UNITED STATES SECURITIES AND EXCHANGE COMMISSION 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 March 31, 2025 ☐ 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: 001-35947 Star Equity Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 33-0145723 (State or Other Jurisd ...

For immediate release May 14, 2025 Star Equity Holdings, Inc. Announces 2025 First Quarter Financial Results Q1 2025 revenues increased to $12.9 million vs. $9.1 million in Q1 2024 Alliance Drilling Tools acquisition marks entry into Energy Services Quarter-end Building Solutions backlog stands at record $27.9 million Old Greenwich, CT. - Star Equity Holdings, Inc. (Nasdaq: STRR; STRRP) ("Star" or the "Company"), a diversified holding company, reported today its financial results for the first quarter (Q1) ...