Harbor Capital Advisors’s Cogent Communications CCOI Stock Holding History

Harbor Capital Advisors’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	$14K	Sell	979 -61	-6%	-$1.13K	﹤0.01%	916
2026 Q1	$20K	Buy	+1,040	New	+$22.9K	﹤0.01%	826
2025 Q3	–	Sell	-293	Closed	-$14K	–	1361
2025 Q2	$14K	Buy	293 +29	+11%	+$1.47K	﹤0.01%	866
2025 Q1	$16K	Buy	264 +4	+2%	+$295	﹤0.01%	842
2024 Q4	$20K	Sell	260 -16,859	-98%	-$1.34M	﹤0.01%	811
2024 Q3	$1.3M	Buy	17,119 +7,099	+71%	+$489K	0.06%	410
2024 Q2	$566K	Buy	10,020 +7,448	+290%	+$445K	0.04%	501
2024 Q1	$168K	Buy	+2,572	New	+$188K	0.02%	652
2023 Q3	–	Sell	-301	Closed	-$20.3K	–	474
2023 Q2	$20.3K	Buy	+301	New	+$19.7K	﹤0.01%	598

Other funds holding CCOI

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

TCAM

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

PWAM

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

EIG

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

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

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

Harbor Capital Advisors's CCOI Position: Q2 2026 in Review

Harbor Capital Advisors reduced its Cogent Communications (CCOI) stake by 5.9% in Q2 2026, selling an estimated $1.13K and leaving 979 shares worth $14K. The position accounts for ﹤0.01% of the portfolio, ranked #916.

Harbor Capital Advisors first reported a position in CCOI in Q2 2023 and has held it in 9 quarters since. The position peaked at $1.3M in Q3 2024. 224 funds tracked by Wall St. Rank hold CCOI as of Q2 2026.

Harbor Capital Advisors held 979 shares of Cogent Communications worth $14K as of Q2 2026.
Harbor Capital Advisors sold 61 Cogent Communications shares in Q2 2026, an estimated $1.13K.
Cogent Communications made up ﹤0.01% of Harbor Capital Advisors's portfolio in Q2 2026, its #916 holding.
Harbor Capital Advisors first reported a position in Cogent Communications in Q2 2023 and has held it in 9 quarters since.
Harbor Capital Advisors's Cogent Communications position peaked at $1.3M in Q3 2024.
224 funds tracked by Wall St. Rank held Cogent Communications as of Q2 2026.

Based on Harbor Capital Advisors's 13F filing for Q2 2026, filed 7 Aug 2026.