KLA CORP

Ticker: KLAC CUSIP: 482480100 Class: COM NEW

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

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

Q4 2025

Shares 30,563 Value ($000) $37,136 Avg Close $1171.91 Range $979.33 - $1286.81

Q3 2025

Shares 31,689 Value ($000) $34,180 Avg Close $930.36 Range $830.85 - $1083.78

Q2 2025

Shares 32,433 Value ($000) $29,052 Avg Close $748.55 Range $547.89 - $911.31

Q1 2025

Shares 30,390 Value ($000) $20,659 Avg Close $714.90 Range $626.53 - $787.27

Q4 2024

Shares 28,441 Value ($000) $17,921 Avg Close $669.07 Range $604.24 - $823.66

Q3 2024

Shares 29,263 Value ($000) $22,662 Avg Close $775.08 Range $639.56 - $884.65

Q2 2024

Shares 29,574 Value ($000) $24,384 Avg Close $728.44 Range $613.80 - $865.13

Q1 2024

Shares 29,688 Value ($000) $20,739 Avg Close $631.89 Range $533.07 - $718.19

Q4 2023

Shares 29,767 Value ($000) $17,304 Avg Close $510.90 Range $439.38 - $587.15

Q3 2023

Shares 27,490 Value ($000) $12,609 Avg Close $469.45 Range $431.39 - $509.83

Q2 2023

Shares 23,928 Value ($000) $11,606 Avg Close $407.84 Range $346.68 - $477.23

Q1 2023

Shares 23,476 Value ($000) $9,371 Avg Close $383.34 Range $350.54 - $417.01

Q4 2022

Shares 23,955 Value ($000) $9 Avg Close $337.92 Range $242.12 - $407.40

Q3 2022

Shares 20,742 Value ($000) $6,277 Avg Close $334.63 Range $272.74 - $384.72

Q2 2022

Shares 21,729 Value ($000) $6,933 Avg Close $323.74 Range $294.07 - $359.05

Q1 2022

Shares 20,166 Value ($000) $7,382 Avg Close $358.99 Range $298.47 - $438.16

Q4 2021

Shares 19,031 Value ($000) $8,185 Avg Close $369.50 Range $304.02 - $424.08

Q3 2021

Shares 19,141 Value ($000) $6,403 Avg Close $318.72 Range $273.94 - $358.15

Q2 2021

Shares 19,205 Value ($000) $6,226 Avg Close $304.93 Range $271.63 - $341.75

Q1 2021

Shares 19,270 Value ($000) $6,367 Avg Close $285.88 Range $244.18 - $324.26

Q4 2020

Shares 19,300 Value ($000) $4,997 Avg Close $220.47 Range $179.54 - $254.78

Q3 2020

Shares 14,404 Value ($000) $2,791 Avg Close $186.13 Range $161.70 - $206.30

Q2 2020

Shares 8,866 Value ($000) $1,724 Avg Close $160.31 Range $117.44 - $185.62

Q1 2020

Shares 10,081 Value ($000) $1,449 Avg Close $150.21 Range $103.06 - $171.72

Q4 2019

Shares 10,161 Value ($000) $1,810 Avg Close $155.73 Range $142.30 - $167.48

Q3 2019

Shares 10,205 Value ($000) $1,627 Avg Close $129.13 Range $106.76 - $150.68

Q2 2019

Shares 9,488 Value ($000) $1,121 Avg Close $106.14 Range $93.34 - $118.03

Q1 2019

Shares 9,658 Value ($000) $1,153 Avg Close $98.08 Range $77.84 - $114.05

Q4 2018

Shares 8,351 Value ($000) $747 Avg Close $84.23 Range $73.26 - $92.78

Q2 2018

Shares 2,860 Value ($000) $293 Avg Close $97.03 Range $87.08 - $106.13

Q1 2018

Shares 14,015 Value ($000) $1,528 Avg Close $98.66 Range $84.98 - $110.22

Q4 2017

Shares 14,017 Value ($000) $1,473 Avg Close $92.93 Range $87.45 - $101.17

Q3 2017

Shares 12,755 Value ($000) $1,352 Avg Close $83.67 Range $76.77 - $93.25

Q2 2017

Shares 11,646 Value ($000) $1,066 Avg Close $86.97 Range $79.53 - $95.69

Q1 2017

Shares 11,626 Value ($000) $1,105 Avg Close $76.28 Range $67.20 - $84.16

Q4 2016

Shares 8,961 Value ($000) $705 Avg Close $65.71 Range $59.77 - $71.83

Q3 2016

Shares 26,509 Value ($000) $1,848 Avg Close $61.47 Range $57.31 - $66.21

Q2 2016

Shares 29,319 Value ($000) $2,148 Avg Close $60.76 Range $57.25 - $63.93

