{"transactions":[{"id":681748,"issuer":{"id":7343,"kind":"organization","name":"Star Equity Holdings, Inc.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Unit","published_at":"2026-08-19T22:07:57.000Z","date":"2026-08-18","kind":"exercise","planned":false,"acquired":false,"shares":535,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents the right to receive, at settlement, one share of the Issuer's 10.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share (the \"Series A Preferred Stock\")."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents the right to receive, at settlement, one share of the Issuer's 10.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share (the \"Series A Preferred Stock\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On August 18, 2025, the Reporting Person was granted Restricted Stock Units by Star Operating Companies, Inc. (\"SOC\"), each of which represented the right to receive, at settlement, one share of SOC Series A Preferred Stock (\"SOC RSUs\"). Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of the Issuer, the Reporting Person's SOC RSUs were exchanged for 535 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"On August 18, 2025, the Reporting Person was granted Restricted Stock Units by Star Operating Companies, Inc. (\"SOC\"), each of which represented the right to receive, at settlement, one share of SOC Series A Preferred Stock (\"SOC RSUs\"). Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of the Issuer, the Reporting Person's SOC RSUs were exchanged for 535 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026."}],"balance_after":0,"derivative":{"underlying":"Series A Preferred Stock","underlying_shares":535},"source":{"system":"sec-edgar","filing":"0002029470-26-000014","document":"wk-form4_1787177275.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2029470/000202947026000014/wk-form4_1787177275.xml","form_type":"4"}},{"id":681747,"issuer":{"id":7343,"kind":"organization","name":"Star Equity Holdings, Inc.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-08-19T22:07:57.000Z","date":"2026-08-18","kind":"exercise","planned":false,"acquired":true,"shares":535,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents the right to receive, at settlement, one share of the Issuer's 10.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share (the \"Series A Preferred Stock\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date."}],"balance_after":5946,"source":{"system":"sec-edgar","filing":"0002029470-26-000014","document":"wk-form4_1787177275.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029470/000202947026000014/wk-form4_1787177275.xml","form_type":"4"}},{"id":738080,"issuer":{"id":7343,"kind":"organization","name":"Star Equity Holdings, Inc.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-15T20:10:55.000Z","date":"2026-06-12","kind":"purchase","planned":false,"acquired":true,"shares":500,"price":11.23,"value":5615.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 12,516 Restricted Stock Units credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated. Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock payable upon the first anniversary of the respective dates of grant of each award of Restricted Stock Units."}],"balance_after":20178,"source":{"system":"sec-edgar","filing":"0002029470-26-000012","document":"wk-form4_1781554252.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029470/000202947026000012/wk-form4_1781554252.xml","form_type":"4"}},{"id":740280,"issuer":{"id":7343,"kind":"organization","name":"Star Equity Holdings, Inc.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-06-13T00:57:21.000Z","date":"2026-06-10","kind":"purchase","planned":false,"acquired":true,"shares":300,"price":9.81,"value":2943.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were purchased in multiple transactions at prices ranging from $9.78 to $9.82 on June 10, 2026. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price such shares were purchased."}],"balance_after":5411,"source":{"system":"sec-edgar","filing":"0002029470-26-000010","document":"wk-form4_1781312238.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029470/000202947026000010/wk-form4_1781312238.xml","form_type":"4"}},{"id":752297,"issuer":{"id":7343,"kind":"organization","name":"Star Equity Holdings, Inc.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T22:06:42.000Z","date":"2026-06-01","kind":"purchase","planned":false,"acquired":true,"shares":700,"price":11.72,"value":8204.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were purchased in multiple transactions at prices ranging from $11.65 to $11.79, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price such shares were purchased."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 12,516 Restricted Stock Units credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated. 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Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock payable upon the first anniversary of the grant date. The number of Restricted Stock Units granted was determined using the closing price on May 27, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 12,516 Restricted Stock Units credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated. 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Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of\nthe Issuer, the Reporting Person's SOC RSUs were exchanged for 535 Restricted Stock Units. 