UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 For the quarterly period ended: September 30, 2023 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 Commission File Number: 001-14041 HAEMONETICS CORPORATION (Exact name of registrant as specified in its charter) Massachusetts 04-2882273 (State or other jurisdiction of (I.R.S. Employer incorpor ...