Page 1

Table of Contents ☑ ☐ 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 March 31 , 2021 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from Commission File Number : 0-29174 to LOGITECH INTERNATIONAL S.A. ( Exact name of registrant as specified in its charter ) Canton of Vaud , Switzerland ( State or other jurisdiction of incorporation or organization ) Logitech International S.A. EPFL - Quartier de l'Innovation Daniel Borel Innovation Center 1015 Lausanne , Switzerland c / o Logitech Inc. 7700 Gateway Boulevard Newark , California 94560 ( Address of principal executive offices and zip code ) ( 510 ) 795-8500 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : None ( I.R.S. Employer Identification No. ) Title of each class Registered Shares par value CHF 0.25 per share Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : None Name of each exchange on which registered The Nasdaq Global Select Market ; SIX Swiss Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes ☑ No □ 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 No ☑ 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 □ 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 . Large accelerated filer Accelerated filer ☐ Non - 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 .