Theriva Biologics (TOVX) director gets 75,000 stock options grant

Rhea-AI Filing Summary

Theriva Biologics, Inc. reported a new equity award to one of its directors. On 01/05/2026, the director received 75,000 stock options to purchase common stock at an exercise price of $0.241 per share. These options are classified as derivative securities and are held directly by the reporting person.

The options begin to vest on 02/01/2026 and expire on 01/04/2033. They vest on a pro rata monthly basis over 12 months, meaning the award is spread evenly across a one-year period. Following this grant, the reporting person beneficially owns 75,000 derivative securities linked to Theriva Biologics common stock.

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

OMB APPROVAL

OMB Number:			3235-0287
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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^*

Wolf Jeffrey Alan

(Last) (First) (Middle)

C/O THERIVA BIOLOGICS, INC., 9605

MEDICAL CENTER DRIVE, SUITE 270

(Street)

ROCKVILLE MD 20850

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Theriva Biologics, Inc. [ TOVX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/05/2026

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

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
Stock Options (right to buy)	$0.241	01/05/2026		A		75,000(1)		02/01/2026(1)	01/04/2033	Common Stock	75,000	$0	75,000	D

Explanation of Responses:

1. These stock options vest pro rata on a monthly basis over 12 months.

	/s/ Jeffrey Alan Wolf	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction was reported for Theriva Biologics (TOVX)?

A director of Theriva Biologics, Inc. reported receiving 75,000 stock options to buy common stock at an exercise price of $0.241 per share.

When were the Theriva Biologics (TOVX) stock options granted and when do they expire?

The stock options were granted on 01/05/2026 and are scheduled to expire on 01/04/2033, giving the director several years to exercise them.

How do the 75,000 Theriva Biologics (TOVX) stock options vest?

The 75,000 stock options vest pro rata on a monthly basis over 12 months, starting from their initial exercisability date.

When do the Theriva Biologics (TOVX) director options become exercisable?

The options become exercisable starting on 02/01/2026, after which the director can begin exercising vested portions at the $0.241 exercise price.

How many Theriva Biologics (TOVX) derivative securities does the director own after this transaction?

After this stock option grant, the reporting director beneficially owns 75,000 derivative securities related to Theriva Biologics common stock, held directly.

What role does the reporting person have at Theriva Biologics (TOVX)?

The reporting person is identified as a director of Theriva Biologics, Inc. and filed the form as a single reporting person.