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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K □ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended July 2 , 2021 OR □ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from : to Commission File Number 001-31560 SEAGATE TECHNOLOGY HOLDINGS PUBLIC LIMITED COMPANY ( Exact name of registrant as specified in its charter ) Ireland ( State or other jurisdiction of incorporation or organization ) 38/39 Fitzwilliam Square Dublin 2 , Ireland ( Address of principal executive offices ) D02 NX53 ( Zip Code ) Registrant's telephone number , including area code : ( 353 ) ( 1 ) 234-3136 98-1597419 ( I.R.S. Employer Identification Number ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) STX Title of Each Class Ordinary Shares , par value $ 0.00001 per share Securities registered pursuant to Section 12 ( g ) of the Act : None Large accelerated filer Non - accelerated filer : Name of Each Exchange on Which Registered The NASDAQ Global Select Market Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes 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 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 No NO □ No | 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 No 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 : Smaller reporting company : Emerging growth company : 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 . 0 0 冈 Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No The aggregate market value of the voting and non - voting ordinary shares held by non - affiliates of the registrant as of January 1 , 2021 , the last business day of the registrant's most recently completed second fiscal quarter , was approximately $ 14.8 billion based upon the closing price reported for such date by the NASDAQ . The number of outstanding ordinary shares of the registrant as of August 2 , 2021 was 227,603,061 . DOCUMENTS INCORPORATED BY REFERENCE Portions of the definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A relating to the registrant's Annual General Meeting of Shareholders , to be held on October 20 , 2021 , will be incorporated by reference in this Form 10 - K in response to Items 10 , 11 , 12 , 13 and 14 of Part III . The definitive proxy statement will be filed with the SEC no later than 120 days after the registrant's fiscal year ended July 2 , 2021 .