Item 9.01     Financial Statements and Exhibits.



(d) Exhibits



Exhibit
 Number                                Description
  2.1*     Business Combination Agreement, dated as of July 19, 2021, by and

         between Capstar Special Purpose Acquisition Corp., CPSR Gelesis Merger
         Sub, Inc. and Gelesis, Inc.

*Certain exhibits and schedules to this Exhibit have been omitted in accordance with Item 601(a)(5) of Regulation S-K. CPSR agrees to furnish supplementally a copy of any omitted exhibit or schedule to the SEC upon its request.

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