Exhibit 3.1

AMENDED AND RESTATED
CERTIFICATE OF INCORPORATION
OF
FIBROBIOLOGICS, INC.

(Pursuant to Sections 242 and 245 of the
General Corporation Law of the State of Delaware)

FibroBiologics, Inc., a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the State of Delaware (the “DGCL”),

DOES HEREBY CERTIFY:

1. That the name of this corporation is FibroBiologics, Inc., and that this corporation was originally formed under the laws of the State of Texas as a limited liability company on April 8, 2021 under the name FibroBiologics LLC and converted to a corporation pursuant to the DGCL on December 14, 2021 under the name Fibrobiologics, Inc. The original certificate of incorporation of this corporation was filed with the Secretary of State of the State of Delaware on December 14, 2021. The certificate of incorporation was first amended and restated on December 22, 2022 and further amended and restated on January 20, 2023, on April 12, 2023, on October 30, 2023, and on October 31, 2023 (as so amended and restated, the “Certificate of Incorporation”).

2. That the Board of Directors of this corporation duly adopted resolutions proposing to amend and restate the Certificate of Incorporation, declaring said amendment and restatement to be advisable and in the best interests of this corporation and its stockholders, and authorizing the appropriate officers of this corporation to solicit the consent of the stockholders therefor, which resolution setting forth the proposed amendment and restatement is as follows:

RESOLVED, that the certificate of incorporation of this corporation be amended and restated in its entirety to read as follows:

FIRST: The name of the corporation is FibroBiologics, Inc. (hereinafter called the “Corporation”).

SECOND: The address of the registered office of the Corporation in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The name of the registered agent of the Corporation in the State of Delaware at such address is The Corporation Trust Company.

THIRD: The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized and incorporated under the General Corporation Law of the State of Delaware or any applicable successor act thereto, as the same may be amended from time to time (the “DGCL”).

FOURTH: The total number of shares of all classes of capital stock that the Corporation is authorized to issue is 110,000,000 shares, consisting of (i) 100,000,000 shares of common stock, par value $0.00001 per share (“Common Stock”), and (ii) 10,000,000 shares of preferred stock, par value $0.00001 per share (“Preferred Stock”), of which 2,500 shares are designated as Series C Preferred Stock (“Series C Preferred Stock”).

Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of Common Stock and Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority in voting power of the capital stock of the Corporation entitled to vote thereon irrespective of the provisions of Section 242(b)(2) of the DGCL, and no vote of the holders of Common Stock or Preferred Stock voting separately as a class shall be required therefor, except as required by applicable law.

A. Common Stock. The powers, preferences and relative participating, optional or other special rights, and the qualifications, limitations and restrictions of the Common Stock are as follows:

1. Ranking. The voting, dividend and liquidation rights of the holders of Common Stock are subject to and qualified by the rights of the holders of Preferred Stock of any series as may be designated by the Board of Directors of the Corporation (the “Board”) upon any issuance of Preferred Stock of any series.

2. Voting. Subject to the rights of the holders of Preferred Stock and except as otherwise provided by applicable law, the holders of outstanding shares of Common Stock shall have the right to vote for the election and removal of directors and for all other purposes. Notwithstanding any other provision of this Certificate of Incorporation to the contrary, the holders of Common Stock shall not be entitled to vote on any amendment to this Certificate of Incorporation (including any Preferred Stock Designation) that relates solely to the terms of one or more outstanding series of Preferred Stock if the holders of such affected series are entitled, either separately or together as a class with the holders of one or more other such series, to vote thereon pursuant to this Certificate of Incorporation (including any Preferred Stock Designation) or the DGCL.

3. Dividends. Subject to the rights of the holders of Preferred Stock, holders of shares of Common Stock shall be entitled to receive such dividends and distributions and other distributions in cash, stock or property of the Corporation when, as and if declared thereon by the Board from time to time out of assets or funds of the Corporation legally available therefor.

4. Liquidation. Subject to the rights of the holders of Preferred Stock, shares of Common Stock shall be entitled to receive the assets and funds of the Corporation available for distribution in the event of any liquidation, dissolution or winding up of the affairs of the Corporation, whether voluntary or involuntary. A liquidation, dissolution or winding up of the affairs of the Corporation, as such terms are used in this Section Fourth A.4, shall not be deemed to be occasioned by or to include any consolidation or merger of the Corporation with or into any other person or a sale, lease, exchange or conveyance of all or a part of its assets.

