Calculation of Filing Fee Tables

S-8

Theriva Biologics, Inc.

Table 1: Newly Registered Securities

	Security Type	Security Class Title	Fee Calculation Rule	Amount Registered	Proposed Maximum Offering Price Per Unit	Maximum Aggregate Offering Price	Fee Rate	Amount of Registration Fee
1	Equity	Common Stock, $0.001 par value per share	457(a)	2,000,000	$ 0.41	$ 820,000.00	0.0001381	$ 113.24
Total Offering Amounts:						$ 820,000.00		$ 113.24
Total Fee Offsets:								$ 0.00
Net Fee Due:								$ 113.24

Offering Note

¹ The securities to be registered include options and other rights to acquire the common stock, par value $0.001 per share, of Theriva Biologics, Inc. (the "Registrant") issuable pursuant to the Registrant's 2020 Stock Incentive Plan, as amended (the "Plan"). Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), this registration statement also covers any additional securities that may be offered or issued in connection with any stock split, stock dividend or similar transaction. Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rule 457(c) and Rule 457(h) promulgated under the Securities Act. The offering price per share and the aggregate offering price are based upon the average of the high ($0.4288) and low ($0.3904) sales prices per share of the Registrant's Common Stock as reported on the NYSE American LLC as of October 3, 2025.

Table 2: Fee Offset Claims and Sources ☑Not Applicable

		Registrant or Filer Name	Form or Filing Type	File Number	Initial Filing Date	Filing Date	Fee Offset Claimed	Security Type Associated with Fee Offset Claimed	Security Title Associated with Fee Offset Claimed	Unsold Securities Associated with Fee Offset Claimed	Unsold Aggregate Offering Amount Associated with Fee Offset Claimed	Fee Paid with Fee Offset Source
Rule 457(p)
Fee Offset Claims	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Fee Offset Sources	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A