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Nasdaq · USD

STRR

Star Equity Holdings, Inc.

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7343
SEC CIK
0001210708
Parsed reports
401

Last 12 months

Inside the activity.

49 purchase rows · 17 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202530
Dec 202544
Jan 202600
Feb 202600
Mar 2026104
Apr 202600
May 2026120
Jun 2026200
Jul 202600
Aug 202600
Sep 202600
Oct 202609

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
October 13, 2026 Filed Oct 13, 2026 20:48 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.13 $9,130.00
Disclosure

SEC source: 0001548312-26-000049 · wk-form4_1791924499.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 756,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.12 to $9.29 on October 9, 2026, $9.12 to $9.29 on October 12, 2026, and $9.11 to $9.17 on October 13, 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 sold at each separate price such shares were sold.

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October 12, 2026 Filed Oct 13, 2026 20:48 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.13 $9,130.00
Disclosure

SEC source: 0001548312-26-000049 · wk-form4_1791924499.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 757,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.12 to $9.29 on October 9, 2026, $9.12 to $9.29 on October 12, 2026, and $9.11 to $9.17 on October 13, 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 sold at each separate price such shares were sold.

Read SEC document
October 09, 2026 Filed Oct 13, 2026 20:48 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.14 $9,140.00
Disclosure

SEC source: 0001548312-26-000049 · wk-form4_1791924499.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 758,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.12 to $9.29 on October 9, 2026, $9.12 to $9.29 on October 12, 2026, and $9.11 to $9.17 on October 13, 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 sold at each separate price such shares were sold.

Read SEC document
October 08, 2026 Filed Oct 8, 2026 21:52 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.17 $9,170.00
Disclosure

SEC source: 0001548312-26-000047 · wk-form4_1791496325.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 759,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.16 to $9.22 on October 6, 2026, $9.16 to $9.23 on October 7, 2026, and $9.16 to $9.21 on October 8, 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 sold at each separate price such shares were sold.

Read SEC document
October 07, 2026 Filed Oct 8, 2026 21:52 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.17 $9,170.00
Disclosure

SEC source: 0001548312-26-000047 · wk-form4_1791496325.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 760,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.16 to $9.22 on October 6, 2026, $9.16 to $9.23 on October 7, 2026, and $9.16 to $9.21 on October 8, 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 sold at each separate price such shares were sold.

Read SEC document
October 06, 2026 Filed Oct 8, 2026 21:52 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.20 $9,200.00
Disclosure

SEC source: 0001548312-26-000047 · wk-form4_1791496325.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 761,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.16 to $9.22 on October 6, 2026, $9.16 to $9.23 on October 7, 2026, and $9.16 to $9.21 on October 8, 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 sold at each separate price such shares were sold.

Read SEC document
October 05, 2026 Filed Oct 5, 2026 21:31 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.21 $9,210.00
Disclosure

SEC source: 0001548312-26-000045 · wk-form4_1791235858.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 762,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.13 to $9.31 on October 1, 2026, $9.22 to $9.31 on October 2, 2026, and $9.17 to $9.23 on October 5, 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 sold at each separate price such shares were sold.

Read SEC document
October 02, 2026 Filed Oct 5, 2026 21:31 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.25 $9,250.00
Disclosure

SEC source: 0001548312-26-000045 · wk-form4_1791235858.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 763,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.13 to $9.31 on October 1, 2026, $9.22 to $9.31 on October 2, 2026, and $9.17 to $9.23 on October 5, 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 sold at each separate price such shares were sold.

Read SEC document
October 01, 2026 Filed Oct 5, 2026 21:31 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
SaleSeries A Preferred Stock 1,000 $9.22 $9,220.00
Disclosure

SEC source: 0001548312-26-000045 · wk-form4_1791235858.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 764,937

F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person and assumed by Clear Street LLC, providing for the sale of shares of the Issuer's Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share. Sales under the plan were permitted to begin on October 1, 2026, and the plan expires on October 1, 2028, unless terminated earlier.

F2 · price: The price reported in Column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $9.13 to $9.31 on October 1, 2026, $9.22 to $9.31 on October 2, 2026, and $9.17 to $9.23 on October 5, 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 sold at each separate price such shares were sold.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:05 UTC Exercise / conversionRestricted Stock Unit · Derivative 460 Not disclosed Not disclosed
Disclosure

SEC source: 0002029196-26-000011 · wk-form4_1787177144.xml · derivative · entry 2

Palmer Jennifer · CIK 0002029196 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series A Preferred Stock · 460 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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").

