → 2025-09-30Verition Fund ManagementADDED141,827253,486$2.9M
2025-06-30 → 2025-09-30Walleye CapitalADDED128,600249,920$3.4M
2025-06-30 → 2025-09-30Squarepoint OpsCLOSED24,9210-$1.2M
2025-06-30 → 2025-09-30Schonfeld Strategic AdvisorsNEW036,936$1.4M
2025-06-30 → 2025-09-30Qube Research & TechnologiesTRIMMED687,83961,841-$30.8M
2025-06-30 → 2025-09-30Man GroupNEW011,711$0.4M
2025-03-31 → 2025-06-30Renaissance TechnologiesTRIMMED644,415458,056-$17.4M
2025-03-31 → 2025-06-30Citadel AdvisorsADDED182,936403,745$8.2M
2025-03-31 → 2025-06-30D. E. Shaw & Co.NEW021,900$1.1M
2025-03-31 → 2025-06-30Millennium ManagementTRIMMED35,69921,039-$1.2M
2025-03-31 → 2025-06-30AQR Capital ManagementADDED3,2985,048$0.0M
2025-03-31 → 2025-06-30Marshall WaceCLOSED4,6720-$0.3M
2025-03-31 → 2025-06-30Neuberger BermanCLOSED3,4500-$0.2M
2025-03-31 → 2025-06-30Senator Investment GroupADDED586,474631,692-$5.5M
2025-03-31 → 2025-06-30Geode Capital ManagementADDED1,040,3121,060,367-$12.7M
2025-03-31 → 2025-06-30Loomis SaylesCLOSED121,7510-$0.0M
2025-03-31 → 2025-06-30Charles Schwab Investment ManagementTRIMMED503,724494,924-$7.0M
2025-03-31 → 2025-06-30Victory Capital ManagementTRIMMED12,6207,889-$0.4M
2025-03-31 → 2025-06-30Verition Fund ManagementADDED108,515141,827$0.2M
2025-03-31 → 2025-06-30Walleye CapitalNEW0128,600$6.2M
2025-03-31 → 2025-06-30Squarepoint OpsNEW024,921$1.2M
2025-03-31 → 2025-06-30Schonfeld Strategic AdvisorsCLOSED8,8310-$0.5M
2024-12-31 → 2025-06-30Qube Research & TechnologiesNEW0687,839$33.2M
2024-12-31 → 2025-03-31Renaissance TechnologiesTRIMMED739,756644,415-$17.5M
2024-12-31 → 2025-03-31Citadel AdvisorsTRIMMED402,533182,936-$19.8M
2024-12-31 → 2025-03-31D. E. Shaw & Co.CLOSED18,4000-$1.4M
2024-12-31 → 2025-03-31Millennium ManagementADDED4,52835,699$1.8M
2024-12-31 → 2025-03-31AQR Capital ManagementNEW03,298$0.2M
2024-12-31 → 2025-03-31Norges Bank Investment ManagementCLOSED64,7950-$5.0M
2024-12-31 → 2025-03-31Marshall WaceNEW04,672$0.3M
2024-12-31 → 2025-03-31Neuberger BermanNEW03,450$0.2M
2024-12-31 → 2025-03-31Senator Investment GroupADDED583,640586,474-$9.0M
2024-12-31 → 2025-03-31Geode Capital ManagementADDED1,012,9271,040,312-$14.3M
2024-12-31 → 2025-03-31Capital World InvestorsTRIMMED981,623955,288-$17.1M
2024-12-31 → 2025-03-31Loomis SaylesADDED91,910121,751$0.0M
2024-12-31 → 2025-03-31Charles Schwab Investment ManagementTRIMMED509,344503,724-$8.4M
2024-12-31 → 2025-03-31Victory Capital ManagementTRIMMED49,03312,620-$3.0M
2024-12-31 → 2025-03-31Verition Fund ManagementTRIMMED156,890108,515-$5.4M
2024-12-31 → 2025-03-31Walleye CapitalCLOSED10,2000-$0.8M
2024-12-31 → 2025-03-31Schonfeld Strategic AdvisorsNEW08,831$0.5M
2024-09-30 → 2024-12-31Renaissance TechnologiesTRIMMED895,156739,756-$10.9M
2024-09-30 → 2024-12-31Citadel AdvisorsTRIMMED882,257402,533-$36.0M
2024-09-30 → 2024-12-31D. E. Shaw & Co.ADDED14,90018,400$0.3M
