Exhibit 5.1(b)

 

1271 Avenue of the Americas |New York, NY 10020

blankrome.com

May 2, 2024

The Board of Directors

Theriva Biologics, Inc.

9605 Medical Center Drive, Suite 270

Rockville, Maryland 20850

Re: Theriva Biologics, Inc.

Ladies and Gentlemen:

We have acted as counsel to Theriva Biologics, Inc., a Nevada corporation (the “Company”), in connection with its filing on the date hereof with the Securities and Exchange Commission (the “Commission”) of a registration statement on Form S-3 (as amended, the “Registration Statement”), including a base prospectus (the “Base Prospectus”), which provides that it will be supplemented by one or more prospectus supplements (each such prospectus supplement, together with the Base Prospectus, a “Prospectus”), under the Securities Act of 1933, as amended (the “Securities Act”). The Registration Statement relates to, among other things, the offer and sale from time to time, pursuant to Rule 415 of the General Rules and Regulations promulgated under the Securities Act, of up to $200,000,000 of any combination of the following securities of the Company (the “Registered Securities”): (i) shares of common stock, par value $0.001 per share (“Common Stock”), including shares of Common Stock as may from time to time be issued upon conversion or exchange of Preferred Stock or Debt Securities (each as defined below) or the exercise of Warrants or Units (each as defined below); (ii) shares of preferred stock, par value $0.001 per share (“Preferred Stock”), in one or more series; (iii) debt securities, in one or more series (the “Debt Securities”), which may be issued pursuant to an indenture to be dated on or about the date of the first issuance of the Debt Securities thereunder, by and between a trustee to be selected by the Company (the “Trustee”) and the Company, in the form filed as Exhibit 4.3 to the Registration Statement and one or more indentures supplemental thereto with respect to any particular series of Debt Securities (the “Indenture”); (iv) warrants for the purchase of Common Stock, Preferred Stock or Debt Securities (“Warrants”) pursuant to one or more warrant agreements (each, a “Warrant Agreement”) proposed to be entered into between the Company and one or more warrant agents to be named in the applicable Warrant Agreement (each, a “Warrant Agent”) in the forms to be filed as Exhibits 4.5, 4.6 and 4.7 to the Registration Statement; and (v) units consisting of one or more of the Company’s Common Stock, Preferred Stock, Debt Securities or Warrants, or any combination of those securities (“Units”), pursuant to one or more unit agreements (each, a “Unit Agreement”) proposed to be entered into between the Company and one or more unit agents to be named in the applicable Unit Agreement (each, a “Unit Agent”). The Common Stock, Preferred Stock, Debt Securities, Warrants and Units are collectively referred to herein as the “Securities.” This opinion is being furnished in accordance with the requirements of Item 601(b)(5) of Regulation S-K under the Securities Act.

We are also acting as counsel for the Company in connection with the Sales Agreement prospectus included in the Registration Statement (the “Sales Agreement ATM Prospectus”) relating to the issuance and sale of shares of Common Stock having an aggregate offering price of up to $1,235,303 (the “Sales Agreement Shares”) under that certain Sales Agreement dated as of February 9, 2021, as amended by Amendment No. 1 thereto, dated May 3, 2021, and Amendment No. 2 thereto, dated May 2, 2024, by and between A.G.P./Alliance Global Partners, as the sales agent, and the Company (the “Sales Agreement”).

 

Theriva Biologics, Inc.

May 2, 2024

Page 2

In rendering this opinion, we have assumed, without inquiry, (i) the authenticity of all documents submitted to us as originals; (ii) the conformity to the original documents of all documents submitted to us as facsimile, electronic, certified or photostatic copies, and the authenticity of the originals of such copies; (iii) the legal capacity of all natural persons and the genuineness of all signatures on the Registration Statement and all documents submitted to us; and (iv) that the books and records of the Company are maintained in accordance with proper corporate procedures.