B. Preferred Stock. Additional shares of Preferred Stock may be issued from time to time in one or more series. The Board is hereby authorized to provide by resolution or resolutions from time to time for the issuance, out of the unissued shares of Preferred Stock, of one or more series of Preferred Stock, without stockholder approval, by filing a certificate pursuant to the applicable law of the State of Delaware (the “Preferred Stock Designation”), setting forth such resolution and, with respect to each such series, establishing the number of shares to be included in such series, and fixing the voting powers, full or limited, or no voting power of the shares of such series, and the designation, preferences and relative, participating, optional or other special rights, if any, of the shares of each such series and any qualifications, limitations or restrictions thereof. The powers, designation, preferences and relative, participating, optional and other special rights of each series of Preferred Stock, and the qualifications, limitations and restrictions thereof, if any, may differ from those of any and all other series at any time outstanding. The authority of the Board with respect to each series of Preferred Stock shall include, but not be limited to, the determination of the following:

1. the designation of the series, which may be by distinguishing number, letter or title,

2. the number of shares of the series, which number the Board may thereafter (except where otherwise provided in the Preferred Stock Designation) increase or decrease (but not below the number of shares thereof then outstanding),

3. the amounts or rates at which dividends will be payable on, and the preferences, if any, of shares of the series in respect of dividends, and whether such dividends, if any, shall be cumulative or noncumulative,

4. the dates on which dividends, if any, shall be payable,

5. the redemption rights and price or prices, if any, for shares of the series,

6. the terms and amount of any sinking fund, if any, provided for the purchase or redemption of shares of the series,

7. the amounts payable on, and the preferences, if any, of shares of the series in the event of any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Corporation,

8. whether the shares of the series shall be convertible into or exchangeable for, shares of any other class or series, or any other security, of the Corporation or any other corporation, and, if so, the specification of such other class or series or such other security, the conversion or exchange price or prices or rate or rates, any adjustments thereof, the date or dates at which such shares shall be convertible or exchangeable and all other terms and conditions upon which such conversion or exchange may be made,

9. restrictions on the issuance of shares of the same series or any other class or series,

10. the voting rights, if any, of the holders of shares of the series generally or upon specified events, and

11. any other powers, preferences and relative, participating, optional or other special rights of each series of Preferred Stock, and any qualifications, limitations or restrictions of such shares,

all as may be determined from time to time by the Board and stated in the resolution or resolutions providing for the issuance of such Preferred Stock.

Without limiting the generality of the foregoing, the resolutions providing for issuance of any series of Preferred Stock may provide that such series shall be superior or rank equally or be junior to any other series of Preferred Stock to the extent permitted by law.

C. Series C Preferred Stock. The preferences, limitations, and rights of the Series C Preferred are as follows:

1. Ranking. The Series C Preferred Stock shall rank senior to the Common Stock upon liquidation, dissolution, winding-up or otherwise.

2. Voting. Each share of Series C Preferred Stock shall be entitled to thirteen thousand (13,000) votes. Subject to the rights of the holders of other classes or series of Preferred Stock and except as otherwise provided by applicable law, the holders of Series C Preferred Stock shall have the right to vote on any matter to be voted on by the stockholders of the Corporation, in each case, voting together with the holders of Common Stock as a single class. Each holder of shares of Series C Preferred Stock shall be entitled to receive the same prior notice of any meeting of stockholders as provided to the holders of Common Stock in accordance with the Bylaws of the Corporation (the “Bylaws”), as well as prior notice of all stockholder actions to be taken by legally available means in lieu of a meeting, and shall vote with the holders of the Common Stock upon any matter submitted to a vote of stockholders, except those matters, if any, required by law to be submitted to a class vote of the holders of Series C Preferred Stock.

3. Dividends. Holders of Series C Preferred Stock shall not be entitled to any dividend, whether payable in cash, stock or property of the Corporation.