2024-09-30 → 2024-12-31Millennium ManagementTRIMMED30,8914,528-$2.0M
2024-09-30 → 2024-12-31Norges Bank Investment ManagementNEW064,795$5.0M
2024-09-30 → 2024-12-31Marshall WaceCLOSED28,1430-$2.1M
2024-09-30 → 2024-12-31Neuberger BermanCLOSED6,8660-$0.5M
2024-09-30 → 2024-12-31Senator Investment GroupTRIMMED664,178583,640-$5.4M
2024-09-30 → 2024-12-31Geode Capital ManagementTRIMMED1,014,3221,012,927$1.1M
2024-09-30 → 2024-12-31Loomis SaylesNEW091,910$0.0M
2024-09-30 → 2024-12-31Charles Schwab Investment ManagementADDED497,486509,344$1.5M
2024-09-30 → 2024-12-31Victory Capital ManagementTRIMMED138,33549,033-$6.7M
2024-09-30 → 2024-12-31Verition Fund ManagementADDED145,223156,890$1.1M
2024-09-30 → 2024-12-31Walleye CapitalTRIMMED53,59210,200-$3.3M
2024-09-30 → 2024-12-31Squarepoint OpsCLOSED43,9370-$3.3M
2024-09-30 → 2024-12-31Man GroupCLOSED11,1970-$0.9M
2024-06-30 → 2024-09-30Renaissance TechnologiesTRIMMED1,086,256895,156$6.7M
2024-06-30 → 2024-09-30Citadel AdvisorsADDED210,694882,257$55.1M
2024-06-30 → 2024-09-30D. E. Shaw & Co.NEW014,900$1.1M
2024-06-30 → 2024-09-30Millennium ManagementNEW030,891$2.3M
2024-06-30 → 2024-09-30Norges Bank Investment ManagementCLOSED129,3240-$7.3M
2024-06-30 → 2024-09-30Marshall WaceADDED20,20028,143$1.0M
2024-06-30 → 2024-09-30Neuberger BermanTRIMMED20,9036,866-$0.7M
2024-06-30 → 2024-09-30Senator Investment GroupTRIMMED716,768664,178$10.0M
2024-06-30 → 2024-09-30Geode Capital ManagementADDED1,011,2291,014,322$19.9M
2024-06-30 → 2024-09-30Charles Schwab Investment ManagementADDED476,057497,486$10.9M
2024-06-30 → 2024-09-30Victory Capital ManagementTRIMMED148,387138,335$2.1M
2024-06-30 → 2024-09-30Verition Fund ManagementADDED61,407145,223$7.6M
2024-06-30 → 2024-09-30Walleye CapitalTRIMMED194,61953,592-$6.9M
2024-06-30 → 2024-09-30Squarepoint OpsTRIMMED71,47643,937-$0.7M
2024-06-30 → 2024-09-30Schonfeld Strategic AdvisorsCLOSED3,9000-$0.2M
2024-06-30 → 2024-09-30Qube Research & TechnologiesCLOSED105,1630-$5.9M
2024-06-30 → 2024-09-30Man GroupNEW011,197$0.9M
2024-06-30 → 2024-09-301832 Asset ManagementCLOSED1410-$0.0M
2024-03-31 → 2024-06-30Renaissance TechnologiesTRIMMED1,435,8561,086,256$61.2M
2024-03-31 → 2024-06-30Citadel AdvisorsTRIMMED214,387210,694-$2.1M
2024-03-31 → 2024-06-30Two Sigma InvestmentsCLOSED4,7030-$0.3M
2024-03-31 → 2024-06-30Millennium ManagementCLOSED21,2520-$1.4M
2024-03-31 → 2024-06-30Norges Bank Investment ManagementNEW0129,324$7.3M
2024-03-31 → 2024-06-30Marshall WaceADDED3,40020,200$0.9M
2024-03-31 → 2024-06-30Neuberger BermanTRIMMED54,09220,903-$2.4M
2024-03-31 → 2024-06-30Senator Investment GroupADDED666,768716,768-$3.1M
2024-03-31 → 2024-06-30Irenic Capital ManagementCLOSED40,5100-$2.6M
2024-03-31 → 2024-06-30Geode Capital ManagementADDED979,5571,011,229-$6.9M
2024-03-31 → 2024-06-30Charles Schwab Investment ManagementADDED456,621476,057-$3.0M
2024-03-31 → 2024-06-30Victory Capital ManagementTRIMMED173,040148,387-$2.9M