In making our examination of executed documents or documents to be executed, we have assumed that the parties thereto had or will have the power, corporate or other, to enter into and perform all obligations thereunder and we have also assumed the due authorization by all requisite action, corporate or other, and execution and delivery by such parties of such documents and (except to the extent we have opined on such matters below) the validity and binding effect on such parties. In addition, we have assumed that (i) a purchase, underwriting or similar agreement with respect to any Registered Securities will have been duly authorized and validly executed and delivered by the Company and the other parties thereto; (ii) the Registration Statement and any amendments thereto will have become effective and comply with all applicable laws at the time the Registered Securities are offered or issued as contemplated by the Registration Statement and no stop order suspending its effectiveness will have been issued and remain in effect; (iii) all Registered Securities will be issued and sold in compliance with applicable federal and state securities laws and in the manner stated in the Registration Statement and the applicable prospectus supplement; (iv) a prospectus supplement or term sheet will have been prepared and filed with the Commission describing the Registered Securities offered thereby and will comply at all relevant times with all applicable laws; (v) the Company will have obtained any legally required consents, approvals, authorizations and other orders of the Commission and any other regulatory authorities necessary (x) to issue and sell the Registered Securities being offered, and (y) to execute and deliver the applicable purchase, underwriting or similar agreement, or other applicable operative document; (vi) any securities issuable upon conversion, exchange, redemption or exercise of any Registered Securities being offered will be duly authorized, created and, if appropriate, reserved for issuance upon such conversion, exchange, redemption or exercise and, with respect to shares of Common Stock or Preferred Stock offered, there will be sufficient shares of Common Stock or Preferred Stock, as applicable, authorized under the Company’s Articles of Incorporation, as amended (the “Articles of Incorporation”), and not otherwise reserved for issuance; (vii) at the time of issuance of the Registered Securities, the Company validly exists and is duly qualified and in good standing under the laws of its jurisdiction of incorporation, and has the necessary corporate power for such issuance; (viii) at the time of issuance of the Registered Securities, the Articles of Incorporation and then-operative by-laws, including the current Amended and Restated By-Laws (the “By-Laws”) of the Company are in full force and effect and have not been amended, restated, supplemented or otherwise altered, and there has been no authorization of any such amendment, restatement, supplement or other alteration, in either case since the date hereof; and (ix) the terms, execution and delivery of the Registered Securities (x) do not result in breaches of, or defaults under, agreements or instruments to which the Company is bound or violations of applicable statutes, rules, regulations or court or governmental orders, and (y) comply with any applicable requirement or restriction imposed by any court or governmental body having jurisdiction over the Company. As to any facts material to the opinions expressed herein that we have not independently established or verified, we have relied upon, and assumed the accuracy of, statements and representations of officers and other representatives of the Company and others.

 

Theriva Biologics, Inc.

May 2, 2024

Page 3

In connection with the Sales Agreement Shares, we have assumed (i) that each sale of Sales Agreement Shares will be duly authorized by the Board of Directors of the Company, a duly authorized committee thereof or a person or body pursuant to an authorization granted in accordance with the Nevada Revised Statutes, (ii) at the time of issuance of any Sales Agreement Shares, there shall be a sufficient number of duly authorized and unissued shares of Common Stock to accommodate the issuance of the Sales Agreement Shares, and (iii) that the price at which the Sales Agreement Shares are sold will equal or exceed the par value of the Common Stock. We express no opinion to the extent that future issuances of securities of the Company, anti-dilution adjustments to outstanding securities of the Company and/or other matters cause the number of shares of the Common Stock available for issuance under the Sales Agreement to exceed the number of shares of the Common Stock available for issuance by the Company.

Based upon the foregoing and subject to the limitations, qualifications, exceptions and assumptions stated herein, we are of the opinion that:

1. With respect to any series of Debt Securities offered by the Company (the “Offered Debt Securities”), when (i) the Indenture has been qualified under the Trust Indenture Act of 1939, as amended (the “TIA”); (ii) the terms of the Offered Debt Securities and of their issuance and sale have been duly established in conformity with the Indenture and any supplemental indenture relating to such Offered Debt Securities so as not to violate any applicable law, the Articles of Incorporation or the By-laws, or result in a default under or breach of any agreement or instrument binding upon the Company and so as to comply with any requirement or restriction imposed by any court or other governmental authority having jurisdiction over the Company and (iii) the Offered Debt Securities, in a form compliant with the Indenture and any supplemental indenture relating to such Offered Debt Securities and to be filed as an exhibit to a post-effective amendment to the Registration Statement or as an exhibit to a Current Report on Form 8-K or other applicable report under the Exchange Act in the manner contemplated in the Registration Statement or any prospectus supplement relating thereto, have been duly executed and authenticated in accordance with the provisions of the Indenture and any supplemental indenture relating to such Offered Debt Securities and delivered to the purchasers thereof upon payment of the agreed-upon consideration therefor, the Offered Debt Securities, when issued and sold or otherwise distributed in accordance with the Indenture and any supplemental indenture relating to such Offered Debt Securities and the applicable underwriting agreement, if any, or any other duly authorized, executed and delivered valid and binding agreement, will be valid and binding obligations of the Company, enforceable against the Company in accordance with their respective terms under the laws of the State of New York.

