Mariner Investment Group’s Cogent Communications CCOI Stock Holding History

Mariner Investment Group’s Portfolio CCOI Stock Details CCOI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-105,000	Closed	-$394K	–	129
2026 Q1	$394K	Hold	105,000	–	–	0.11%	55
2025 Q4	$478K	Hold	105,000	–	–	0.03%	59
2025 Q3	$362K	Buy	+105,000	New	+$4.38M	0.11%	45

Other funds holding CCOI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Turtle Creek Asset Management Toronto, Ontario, Canada $2.56B AUM 1.05% 1-Year Est. Return

Park West Asset Management San Francisco, California $1.47B AUM 86.42% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

Vanguard Capital Management

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Citadel Advisors

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return