Sabby reports 9.56% stake in Revelation Biosciences

Rhea-AI Filing Summary

Revelation Biosciences, Inc. is the subject of a Schedule 13G reporting that Sabby Volatility Warrant Master Fund, Ltd., Sabby Management, LLC, and Hal Mintz together beneficially own 605,702 shares of its common stock, representing 9.56% of the class as of the event date of 12/31/2025. The filing shows these shares are held with shared voting and dispositive power and no sole voting or dispositive power. The reporting persons certify that the securities were not acquired and are not held for the purpose of changing or influencing control of Revelation Biosciences.

Insights

Equity ownership and disclosure analyst

Sabby entities report a passive 9.56% stake in Revelation Biosciences.

The Schedule 13G shows Sabby Volatility Warrant Master Fund, Ltd., Sabby Management, LLC, and Hal Mintz collectively beneficially owning 605,702 common shares of Revelation Biosciences, equal to 9.56% of the outstanding class. All three reporting persons list zero sole voting and dispositive power and the same shared voting and dispositive power over these shares.

Because the stake is reported on a Schedule 13G rather than 13D, the group certifies that the position was not acquired to change or influence control of the company. That indicates a passive investment posture under the rules cited, although future intent would depend on any subsequent filings.

The date of the reportable event is 12/31/2025, giving investors a snapshot of ownership at that point in time. Any material changes in this 9.56% position, or a shift from a 13G to a 13D filing status in later periods, would typically be reflected in updated beneficial ownership disclosures.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many Revelation Biosciences (REVB) shares do the Sabby entities report owning?

The filing reports that Sabby Volatility Warrant Master Fund, Ltd., Sabby Management, LLC, and Hal Mintz beneficially own a total of 605,702 shares of Revelation Biosciences common stock.

What percentage of Revelation Biosciences’ common stock is owned by the Sabby group?

The reported beneficial ownership is 9.56% of the outstanding common stock for each of Sabby Volatility Warrant Master Fund, Ltd., Sabby Management, LLC, and Hal Mintz.

Is the Sabby stake in Revelation Biosciences reported as passive or active?

The position is reported on a Schedule 13G, and the signatories certify that the securities were not acquired and are not held for the purpose of changing or influencing control of Revelation Biosciences.

Who are the reporting persons in the Revelation Biosciences (REVB) Schedule 13G?

The reporting persons are Sabby Volatility Warrant Master Fund, Ltd., Sabby Management, LLC, and Hal Mintz.

What voting and dispositive powers do the Sabby entities report over their REVB shares?

Each reporting person lists 0 shares with sole voting or dispositive power and 605,702 shares with shared voting and shared dispositive power.

What is the event date for the beneficial ownership reported in this Schedule 13G for REVB?

The date of the event that triggered the Schedule 13G filing is 12/31/2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 01/20/2026 - 08:31 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

REVELATION BIOSCIENCES, INC.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

76135L705

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 76135L705

1

Names of Reporting Persons

SABBY MANAGEMENT, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 605,702.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 605,702.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

605,702.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.6 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP No. 76135L705

1

Names of Reporting Persons

Hal Mintz

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

FLORIDA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 605,702.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 605,702.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

605,702.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.6 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP No. 76135L705

1

Names of Reporting Persons

Sabby Volatility Warrant Master Fund, Ltd.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 605,702.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 605,702.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

605,702.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.6 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: REVELATION BIOSCIENCES, INC.
(b)	Address of issuer's principal executive offices: 4660 LAJOLLA VILLAGE DRIVE, SUITE 100, SAN DIEGO, CALIFORNIA, 92122
Item 2.
(a)	Name of person filing: Sabby Volatility Warrant Master Fund, Ltd. Sabby Management, LLC Hal Mintz
(b)	Address or principal business office or, if none, residence: Sabby Volatility Warrant Master Fund, Ltd. c/o Captiva (Cayman) Ltd Governors Square, Bldg 4, 2nd Floor 23 Lime Tree Bay Avenue P.O. Box 32315 Grand Cayman KY1-1209 Cayman Islands Sabby Management, LLC 1011 Links Dr. Miami Beach, FL 33109 Hal Mintz c/o Sabby Management, LLC 1011 Links Dr. Miami Beach, FL 33109
(c)	Citizenship: Sabby Volatility Warrant Master Fund, Ltd. - Cayman Islands Sabby Management, LLC - Delaware, USA Hal Mintz - USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 76135L705
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Sabby Volatility Warrant Master Fund, Ltd. - 605,702 Sabby Management, LLC - 605,702 Hal Mintz - 605,702
(b)	Percent of class: Sabby Volatility Warrant Master Fund, Ltd. - 9.56% Sabby Management, LLC - 9.56% Hal Mintz - 9.56%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 605,702
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 605,702
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

SABBY MANAGEMENT, LLC

Signature:	/s/ Robert Grundstein
Name/Title:	COO
Date:	01/20/2026

Hal Mintz

Signature:	/S/ HAL MINTZ
Name/Title:	HAL MINTZ
Date:	01/20/2026

Sabby Volatility Warrant Master Fund, Ltd.

Signature:	/s/ Harry Thompson
Name/Title:	Harry Thompson
Date:	01/20/2026