2. With respect to any series of Warrants offered by the Company (the “Offered Warrants”), when (i) a Warrant Agreement relating to the Offered Warrants has been duly authorized, executed and delivered by the Company and the other parties thereto; (ii) the terms of the Offered Warrants and their issuance and sale have been duly established and are then in conformity with the applicable Warrant Agreement so as not to violate any applicable law, the Articles of Incorporation or the By-Laws or result in a default under or breach of any agreement or instrument binding upon the Company and so as to comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company and (iii) the Offered Warrants have been duly executed, delivered, countersigned, issued and sold in accordance with the provisions of the applicable Warrant Agreement to be filed as an exhibit to a post-effective amendment to the Registration Statement or as an exhibit to a Current Report on Form 8-K or other applicable report under the Exchange Act in the manner contemplated in the Registration Statement or any prospectus supplement relating thereto, the Offered Warrants, when issued and sold or otherwise distributed in accordance with the applicable Warrant Agreement and the applicable underwriting agreement, if any, or any other duly authorized, executed and delivered valid and binding purchase or agency agreement, will be valid and binding obligations of the Company, enforceable against the Company in accordance with their respective terms under the laws of the State of New York.

 

Theriva Biologics, Inc.

May 2, 2024

Page 4

3. With respect to any Units offered by the Company (the “Offered Units”), when (i) a Unit Agreement relating to the Offered Units has been duly authorized, executed and delivered by the Company and the other parties thereto; (ii) the terms of the Offered Units and of their issuance and sale have been duly established and are then in conformity with the applicable Unit Agreement of which the Offered Units are a component so as not to violate any applicable law, the Articles of Incorporation or the By-Laws, or result in a default under or breach of any agreement or instrument binding upon the Company, and so as to comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company and (iii) the Offered Units have been duly executed, delivered, countersigned, issued and sold in accordance with the provisions of the applicable Unit Agreement to be filed as an exhibit to a post-effective amendment to the Registration Statement or as an exhibit to a Current Report on Form 8-K or other applicable report under the Exchange Act in the manner contemplated in the Registration Statement or any prospectus supplement relating thereto, the Offered Units, when issued and sold or otherwise distributed in accordance with the applicable Unit Agreement and the applicable underwriting agreement, if any, or any other duly authorized, executed and delivered valid and binding agreement, will be duly authorized and validly issued and will be valid and binding obligations of the Company, enforceable against the Company in accordance with their respective terms under the laws of the State of New York.

In addition to the assumptions, comments, qualifications, limitations and exceptions set forth above, the opinions set forth herein are further limited by, subject to and based upon the following:

a) Our opinions herein are expressed solely with respect to the applicable laws of the State of New York that, in our experience, are normally applicable to transactions of the type contemplated by the Registration Statement. The opinion set forth herein related to the Offered Units assumes that such Offered Units are governed by New York law. The opinions set forth herein are made as of the date hereof and are subject to, and may be limited by, future changes in the factual matters set forth herein, and we undertake no duty to advise you of the same that may occur after the Registration Statement becomes effective. The opinions expressed herein are based upon the law in effect (and published or otherwise generally available) on the date hereof, which laws are subject to change with possible retroactive effect, and we assume no obligation to revise or supplement these opinions should such law be changed by legislative action, judicial decision or otherwise after the Registration Statement becomes effective. In rendering our opinions, we have not considered, and hereby disclaim any opinion as to, the application or impact of any laws, cases, decisions, rules or regulations of any other jurisdiction, court or administrative agency.

 

Theriva Biologics, Inc.

May 2, 2024

Page 5

b) Our opinions set forth above are subject to and may be limited by (i) applicable bankruptcy, reorganization, insolvency, conservatorship, moratorium, fraudulent conveyance, debtor and creditor, and similar laws which relate to or affect creditors’ rights generally, and (ii) general principles of equity (including, without limitation, concepts of materiality, reasonableness, impossibility of performance, good faith and fair dealing) regardless of whether considered in a proceeding in equity or at law.

c) Our opinions are subject to the qualification that the availability of specific performance, an injunction or other equitable remedies is subject to the discretion of the court before which the request is brought.

d) You have informed us that you intend to issue the Registered Securities from time to time on a delayed or continuous basis, and this opinion is limited to the laws, including the rules and regulations, as in effect on the date hereof. We understand that prior to issuing any Registered Securities you will afford us an opportunity to review the operative documents pursuant to which such Registered Securities are to be issued (including the applicable prospectus supplement) and will file such supplement or amendment to this opinion (if any) as we may reasonably consider necessary or appropriate by reason of the terms of such Registered Securities.

We consent to the use of this opinion as an exhibit to the Registration Statement. We also consent to any and all references to us in the prospectus which is part of said Registration Statement. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission promulgated thereunder. This opinion is strictly limited to the matters stated herein and no other or more extensive opinion is intended, implied or to be inferred beyond the matters expressly stated herein. This opinion letter is not a guaranty nor may one be inferred or implied.

Very truly yours,

/s/ BLANK ROME

BLANK ROME LLP