2024-03-31 → 2024-06-30Verition Fund ManagementNEW061,407$3.5M
2024-03-31 → 2024-06-30Walleye CapitalNEW0194,619$11.0M
2024-03-31 → 2024-06-30Squarepoint OpsADDED56,43871,476$0.3M
2024-03-31 → 2024-06-30Schonfeld Strategic AdvisorsNEW03,900$0.2M
2024-03-31 → 2024-06-30Qube Research & TechnologiesADDED69,852105,163$1.4M
2024-03-31 → 2024-06-301832 Asset ManagementTRIMMED249141-$0.0M
2023-12-31 → 2024-03-31Renaissance TechnologiesTRIMMED1,611,4561,435,856-$0.0M
2023-12-31 → 2024-03-31Citadel AdvisorsTRIMMED589,694214,387-$30.8M
2023-12-31 → 2024-03-31Two Sigma InvestmentsTRIMMED12,3004,703-$0.6M
2023-12-31 → 2024-03-31Millennium ManagementADDED5,81921,252$0.9M
2023-12-31 → 2024-03-31Fisher Asset ManagementCLOSED2260-$0.0M
2023-12-31 → 2024-03-31Norges Bank Investment ManagementCLOSED663,0330-$50.4M
2023-12-31 → 2024-03-31Marshall WaceNEW03,400$0.2M
2023-12-31 → 2024-03-31Neuberger BermanADDED39,83654,092$0.5M
2023-12-31 → 2024-03-31Senator Investment GroupADDED364,403666,768$15.8M
2023-12-31 → 2024-03-31Irenic Capital ManagementADDED7,05640,510$2.1M
2023-12-31 → 2024-03-31Geode Capital ManagementADDED964,504979,557-$9.4M
2023-12-31 → 2024-03-31Capital World InvestorsADDED229,490981,623$46.7M
2023-12-31 → 2024-03-31Charles Schwab Investment ManagementADDED453,769456,621-$4.7M
2023-12-31 → 2024-03-31Victory Capital ManagementADDED156,467173,040-$0.6M
2023-12-31 → 2024-03-31Verition Fund ManagementCLOSED3,5310-$0.3M
2023-12-31 → 2024-03-31Squarepoint OpsADDED40,63656,438$0.6M
2023-12-31 → 2024-03-31Qube Research & TechnologiesADDED17,29069,852$3.2M
2023-12-31 → 2024-03-311832 Asset ManagementTRIMMED408249-$0.0M
2023-09-30 → 2023-12-31Renaissance TechnologiesTRIMMED1,760,5561,611,456$0.0M
2023-09-30 → 2023-12-31Citadel AdvisorsADDED57,911589,694$41.3M
2023-09-30 → 2023-12-31Point72 Asset ManagementCLOSED2,0470-$0.1M
2023-09-30 → 2023-12-31Millennium ManagementTRIMMED25,5375,819-$1.1M
2023-09-30 → 2023-12-31Fisher Asset ManagementTRIMMED261226$0.0M
2023-09-30 → 2023-12-31Norges Bank Investment ManagementNEW0663,033$50.4M
2023-09-30 → 2023-12-31Neuberger BermanADDED37,46439,836$0.7M
2023-09-30 → 2023-12-31Senator Investment GroupADDED350,000364,403$6.1M
2023-09-30 → 2023-12-31Irenic Capital ManagementNEW07,056$0.5M
2023-09-30 → 2023-12-31Geode Capital ManagementADDED914,966964,504$16.7M
2023-09-30 → 2023-12-31Capital World InvestorsNEW0229,490$17.5M
2023-09-30 → 2023-12-31Charles Schwab Investment ManagementADDED449,356453,769$6.7M
2023-09-30 → 2023-12-31Victory Capital ManagementTRIMMED191,846156,467$0.0M
2023-09-30 → 2023-12-31Verition Fund ManagementNEW03,531$0.3M
2023-09-30 → 2023-12-31Walleye CapitalCLOSED4,6680-$0.3M
2023-09-30 → 2023-12-31Squarepoint OpsTRIMMED115,82940,636-$4.1M
2023-09-30 → 2023-12-31Qube Research & TechnologiesTRIMMED31,38817,290-$0.6M
2023-09-30 → 2023-12-31Man GroupCLOSED31,7410-$2.0M