SOLIGENIX, INC. | Business Contracts

Description of Securities (Filed With SEC on March 31, 2023)

Soligenix, Inc. 2015 Equity Incentive Plan, as amended on June 18, 2017, September 27, 2018, September 6, 2019 and September 22, 2022 (Filed With SEC on September 23, 2022)

Registration Rights Agreement, dated December 15, 2020 by and among Soligenix, Inc. and the other parties named therein (Filed With SEC on December 16, 2020)

Amendment No. 1 to At Market Issuance Sales Agreement dated August 28, 2020 between Soligenix, Inc. and B. Riley FBR, Inc (Filed With SEC on August 28, 2020)

Description of Securities (Filed With SEC on March 29, 2022)

Description of Securities (Filed With SEC on March 30, 2021)

Loan and Security Agreement, dated December 15, 2020 (Filed With SEC on December 16, 2020)

Third Amendment to Employment Agreement dated as of December 10, 2020, between Soligenix, Inc. and Christopher J. Schaber, PhD (Filed With SEC on December 16, 2020)

Certification of Chief Executive Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the Sarbanes-Oxley Act of 2002) (Filed With SEC on November 12, 2020)

Description of Securities (Filed With SEC on March 30, 2020)

Second Amendment to Employment Agreement dated as of January 2, 2020, between Soligenix, Inc. and Christopher J. Schaber, PhD (Filed With SEC on January 3, 2020)

Soligenix, Inc. 2015 Equity Incentive Plan, as amended on as amended on June 18, 2017 and September 27, 2018 and as proposed to be amended on September 6, 2019 (Filed With SEC on September 11, 2019)

Employment Agreement dated as of September 6, 2019 between the Company and Jonathan L. Guarino (Filed With SEC on September 11, 2019)

First Amendment to Employment Agreement dated as of April 1, 2019 between the Company and Richard Straube, M.D (Filed With SEC on March 26, 2019)

Soligenix, Inc. 2015 Equity Incentive Plan, as amended on September 27, 2018 (Filed With SEC on September 28, 2018)

Form of Warrant to be issued to each investor (Filed With SEC on June 20, 2018)

Form of Underwriting Agreement (Filed With SEC on June 18, 2018)

Form of Representatives Warrant (Filed With SEC on June 18, 2018)

SOLIGENIX, INC. (18)