GALLAGHER ARTHUR J & CO

Ticker: AJG CUSIP: 363576109 Class: COM

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

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

Q4 2025

Shares 84,329 Value ($000) $21,824 Avg Close $264.22 Range $236.34 - $312.72

Q3 2025

Shares 99,597 Value ($000) $30,849 Avg Close $300.20 Range $276.20 - $321.70

Q2 2025

Shares 147,138 Value ($000) $47,102 Avg Close $327.56 Range $299.17 - $348.85

Q1 2025

Shares 244,697 Value ($000) $84,479 Avg Close $313.31 Range $273.17 - $344.60

Q4 2024

Shares 305,920 Value ($000) $86,835 Avg Close $288.06 Range $274.49 - $313.35

Q3 2024

Shares 15,822 Value ($000) $4,452 Avg Close $278.61 Range $254.32 - $297.84

Q2 2024

Shares 39,350 Value ($000) $10,204 Avg Close $244.50 Range $226.63 - $263.02

Q1 2024

Shares 45,779 Value ($000) $11,447 Avg Close $236.41 Range $219.54 - $252.26

Q4 2023

Shares 7,444 Value ($000) $1,674 Avg Close $232.39 Range $214.82 - $249.02

Q2 2023

Shares 50,417 Value ($000) $11,070 Avg Close $203.16 Range $185.32 - $215.79

Q1 2023

Shares 1,715 Value ($000) $328 Avg Close $184.71 Range $170.15 - $196.81

Q2 2022

Shares 29,300 Value ($000) $4,777 Avg Close $160.18 Range $143.39 - $180.33

Q4 2021

Shares 101,673 Value ($000) $17,251 Avg Close $156.75 Range $142.44 - $164.55

Q2 2021

Shares 105,330 Value ($000) $14,755 Avg Close $134.67 Range $118.24 - $146.63

Q3 2020

Shares 5,100 Value ($000) $538 Avg Close $97.68 Range $90.30 - $102.85

Q1 2020

Shares 16,994 Value ($000) $1,385 Avg Close $89.38 Range $60.94 - $102.05

Q4 2019

Shares 2,367 Value ($000) $225 Avg Close $85.11 Range $79.19 - $89.69

Q2 2018

Shares 5,141 Value ($000) $336 Avg Close $60.98 Range $58.35 - $63.75

Q1 2018

Shares 232,100 Value ($000) $15,952 Avg Close $60.39 Range $55.42 - $65.39

Q4 2016

Shares 47,092 Value ($000) $2,447 Avg Close $43.55 Range $40.73 - $45.38

Q3 2014

Shares 19,594 Value ($000) $888 Avg Close $37.00 Range $35.50 - $38.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	84,329	$21,824	$264.22	$236.34 - $312.72
Q3 2025	99,597	$30,849	$300.20	$276.20 - $321.70
Q2 2025	147,138	$47,102	$327.56	$299.17 - $348.85
Q1 2025	244,697	$84,479	$313.31	$273.17 - $344.60
Q4 2024	305,920	$86,835	$288.06	$274.49 - $313.35
Q3 2024	15,822	$4,452	$278.61	$254.32 - $297.84
Q2 2024	39,350	$10,204	$244.50	$226.63 - $263.02
Q1 2024	45,779	$11,447	$236.41	$219.54 - $252.26
Q4 2023	7,444	$1,674	$232.39	$214.82 - $249.02
Q2 2023	50,417	$11,070	$203.16	$185.32 - $215.79
Q1 2023	1,715	$328	$184.71	$170.15 - $196.81
Q2 2022	29,300	$4,777	$160.18	$143.39 - $180.33
Q4 2021	101,673	$17,251	$156.75	$142.44 - $164.55
Q2 2021	105,330	$14,755	$134.67	$118.24 - $146.63
Q3 2020	5,100	$538	$97.68	$90.30 - $102.85
Q1 2020	16,994	$1,385	$89.38	$60.94 - $102.05
Q4 2019	2,367	$225	$85.11	$79.19 - $89.69
Q2 2018	5,141	$336	$60.98	$58.35 - $63.75
Q1 2018	232,100	$15,952	$60.39	$55.42 - $65.39
Q4 2016	47,092	$2,447	$43.55	$40.73 - $45.38
Q3 2014	19,594	$888	$37.00	$35.50 - $38.49