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Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of the Issuer, the Reporting Person's SOC RSUs were exchanged for 460 Restricted Stock Units. 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Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of the Issuer, the Reporting Person's SOC RSUs were exchanged for 341 Restricted Stock Units. 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Each Restricted Stock Unit represents the right to receive, at settlement, one share of Common Stock payable upon the first anniversary of the Grant Date. The number of Restricted Stock Units granted was determined using the closing price on September 9, 2025."},{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 7,012 Restricted Stock Units credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated. Each Restricted Stock Unit represents the right to receive, at settlement, one share of Common Stock payable upon the first anniversary of the Grant Date. 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Mr. Fruhbeis undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price such shares were purchased."}],"balance_after":1859,"source":{"system":"sec-edgar","filing":"0001210708-25-000079","document":"wk-form4_1756847988.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029470/000121070825000079/wk-form4_1756847988.xml","form_type":"4"}},{"id":1058847,"issuer":{"id":76212,"kind":"organization","name":"STAR EQUITY HOLDINGS, INC.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Unit","published_at":"2025-08-22T16:18:01.000Z","date":"2025-08-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":535,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"These Restricted Stock Units each represent the right to receive, at settlement, one share of Star 10% Series A Cumulative Perpetual Preferred Stock. 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These Restricted Stock Units were assumed by Hudson in the Merger and exchanged for .23 Hudson Restricted Stock Units for each Star Restricted Stock Unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The Restricted Stock Units granted on March 25, 2025 (the \"Second Grant Date\") are scheduled to vest upon the first anniversary of the Second Grant Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units granted on March 25, 2025 (the \"Second Grant Date\") are scheduled to vest upon the first anniversary of the Second Grant Date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":2004},"source":{"system":"sec-edgar","filing":"0000707388-25-000140","document":"wk-form4_1755893876.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/707388/000070738825000140/wk-form4_1755893876.xml","form_type":"4"}},{"id":1058844,"issuer":{"id":76212,"kind":"organization","name":"STAR EQUITY HOLDINGS, INC.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Unit","published_at":"2025-08-22T16:18:01.000Z","date":"2025-08-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1485,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These Restricted Stock Units each represent the right to receive, at settlement, one share of Star common stock. These Restricted Stock Units were assumed by Hudson in the Merger and exchanged for .23 Hudson Restricted Stock Units for each Star Restricted Stock Unit."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"These Restricted Stock Units each represent the right to receive, at settlement, one share of Star common stock. These Restricted Stock Units were assumed by Hudson in the Merger and exchanged for .23 Hudson Restricted Stock Units for each Star Restricted Stock Unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Stock Units granted on November 22, 2024 (the \"Grant Date\") are scheduled to vest upon the first anniversary of the Grant Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Restricted Stock Units granted on November 22, 2024 (the \"Grant Date\") are scheduled to vest upon the first anniversary of the Grant Date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1485},"source":{"system":"sec-edgar","filing":"0000707388-25-000140","document":"wk-form4_1755893876.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/707388/000070738825000140/wk-form4_1755893876.xml","form_type":"4"}},{"id":1058843,"issuer":{"id":76212,"kind":"organization","name":"STAR EQUITY HOLDINGS, INC.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"10% Series A Cumulative Perpetual Preferred Stock","published_at":"2025-08-22T16:18:01.000Z","date":"2025-08-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":4576,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Disposed of pursuant to the Merger in exchange for 4,576 shares of Hudson Series A Preferred Stock."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000707388-25-000140","document":"wk-form4_1755893876.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/707388/000070738825000140/wk-form4_1755893876.xml","form_type":"4"}},{"id":1058842,"issuer":{"id":76212,"kind":"organization","name":"STAR EQUITY HOLDINGS, INC.","symbol":"STRR"},"owners":[{"id":21729,"kind":"person","name":"Fruhbeis Todd Michael","position":1,"cik":"0002029470","reported_name":"Fruhbeis Todd Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-08-22T16:18:01.000Z","date":"2025-08-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":3303,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Disposed of pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025 (the \"Merger Agreement\"), by and among Star Equity Holdings, Inc. (\"Star\"), Hudson Global, Inc. 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