4. Liquidation. Subject to the superior rights of other classes or series of Preferred Stock, in the event of any liquidation, dissolution or winding up of the Corporation, either voluntary or involuntary, the holders of the Series C Preferred Stock shall be entitled to receive, prior and in preference to any distribution in such liquidation, dissolution or winding up of any of the assets of the Corporation to the holders of Common Stock by reason of their ownership thereof, an amount per share equal to one times the Series C Issue Price. The “Series C Issue Price” shall mean, with respect to the Series C Preferred Stock, $18.00 per share, subject to appropriate adjustment in the event of any stock split, combination or other similar recapitalization with respect to the applicable Preferred Stock.

5. Optional Conversion. The Series C Preferred Stock shall be convertible at any time as follows:

(a). At the option of the holder, a share of Series C Preferred Stock may be converted into one share of Common Stock; and

(b). Upon the election of the holders of a majority of the then outstanding shares of Series C Preferred Stock, all outstanding shares of Series C Preferred Stock may be converted into an equal number of shares of Common Stock.

6. Mandatory Conversion Upon Transfer. Each share of Series C Preferred Stock shall automatically convert, without the payment of additional consideration by or to the holder thereof, into one fully paid and non-assessable share of Common Stock, upon any transfer of any share of Series C Preferred Stock, whether or not for value.

7. Effect of Conversion. Any shares of Series C Preferred Stock which are converted as provided in Section Fourth C.5 and Section Fourth C.6, shall no longer be deemed to be outstanding and all rights with respect to such shares shall immediately cease and terminate at the time of such conversion, except only the right of the holders thereof to receive shares of Common Stock in exchange therefor as provided herein. Any shares of Series C Preferred Stock so converted shall be retired and cancelled and may not be reissued as shares of such series, and the Corporation may thereafter take such appropriate action (without the need for stockholder action) as may be necessary to reduce the authorized number of shares of Series C Preferred Stock accordingly.

8. Adjustment for Stock Splits and Combinations. For as long as the Series C Preferred Stock remain outstanding, the aggregate number of shares of Series C Preferred Stock then outstanding, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a subdivision or combination of the Common Stock or other similar recapitalization, in each case effected without the receipt of consideration by the Corporation.

9. Reservation of Shares. The Corporation shall at all times when the Series C Preferred Stock shall be outstanding, reserve and keep available out of its authorized but unissued capital stock, for the purpose of effecting the conversion of the Series C Preferred Stock, such number of its duly authorized shares of Common Stock as shall from time to time be sufficient to effect the conversion of all outstanding Series C Preferred Stock; and if at any time the number of authorized but unissued shares of Common Stock shall not be sufficient to effect the conversion of all then outstanding shares of the Series C Preferred Stock, the Corporation shall take such corporate action as may be necessary to increase its authorized but unissued shares of Common Stock to such number of shares as shall be sufficient for such purposes, including, without limitation, engaging in best efforts to obtain the requisite stockholder approval of any necessary amendment to the Certificate of Incorporation.

FIFTH: This Article FIFTH is inserted for the management of the business and for the conduct of the affairs of the Corporation.

A. General Powers. The business and affairs of the Corporation shall be managed by or under the direction of the Board, except as otherwise provided by law.

B. Number of Directors; Election of Directors. Subject to the rights of holders of any series of Preferred Stock to elect directors, the number of directors of the Corporation shall be fixed from time to time solely by resolution of a majority of the Whole Board. For purposes of this Certificate of Incorporation, the term “Whole Board” will mean the total number of authorized directors, whether or not there exist any vacancies in previously authorized directorships. No decrease in the number of directors constituting the Board shall shorten the term of any incumbent director.

C. Classes of Directors.

1. Subject to the rights of holders of any series of Preferred Stock to elect directors, the Board shall be divided into three classes, designated Class I, Class II and Class III; and

2. Each class shall consist, as nearly as may be possible, of one third of the total number of directors constituting the entire Board.

D. Terms of Office.

1. Subject to the rights of holders of any series of Preferred Stock to elect directors, each director shall serve for a term ending on the date of the third annual meeting of stockholders following the annual meeting of stockholders at which such director was elected; provided that each director initially assigned to Class II shall serve for a term expiring at the Corporation’s annual meeting of stockholders held in 2025; and each director initially assigned to Class III shall serve for a term expiring at the Corporation’s annual meeting of stockholders held in 2026; provided further, that the term of each director shall continue until the election and qualification of his or her successor and be subject to his or her earlier death, disqualification, resignation or removal.

