COGENT COMMUNICATIONS HLDGS

Ticker: CCOI CUSIP: 19239V302 Class: Common Stock

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q3 2023

Shares 20,069 Value ($000) $1,242 Avg Close $56.65 Range $49.37 - $62.58

Q2 2023

Shares 32,672 Value ($000) $2,199 Avg Close $55.79 Range $51.89 - $63.61

Q1 2023

Shares 32,672 Value ($000) $2,082 Avg Close $53.95 Range $47.34 - $59.59

Q4 2022

Shares 32,672 Value ($000) $1,865 Avg Close $45.47 Range $38.44 - $49.77

Q3 2022

Shares 31,869 Value ($000) $1,663 Avg Close $47.03 Range $40.31 - $52.62

Q2 2022

Shares 30,368 Value ($000) $1,846 Avg Close $49.50 Range $44.69 - $57.61

Q1 2022

Shares 29,168 Value ($000) $1,936 Avg Close $50.68 Range $45.04 - $58.30

Q4 2021

Shares 28,067 Value ($000) $2,055 Avg Close $58.80 Range $54.37 - $63.01

Q3 2021

Shares 28,766 Value ($000) $2,039 Avg Close $57.54 Range $54.65 - $60.62

Q2 2021

Shares 11,916 Value ($000) $918 Avg Close $56.91 Range $51.11 - $61.32

Q1 2021

Shares 12,216 Value ($000) $841 Avg Close $46.19 Range $42.45 - $53.35

Q4 2020

Shares 12,016 Value ($000) $720 Avg Close $44.21 Range $39.55 - $48.39

Q3 2020

Shares 51,515 Value ($000) $3,095 Avg Close $53.91 Range $43.66 - $66.92

Q2 2020

Shares 108,509 Value ($000) $8,395 Avg Close $59.24 Range $53.63 - $67.78

Q1 2020

Shares 110,909 Value ($000) $9,092 Avg Close $54.80 Range $46.85 - $63.38

Q4 2019

Shares 138,110 Value ($000) $9,090 Avg Close $43.44 Range $38.28 - $48.23

Q3 2019

Shares 136,909 Value ($000) $7,545 Avg Close $42.42 Range $38.13 - $45.53

Q2 2019

Shares 136,909 Value ($000) $8,128 Avg Close $40.47 Range $37.32 - $43.54

Q1 2019

Shares 114,906 Value ($000) $6,235 Avg Close $34.25 Range $30.46 - $38.29

Q4 2018

Shares 66,301 Value ($000) $2,998 Avg Close $34.08 Range $29.38 - $39.03

Q1 2014

Shares 27,911 Value ($000) $992 Avg Close $22.15 Range $17.84 - $24.59

Q4 2013

Shares 28,912 Value ($000) $1,169 Avg Close $20.46 Range $17.72 - $23.32

Q3 2013

Shares 26,713 Value ($000) $862 Avg Close $17.12 Range $15.63 - $18.44

Q2 2013

Shares 26,713 Value ($000) $752 Avg Close $15.51 Range $14.03 - $16.52

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	20,069	$1,242	$56.65	$49.37 - $62.58
Q2 2023	32,672	$2,199	$55.79	$51.89 - $63.61
Q1 2023	32,672	$2,082	$53.95	$47.34 - $59.59
Q4 2022	32,672	$1,865	$45.47	$38.44 - $49.77
Q3 2022	31,869	$1,663	$47.03	$40.31 - $52.62
Q2 2022	30,368	$1,846	$49.50	$44.69 - $57.61
Q1 2022	29,168	$1,936	$50.68	$45.04 - $58.30
Q4 2021	28,067	$2,055	$58.80	$54.37 - $63.01
Q3 2021	28,766	$2,039	$57.54	$54.65 - $60.62
Q2 2021	11,916	$918	$56.91	$51.11 - $61.32
Q1 2021	12,216	$841	$46.19	$42.45 - $53.35
Q4 2020	12,016	$720	$44.21	$39.55 - $48.39
Q3 2020	51,515	$3,095	$53.91	$43.66 - $66.92
Q2 2020	108,509	$8,395	$59.24	$53.63 - $67.78
Q1 2020	110,909	$9,092	$54.80	$46.85 - $63.38
Q4 2019	138,110	$9,090	$43.44	$38.28 - $48.23
Q3 2019	136,909	$7,545	$42.42	$38.13 - $45.53
Q2 2019	136,909	$8,128	$40.47	$37.32 - $43.54
Q1 2019	114,906	$6,235	$34.25	$30.46 - $38.29
Q4 2018	66,301	$2,998	$34.08	$29.38 - $39.03
Q1 2014	27,911	$992	$22.15	$17.84 - $24.59
Q4 2013	28,912	$1,169	$20.46	$17.72 - $23.32
Q3 2013	26,713	$862	$17.12	$15.63 - $18.44
Q2 2013	26,713	$752	$15.51	$14.03 - $16.52