☐ 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 1-8462 GRAHAM CORPORATION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or UNITED STATES SECURITIES AND EXCHANGE COMMISSION (Exact name of registrant as specified in its charter) Delaware 16-1194720 (State ...