GARTNER INC

Ticker: IT CUSIP: 366651107 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 16,766 Value ($000) $4,230 Avg Close $240.69 Range $222.54 - $264.90

Q3 2025

Shares 18,187 Value ($000) $4,781 Avg Close $291.66 Range $223.65 - $409.76

Q2 2025

Shares 18,877 Value ($000) $7,630 Avg Close $418.44 Range $366.05 - $451.73

Q1 2025

Shares 17,567 Value ($000) $7,374 Avg Close $492.81 Range $409.50 - $584.01

Q4 2024

Shares 16,401 Value ($000) $7,946 Avg Close $515.55 Range $474.87 - $559.00

Q3 2024

Shares 16,775 Value ($000) $8,501 Avg Close $480.74 Range $438.52 - $521.64

Q2 2024

Shares 17,052 Value ($000) $7,657 Avg Close $444.91 Range $411.15 - $478.82

Q1 2024

Shares 17,112 Value ($000) $8,157 Avg Close $460.24 Range $424.53 - $486.54

Q4 2023

Shares 17,070 Value ($000) $7,700 Avg Close $399.48 Range $323.61 - $469.58

Q3 2023

Shares 15,849 Value ($000) $5,446 Avg Close $348.82 Range $324.30 - $377.88

Q2 2023

Shares 13,785 Value ($000) $4,829 Avg Close $325.62 Range $292.60 - $363.12

Q1 2023

Shares 13,397 Value ($000) $4,364 Avg Close $330.57 Range $299.07 - $356.67

Q4 2022

Shares 13,358 Value ($000) $4 Avg Close $322.72 Range $277.08 - $358.25

Q3 2022

Shares 11,569 Value ($000) $3,201 Avg Close $280.37 Range $231.05 - $317.63

Q2 2022

Shares 11,726 Value ($000) $2,836 Avg Close $266.05 Range $221.39 - $316.11

Q1 2022

Shares 11,004 Value ($000) $3,273 Avg Close $289.54 Range $257.50 - $334.53

Q4 2021

Shares 10,322 Value ($000) $3,451 Avg Close $321.54 Range $299.88 - $369.00

Q3 2021

Shares 10,483 Value ($000) $3,186 Avg Close $289.93 Range $242.87 - $327.20

Q2 2021

Shares 10,785 Value ($000) $2,612 Avg Close $218.76 Range $183.48 - $243.94

Q1 2021

Shares 11,096 Value ($000) $2,026 Avg Close $173.86 Range $149.74 - $191.66

Q4 2020

Shares 11,157 Value ($000) $1,787 Avg Close $144.06 Range $115.86 - $162.94

Q3 2020

Shares 8,268 Value ($000) $1,033 Avg Close $127.15 Range $116.51 - $136.09

Q2 2020

Shares 5,099 Value ($000) $619 Avg Close $115.55 Range $88.81 - $138.72

Q1 2020

Shares 5,715 Value ($000) $569 Avg Close $137.00 Range $76.91 - $165.27

Q4 2019

Shares 5,760 Value ($000) $888 Avg Close $152.69 Range $136.70 - $162.73

Q3 2019

Shares 5,776 Value ($000) $826 Avg Close $145.37 Range $124.77 - $171.78

Q2 2019

Shares 5,289 Value ($000) $851 Avg Close $156.37 Range $148.17 - $162.79

Q1 2019

Shares 5,245 Value ($000) $796 Avg Close $138.79 Range $122.50 - $151.83

Q4 2018

Shares 4,959 Value ($000) $634 Avg Close $144.26 Range $120.89 - $160.29

Q3 2018

Shares 7,453 Value ($000) $1,181 Avg Close $144.99 Range $128.00 - $161.21

Q2 2018

Shares 9,551 Value ($000) $1,269 Avg Close $128.01 Range $114.40 - $138.88

Q1 2018

Shares 8,128 Value ($000) $956 Avg Close $124.90 Range $111.57 - $142.16

Q4 2017

Shares 8,109 Value ($000) $999 Avg Close $121.44 Range $115.01 - $126.22

Q3 2017

Shares 7,368 Value ($000) $917 Avg Close $123.59 Range $115.86 - $130.02

Q2 2017

Shares 6,719 Value ($000) $830 Avg Close $116.06 Range $107.70 - $124.92

Q1 2017

Shares 12,074 Value ($000) $1,304 Avg Close $103.07 Range $90.37 - $112.42

Q4 2016

Shares 12,230 Value ($000) $1,236 Avg Close $96.64 Range $84.54 - $105.45

Q3 2016

Shares 12,221 Value ($000) $1,081 Avg Close $93.80 Range $87.86 - $100.74

Q2 2016

Shares 15,879 Value ($000) $1,547 Avg Close $95.03 Range $86.17 - $103.00

