KLA CORP

Ticker: KLAC CUSIP: 482480100 Class: COM NEW

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025

Shares 1,842 Value ($000) $2,238 Avg Close $1171.91 Range $979.33 - $1286.81

Q3 2025

Shares 3,597 Value ($000) $3,880 Avg Close $930.36 Range $830.85 - $1083.78

Q2 2025

Shares 2,359 Value ($000) $2,113 Avg Close $748.55 Range $547.89 - $911.31

Q2 2022

Shares 5,401 Value ($000) $1,723 Avg Close $323.74 Range $294.07 - $359.05

Q4 2021

Shares 10,086 Value ($000) $4,338 Avg Close $369.50 Range $304.02 - $424.08

Q2 2021

Shares 2,004 Value ($000) $650 Avg Close $304.93 Range $271.63 - $341.75

Q1 2021

Shares 3,751 Value ($000) $1,239 Avg Close $285.88 Range $244.18 - $324.26

Q3 2019

Shares 2,544 Value ($000) $406 Avg Close $129.13 Range $106.76 - $150.68

Q4 2016

Shares 408 Value ($000) $32 Avg Close $65.71 Range $59.77 - $71.83

Q1 2016

Shares 270 Value ($000) $20 Avg Close $56.58 Range $52.61 - $61.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,842	$2,238	$1171.91	$979.33 - $1286.81
Q3 2025	3,597	$3,880	$930.36	$830.85 - $1083.78
Q2 2025	2,359	$2,113	$748.55	$547.89 - $911.31
Q2 2022	5,401	$1,723	$323.74	$294.07 - $359.05
Q4 2021	10,086	$4,338	$369.50	$304.02 - $424.08
Q2 2021	2,004	$650	$304.93	$271.63 - $341.75
Q1 2021	3,751	$1,239	$285.88	$244.18 - $324.26
Q3 2019	2,544	$406	$129.13	$106.76 - $150.68
Q4 2016	408	$32	$65.71	$59.77 - $71.83
Q1 2016	270	$20	$56.58	$52.61 - $61.78