GARTNER INC

Ticker: IT CUSIP: 366651107 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 141,719 Value ($000) $35,753 Avg Close $240.69 Range $222.54 - $264.90

Q2 2025

Shares 6,669 Value ($000) $2,696 Avg Close $418.44 Range $366.05 - $451.73

Q1 2025

Shares 7,993 Value ($000) $3,355 Avg Close $492.81 Range $409.50 - $584.01

Q4 2024

Shares 7,574 Value ($000) $3,669 Avg Close $515.55 Range $474.87 - $559.00

Q3 2024

Shares 945 Value ($000) $479 Avg Close $480.74 Range $438.52 - $521.64

Q3 2023

Shares 31,031 Value ($000) $10,663 Avg Close $348.82 Range $324.30 - $377.88

Q2 2023

Shares 11,087 Value ($000) $3,884 Avg Close $325.62 Range $292.60 - $363.12

Q1 2023

Shares 18,503 Value ($000) $6,028 Avg Close $330.57 Range $299.07 - $356.67

Q4 2022

Shares 75,146 Value ($000) $25,260 Avg Close $322.72 Range $277.08 - $358.25

Q3 2022

Shares 6,340 Value ($000) $1,754 Avg Close $280.37 Range $231.05 - $317.63

Q2 2021

Shares 19,622 Value ($000) $4,752 Avg Close $218.76 Range $183.48 - $243.94

Q1 2021

Shares 44,548 Value ($000) $8,133 Avg Close $173.86 Range $149.74 - $191.66

Q4 2020

Shares 7,389 Value ($000) $1,184 Avg Close $144.06 Range $115.86 - $162.94

Q3 2020

Shares 1,613 Value ($000) $202 Avg Close $127.15 Range $116.51 - $136.09

Q2 2020

Shares 149,984 Value ($000) $18,198 Avg Close $115.55 Range $88.81 - $138.72

Q1 2020

Shares 137,712 Value ($000) $13,712 Avg Close $137.00 Range $76.91 - $165.27

Q3 2019

Shares 1 Value ($000) $0 Avg Close $145.37 Range $124.77 - $171.78

Q1 2019

Shares 14 Value ($000) $2 Avg Close $138.79 Range $122.50 - $151.83

Q4 2018

Shares 758 Value ($000) $97 Avg Close $144.26 Range $120.89 - $160.29

Q2 2018

Shares 15,565 Value ($000) $2,069 Avg Close $128.01 Range $114.40 - $138.88

Q2 2016

Shares 94,011 Value ($000) $9,158 Avg Close $95.03 Range $86.17 - $103.00

Q1 2016

Shares 38,751 Value ($000) $3,462 Avg Close $84.54 Range $77.80 - $89.73

Q3 2015

Shares 2,904 Value ($000) $244 Avg Close $87.10 Range $79.93 - $92.46

Q1 2015

Shares 97,524 Value ($000) $8,177 Avg Close $82.51 Range $74.39 - $86.28

Q2 2014

Shares 5,000 Value ($000) $353 Avg Close $69.70 Range $65.55 - $75.61

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	141,719	$35,753	$240.69	$222.54 - $264.90
Q2 2025	6,669	$2,696	$418.44	$366.05 - $451.73
Q1 2025	7,993	$3,355	$492.81	$409.50 - $584.01
Q4 2024	7,574	$3,669	$515.55	$474.87 - $559.00
Q3 2024	945	$479	$480.74	$438.52 - $521.64
Q3 2023	31,031	$10,663	$348.82	$324.30 - $377.88
Q2 2023	11,087	$3,884	$325.62	$292.60 - $363.12
Q1 2023	18,503	$6,028	$330.57	$299.07 - $356.67
Q4 2022	75,146	$25,260	$322.72	$277.08 - $358.25
Q3 2022	6,340	$1,754	$280.37	$231.05 - $317.63
Q2 2021	19,622	$4,752	$218.76	$183.48 - $243.94
Q1 2021	44,548	$8,133	$173.86	$149.74 - $191.66
Q4 2020	7,389	$1,184	$144.06	$115.86 - $162.94
Q3 2020	1,613	$202	$127.15	$116.51 - $136.09
Q2 2020	149,984	$18,198	$115.55	$88.81 - $138.72
Q1 2020	137,712	$13,712	$137.00	$76.91 - $165.27
Q3 2019	1	$0	$145.37	$124.77 - $171.78
Q1 2019	14	$2	$138.79	$122.50 - $151.83
Q4 2018	758	$97	$144.26	$120.89 - $160.29
Q2 2018	15,565	$2,069	$128.01	$114.40 - $138.88
Q2 2016	94,011	$9,158	$95.03	$86.17 - $103.00
Q1 2016	38,751	$3,462	$84.54	$77.80 - $89.73
Q3 2015	2,904	$244	$87.10	$79.93 - $92.46
Q1 2015	97,524	$8,177	$82.51	$74.39 - $86.28
Q2 2014	5,000	$353	$69.70	$65.55 - $75.61