HOOK · HOOKIPA Pharma Inc.

Substantial doubt about the company's ability to continue as a going concern.

“As of the filing date of this Quarterly Report on Form 10-Q, the Company's expectation to generate negative operating cash flows in the future and the need for additional funding to support its planned operations raise substantial doubt regarding the Company's ability to continue as a going concern for a period of one year after the date that these condensed consolidated financial statements are issued.”