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

F1 · price: 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").

F3 · derivative.exercise_date: 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 460 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

F3 · derivative.expiration_date: 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 460 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:05 UTC Exercise / conversionSeries A Preferred Stock 460 Not disclosed Not disclosed
Disclosure

SEC source: 0002029196-26-000011 · wk-form4_1787177144.xml · nonDerivative · entry 1

Palmer Jennifer · CIK 0002029196 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 920

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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").

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:07 UTC Exercise / conversionRestricted Stock Unit · Derivative 535 Not disclosed Not disclosed
Disclosure

SEC source: 0002029470-26-000014 · wk-form4_1787177275.xml · derivative · entry 2

Fruhbeis Todd Michael · CIK 0002029470 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series A Preferred Stock · 535 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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").

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

F1 · price: 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").

F3 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: 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.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:07 UTC Exercise / conversionSeries A Preferred Stock 535 Not disclosed Not disclosed
Disclosure

SEC source: 0002029470-26-000014 · wk-form4_1787177275.xml · nonDerivative · entry 1

Fruhbeis Todd Michael · CIK 0002029470 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,946

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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").

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:06 UTC Exercise / conversionRestricted Stock Unit · Derivative 485 Not disclosed Not disclosed
Disclosure

SEC source: 0002029214-26-000011 · wk-form4_1787177212.xml · derivative · entry 2

Parks Louis A. · CIK 0002029214 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series A Preferred Stock · 485 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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").

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

F1 · price: 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").

F3 · derivative.exercise_date: 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 485 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

F3 · derivative.expiration_date: 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 485 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:06 UTC Exercise / conversionSeries A Preferred Stock 485 Not disclosed Not disclosed
Disclosure

SEC source: 0002029214-26-000011 · wk-form4_1787177212.xml · nonDerivative · entry 1

Parks Louis A. · CIK 0002029214 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 970

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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").

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:05 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
Exercise / conversionRestricted Stock Unit · Derivative 860 Not disclosed Not disclosed
Disclosure

SEC source: 0001548312-26-000043 · wk-form4_1787177121.xml · derivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series A Preferred Stock · 860 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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").

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

F1 · price: 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").

F3 · derivative.exercise_date: 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 860 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

F3 · derivative.expiration_date: 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 860 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on August 18, 2026.

Read SEC document
August 18, 2026 Filed Aug 19, 2026 22:05 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
Exercise / conversionSeries A Preferred Stock 860 Not disclosed Not disclosed
Disclosure

SEC source: 0001548312-26-000043 · wk-form4_1787177121.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 765,937

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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").

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of Series A Preferred Stock on their scheduled vesting date.

Read SEC document
July 27, 2026 Filed Jul 30, 2026 00:17 UTC
Coleman Richard Kenneth Jr.Chief Operating Officer
Exercise / conversionRestricted Stock Unit · Derivative 1,161 Not disclosed Not disclosed
Disclosure

SEC source: 0001556224-26-000004 · wk-form4_1785370642.xml · derivative · entry 2

Coleman Richard Kenneth Jr. · CIK 0001556224 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock. · 1,161 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of common stock on their scheduled vesting date.

F1 · price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F4 · derivative.exercise_date: On July 27, 2023, the Reporting Person was granted Restricted Stock Units, as to this grant, one-third of the Restricted Stock Units vested on July 27, 2024, one-third of the Restricted Stock Units vested on July 27, 2025, and one-third of the Restricted Stock Units vested on July 27, 2026.

F4 · derivative.expiration_date: On July 27, 2023, the Reporting Person was granted Restricted Stock Units, as to this grant, one-third of the Restricted Stock Units vested on July 27, 2024, one-third of the Restricted Stock Units vested on July 27, 2025, and one-third of the Restricted Stock Units vested on July 27, 2026.

Read SEC document
July 27, 2026 Filed Jul 30, 2026 00:17 UTC
Coleman Richard Kenneth Jr.Chief Operating Officer
Exercise / conversionCommon Stock 1,161 Not disclosed Not disclosed
Disclosure

SEC source: 0001556224-26-000004 · wk-form4_1785370642.xml · nonDerivative · entry 1

Coleman Richard Kenneth Jr. · CIK 0001556224 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,161

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of common stock on their scheduled vesting date.

F3 · balance_after: Includes 15,624 shares of common stock and 4,537 shares of RSUs granted to the Reporting Person on November 8, 2024, March 25, 2025, and March 25, 2026. The RSUs are subject to the Reporting Person continuing to provide service through the RSU's applicable vesting date.

