Company: REVB
Filing Date: 2025-05-23
Form Type: S-1/A
Source: 0001213900-25-047104
Chunk: 0

Company: REVELATION BIOSCIENCES, INC.
Filing Date: 2025-05-23
Form: S-1/A
Chunk 0
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As filed with the U.S. Securities and Exchange Commission on May 23, 2025 Registration No. 333-287423 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933 REVELATION BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) DELAWARE (Jurisdiction of incorporation or organization)

| 2834                         |     | 84-3898466            |
| (Primary Standard Industrial 
 Classification Code Number)  |     | -I.R.S. Employer      
 Identification Number |

4660 La Jolla Village Drive,
Suite 100, San Diego,
CA 92122 (Address, including zip code, and telephone number, including area code, of Registrant’s principal executive offices) 650-800-3717
(Registrant’s telephone number, including area code) James Rolke
Chief Executive Officer
Revelation Biosciences, Inc.
4660 La Jolla Village Drive, Suite 100
San Diego, California 92122
650-800-3717 (Name, address and phone number of agent for service) Copies of Communications to:

| J.P. Galda, Esq.                  
 J.P. Galda & Co.                  
 40 East Montgomery Avenue LTW 220 
 Ardmore, Pennsylvania 19003       
 (215) 815-1534                    |     | Charles Phillips, Esq.         
 Ellenoff Grossman & Schole LLP 
 1345 Avenue of the Americas    
 New York, New York 10105       
 (212) 370-1300                 |

Approximate date of commencement of proposed sale to the public:As soon as practicable after the effective date of this Registration Statement. If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. ☒ If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ If this form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number