Q1 2016

Shares 14,719 Value ($000) $1,315 Avg Close $84.54 Range $77.80 - $89.73

Q4 2015

Shares 24,023 Value ($000) $2,179 Avg Close $88.55 Range $81.52 - $94.82

Q3 2015

Shares 23,973 Value ($000) $2,012 Avg Close $87.10 Range $79.93 - $92.46

Q2 2015

Shares 23,988 Value ($000) $2,058 Avg Close $85.73 Range $82.35 - $89.10

Q1 2015

Shares 22,842 Value ($000) $1,915 Avg Close $82.51 Range $74.39 - $86.28

Q4 2014

Shares 18,883 Value ($000) $1,590 Avg Close $81.25 Range $71.22 - $87.58

Q3 2014

Shares 12,338 Value ($000) $906 Avg Close $72.66 Range $67.83 - $76.82

Q2 2014

Shares 12,545 Value ($000) $885 Avg Close $69.70 Range $65.55 - $75.61

Q1 2014

Shares 12,870 Value ($000) $894 Avg Close $69.18 Range $61.28 - $73.53

Q4 2013

Shares 12,936 Value ($000) $919 Avg Close $63.15 Range $57.19 - $71.49

Q3 2013

Shares 13,223 Value ($000) $793 Avg Close $58.89 Range $55.75 - $63.00

Q2 2013

Shares 13,341 Value ($000) $760 Avg Close $56.76 Range $53.01 - $59.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,766	$4,230	$240.69	$222.54 - $264.90
Q3 2025	18,187	$4,781	$291.66	$223.65 - $409.76
Q2 2025	18,877	$7,630	$418.44	$366.05 - $451.73
Q1 2025	17,567	$7,374	$492.81	$409.50 - $584.01
Q4 2024	16,401	$7,946	$515.55	$474.87 - $559.00
Q3 2024	16,775	$8,501	$480.74	$438.52 - $521.64
Q2 2024	17,052	$7,657	$444.91	$411.15 - $478.82
Q1 2024	17,112	$8,157	$460.24	$424.53 - $486.54
Q4 2023	17,070	$7,700	$399.48	$323.61 - $469.58
Q3 2023	15,849	$5,446	$348.82	$324.30 - $377.88
Q2 2023	13,785	$4,829	$325.62	$292.60 - $363.12
Q1 2023	13,397	$4,364	$330.57	$299.07 - $356.67
Q4 2022	13,358	$4	$322.72	$277.08 - $358.25
Q3 2022	11,569	$3,201	$280.37	$231.05 - $317.63
Q2 2022	11,726	$2,836	$266.05	$221.39 - $316.11
Q1 2022	11,004	$3,273	$289.54	$257.50 - $334.53
Q4 2021	10,322	$3,451	$321.54	$299.88 - $369.00
Q3 2021	10,483	$3,186	$289.93	$242.87 - $327.20
Q2 2021	10,785	$2,612	$218.76	$183.48 - $243.94
Q1 2021	11,096	$2,026	$173.86	$149.74 - $191.66
Q4 2020	11,157	$1,787	$144.06	$115.86 - $162.94
Q3 2020	8,268	$1,033	$127.15	$116.51 - $136.09
Q2 2020	5,099	$619	$115.55	$88.81 - $138.72
Q1 2020	5,715	$569	$137.00	$76.91 - $165.27
Q4 2019	5,760	$888	$152.69	$136.70 - $162.73
Q3 2019	5,776	$826	$145.37	$124.77 - $171.78
Q2 2019	5,289	$851	$156.37	$148.17 - $162.79
Q1 2019	5,245	$796	$138.79	$122.50 - $151.83
Q4 2018	4,959	$634	$144.26	$120.89 - $160.29
Q3 2018	7,453	$1,181	$144.99	$128.00 - $161.21
Q2 2018	9,551	$1,269	$128.01	$114.40 - $138.88
Q1 2018	8,128	$956	$124.90	$111.57 - $142.16
Q4 2017	8,109	$999	$121.44	$115.01 - $126.22
Q3 2017	7,368	$917	$123.59	$115.86 - $130.02
Q2 2017	6,719	$830	$116.06	$107.70 - $124.92
Q1 2017	12,074	$1,304	$103.07	$90.37 - $112.42
Q4 2016	12,230	$1,236	$96.64	$84.54 - $105.45
Q3 2016	12,221	$1,081	$93.80	$87.86 - $100.74
Q2 2016	15,879	$1,547	$95.03	$86.17 - $103.00
Q1 2016	14,719	$1,315	$84.54	$77.80 - $89.73
Q4 2015	24,023	$2,179	$88.55	$81.52 - $94.82
Q3 2015	23,973	$2,012	$87.10	$79.93 - $92.46
Q2 2015	23,988	$2,058	$85.73	$82.35 - $89.10
Q1 2015	22,842	$1,915	$82.51	$74.39 - $86.28
Q4 2014	18,883	$1,590	$81.25	$71.22 - $87.58
Q3 2014	12,338	$906	$72.66	$67.83 - $76.82
Q2 2014	12,545	$885	$69.70	$65.55 - $75.61
Q1 2014	12,870	$894	$69.18	$61.28 - $73.53
Q4 2013	12,936	$919	$63.15	$57.19 - $71.49
Q3 2013	13,223	$793	$58.89	$55.75 - $63.00
Q2 2013	13,341	$760	$56.76	$53.01 - $59.09