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 (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 480 Pleasant Street Watertown, MA (Address of principal executive offices) 26-2774444 (I.R.S. Employer Identification No.) 02472 (Zip Code) For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURS ...