Contract analysis

UNDERWRITING AGREEMENT Execution Version October 12, 2023 6,250,000 Shares of Common Stock (par value $0.001 per share) of PENTERRA PHARMACEUTICALS CORP. a Delaware corporation Secondary Offering by the Selling Stockholders Named in Schedule I Hereto Pursuant to the Shelf Registration Statement on Form S-3 (File No. 333-274851) Declared Effective August 22, 2023 Prospectus Supplement dated October 12, 2023 Filed Purs