Pete O'Heeron - 02 Mar 2026 Form 4 Insider Report for FibroBiologics, Inc. (FBLG)

Role: CHIEF EXECUTIVE OFFICER, Director
Signature: /s/ Ruben A. Garcia, by Power of Attorney
Issuer symbol: FBLG
Transactions as of: 02 Mar 2026
Net transactions value: +$19,531
Form type: 4
Filing time: 04 Mar 2026, 17:50:10 UTC
Previous filing: 22 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
O'HEERON PETE	CHIEF EXECUTIVE OFFICER, Director	C/O FIBROBIOLOGICS, INC., 455 E. MEDICAL CENTER BLVD., SUITE 300, HOUSTON	/s/ Ruben A. Garcia, by Power of Attorney	04 Mar 2026	0001569334

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FBLG	Common Stock	Purchase	$6,152	+17,428	+0.3%	$0.3530	5,924,075	02 Mar 2026	Direct	F1
transaction	FBLG	Common Stock	Purchase	$7,373	+18,200	+0.31%	$0.4051	5,942,275	03 Mar 2026	Direct	F1
transaction	FBLG	Common Stock	Purchase	$6,006	+15,872	+0.27%	$0.3784	5,958,147	04 Mar 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.

Content

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.