Q1 2016

Shares 28,404 Value ($000) $2,068 Avg Close $56.58 Range $52.61 - $61.78

Q4 2015

Shares 27,041 Value ($000) $1,875 Avg Close $53.38 Range $40.48 - $58.84

Q3 2015

Shares 10,121 Value ($000) $506 Avg Close $42.50 Range $37.34 - $47.18

Q2 2015

Shares 17,958 Value ($000) $1,009 Avg Close $47.89 Range $45.44 - $49.96

Q1 2015

Shares 18,661 Value ($000) $1,088 Avg Close $52.00 Range $46.89 - $57.67

Q4 2014

Shares 30,011 Value ($000) $2,110 Avg Close $52.04 Range $42.19 - $59.17

Q3 2014

Shares 30,328 Value ($000) $2,389 Avg Close $48.63 Range $45.01 - $52.55

Q2 2014

Shares 30,372 Value ($000) $2,206 Avg Close $42.48 Range $39.45 - $46.73

Q1 2014

Shares 31,915 Value ($000) $2,207 Avg Close $41.11 Range $37.63 - $45.13

Q4 2013

Shares 31,808 Value ($000) $2,050 Avg Close $39.78 Range $36.98 - $42.15

Q3 2013

Shares 33,847 Value ($000) $2,060 Avg Close $36.71 Range $33.87 - $39.26

Q2 2013

Shares 33,778 Value ($000) $1,882 Avg Close $33.95 Range $31.11 - $35.91

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,563	$37,136	$1171.91	$979.33 - $1286.81
Q3 2025	31,689	$34,180	$930.36	$830.85 - $1083.78
Q2 2025	32,433	$29,052	$748.55	$547.89 - $911.31
Q1 2025	30,390	$20,659	$714.90	$626.53 - $787.27
Q4 2024	28,441	$17,921	$669.07	$604.24 - $823.66
Q3 2024	29,263	$22,662	$775.08	$639.56 - $884.65
Q2 2024	29,574	$24,384	$728.44	$613.80 - $865.13
Q1 2024	29,688	$20,739	$631.89	$533.07 - $718.19
Q4 2023	29,767	$17,304	$510.90	$439.38 - $587.15
Q3 2023	27,490	$12,609	$469.45	$431.39 - $509.83
Q2 2023	23,928	$11,606	$407.84	$346.68 - $477.23
Q1 2023	23,476	$9,371	$383.34	$350.54 - $417.01
Q4 2022	23,955	$9	$337.92	$242.12 - $407.40
Q3 2022	20,742	$6,277	$334.63	$272.74 - $384.72
Q2 2022	21,729	$6,933	$323.74	$294.07 - $359.05
Q1 2022	20,166	$7,382	$358.99	$298.47 - $438.16
Q4 2021	19,031	$8,185	$369.50	$304.02 - $424.08
Q3 2021	19,141	$6,403	$318.72	$273.94 - $358.15
Q2 2021	19,205	$6,226	$304.93	$271.63 - $341.75
Q1 2021	19,270	$6,367	$285.88	$244.18 - $324.26
Q4 2020	19,300	$4,997	$220.47	$179.54 - $254.78
Q3 2020	14,404	$2,791	$186.13	$161.70 - $206.30
Q2 2020	8,866	$1,724	$160.31	$117.44 - $185.62
Q1 2020	10,081	$1,449	$150.21	$103.06 - $171.72
Q4 2019	10,161	$1,810	$155.73	$142.30 - $167.48
Q3 2019	10,205	$1,627	$129.13	$106.76 - $150.68
Q2 2019	9,488	$1,121	$106.14	$93.34 - $118.03
Q1 2019	9,658	$1,153	$98.08	$77.84 - $114.05
Q4 2018	8,351	$747	$84.23	$73.26 - $92.78
Q2 2018	2,860	$293	$97.03	$87.08 - $106.13
Q1 2018	14,015	$1,528	$98.66	$84.98 - $110.22
Q4 2017	14,017	$1,473	$92.93	$87.45 - $101.17
Q3 2017	12,755	$1,352	$83.67	$76.77 - $93.25
Q2 2017	11,646	$1,066	$86.97	$79.53 - $95.69
Q1 2017	11,626	$1,105	$76.28	$67.20 - $84.16
Q4 2016	8,961	$705	$65.71	$59.77 - $71.83
Q3 2016	26,509	$1,848	$61.47	$57.31 - $66.21
Q2 2016	29,319	$2,148	$60.76	$57.25 - $63.93
Q1 2016	28,404	$2,068	$56.58	$52.61 - $61.78
Q4 2015	27,041	$1,875	$53.38	$40.48 - $58.84
Q3 2015	10,121	$506	$42.50	$37.34 - $47.18
Q2 2015	17,958	$1,009	$47.89	$45.44 - $49.96
Q1 2015	18,661	$1,088	$52.00	$46.89 - $57.67
Q4 2014	30,011	$2,110	$52.04	$42.19 - $59.17
Q3 2014	30,328	$2,389	$48.63	$45.01 - $52.55
Q2 2014	30,372	$2,206	$42.48	$39.45 - $46.73
Q1 2014	31,915	$2,207	$41.11	$37.63 - $45.13
Q4 2013	31,808	$2,050	$39.78	$36.98 - $42.15
Q3 2013	33,847	$2,060	$36.71	$33.87 - $39.26
Q2 2013	33,778	$1,882	$33.95	$31.11 - $35.91