E. Vacancies. Subject to the rights of holders of any series of Preferred Stock, any newly created directorship that results from an increase in the number of directors or any vacancy on the Board that results from the death, disability, resignation, disqualification or removal of any director or from any other cause shall be filled solely by the affirmative vote of a majority of the total number of directors then in office, even if less than a quorum, or by a sole remaining director and shall not be filled by the stockholders. Any director elected to fill a vacancy not resulting from an increase in the number of directors shall hold office for the remaining term of his or her predecessor.

F. Removal. Any director or the entire Board may be removed from office at any time, but only for cause and then only by the affirmative vote of the holders of at least 66⅔% in voting power of the stock of the Corporation entitled to vote thereon.

G. Committees. Pursuant to the Bylaws, the Board may establish one or more committees to which may be delegated any or all of the powers and duties of the Board to the full extent permitted by law.

H. Stockholder Nominations and Introduction of Business. Advance notice of stockholder nominations for election of directors and other business to be brought by stockholders before a meeting of stockholders shall be given in the manner provided by the Bylaws.

SIXTH: Unless and except to the extent that the Bylaws shall so require, the election of directors of the Corporation need not be by written ballot.

SEVENTH: To the fullest extent permitted by the DGCL as it presently exists or may hereafter be amended, no director or officer of the Corporation shall be personally liable to the Corporation or to its stockholders for monetary damages for any breach of fiduciary duty as a director or an officer. No amendment to, modification of, or repeal of this Article SEVENTH shall apply to or have any effect on the liability or alleged liability of any director or officer of the Corporation for or with respect to any acts or omissions of such director or officer occurring prior to such amendment. If the DGCL is hereafter amended to authorize corporate action further limiting or eliminating the personal liability of directors or officers, then the liability of the directors or officers of the Corporation shall be limited or eliminated to the fullest extent permitted by the DGCL, as so amended from time to time.

EIGHTH: The Corporation shall indemnify, and advance expenses to, to the fullest extent permitted by law, any person who was or is a party to or is threatened to be made a party to any action, suit or proceeding, whether civil, criminal, administrative or investigative (a “Proceeding”), by reason of the fact that the person is or was a director or officer of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise. Notwithstanding the preceding sentence, the Corporation shall be required to indemnify a person in connection with a Proceeding (or part thereof) commenced by such person only if the commencement of such Proceeding (or part thereof) by the person was authorized in the specific case by the Board.

NINTH: Subject to the terms of any series of Preferred Stock, any action required or permitted to be taken by the stockholders of the Corporation must be effected at an annual or special meeting of the stockholders called in accordance with the Bylaws and this Certificate of Incorporation and may not be effected by written consent in lieu of a meeting.

TENTH: Special meetings of stockholders for any purpose or purposes may be called at any time by the majority of the Whole Board, the Chairman of the Board or the Chief Executive Officer of the Corporation, and may not be called by another other person or persons. Business transacted at any special meeting of stockholders shall be limited to matters relating to the purpose or purposes stated in the notice of meeting.

ELEVENTH: If any provision or provisions of this Certificate of Incorporation shall be held to be invalid, illegal or unenforceable as applied to any circumstance for any reason whatsoever: (i) the validity, legality and enforceability of such provisions in any other circumstance and of the remaining provisions of this Certificate of Incorporation (including, without limitation, each portion of any paragraph of this Certificate of Incorporation containing any such provision held to be invalid, illegal or unenforceable that is not itself held to be invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and (ii) to the fullest extent possible, the provisions of this Certificate of Incorporation (including, without limitation, each such portion of any paragraph of this Certificate of Incorporation containing any such provision held to be invalid, illegal or unenforceable) shall be construed so as to permit the Corporation to protect its directors and officers from personal liability in respect of their good faith service or for the benefit of the Corporation to the fullest extent permitted by law.

