Mariner
CCOI icon

Mariner’s Cogent Communications CCOI Stock Holding History

Mariner’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
2025
Q2 		– Sell
-6,015
Closed -$369K – 3510
2025
Q1 		$369K Buy
6,015
+73
+1% +$5.38K ﹤0.01% 2452
2024
Q4 		$458K Sell
5,942
-212
-3% -$16.9K ﹤0.01% 2267
2024
Q3 		$468K Sell
6,154
-218
-3% -$15K ﹤0.01% 2183
2024
Q2 		$360K Sell
6,372
-266
-4% -$15.9K ﹤0.01% 2313
2024
Q1 		$434K Sell
6,638
-208
-3% -$15.2K ﹤0.01% 2136
2023
Q4 		$521K Buy
6,846
+432
+7% +$28.9K ﹤0.01% 1911
2023
Q3 		$397K Buy
6,414
+695
+12% +$45.5K ﹤0.01% 1928
2023
Q2 		$385K Buy
5,719
+1,619
+39% +$106K ﹤0.01% 1928
2023
Q1 		$260K Sell
4,100
-687
-14% -$44.2K ﹤0.01% 2179
2022
Q4 		$273K Sell
4,787
-513
-10% -$28.1K ﹤0.01% 2097
2022
Q3 		$276K Buy
+5,300
New +$306K ﹤0.01% 1832

Other funds holding CCOI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
TCAM
Turtle Creek Asset Management Toronto, Ontario, Canada $2.67B AUM 0.64% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
MG
Magnolia Group Omaha, Nebraska $538M AUM 5.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
MC
MIG Capital Newport Beach, California $589M AUM 25.96% 1-Year Est. Return

Mariner's CCOI Position: Q2 2025 in Review

Mariner sold out of Cogent Communications (CCOI) in Q2 2025, closing a stake of 6,015 shares — an estimated $369K sold.

Mariner first reported a position in CCOI in Q3 2022 and held it in 11 quarters. The position peaked at $521K in Q4 2023. 294 funds tracked by Wall St. Rank hold CCOI as of Q2 2025.

  • Mariner reported no remaining Cogent Communications position as of Q2 2025 after selling out during the quarter.
  • Mariner sold 6,015 Cogent Communications shares in Q2 2025, an estimated $369K.
  • Mariner first reported a position in Cogent Communications in Q3 2022 and held it in 11 quarters.
  • Mariner's Cogent Communications position peaked at $521K in Q4 2023.
  • 294 funds tracked by Wall St. Rank held Cogent Communications as of Q2 2025.

Based on Mariner's 13F filing for Q2 2025, filed 14 Aug 2025.