Star Equity Holdings, Inc.

STRR·NASDAQ·$11.55Share Price as of 11/2·$43MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/14/26 10-QQ1 ended 03/31/2605/12/26 10-KFY 202503/20/26 10-QQ3 ended 09/30/2511/14/25 10-QQ2 ended 06/30/2508/08/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report10/14/26 8-KCurrent report09/22/26 8-KCurrent report08/21/26 8-KCurrent report08/14/26

Prospectuses and Registrations

S-4Registration (business combination)10/19/26 424B5Prospectus supplement05/18/26 S-3Shelf registration03/24/26 S-8Registration of securities for employees08/21/25 424B3Prospectus07/23/25

Proxies

DEF 14ADefinitive proxy04/30/26 DEF 14ADefinitive proxy07/01/24 PRE 14APreliminary proxy06/18/24 DEF 14ADefinitive proxy10/05/23 DEF 14ADefinitive proxy04/21/22

Ownership

SC 13G/ABeneficial ownership (amended)10/28/26 Form 4Insider transaction10/26/26 Form 4Insider transaction10/21/26 Form 4Insider transaction10/16/26 Form 4Insider transaction10/13/26

Other

11-KEmployee stock purchase plan report06/26/26 EFFECTRequest for effectiveness04/01/26 UPLOADLetter from the SEC03/31/26 CORRESPCorrespondence with the SEC03/30/26 8-A12B8-A12B08/21/25