FBLG

SEC source: 0001493152-26-042794 · ownership.xml · derivative · entry 2

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 298,508

Underlying: Common Stock · 298,508 shares

Expires 2031-09-15

F1 · kind: On September 15, 2026, the reporting person entered into a securities purchase agreement with FibroBiologics, Inc. (the "Company") to purchase 298,508 shares of the Company's common stock, par value $0.00001 per share (the "Common Stock"), and accompanying warrants to purchase up to 298,508 shares of Common Stock (the "Warrants"), in a private placement (the "Offering").

F2 · price: Each share of Common Stock and accompanying Warrant were issued at a combined purchase price of $1.675.

F3 · derivative.exercise_date: The warrants are exercisable at any time until they expire.

SEC source: 0001493152-26-042794 · ownership.xml · nonDerivative · entry 1

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,571

F1 · kind: On September 15, 2026, the reporting person entered into a securities purchase agreement with FibroBiologics, Inc. (the "Company") to purchase 298,508 shares of the Company's common stock, par value $0.00001 per share (the "Common Stock"), and accompanying warrants to purchase up to 298,508 shares of Common Stock (the "Warrants"), in a private placement (the "Offering").

F2 · price: Each share of Common Stock and accompanying Warrant were issued at a combined purchase price of $1.675.

SEC source: 0001493152-26-029851 · ownership.xml · derivative · entry 1

Hoffman Robert E. · CIK 0001166288 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,803

Underlying: Common Stock · 30,803 shares

Expires 2036-06-22

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-26-029848 · ownership.xml · derivative · entry 1

Niklas Victoria Ninon Olivia · CIK 0002012250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,803

Underlying: Common Stock · 30,803 shares

Expires 2036-06-22

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-26-029849 · ownership.xml · derivative · entry 1

Link Matthew · CIK 0001565950 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,803

Underlying: Common Stock · 30,803 shares

Expires 2036-06-22

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-26-029850 · ownership.xml · derivative · entry 1

Cilento Richard C. Jr. · CIK 0002010661 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,803

Underlying: Common Stock · 30,803 shares

Expires 2036-06-22

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-26-021172 · ownership.xml · derivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,607

Underlying: Common Stock · 61,607 shares

Expires 2036-05-04

F1 · derivative.exercise_date: On May 4, 2026, the reporting person was granted an option to purchase 61,607 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-26-021173 · ownership.xml · derivative · entry 1

Davis Jason · CIK 0001443533 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,607

Underlying: Common Stock · 61,607 shares

Expires 2036-05-04

F1 · derivative.exercise_date: On May 4, 2026, the reporting person was granted an option to purchase 61,607 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-26-021175 · ownership.xml · derivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,410

Underlying: Common Stock · 92,410 shares

Expires 2036-05-04

F1 · derivative.exercise_date: On May 4, 2026, the reporting person was granted an option to purchase 92,410 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-26-021174 · ownership.xml · derivative · entry 1

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,607

Underlying: Common Stock · 61,607 shares

Expires 2036-05-04

F1 · derivative.exercise_date: On May 4, 2026, the reporting person was granted an option to purchase 61,607 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods

SEC source: 0001493152-26-008903 · ownership.xml · nonDerivative · entry 3

O'HEERON PETE · CIK 0001569334 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,958,147

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3210 to $0.4166 on March 2, 2026, $0.3885 to $0.4302 on March 3, 2026, and $0.3730 to $0.3820 on March 4, 2026. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-26-008933 · ownership.xml · nonDerivative · entry 1

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,250

SEC source: 0001493152-26-008903 · ownership.xml · nonDerivative · entry 2

O'HEERON PETE · CIK 0001569334 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,942,275

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3210 to $0.4166 on March 2, 2026, $0.3885 to $0.4302 on March 3, 2026, and $0.3730 to $0.3820 on March 4, 2026. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-26-008646 · ownership.xml · nonDerivative · entry 1

Davis Jason · CIK 0001443533 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3968 to $0.4200 on March 2, 2026. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-26-008903 · ownership.xml · nonDerivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,924,075

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3210 to $0.4166 on March 2, 2026, $0.3885 to $0.4302 on March 3, 2026, and $0.3730 to $0.3820 on March 4, 2026. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-26-008469 · ownership.xml · nonDerivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3221 to $0.3268 on February 27, 2026. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-25-027363 · ownership.xml · nonDerivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3333 to $0.3504 on December 11, 2025. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001641172-25-014934 · ownership.xml · derivative · entry 1

Hoffman Robert E. · CIK 0001166288 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires 2025-06-11

