COGENT COMMUNICATIONS HLDGS

Ticker: CCOI CUSIP: 19239V302 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q3 2020

Shares 31,442 Value ($000) $1,888 Avg Close $53.91 Range $43.66 - $66.92

Q2 2020

Shares 344,934 Value ($000) $26,683 Avg Close $59.24 Range $53.63 - $67.78

Q1 2020

Shares 17,011 Value ($000) $1,394 Avg Close $54.80 Range $46.85 - $63.38

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	31,442	$1,888	$53.91	$43.66 - $66.92
Q2 2020	344,934	$26,683	$59.24	$53.63 - $67.78
Q1 2020	17,011	$1,394	$54.80	$46.85 - $63.38