KLA Corporation
Change company
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
IN
IE
US
US
US
US
US
US
AU
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
BM
US
US
US
US
US
US
US
US
US
US
US
US
US
JP
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
CA
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
US
KLA Corporation (KLAC) SEC Filings
Browse all KLA Corporation SEC filings, including Annual reports (10-K), Quarterly reports (10-Q), 8-K, proxy statements (DEF 14A), and insider filings (Form 4). Access official documents by filing date, reporting period, and form type. ...more
KLA Corporation Reports: Annual 10-K, Quarterly 10-Q & SEC Filings
SEC Filings
Date
2026
SC 13G/A
Updated passive ownership disclosure
8-K
Material company events (earnings, M&A, or leadership changes)
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
10-Q
Quarterly financial results and management updates
8-K
Material company events (earnings, M&A, or leadership changes)
2025
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
3
Initial disclosure of insider ownership
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
S-8
Registration of shares for employee stock plans
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
3
Initial disclosure of insider ownership
10-Q
Quarterly financial results and management updates
8-K
Material company events (earnings, M&A, or leadership changes)
DEF 14A
Final shareholder voting details (board elections and executive pay)
ARS
Annual Report to Shareholders
DEFA14A
Additional or supplemental proxy disclosures
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
10-K
Annual financial results and management updates
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
KLA Corporation (Form SC 13G/A) 2026
Ownership & Other / Updated passive ownership disclosure
Mar 27, 2026