Read SEC document
July 27, 2026 Filed Jul 30, 2026 00:15 UTC
Bible Hannah M.Chief Legal Officer
Exercise / conversionRestricted Stock Unit · Derivative 376 Not disclosed Not disclosed
Disclosure

SEC source: 0001607210-26-000004 · wk-form4_1785370539.xml · derivative · entry 3

Bible Hannah M. · CIK 0001607210 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock. · 376 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_price: This transaction represents the settlement of Restricted Stock Units in shares of common stock on their scheduled vesting date.

F1 · price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F5 · derivative.exercise_date: On July 27, 2023, the Reporting Person was granted Restricted Stock Units, as to this grant, one-third of the Restricted Stock Units vested on July 27, 2024, one-third of the Restricted Stock Units vested on July 27, 2025, and one-third of the Restricted Stock Units vested on July 27, 2026.

F5 · derivative.expiration_date: On July 27, 2023, the Reporting Person was granted Restricted Stock Units, as to this grant, one-third of the Restricted Stock Units vested on July 27, 2024, one-third of the Restricted Stock Units vested on July 27, 2025, and one-third of the Restricted Stock Units vested on July 27, 2026.

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July 27, 2026 Filed Jul 30, 2026 00:15 UTC
Bible Hannah M.Chief Legal Officer
Tax withholdingCommon Stock 111 $11.00 $1,221.00
Disclosure

SEC source: 0001607210-26-000004 · wk-form4_1785370539.xml · nonDerivative · entry 2

Bible Hannah M. · CIK 0001607210 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,106

F3 · shares: Shares withheld by Issuer to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units. No shares were sold.

F4 · balance_after: Includes 1,485 shares of common stock and 1,621 shares of RSUs granted to the Reporting Person on November 8, 2024, March 25, 2025, and March 25, 2026. The RSUs are subject to the Reporting Person continuing to provide service through the RSU's applicable vesting date.

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July 27, 2026 Filed Jul 30, 2026 00:15 UTC
Bible Hannah M.Chief Legal Officer
Exercise / conversionCommon Stock 376 Not disclosed Not disclosed
Disclosure

SEC source: 0001607210-26-000004 · wk-form4_1785370539.xml · nonDerivative · entry 1

Bible Hannah M. · CIK 0001607210 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,217

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

F2 · price: This transaction represents the settlement of Restricted Stock Units in shares of common stock on their scheduled vesting date.

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July 27, 2026 Filed Jul 30, 2026 00:11 UTC
Miles Shawn SpainExecutive Vice President
Tax withholdingCommon Stock 117 $11.00 $1,287.00
Disclosure

SEC source: 0001742046-26-000004 · wk-form4_1785370273.xml · nonDerivative · entry 1

Miles Shawn Spain · CIK 0001742046 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,782

F1 · shares: Shares withheld by Issuer to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units each representing the right to receive, at settlement, one share of common stock (the "RSUs"). No shares were sold.

F2 · balance_after: Includes 1,943 shares of common stock and 5,839 shares of RSUs granted to the Reporting Person on November 8, 2024, March 25, 2025, and March 25, 2026. The RSUs are subject to the Reporting Person continuing to provide service through the RSU's applicable vesting date.

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July 15, 2026 Filed Jul 16, 2026 22:12 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
GrantCommon Stock. 5,388 $0.00 $0.00
Disclosure

SEC source: 0001548312-26-000041 · wk-form4_1784239938.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,131,102

F1 · shares: Includes 5,388 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated. Mr. Eberwein has elected to receive fifty percent of his base salary in the form of such restricted stock. Each share of restricted stock shall vest upon the first anniversary of the grant date and represents the right to receive, at settlement, one share of common stock.

F2 · balance_after: Includes (i) 26,513 shares of restricted stock and (ii) 6,750 RSUs credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; and (iii) 1,097,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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June 29, 2026 Filed Jun 29, 2026 22:22 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 5,000 $11.01 $55,050.00
Disclosure

SEC source: 0001548312-26-000038 · wk-form4_1782771718.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,125,714

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,097,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 25, 2026 Filed Jun 29, 2026 22:22 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 5,000 $11.01 $55,050.00
Disclosure

SEC source: 0001548312-26-000038 · wk-form4_1782771718.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,120,714

F1 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,092,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 22, 2026 Filed Jun 23, 2026 21:51 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 4,766 $11.16 $53,188.56
Disclosure

