COGENT COMMUNICATIONS HLDGS

Ticker: CCOI CUSIP: 19239V302 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

Note: Option positions (PUT/CALL) are excluded.

Q1 2020

Shares 17,667 Value ($000) $1,448 Avg Close $54.80 Range $46.85 - $63.38

Q3 2019

Shares 20,836 Value ($000) $1,148 Avg Close $42.42 Range $38.13 - $45.53

Q4 2016

Shares 9,053 Value ($000) $374 Avg Close $24.11 Range $21.53 - $26.92

Q3 2016

Shares 42,185 Value ($000) $1,553 Avg Close $24.16 Range $22.06 - $27.15

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	17,667	$1,448	$54.80	$46.85 - $63.38
Q3 2019	20,836	$1,148	$42.42	$38.13 - $45.53
Q4 2016	9,053	$374	$24.11	$21.53 - $26.92
Q3 2016	42,185	$1,553	$24.16	$22.06 - $27.15