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Table of Contents ( Mark One ) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended June 30 , 2021 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Delaware ( State or other jurisdiction of incorporation or organization ) One Technology Drive , Milpitas , ( Address of Principal Executive Offices ) FORM 10 - K Commission File Number 000-09992 KLA CORPORATION ( Exact name of registrant as specified in its charter ) California Title of Each Class Common Stock , $ 0.001 par value per share 04-2564110 ( I.R.S. Employer Identification No. ) Registrant's Telephone Number , Including Area Code : ( 408 ) 875-3000 Securities Registered Pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) . KLAC 95035 ( Zip Code ) Name of Each Exchange on Which Registered The Nasdaq Stock Market , LLC The NASDAQ Global Select Market Securities Registered Pursuant to Section 12 ( g ) of the Act : None ( Title of Class ) Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes x No o Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes o No x Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes x No o Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes x No o Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Accelerated filer o Smaller reporting company Emerging growth company Large Accelerated Filer x Non - accelerated filer o If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No x The aggregate market value of the voting and non - voting common stock held by non - affiliates of the registrant based upon the closing price of the registrant's stock , as of December 31 , 2020 , was approximately $ 39.86 billion . The registrant had 152,737,157 shares of common stock outstanding as of July 19 , 2021 . DOCUMENTS INCORPORATED BY REFERENCE Portions of the Proxy Statement for the 2021 Annual Meeting of Stockholders ( " Proxy Statement " ) to be filed pursuant to Regulation 14A within 120 days after the registrant's fiscal year ended June 30 , 2021 , are incorporated by reference into Part III of this report .