KLA CORP

Ticker: KLAC CUSIP: 482480100 Class: COM NEW

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2025

Shares 104,854 Value ($000) $127,406 Avg Close $1171.91 Range $979.33 - $1286.81

Q3 2025

Shares 89,854 Value ($000) $96,917 Avg Close $930.36 Range $830.85 - $1083.78

Q2 2025

Shares 101,454 Value ($000) $90,876 Avg Close $748.55 Range $547.89 - $911.31

Q1 2025

Shares 101,654 Value ($000) $69,104 Avg Close $714.90 Range $626.53 - $787.27

Q4 2024

Shares 104,854 Value ($000) $66,071 Avg Close $669.07 Range $604.24 - $823.66

Q3 2024

Shares 86,670 Value ($000) $67,118 Avg Close $775.08 Range $639.56 - $884.65

Q2 2024

Shares 129,170 Value ($000) $106,502 Avg Close $728.44 Range $613.80 - $865.13

Q1 2024

Shares 103,170 Value ($000) $72,071 Avg Close $631.89 Range $533.07 - $718.19

Q4 2023

Shares 68,570 Value ($000) $39,860 Avg Close $510.90 Range $439.38 - $587.15

Q3 2023

Shares 114,970 Value ($000) $52,732 Avg Close $469.45 Range $431.39 - $509.83

Q2 2023

Shares 125,670 Value ($000) $60,952 Avg Close $407.84 Range $346.68 - $477.23

Q1 2023

Shares 127,670 Value ($000) $50,962 Avg Close $383.34 Range $350.54 - $417.01

Q4 2022

Shares 118,170 Value ($000) $44,554 Avg Close $337.92 Range $242.12 - $407.40

Q3 2022

Shares 118,470 Value ($000) $35,853 Avg Close $334.63 Range $272.74 - $384.72

Q2 2022

Shares 131,970 Value ($000) $42,109 Avg Close $323.74 Range $294.07 - $359.05

Q1 2022

Shares 148,870 Value ($000) $54,495 Avg Close $358.99 Range $298.47 - $438.16

Q4 2021

Shares 143,070 Value ($000) $61,536 Avg Close $369.50 Range $304.02 - $424.08

Q3 2021

Shares 151,070 Value ($000) $50,534 Avg Close $318.72 Range $273.94 - $358.15

Q2 2021

Shares 158,270 Value ($000) $51,313 Avg Close $304.93 Range $271.63 - $341.75

Q1 2021

Shares 153,270 Value ($000) $50,640 Avg Close $285.88 Range $244.18 - $324.26

Q4 2020

Shares 163,270 Value ($000) $42,272 Avg Close $220.47 Range $179.54 - $254.78

Q3 2020

Shares 166,570 Value ($000) $32,271 Avg Close $186.13 Range $161.70 - $206.30

Q2 2020

Shares 204,370 Value ($000) $39,746 Avg Close $160.31 Range $117.44 - $185.62

Q1 2020

Shares 546,356 Value ($000) $78,533 Avg Close $150.21 Range $103.06 - $171.72

Q4 2019

Shares 261,514 Value ($000) $46,594 Avg Close $155.73 Range $142.30 - $167.48

Q3 2019

Shares 373,714 Value ($000) $59,589 Avg Close $129.13 Range $106.76 - $150.68

Q2 2019

Shares 505,414 Value ($000) $59,740 Avg Close $106.14 Range $93.34 - $118.03

Q1 2019

Shares 273,900 Value ($000) $32,706 Avg Close $98.08 Range $77.84 - $114.05

Q4 2018

Shares 61,720 Value ($000) $5,523 Avg Close $84.23 Range $73.26 - $92.78

Q3 2018

Shares 85,620 Value ($000) $8,708 Avg Close $98.18 Range $89.72 - $109.57

Q2 2018

Shares 81,920 Value ($000) $8,399 Avg Close $97.03 Range $87.08 - $106.13

Q1 2018

Shares 154,500 Value ($000) $16,842 Avg Close $98.66 Range $84.98 - $110.22

Q4 2017

Shares 135,800 Value ($000) $14,269 Avg Close $92.93 Range $87.45 - $101.17

Q3 2017

Shares 146,700 Value ($000) $15,550 Avg Close $83.67 Range $76.77 - $93.25

Q2 2017

Shares 179,000 Value ($000) $16,380 Avg Close $86.97 Range $79.53 - $95.69

Q1 2017

Shares 323,700 Value ($000) $30,774 Avg Close $76.28 Range $67.20 - $84.16

Q4 2016

Shares 301,900 Value ($000) $23,753 Avg Close $65.71 Range $59.77 - $71.83

Q3 2016

Shares 1,127,352 Value ($000) $78,588 Avg Close $61.47 Range $57.31 - $66.21

Q2 2016

Shares 1,240,252 Value ($000) $90,848 Avg Close $60.76 Range $57.25 - $63.93

Q1 2016