SEC source: 0001548312-26-000035 · wk-form4_1782251457.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,115,714

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,087,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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June 18, 2026 Filed Jun 23, 2026 21:51 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 234 $11.01 $2,576.34
Disclosure

SEC source: 0001548312-26-000035 · wk-form4_1782251457.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,110,948

F1 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,083,073 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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June 16, 2026 Filed Jun 17, 2026 20:31 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 4,994 $11.21 $55,982.74
Disclosure

SEC source: 0001548312-26-000033 · wk-form4_1781728293.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,110,714

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,082,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 15, 2026 Filed Jun 17, 2026 20:31 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 6 $11.01 $66.06
Disclosure

SEC source: 0001548312-26-000033 · wk-form4_1781728293.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,105,720

F1 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,077,845 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 12, 2026 Filed Jun 15, 2026 20:10 UTC PurchaseCommon Stock 500 $11.23 $5,615.00
Disclosure

SEC source: 0002029470-26-000012 · wk-form4_1781554252.xml · nonDerivative · entry 1

Fruhbeis Todd Michael · CIK 0002029470 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,178

F1 · balance_after: 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.

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June 10, 2026 Filed Jun 13, 2026 00:57 UTC PurchaseSeries A Preferred Stock 300 $9.81 $2,943.00
Disclosure

SEC source: 0002029470-26-000010 · wk-form4_1781312238.xml · nonDerivative · entry 1

Fruhbeis Todd Michael · CIK 0002029470 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,411

F1 · price: 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.

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June 10, 2026 Filed Jun 13, 2026 00:16 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 1,884 $10.89 $20,516.76
Disclosure

SEC source: 0001548312-26-000031 · wk-form4_1781309764.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,105,714

F1 · price: 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 $10.88 to $11.01 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.

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated; (ii) 6,750 RSUs; and (iii) 1,077,839 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 09, 2026 Filed Jun 9, 2026 20:50 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 2,849 $11.23 $31,994.27
Disclosure

SEC source: 0001548312-26-000029 · wk-form4_1781038217.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,103,830

F2 · price: 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 $11.14 to $11.51 on June 8, 2026 and $11.01 to $11.26 on June 9, 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.

F4 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,075,955 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 08, 2026 Filed Jun 9, 2026 20:50 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 10,000 $11.45 $114,500.00
Disclosure

SEC source: 0001548312-26-000029 · wk-form4_1781038217.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,100,981

F2 · price: 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 $11.14 to $11.51 on June 8, 2026 and $11.01 to $11.26 on June 9, 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.

F3 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,073,106 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 05, 2026 Filed Jun 9, 2026 20:13 UTC PurchaseCommon Stock 686 $11.66 $7,998.76
Disclosure

SEC source: 0002029196-26-000009 · wk-form4_1781036018.xml · nonDerivative · entry 1

Palmer Jennifer · CIK 0002029196 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 686

F1 · price: 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 $11.55 to $11.66 on June 5, 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.

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June 05, 2026 Filed Jun 9, 2026 20:50 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 3,443 $11.51 $39,628.93
Disclosure

SEC source: 0001548312-26-000029 · wk-form4_1781038217.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,090,981

F1 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,063,106 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 05, 2026 Filed Jun 9, 2026 20:07 UTC PurchaseCommon Stock 500 $11.46 $5,730.00
Disclosure

SEC source: 0001580399-26-000004 · wk-form4_1781035666.xml · nonDerivative · entry 1

Pearse Robert G. · CIK 0001580399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,218

F1 · price: 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 $11.32 to $11.50 on June 5, 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.

F2 · balance_after: Includes 12,516 Restricted Stock Units and 1,497 deferred shares 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 and deferred share 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.

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June 05, 2026 Filed Jun 15, 2026 20:10 UTC
Drake Mimi KDirector
PurchaseCommon Stock 1,000 $11.65 $11,650.00
Disclosure

SEC source: 0001767481-26-000004 · wk-form4_1781554201.xml · nonDerivative · entry 1

Drake Mimi K · CIK 0001767481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,834

F1 · balance_after: Includes 12,516 Restricted Stock Units and 1,674 deferred shares 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 and deferred share 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.

