GARTNER INC

Ticker: IT CUSIP: 366651107 Class: COM

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q1 2021

Shares 6,402 Value ($000) $1,169 Avg Close $173.86 Range $149.74 - $191.66

Q4 2020

Shares 6,453 Value ($000) $1,034 Avg Close $144.06 Range $115.86 - $162.94

Q3 2020

Shares 6,450 Value ($000) $806 Avg Close $127.15 Range $116.51 - $136.09

Q2 2020

Shares 6,437 Value ($000) $781 Avg Close $115.55 Range $88.81 - $138.72

Q2 2018

Shares 71,577 Value ($000) $9,513 Avg Close $128.01 Range $114.40 - $138.88

Q1 2018

Shares 43,755 Value ($000) $5,146 Avg Close $124.90 Range $111.57 - $142.16

Q4 2017

Shares 31,161 Value ($000) $3,837 Avg Close $121.44 Range $115.01 - $126.22

Q3 2017

Shares 42,782 Value ($000) $5,323 Avg Close $123.59 Range $115.86 - $130.02

Q2 2017

Shares 14,769 Value ($000) $1,824 Avg Close $116.06 Range $107.70 - $124.92

Q1 2017

Shares 25,514 Value ($000) $2,755 Avg Close $103.07 Range $90.37 - $112.42

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	6,402	$1,169	$173.86	$149.74 - $191.66
Q4 2020	6,453	$1,034	$144.06	$115.86 - $162.94
Q3 2020	6,450	$806	$127.15	$116.51 - $136.09
Q2 2020	6,437	$781	$115.55	$88.81 - $138.72
Q2 2018	71,577	$9,513	$128.01	$114.40 - $138.88
Q1 2018	43,755	$5,146	$124.90	$111.57 - $142.16
Q4 2017	31,161	$3,837	$121.44	$115.01 - $126.22
Q3 2017	42,782	$5,323	$123.59	$115.86 - $130.02
Q2 2017	14,769	$1,824	$116.06	$107.70 - $124.92
Q1 2017	25,514	$2,755	$103.07	$90.37 - $112.42