KLA CORP

Ticker: KLAC CUSIP: 482480100 Class: COM NEW

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

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

Q4 2025

Shares 839 Value ($000) $1,019 Avg Close $1171.91 Range $979.33 - $1286.81

Q2 2025

Shares 115,000 Value ($000) $103,010 Avg Close $748.55 Range $547.89 - $911.31

Q3 2024

Shares 27,028 Value ($000) $20,931 Avg Close $775.08 Range $639.56 - $884.65

Q1 2024

Shares 780 Value ($000) $545 Avg Close $631.89 Range $533.07 - $718.19

Q4 2023

Shares 35,000 Value ($000) $20,346 Avg Close $510.90 Range $439.38 - $587.15

Q2 2023

Shares 10,456 Value ($000) $5,071 Avg Close $407.84 Range $346.68 - $477.23

Q1 2023

Shares 3,927 Value ($000) $1,568 Avg Close $383.34 Range $350.54 - $417.01

Q4 2022

Shares 10,791 Value ($000) $4,069 Avg Close $337.92 Range $242.12 - $407.40

Q3 2022

Shares 41,100 Value ($000) $12,438 Avg Close $334.63 Range $272.74 - $384.72

Q2 2022

Shares 11,187 Value ($000) $3,569 Avg Close $323.74 Range $294.07 - $359.05

Q1 2022

Shares 115,136 Value ($000) $42,147 Avg Close $358.99 Range $298.47 - $438.16

Q4 2021

Shares 184,660 Value ($000) $79,422 Avg Close $369.50 Range $304.02 - $424.08

Q3 2021

Shares 13,013 Value ($000) $4,353 Avg Close $318.72 Range $273.94 - $358.15

Q2 2021

Shares 5,140 Value ($000) $1,667 Avg Close $304.93 Range $271.63 - $341.75

Q4 2019

Shares 20,646 Value ($000) $3,678 Avg Close $155.73 Range $142.30 - $167.48

Q2 2019

Shares 41,722 Value ($000) $4,932 Avg Close $106.14 Range $93.34 - $118.03

Q1 2019

Shares 81,389 Value ($000) $9,718 Avg Close $98.08 Range $77.84 - $114.05

Q4 2018

Shares 184,439 Value ($000) $16,506 Avg Close $84.23 Range $73.26 - $92.78

Q3 2018

Shares 35,376 Value ($000) $3,598 Avg Close $98.18 Range $89.72 - $109.57

Q2 2018

Shares 60,004 Value ($000) $6,152 Avg Close $97.03 Range $87.08 - $106.13

Q4 2016

Shares 980,347 Value ($000) $77,134 Avg Close $65.71 Range $59.77 - $71.83

Q3 2016

Shares 1,033,776 Value ($000) $72,064 Avg Close $61.47 Range $57.31 - $66.21

Q2 2016

Shares 198,075 Value ($000) $14,509 Avg Close $60.76 Range $57.25 - $63.93

Q1 2016

Shares 76,905 Value ($000) $5,600 Avg Close $56.58 Range $52.61 - $61.78

Q3 2015

Shares 29,346 Value ($000) $1,467 Avg Close $42.50 Range $37.34 - $47.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	839	$1,019	$1171.91	$979.33 - $1286.81
Q2 2025	115,000	$103,010	$748.55	$547.89 - $911.31
Q3 2024	27,028	$20,931	$775.08	$639.56 - $884.65
Q1 2024	780	$545	$631.89	$533.07 - $718.19
Q4 2023	35,000	$20,346	$510.90	$439.38 - $587.15
Q2 2023	10,456	$5,071	$407.84	$346.68 - $477.23
Q1 2023	3,927	$1,568	$383.34	$350.54 - $417.01
Q4 2022	10,791	$4,069	$337.92	$242.12 - $407.40
Q3 2022	41,100	$12,438	$334.63	$272.74 - $384.72
Q2 2022	11,187	$3,569	$323.74	$294.07 - $359.05
Q1 2022	115,136	$42,147	$358.99	$298.47 - $438.16
Q4 2021	184,660	$79,422	$369.50	$304.02 - $424.08
Q3 2021	13,013	$4,353	$318.72	$273.94 - $358.15
Q2 2021	5,140	$1,667	$304.93	$271.63 - $341.75
Q4 2019	20,646	$3,678	$155.73	$142.30 - $167.48
Q2 2019	41,722	$4,932	$106.14	$93.34 - $118.03
Q1 2019	81,389	$9,718	$98.08	$77.84 - $114.05
Q4 2018	184,439	$16,506	$84.23	$73.26 - $92.78
Q3 2018	35,376	$3,598	$98.18	$89.72 - $109.57
Q2 2018	60,004	$6,152	$97.03	$87.08 - $106.13
Q4 2016	980,347	$77,134	$65.71	$59.77 - $71.83
Q3 2016	1,033,776	$72,064	$61.47	$57.31 - $66.21
Q2 2016	198,075	$14,509	$60.76	$57.25 - $63.93
Q1 2016	76,905	$5,600	$56.58	$52.61 - $61.78
Q3 2015	29,346	$1,467	$42.50	$37.34 - $47.18