Star Equity Holdings (STRR) investor relations material

Company overview and business model

• Operates as a diversified multi-industry holding company with four segments: Building Solutions, Business Services, Energy Services, and Investments.

• Building Solutions focuses on modular buildings and engineered wood products; Business Services provides recruitment and workforce solutions globally; Energy Services supplies drilling tools; Investments manages real estate and minority stakes in companies.

• Growth strategy centers on organic expansion, broadening service offerings, and acquiring complementary businesses, with ongoing evaluation of strategic alternatives to enhance shareholder value.

• Recent merger with Star Operating Companies expanded the business and resulted in a name change and new share issuance.

Financial performance and metrics

• As of March 20, 2026, 3,714,547 shares of Common Stock and 2,369,782 shares of Preferred Stock were outstanding.

• Aggregate market value of voting and non-voting Common Stock held by non-affiliates was approximately $28.59 million.

Use of proceeds and capital allocation

• Net proceeds from securities sales will be used for general corporate purposes, with specifics to be detailed in future prospectus supplements.

• Proceeds may be temporarily invested prior to use.