Exhibit 5.3
July 29, 2021
CRISPR Therapeutics AG
Baarerstrasse 14
6300 Zug
Switzerland
Re: | Securities Being Registered under Registration Statement on Form S-3 |
We have acted as U.S. counsel to you in connection with your filing of an automatic shelf registration statement on Form S-3 (as amended or supplemented, the “Registration Statement”) pursuant to the Securities Act of 1933, as amended (the “Securities Act”), relating to the registration by CRISPR Therapeutics AG, a Swiss stock corporation (Aktiengesellschaft) (the “Company”), of an indeterminate amount of any combination of (i) common shares, par value CHF 0.03 per share (the “Common Shares”), of the Company, (ii) debt securities of the Company (“Debt Securities”), (iii) warrants to purchase Common Shares, Debt Securities or Units (as defined below ) (“Warrants”), (iv) units comprised of Common Shares, Debt Securities, Warrants and other securities in any combination (“Units”), and (v) subscription rights, which may be issued independently or together with any other Security (as defined below) (“Subscription Rights”). The Common Shares, Debt Securities, Warrants, Units and Subscription Rights are sometimes referred to collectively herein as the “Securities.” Securities may be issued in an unspecified number (with respect to Common Shares, Warrants, Units and Subscription Rights) or in an unspecified principal amount (with respect to Debt Securities). The Registration Statement provides that the Securities may be offered separately or together, in separate series, in amounts, at prices and on terms to be set forth in one or more prospectus supplements (each a “Prospectus Supplement”) to the prospectus contained in the Registration Statement.
We have reviewed such documents and made such examination of law as we have deemed appropriate to give the opinions set forth below. We have relied, without independent verification, on certificates of public officials and, as to matters of fact material to the opinions set forth below, on certificates of officers of the Company.
The opinions set forth below are limited to the law of New York.
For purposes of the opinions set forth below, without limiting any other exceptions or qualifications set forth herein, we have assumed that (i) each of the Debt Securities, Warrants, Units and Subscription Rights, and the indentures, warrant agreements, unit agreements and other agreements governing Securities offered pursuant to the Registration Statement will be governed by the internal law of New York and (ii) after the issuance of any Securities offered pursuant to the Registration Statement, the total number of issued Common Shares, together with the total number of such shares issuable upon the exercise, exchange, conversion or settlement, as the case may be, of any exercisable, exchangeable or convertible security (including without limitation any Warrants, convertible or exchangeable Debt Securities, Unit or Subscription Right as the case may be, then outstanding, will not exceed the total number of authorized Common Shares available for issuance under the Company’s articles of association as then in effect.