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Mailing Address ONE TECHNOLOGY DRIVE MILPITAS CA 95035
Business Address ONE TECHNOLOGY DRIVE MILPITAS CA 95035 4088753000
KLA CORP CIK#: 0000319201 (see all company filings)

SIC: 3827 - OPTICAL INSTRUMENTS & LENSES
State location: CA | State of Inc.: DE | Fiscal Year End: 0630
formerly: KLA INSTRUMENTS CORP (filings through 1997-02-11)
formerly: KLA TENCOR CORP (filings through 2019-07-03)
(CF Office: 08 Industrial Applications and Services)
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Items 1 - 40  0000319201 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
8-K  Documents   Interactive Data Current report, items 7.01 and 9.01
Acc-no: 0001193125-24-070222 (34 Act)  Size: 230 KB
2024-03-18 000-09992
24759903
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-24-021294 (34 Act)  Size: 13 KB
2024-02-13 005-33189
24628857
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-24-027569 (34 Act)  Size: 150 KB
2024-02-08 000-09992
24606885
8-K  Documents   Interactive Data Current report, items 1.01, 2.03, and 9.01
Acc-no: 0001193125-24-021853 (34 Act)  Size: 539 KB
2024-02-01 000-09992
24587038
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-24-021192 (33 Act)  Size: 670 KB
2024-02-01 333-265497
24584627
FWP  Documents Filing under Securities Act Rules 163/433 of free writing prospectuses
Acc-no: 0001193125-24-019540 (34 Act)  Size: 19 KB
2024-01-30 333-265497
24579504
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-24-018864 (33 Act)  Size: 627 KB
2024-01-30 333-265497
24576048
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000319201-24-000006 (34 Act)  Size: 14 MB
2024-01-26 000-09992
24567841
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001086364-24-003709 (34 Act)  Size: 13 KB
2024-01-25 005-33189
24562925
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000319201-24-000003 (34 Act)  Size: 517 KB
2024-01-25 000-09992
24562210
8-K  Documents   Interactive Data Current report, items 5.02, 5.07, 8.01, and 9.01
Acc-no: 0001193125-23-270369 (34 Act)  Size: 323 KB
2023-11-03 000-09992
231376332
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001193125-23-268162 (33 Act)  Size: 199 KB
2023-11-01 333-275244
231368080
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000319201-23-000039 (34 Act)  Size: 12 MB
2023-10-27 000-09992
231355506
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000319201-23-000037 (34 Act)  Size: 489 KB
2023-10-25 000-09992
231345876
ARS  Documents Annual Report to Security Holders
Acc-no: 0001193125-23-239582 (34 Act)  Size: 2 MB
2023-09-21 000-09992
231269257
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-23-239575 (34 Act)  Size: 42 KB
2023-09-21 000-09992
231269230
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001193125-23-239572 (34 Act)  Size: 12 MB
2023-09-21 000-09992
231269213
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-229585 (34 Act)  Size: 161 KB
2023-09-06 000-09992
231239174
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0000319201-23-000031 (34 Act)  Size: 19 MB
2023-08-04 000-09992
231144097
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-202902 (34 Act)  Size: 149 KB
2023-08-03 000-09992
231140586
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000319201-23-000027 (34 Act)  Size: 503 KB
2023-07-27 000-09992
231118469
8-K  Documents   Interactive Data Current report, items 5.02, 7.01, and 9.01
Acc-no: 0001193125-23-192257 (34 Act)  Size: 154 KB
2023-07-24 000-09992
231105157
SD  Documents Specialized disclosure report
Acc-no: 0000319201-23-000023 (34 Act)  Size: 386 KB
2023-05-23 000-09992
23948593
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-137082 (34 Act)  Size: 149 KB
2023-05-05 000-09992
23893779
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000319201-23-000020 (34 Act)  Size: 15 MB
2023-04-28 000-09992
23866956
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000319201-23-000016 (34 Act)  Size: 524 KB
2023-04-26 000-09992
23850408
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001562230-23-000056 (34 Act)  Size: 18 KB
2023-02-13 005-33189
23617986
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001104659-23-016303 (34 Act)  Size: 13 KB
2023-02-09 005-33189
23603550
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001193125-23-024406 (34 Act)  Size: 150 KB
2023-02-06 000-09992
23587626
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0001193125-23-024124 (33 Act)  Size: 71 KB
2023-02-03 333-269556
23585804
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001306550-23-004571 (34 Act)  Size: 13 KB
2023-01-30 005-33189
23567683
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000319201-23-000010 (34 Act)  Size: 15 MB
2023-01-27 000-09992
23563250
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000319201-23-000008 (34 Act)  Size: 541 KB
2023-01-26 000-09992
23558034
8-K  Documents   Interactive Data Current report, items 5.03, 5.07, 8.01, and 9.01
Acc-no: 0001193125-22-277886 (34 Act)  Size: 390 KB
2022-11-04 000-09992
221362389
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001628280-22-027311 (34 Act)  Size: 13 MB
2022-10-28 000-09992
221342296
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001628280-22-027085 (34 Act)  Size: 515 KB
2022-10-26 000-09992
221333787
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-22-266400 (34 Act)  Size: 1 MB
2022-10-21 000-09992
221322286
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-22-260304 (34 Act)  Size: 4 MB
2022-10-11 000-09992
221302594
PX14A6G  Documents Notice of exempt solicitation submitted by non-management
Acc-no: 0001214659-22-012072 (34 Act)  Size: 54 KB
2022-10-06 000-09992
221296800
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-22-249178 (34 Act)  Size: 801 KB
2022-09-22 000-09992
221259328