COGENT COMMUNICATIONS HLDGS

Ticker: CCOI CUSIP: 19239V302 Class: Common Stock

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q4 2021

Shares 4,048 Value ($000) $296 Avg Close $58.80 Range $54.37 - $63.01

Q2 2020

Shares 6,000 Value ($000) $464 Avg Close $59.24 Range $53.63 - $67.78

Q2 2014

Shares 12,373 Value ($000) $427 Avg Close $20.24 Range $18.87 - $21.66

Q3 2013

Shares 33,355 Value ($000) $1,076 Avg Close $17.12 Range $15.63 - $18.44

Q2 2013

Shares 28,148 Value ($000) $792 Avg Close $15.51 Range $14.03 - $16.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	4,048	$296	$58.80	$54.37 - $63.01
Q2 2020	6,000	$464	$59.24	$53.63 - $67.78
Q2 2014	12,373	$427	$20.24	$18.87 - $21.66
Q3 2013	33,355	$1,076	$17.12	$15.63 - $18.44
Q2 2013	28,148	$792	$15.51	$14.03 - $16.52