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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 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 1-1373 MODINE MANUFACTURING COMPANY ( Exact name of registrant as specified in its charter ) to Wisconsin ( State or other jurisdiction of incorporation or organization ) 1500 DeKoven Avenue , Racine , Wisconsin ( Address of principal executive offices ) Registrant's telephone number , including area code ( 262 ) 636-1200 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , $ 0.625 par value Trading Symbol ( s ) MOD 39-0482000 ( I.R.S. Employer Identification No. ) 53403 ( Zip Code ) Name of each exchange on which registered New York Stock Exchange Securities Registered pursuant to Section 12 ( g ) of the Act : None 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 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