Exhibit 99.1

JOINT FILING AGREEMENT

This Joint Filing Agreement, dated as of August 25, 2023, is by and among First Light Asset Management, LLC and Mathew P. Arens (collectively, the "Filers").

Each of the Filers may be required to file with the United States Securities and Exchange Commission a statement on Schedule 13G and/or 13D with respect to Common Stock, $0.01 par value per share, of Societal CDMO, Inc. beneficially owned by them from time to time.

Pursuant to and in accordance with Rule 13(d)(1)(k) promulgated under the Securities Exchange Act of 1934, as amended, the Filers hereby agree to file a single statement on Schedule 13G and/or 13D (and any amendments thereto) on behalf of each of such parties, and hereby further agree to file this Joint Filing Agreement as an exhibit to such statement, as required by such rule.

This Joint Filing Agreement may be terminated by any of the Filers upon one week's prior written notice (or such lesser period of notice as the Filers may mutually agree) to the other party.

Executed and delivered as of the date first above written.

FIRST LIGHT ASSET MANAGEMENT, LLC

By: /s/ Kurt T. Peterson                                          
        Kurt T. Peterson, Chief Compliance Officer


MATHEW P. ARENS

By: /s/ Mathew P. Arens                                         
        Mathew P. Arens