Brown Brothers Harriman & Co’s Cogent Communications CCOI Stock Holding History

Brown Brothers Harriman & Co’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 Q1	–	Sell	-34	Closed	-$733	–	1815
2025 Q4	$733	Hold	34	–	–	﹤0.01%	1789
2025 Q3	$1.3K	Hold	34	–	–	﹤0.01%	1614
2025 Q2	$1.64K	Buy	+34	New	+$1.73K	﹤0.01%	1452
2022 Q4	–	Sell	-368	Closed	-$19K	–	1284
2022 Q3	$19K	Buy	+368	New	+$21.2K	﹤0.01%	980
2020 Q2	–	Sell	-33,536	Closed	-$2.75M	–	1009
2020 Q1	$2.75M	Hold	33,536	–	–	0.02%	123
2019 Q4	$2.21M	Hold	33,536	–	–	0.01%	169
2019 Q3	$1.85M	Hold	33,536	–	–	0.01%	172
2019 Q2	$1.99M	Hold	33,536	–	–	0.01%	160
2019 Q1	$1.82M	Hold	33,536	–	–	0.01%	162
2018 Q4	$1.52M	Hold	33,536	–	–	0.01%	162
2018 Q3	$1.87M	Hold	33,536	–	–	0.01%	151
2018 Q2	$1.79M	Hold	33,536	–	–	0.01%	142
2018 Q1	$1.46M	Hold	33,536	–	–	0.01%	154
2017 Q4	$1.52M	Hold	33,536	–	–	0.01%	158
2017 Q3	$1.64M	Hold	33,536	–	–	0.01%	146
2017 Q2	$1.34M	Hold	33,536	–	–	0.01%	150
2017 Q1	$1.44M	Hold	33,536	–	–	0.01%	146
2016 Q4	$1.39M	Sell	33,536 -9,000	-21%	-$343K	0.01%	150
2016 Q3	$1.57M	Hold	42,536	–	–	0.01%	147
2016 Q2	$1.7M	Hold	42,536	–	–	0.01%	148
2016 Q1	$1.66M	Hold	42,536	–	–	0.01%	150
2015 Q4	$1.48M	Hold	42,536	–	–	0.01%	165
2015 Q3	$1.16M	Hold	42,536	–	–	0.01%	179
2015 Q2	$1.44M	Hold	42,536	–	–	0.01%	165
2015 Q1	$1.5M	Hold	42,536	–	–	0.01%	170
2014 Q4	$1.5M	Hold	42,536	–	–	0.01%	171
2014 Q3	$1.43M	Hold	42,536	–	–	0.01%	176
2014 Q2	$1.47M	Buy	+42,536	New	+$1.5M	0.01%	180

Other funds holding CCOI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

TCAM

Turtle Creek Asset Management Toronto, Ontario, Canada $2.67B AUM 0.64% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

PWAM

Park West Asset Management San Francisco, California $1.18B AUM 47.25% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Newtyn Management New York $936M AUM 27.23% 1-Year Est. Return

Magnolia Group Omaha, Nebraska $538M AUM 5.13% 1-Year Est. Return

Brown Brothers Harriman & Co's CCOI Position: Q1 2026 in Review

Brown Brothers Harriman & Co sold out of Cogent Communications (CCOI) in Q1 2026, closing a stake of 34 shares — an estimated $733 sold.

Brown Brothers Harriman & Co first reported a position in CCOI in Q2 2014 and held it in 28 quarters. The position peaked at $2.75M in Q1 2020. 233 funds tracked by Wall St. Rank hold CCOI as of Q1 2026.

Brown Brothers Harriman & Co reported no remaining Cogent Communications position as of Q1 2026 after selling out during the quarter.
Brown Brothers Harriman & Co sold 34 Cogent Communications shares in Q1 2026, an estimated $733.
Brown Brothers Harriman & Co first reported a position in Cogent Communications in Q2 2014 and held it in 28 quarters.
Brown Brothers Harriman & Co's Cogent Communications position peaked at $2.75M in Q1 2020.
233 funds tracked by Wall St. Rank held Cogent Communications as of Q1 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q1 2026, filed 14 May 2026.