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Senator Investment Group’s Cogent Communications CCOI Stock Holding History

Senator 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
2025
Q4 		– Sell
-483,295
Closed -$18.5M – 62
2025
Q3 		$18.5M Sell
483,295
-148,397
-23% -$6.2M 0.68% 42
2025
Q2 		$30.5M Buy
631,692
+45,218
+8% +$2.3M 1.18% 37
2025
Q1 		$36M Buy
586,474
+2,834
+0.5% +$209K 1.91% 24
2024
Q4 		$45M Sell
583,640
-80,538
-12% -$6.42M 1.32% 26
2024
Q3 		$50.4M Sell
664,178
-52,590
-7% -$3.62M 2.39% 13
2024
Q2 		$40.5M Buy
716,768
+50,000
+7% +$2.98M 1.97% 22
2024
Q1 		$43.6M Buy
666,768
+302,365
+83% +$22.1M 1.98% 16
2023
Q4 		$27.7M Buy
364,403
+14,403
+4% +$962K 1.19% 30
2023
Q3 		$21.7M Buy
350,000
+200,000
+133% +$13.1M 1.22% 29
2023
Q2 		$10.1M Buy
+150,000
New +$9.8M 0.46% 47

Other funds holding CCOI

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $2.56B AUM 1.05% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
PWAM
Park West Asset Management San Francisco, California $1.47B AUM 86.42% 1-Year Est. Return
HCM
Harspring Capital Management New York $53.7M AUM 23.29% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
MG
Magnolia Group Omaha, Nebraska $476M AUM 7.25% 1-Year Est. Return

Senator Investment Group's CCOI Position: Q4 2025 in Review

Senator Investment Group sold out of Cogent Communications (CCOI) in Q4 2025, closing a stake of 483,295 shares — an estimated $18.5M sold.

Senator Investment Group first reported a position in CCOI in Q2 2023 and held it in 10 quarters. The position peaked at $50.4M in Q3 2024. 246 funds tracked by Wall St. Rank hold CCOI as of Q4 2025.

  • Senator Investment Group reported no remaining Cogent Communications position as of Q4 2025 after selling out during the quarter.
  • Senator Investment Group sold 483,295 Cogent Communications shares in Q4 2025, an estimated $18.5M.
  • Senator Investment Group first reported a position in Cogent Communications in Q2 2023 and held it in 10 quarters.
  • Senator Investment Group's Cogent Communications position peaked at $50.4M in Q3 2024.
  • 246 funds tracked by Wall St. Rank held Cogent Communications as of Q4 2025.

Based on Senator Investment Group's 13F filing for Q4 2025, filed 13 Feb 2026.