COGENT COMMUNICATIONS HLDGS

Ticker: CCOI CUSIP: 19239V302 Class: Common Stock

Dorsey & Whitney Trust CO LLC's Holding History (CIK: 0001384042)

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

Q1 2018

Shares 5,331 Value ($000) $232 Avg Close $29.20 Range $23.71 - $30.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	5,331	$232	$29.20	$23.71 - $30.80