Exhibit 5.1
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One Financial Center
Boston, MA 02111 617 542 6000
mintz.com |
November 1, 2023
G1
Therapeutics, Inc.
700 Park Offices Drive, Suite 200
Research Triangle Park, NC 27709
Ladies and Gentlemen:
We have acted as legal counsel to G1 Therapeutics, Inc., a Delaware corporation (the Company), in connection with the preparation
and filing with the Securities and Exchange Commission (the Commission) of a Registration Statement on Form S-8 (the Registration Statement), pursuant to which the Company is
registering the issuance under the Securities Act of 1933, as amended (the Securities Act), of 1,096,553 shares (the Shares) of the Companys common stock, $0.0001 par value per share, that may be issued pursuant to the
Companys Amended and Restated 2017 Employee, Director and Consultant Equity Plan, as amended (the 2017 Plan). This opinion is being rendered in connection with the filing of the Registration Statement with the Commission. All
capitalized terms used herein and not otherwise defined shall have the respective meanings given to them in the Registration Statement.
In connection with this opinion, we have examined the Companys Amended and Restated Certificate of Incorporation and Amended and
Restated Bylaws, each as currently in effect; the 2017 Plan; such other records of the corporate proceedings of the Company and certificates of the Companys officers as we have deemed relevant; and the Registration Statement and the exhibits
thereto.
In our examination, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity
of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified or photostatic copies, the authenticity of the originals of such copies, and the truth and correctness of any
representations and warranties contained therein. In addition, we have assumed that the Company will receive any required consideration in accordance with the terms of the 2017 Plan.
Our opinion expressed herein is limited to the General Corporation Law of the State of Delaware and we express no opinion with respect to the
laws of any other jurisdiction. No opinion is expressed herein with respect to the qualification of the Shares under the securities or blue sky laws of any state or any foreign jurisdiction.
Please note that we are opining only as to the matters expressly set forth herein, and no opinion should be inferred as to any other matters.
This opinion is based upon currently existing statutes, rules, regulations and judicial decisions, and we disclaim any obligation to advise you of any change in any of these sources of law or subsequent legal or factual developments which might
affect any matters or opinions set forth herein.
Based upon the foregoing, we are of the opinion that the Shares, when issued and
delivered in accordance with the terms of the 2017 Plan will be validly issued, fully paid and non-assessable.
We understand that you wish to file this opinion with the Commission as an exhibit to the Registration Statement in accordance with the
requirements of Item 601(b)(5) of Regulation S-K promulgated under the Securities Act, and we hereby consent thereto. In giving this consent, we do not 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.
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Very truly yours, |
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/s/ Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. |
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. |
BOSTON LOS
ANGELES NEW YORK SAN DIEGO SAN FRANCISCO TORONTO WASHINGTON
MINTZ, LEVIN, COHN, FERRIS, GLOVSKY AND POPEO,
P.C.