Company: REVB
Filing Date: 2025-05-23
Form Type: S-1/A
Source: 0001213900-25-047104
Chunk: 229

Company: REVELATION BIOSCIENCES, INC.
Filing Date: 2025-05-23
Form: S-1/A
Chunk 229
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 costs of the warrant inducement and are treated as equity. The Class E Common Stock Warrants were exercisable immediately
upon issuance, provide for a cash or cashless exercise right and expire on . In connection with the Class E Warrant Inducement
(see Note 5), of these warrants were exercised. As of March 31, 2025, there are Class E Common Stock Warrants outstanding
to purchase shares of common stock.

The fair value of the Class E Common Stock Warrants
were estimated using the Black-Scholes option pricing model with the following assumptions:

| Volatility              |     |   95 | % |
| Expected term (years)   |     |    5 |   |
| Risk-free interest rate |     | 3.77 | % |
| Expected dividend yield |     |  0.0 | % |

F-39

Class F Common Stock Warrants

On December 3, 2024 in connection with the Class E Warrant Inducement, (see Note 5), the Company issued Class F Common Stock Warrants to purchase up to 254,002shares of common stock at an initial exercise price of $ 16.00per share. The Class F Warrants have an alternative cashless exercise provision that allows the holder to receive twoshares of common stock without payment of the exercise price. The Company valued the Class F Common Stock Warrants on the issuance date, based on the alternative cashless exercise provision, at $ 4.1million, which was included in the issuance costs of the warrant inducement and are treated as equity. The Class F Common Stock Warrants are exercisable for a period of two yearsfrom January 17, 2025, which was the date of stockholder approval. As of March 31, 2025, the Company received alternative cashless exercise notices for 191,503Class F Common Stock Warrants resulting in the issuance of 383,005shares of common stock, with 62,500Class F Common Stock Warrants outstanding.

Class G Common Stock Warrants

On December 3, 2024 in connection with the Class E Warrant Inducement (see Note 5), the Company issued Class G Common Stock Warrants to purchase up to 381,004shares of common stock at an initial exercise price of $ 16.00per share, valued on the issuance date in the aggregate at $ 2.1million, which was included in the