Company: REVB
Filing Date: 2025-04-04
Form Type: DRS
Source: 0001213900-25-029022
Chunk: 205

Company: REVELATION BIOSCIENCES, INC.
Filing Date: 2025-04-04
Form: DRS
Chunk 205
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 the warrant agreement. Rollover Warrants In connection with a private placement on January 31, 2021, Revelation issued warrants to a placement agent to purchase up to 17 shares of common stock with an exercise price of $45,070.73 per share which expire on January 31, 2027, valued on the issuance date in the aggregate at $326,675 (the “Rollover Warrants”). As of December 31, 2024, there were 7 Rollover Warrants remaining to be exercised or exchanged. The fair value of the Rollover Warrants were estimated using the Black -Scholesoption pricing model with the following assumptions:

| Volatility              |     |  115 | % |
| Expected term (years)   |     |    6 |   |
| Risk-free interest rate |     | 0.85 | % |
| Expected dividend yield |     |  0.0 | % |

F-20

REVELATION BIOSCIENCES, INC. Notes to the Consolidated Financial Statements 10. Warrants (cont.) Class A Common Stock Warrants In connection with the closing of a private placement on January 25, 2022 (“PIPE Investment”), the Company issued warrants to an institutional investor to purchase up to 154 shares of common stock at an exercise price of $55,272.00 per share (the “Class A Common Stock Warrants”), valued on the PIPE Investment purchase date in the aggregate at $3.6 million and included in the issuance costs of the PIPE Investment and treated as equity. The warrants were exercisable immediately upon issuance, provide for a cash or cashless exercise right and expire on July 25, 2027. The fair value of the Class A Common Stock Warrants were estimated using the Black -Scholesoption pricing model with the following assumptions:

| Volatility              |     |   47 | % |
| Expected term (years)   |     |    5 |   |
| Risk-free interest rate |     | 1.54 | % |
| Expected dividend yield |     |  0.0 | % |

Class A Placement Agent Common Stock Warrants In connection with the PIPE Investment, the Company issued warrants to Roth to purchase an aggregate of 22 shares of common stock at an exercise price of $55,272.00 per share (the “Class A Placement Agent Common Stock Warrants”), valued on the PIPE Investment purchase date in the aggregate at $0