The Corporation reserves the right at any time from time to time to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, and any other provisions authorized by the DGCL may be added or inserted, in the manner now or hereafter prescribed by law; and all rights, preferences and privileges of whatsoever nature conferred upon stockholders, directors or any other persons whomsoever by and pursuant to this Certificate of Incorporation in its present form or as hereafter amended are granted subject to the right reserved in this Article ELEVENTH. Notwithstanding any other provision of this Certificate of Incorporation or any provision of law that might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the holders of any series of Preferred Stock required by law, by this Certificate of Incorporation or by any Preferred Stock Designation, the affirmative vote of the holders of a majority in voting power of the stock of the Corporation entitled to vote thereon shall be required to amend, alter, change or repeal any provision of this Certificate of Incorporation, or to adopt any new provision of this Certificate of Incorporation; provided, however, that the affirmative vote of the holders of at least 66⅔% in voting power of the stock of the Corporation entitled to vote thereon shall be required to amend, alter, change or repeal, or adopt any provision inconsistent with, any of Article FIFTH, Article SEVENTH, Article EIGHTH, Article NINTH, Article TENTH, Article TWELFTH, Article THIRTEENTH, and this sentence of this Certificate of Incorporation, or in each case, the definition of any capitalized terms used therein or any successor provision (including, without limitation, any such article or section as renumbered as a result of any amendment, alteration, change, repeal or adoption of any other provision of this Certificate of Incorporation). Any amendment, repeal or modification of any of Article SEVENTH, Article EIGHTH, and this sentence shall not adversely affect any right or protection of any person existing thereunder with respect to any act or omission occurring prior to such repeal or modification.

TWELFTH: In furtherance and not in limitation of the powers conferred upon it by law, the Board is expressly authorized and empowered to adopt, amend and repeal the Bylaws by the affirmative vote of a majority of the Whole Board. Notwithstanding any other provision of this Certificate of Incorporation or any provision of law that might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the holders of any series of Preferred Stock required by law, by this Certificate of Incorporation or by any Preferred Stock Designation, the Bylaws may also be amended, altered or repealed and new Bylaws may be adopted by the affirmative vote of the holders of at least 66⅔% in voting power of the stock of the Corporation entitled to vote thereon.

THIRTEENTH:

A. Forum Selection. Unless the Corporation consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware (or, if the Court of Chancery does not have jurisdiction, the federal district court for the District of Delaware) shall, to the fullest extent permitted by law, be the sole and exclusive forum for (i) any derivative action or proceeding brought on behalf of the Corporation, (ii) any action asserting a claim of breach of a fiduciary duty owed by any director, officer or other employee of the Corporation to the Corporation or the Corporation’s stockholders, (iii) any action arising pursuant to any provision of the DGCL or this Certificate of Incorporation or the Bylaws (as either may be amended from time to time), or (iv) any action asserting a claim governed by the internal affairs doctrine. Unless the Corporation consents in writing to the selection of an alternative forum, to the fullest extent permitted by law, the federal district courts of the United States of America shall be the exclusive forum for the resolution of any complaint asserting a cause or causes of action arising under the Securities Act of 1933, including all causes of action asserted against any defendant to such complaint. Nothing in this Article THIRTEENTH shall be deemed to preclude a stockholder of the Corporation who asserts claims under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) from bringing such claims in federal court, to the extent that the Exchange Act confers exclusive federal jurisdiction over such claims, subject to applicable law. Any person or entity purchasing or otherwise acquiring or holding any interest in shares of capital stock of the Corporation shall be deemed to have notice of and consented to the provisions of this Article THIRTEENTH.

B. Personal Jurisdiction. If any action the subject matter of which is within the scope of Section Thirteenth A immediately above is filed in a court other than the applicable court specified in Section Thirteenth A immediately above (a “Foreign Action”) in the name of any stockholder, such stockholder shall be deemed to have consented to (i) the personal jurisdiction of the applicable state and/or federal courts specified in Section Thirteenth A immediately above in connection with any action brought in any such court to enforce Section Thirteenth A immediately above (an “FSC Enforcement Action”) and (ii) having service of process made upon such stockholder in any such FSC Enforcement Action by service upon such stockholder’s counsel in the Foreign Action as agent for such stockholder.

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3. That the foregoing amendment and restatement was approved by the holders of the requisite number of shares of this corporation in accordance with Section 242 of the DGCL.

4. That this Amended and Restated Certificate of Incorporation, which restates and integrates and further amends the provisions of this corporation’s Certificate of Incorporation, has been duly adopted in accordance with Sections 242 and 245 of the DGCL.

IN WITNESS WHEREOF, this Amended and Restated Certificate of Incorporation has been executed by a duly authorized officer of this corporation on this 27th day of August, 2024.