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001641172-25-014941 · ownership.xml · derivative · entry 1

Niklas Victoria Ninon Olivia · CIK 0002012250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires 2025-06-11

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001641172-25-014931 · ownership.xml · derivative · entry 1

Coen Stacy Ann · CIK 0001814150 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires 2025-06-11

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001641172-25-014939 · ownership.xml · derivative · entry 1

Link Matthew · CIK 0001565950 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires 2025-06-11

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001641172-25-014927 · ownership.xml · derivative · entry 1

Cilento Richard C. Jr. · CIK 0002010661 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires 2035-06-11

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001641172-25-014512 · ownership.xml · derivative · entry 1

Davis Jason · CIK 0001443533 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 450,000

Underlying: Common Stock · 450,000 shares

Expires 2035-06-08

F1 · derivative.exercise_date: On June 9, 2025, the reporting person was granted an option to purchase 450,000 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001641172-25-012539 · ownership.xml · nonDerivative · entry 1

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,250

SEC source: 0001641172-25-001188 · ownership.xml · derivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,000

Underlying: Common Stock · 189,000 shares

Expires 2035-03-25

F1 · derivative.exercise_date: On March 26, 2025, the reporting person was granted an option to purchase 189,000 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001641172-25-001189 · ownership.xml · derivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 453,000

Underlying: Common Stock · 453,000 shares

Expires 2035-03-25

F1 · derivative.exercise_date: On March 26, 2025, the reporting person was granted an option to purchase 453,000 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001641172-25-001187 · ownership.xml · derivative · entry 1

Khoja Hamid · CIK 0002010662 · CHIEF SCIENTIFIC OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,000

Underlying: Common Stock · 189,000 shares

Expires 2035-03-25

F1 · derivative.exercise_date: On March 26, 2025, the reporting person was granted an option to purchase 189,000 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one-year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-24-052488 · ownership.xml · derivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,200

Underlying: Common Stock · 176,200 shares

Expires 2034-12-26

F1 · derivative.exercise_date: On December 27, 2024, the reporting person was granted an option to purchase 176,200 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-24-052493 · ownership.xml · derivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 406,339

Underlying: Common Stock · 406,339 shares

Expires 2034-12-26

F1 · derivative.exercise_date: On December 27, 2024, the reporting person was granted an option to purchase 406,339 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-24-052490 · ownership.xml · derivative · entry 1

Khoja Hamid · CIK 0002010662 · CHIEF SCIENTIFIC OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,200

Underlying: Common Stock · 176,200 shares

Expires 2034-12-26

F1 · derivative.exercise_date: On December 27, 2024, the reporting person was granted an option to purchase 176,200 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.

SEC source: 0001493152-24-049341 · ownership.xml · nonDerivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,906,647

SEC source: 0001493152-24-048916 · ownership.xml · nonDerivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,006,647

SEC source: 0001493152-24-034068 · ownership.xml · derivative · entry 1

Hoffman Robert E. · CIK 0001166288 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-08-26

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-24-034072 · ownership.xml · derivative · entry 1

Niklas Victoria Ninon Olivia · CIK 0002012250 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-08-26

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-24-034066 · ownership.xml · derivative · entry 1

Coen Stacy Ann · CIK 0001814150 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-08-26

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-24-034070 · ownership.xml · derivative · entry 1

Link Matthew · CIK 0001565950 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-08-26

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-24-034064 · ownership.xml · derivative · entry 1

Cilento Richard C. Jr. · CIK 0002010661 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2034-08-26

F1 · derivative.exercise_date: The options will vest in full upon the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual meeting.

SEC source: 0001493152-24-031439 · ownership.xml · nonDerivative · entry 1

O'HEERON PETE · CIK 0001569334 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,056,647

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiples transactions ranging from $1.82 to $2.017 on August 12, 2024. The reporting person will provide upon request to the SEC, the issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001493152-24-031438 · ownership.xml · nonDerivative · entry 1

Khoja Hamid · CIK 0002010662 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,250

SEC source: 0001493152-24-009398 · ownership.xml · derivative · entry 1

GARCIA RUBEN A · CIK 0002013617 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2034-02-28

F1 · derivative.exercise_date: On March 1, 2024, the reporting person was granted an option to purchase 180,000 shares of common stock. One fourth (1/4th) of the option shares shall vest on the one year anniversary of the grant date, and the remaining balance of the option shares shall vest in 36 equal consecutive monthly installments thereafter until fully vested so long as the reporting person remains in continuous service through such applicable vesting periods.