Company: REVB
Filing Date: 2025-09-16
Form Type: S-3
Source: 0001193125-25-205145
Chunk: 2

Company: REVELATION BIOSCIENCES, INC.
Filing Date: 2025-09-16
Form: S-3
Chunk 2
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 the date of stockholder approval at an exercise price of $2.20 per share. We are not selling any shares of common stock under this prospectus and will not receive any proceeds from the sale of the shares of common stock. We may, however, receive proceeds from any warrants that are exercised through the payment of the exercise price in cash, in a maximum amount of up to approximately $28,743,000. We are paying however all of the fees and expenses in connection with the registration of the shares of common stock.

Pursuant to Rule 429 under the Securities Act of 1933, as amended, this prospectus also constitutes a combined prospectus relating to the shares of common stock issuable upon the exercise of our Class C, Class D, and Class H common stock purchase warrants that were previously registered on prior registration statements on Form S-1 (Commission File Nos. 333-268576, 333-276232 and 333-287423, respectively). Accordingly, this registration statement on Form S-3 shall also be deemed to be a post-effective amendment to the respective Form S-1 registration statements with respect to such previously registered warrant shares.

Our common stock is listed on the Nasdaq Capital Market under the symbol “REVB.” On September 11, 2025, the last reported sale price of our common stock on the Nasdaq Capital Market was $2.00.

Investing in our securities involves a high degree of risk. You should carefully consider the risk factors incorporated by reference from our filings with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, including particularly the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, before you invest in our securities.

<div align='center'>The date of this prospectus is , 2025</div>

TABLE OF CONTENTS

|                                                   | Page |
| ABOUT THIS PROSPECTUS                             |    1 |
| SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS |    2 |
| PROSPECTUS SUMMARY                                |    3 |
| ABOUT THE COMPANY                                 |    3 |
| SUMMARY OF THE OFFERING                           |    3 |
| RISK FACTORS                                      |    4 |
| USE OF PROCEEDS                                   |    5 |
| PRIVATE PLACEMENT OF WARRANTS                     |    6 |
| SELLING STOCKHOLDERS                              |    7 |
| PLAN OF DISTRIBUTION                              |