Revelation Biosciences (REVB) CFO gets 78,145-share equity award units

Rhea-AI Filing Summary

Revelation Biosciences, Inc. Chief Financial Officer Chester S Zygmont III reported an indirect equity award through a family trust. On 01/08/2026, The Zygmont Family Trust received 78,145 shares of common stock as restricted stock units under the 2021 Equity Incentive Plan at $0.90 per share, vesting quarterly over two years from the grant date. Following this award, the trust indirectly held 473,790 shares of common stock for his benefit, with additional indirect holdings disclosed through Czeslaw Capital Fund, LLC.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Zygmont Chester Stanley III

(Last) (First) (Middle)

C/O REVELATION BIOSCIENCES, INC.

4660 LA JOLLA VILLAGE DR., SUITE 100

(Street)

SAN DIEGO CA 92122

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
REVELATION BIOSCIENCES, INC. [ REVB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/08/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock								395,640	I	By Trust(2)
Common Stock								5	I	By LLC(3)
Common Stock(1)	01/08/2026		A		78,145	A	$0.9	473,790	I	By Trust(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Restricted Stock Units under the 2021 Equity Incentive Plan. Vests quarterly over two years from the date of grant.

2. Shares are held by The Zygmont Family Trust Dated October 25, 2016, with respect to which Chester S Zygmont III is a trustee.

3. Shares are held by Czeslaw Capital Fund, LLC. Chester S Zygmont III is the sole manager of Czeslaw Capital Fund, LLC.

	/s/ J.P. Galda, as attorney-in-fact for Chester S Zygmont III	01/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transaction did REVB disclose for its CFO on January 8, 2026?

The filing shows that the Chief Financial Officer, Chester S Zygmont III, reported an indirect award of 78,145 shares of Revelation Biosciences common stock on 01/08/2026 through a family trust.

What type of equity did the REVB CFO receive and under which plan?

The transaction involved restricted stock units in Revelation Biosciences common stock, granted under the company’s 2021 Equity Incentive Plan.

What are the vesting terms of the REVB CFO’s restricted stock units?

The restricted stock units granted to the trust for the benefit of the CFO vest quarterly over two years from the date of grant.

At what price were the REVB restricted stock units valued in the Form 4?

The restricted stock units granted on 01/08/2026 were reported at a price of $0.90 per share of Revelation Biosciences common stock.

How many Revelation Biosciences shares did the family trust hold after the reported grant?

After the reported award, The Zygmont Family Trust was shown as indirectly holding 473,790 shares of Revelation Biosciences common stock for the benefit of the CFO.

How are the REVB CFO’s indirect holdings structured according to the Form 4?

The filing states that shares are held indirectly by The Zygmont Family Trust, where Chester S Zygmont III is a trustee, and by Czeslaw Capital Fund, LLC, where he is the sole manager.