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June 04, 2026 Filed Jun 4, 2026 21:43 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 1,430 $11.51 $16,459.30
Disclosure

SEC source: 0001548312-26-000027 · wk-form4_1780609431.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,087,538

F4 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,059,663 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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June 03, 2026 Filed Jun 4, 2026 21:43 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 101 $11.51 $1,162.51
Disclosure

SEC source: 0001548312-26-000027 · wk-form4_1780609431.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,086,108

F3 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,058,233 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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June 02, 2026 Filed Jun 4, 2026 21:43 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 4,881 $11.61 $56,668.41
Disclosure

SEC source: 0001548312-26-000027 · wk-form4_1780609431.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,086,007

F1 · price: 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 $11.41 to $11.61 on June 2, 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.

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,058,132 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 01, 2026 Filed Jun 1, 2026 21:46 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 1,482 $11.59 $17,176.38
Disclosure

SEC source: 0001548312-26-000023 · wk-form4_1780350414.xml · nonDerivative · entry 4

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,081,126

F1 · price: 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 $11.76 to $11.81 on May 28, 2026, $11.42 to $11.61 on May 29, 2026, and $11.40 to $11.61 on June 1, 2026, 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.

F4 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,053,251 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 22:06 UTC PurchaseCommon Stock 700 $11.72 $8,204.00
Disclosure

SEC source: 0002029470-26-000008 · wk-form4_1780524399.xml · nonDerivative · entry 1

Fruhbeis Todd Michael · CIK 0002029470 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,678

F1 · price: 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.

F2 · balance_after: 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.

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May 29, 2026 Filed Jun 1, 2026 21:46 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 3,663 $11.61 $42,527.43
Disclosure

SEC source: 0001548312-26-000023 · wk-form4_1780350414.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,079,644

F1 · price: 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 $11.76 to $11.81 on May 28, 2026, $11.42 to $11.61 on May 29, 2026, and $11.40 to $11.61 on June 1, 2026, 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.

F3 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,051,769 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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May 29, 2026 Filed Jun 1, 2026 20:06 UTC
Diamond Matthew KChief Accounting Officer
Tax withholdingCommon Stock 763 $11.62 $8,866.06
Disclosure

SEC source: 0001779155-26-000004 · wk-form4_1780344408.xml · nonDerivative · entry 1

Diamond Matthew K · CIK 0001779155 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,175

F1 · shares: This number represents shares of Star Equity Holdings, Inc. Common Stock withheld to satisfy the tax withholding obligation due upon vesting of performance-based restricted stock units.

F2 · balance_after: Includes (i) 4,813 Share Units credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan ("2009 Plan"); and (ii) 15,362 shares of common stock. Each Share Unit is the economic equivalent of one share of Common Stock. Share Units may be settled pursuant to the 2009 Plan by the issuance of Common Stock, the payment of cash, or a combination of both.

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May 29, 2026 Filed Jun 2, 2026 23:00 UTC PurchaseCommon Stock 1,000 $11.60 $11,600.00
Disclosure

SEC source: 0002029214-26-000009 · wk-form4_1780441253.xml · nonDerivative · entry 1

Parks Louis A. · CIK 0002029214 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,813

F1 · balance_after: 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.

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May 28, 2026 Filed Jun 1, 2026 21:46 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 11,201 $11.81 $132,283.81
Disclosure

SEC source: 0001548312-26-000023 · wk-form4_1780350414.xml · nonDerivative · entry 2

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,075,981

F1 · price: 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 $11.76 to $11.81 on May 28, 2026, $11.42 to $11.61 on May 29, 2026, and $11.40 to $11.61 on June 1, 2026, 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.

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,048,106 shares of common stock. Excludes 2,000 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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May 28, 2026 Filed Jun 1, 2026 21:46 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock 310 $11.69 $3,623.90
Disclosure

SEC source: 0001548312-26-000023 · wk-form4_1780350414.xml · nonDerivative · entry 1

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Contributory 401k

Disclosed balance after: 810

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May 27, 2026 Filed May 27, 2026 22:55 UTC
Eberwein Jeffrey E.Director · Chief Executive Officer · 10% owner
PurchaseCommon Stock. 2,288 $11.76 $26,906.88
Disclosure

SEC source: 0001548312-26-000021 · wk-form4_1779922548.xml · nonDerivative · entry 3

Eberwein Jeffrey E. · CIK 0001548312 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,064,780

F1 · price: 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 $10.90 to $11.26 on May 22, 2026, $11.40 to $11.51 on May 26, 2026, and $11.51 to $11.76 on May 27, 2026, 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.

F2 · balance_after: Includes (i) 21,125 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,036,905 shares of common stock. Excludes 1,690 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU represents the right to receive, at settlement, one share of common stock.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.