Shares 1,136,952 Value ($000) $82,781 Avg Close $56.58 Range $52.61 - $61.78

Q4 2015

Shares 1,236,652 Value ($000) $85,762 Avg Close $53.38 Range $40.48 - $58.84

Q2 2015

Shares 122,900 Value ($000) $6,908 Avg Close $47.89 Range $45.44 - $49.96

Q1 2015

Shares 250,700 Value ($000) $14,613 Avg Close $52.00 Range $46.89 - $57.67

Q4 2014

Shares 248,000 Value ($000) $17,439 Avg Close $52.04 Range $42.19 - $59.17

Q3 2014

Shares 503,700 Value ($000) $39,681 Avg Close $48.63 Range $45.01 - $52.55

Q2 2014

Shares 637,900 Value ($000) $46,337 Avg Close $42.48 Range $39.45 - $46.73

Q1 2014

Shares 638,100 Value ($000) $44,118 Avg Close $41.11 Range $37.63 - $45.13

Q4 2013

Shares 501,400 Value ($000) $32,320 Avg Close $39.78 Range $36.98 - $42.15

Q3 2013

Shares 249,600 Value ($000) $15,188 Avg Close $36.71 Range $33.87 - $39.26

Q2 2013

Shares 58,800 Value ($000) $3,277 Avg Close $33.95 Range $31.11 - $35.91

Q1 2013

Shares 10,000 Value ($000) $527 Avg Close $32.87 Range $29.13 - $35.65

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	104,854	$127,406	$1171.91	$979.33 - $1286.81
Q3 2025	89,854	$96,917	$930.36	$830.85 - $1083.78
Q2 2025	101,454	$90,876	$748.55	$547.89 - $911.31
Q1 2025	101,654	$69,104	$714.90	$626.53 - $787.27
Q4 2024	104,854	$66,071	$669.07	$604.24 - $823.66
Q3 2024	86,670	$67,118	$775.08	$639.56 - $884.65
Q2 2024	129,170	$106,502	$728.44	$613.80 - $865.13
Q1 2024	103,170	$72,071	$631.89	$533.07 - $718.19
Q4 2023	68,570	$39,860	$510.90	$439.38 - $587.15
Q3 2023	114,970	$52,732	$469.45	$431.39 - $509.83
Q2 2023	125,670	$60,952	$407.84	$346.68 - $477.23
Q1 2023	127,670	$50,962	$383.34	$350.54 - $417.01
Q4 2022	118,170	$44,554	$337.92	$242.12 - $407.40
Q3 2022	118,470	$35,853	$334.63	$272.74 - $384.72
Q2 2022	131,970	$42,109	$323.74	$294.07 - $359.05
Q1 2022	148,870	$54,495	$358.99	$298.47 - $438.16
Q4 2021	143,070	$61,536	$369.50	$304.02 - $424.08
Q3 2021	151,070	$50,534	$318.72	$273.94 - $358.15
Q2 2021	158,270	$51,313	$304.93	$271.63 - $341.75
Q1 2021	153,270	$50,640	$285.88	$244.18 - $324.26
Q4 2020	163,270	$42,272	$220.47	$179.54 - $254.78
Q3 2020	166,570	$32,271	$186.13	$161.70 - $206.30
Q2 2020	204,370	$39,746	$160.31	$117.44 - $185.62
Q1 2020	546,356	$78,533	$150.21	$103.06 - $171.72
Q4 2019	261,514	$46,594	$155.73	$142.30 - $167.48
Q3 2019	373,714	$59,589	$129.13	$106.76 - $150.68
Q2 2019	505,414	$59,740	$106.14	$93.34 - $118.03
Q1 2019	273,900	$32,706	$98.08	$77.84 - $114.05
Q4 2018	61,720	$5,523	$84.23	$73.26 - $92.78
Q3 2018	85,620	$8,708	$98.18	$89.72 - $109.57
Q2 2018	81,920	$8,399	$97.03	$87.08 - $106.13
Q1 2018	154,500	$16,842	$98.66	$84.98 - $110.22
Q4 2017	135,800	$14,269	$92.93	$87.45 - $101.17
Q3 2017	146,700	$15,550	$83.67	$76.77 - $93.25
Q2 2017	179,000	$16,380	$86.97	$79.53 - $95.69
Q1 2017	323,700	$30,774	$76.28	$67.20 - $84.16
Q4 2016	301,900	$23,753	$65.71	$59.77 - $71.83
Q3 2016	1,127,352	$78,588	$61.47	$57.31 - $66.21
Q2 2016	1,240,252	$90,848	$60.76	$57.25 - $63.93
Q1 2016	1,136,952	$82,781	$56.58	$52.61 - $61.78
Q4 2015	1,236,652	$85,762	$53.38	$40.48 - $58.84
Q2 2015	122,900	$6,908	$47.89	$45.44 - $49.96
Q1 2015	250,700	$14,613	$52.00	$46.89 - $57.67
Q4 2014	248,000	$17,439	$52.04	$42.19 - $59.17
Q3 2014	503,700	$39,681	$48.63	$45.01 - $52.55
Q2 2014	637,900	$46,337	$42.48	$39.45 - $46.73
Q1 2014	638,100	$44,118	$41.11	$37.63 - $45.13
Q4 2013	501,400	$32,320	$39.78	$36.98 - $42.15
Q3 2013	249,600	$15,188	$36.71	$33.87 - $39.26
Q2 2013	58,800	$3,277	$33.95	$31.11 - $35.91
Q1 2013	10,000	$527	$32.87	$29.13 - $35.65