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HOOKIPA Pharma Announces Intention to Voluntarily Delist and Deregister its Common Stock

NEW YORK and VIENNA, July 18, 2025 (GLOBE NEWSWIRE) -- HOOKIPA Pharma Inc. (NASDAQ: HOOK, 鈥淗OOKIPA鈥�), a clinical-stage biopharmaceutical company developing next-generation immunotherapeutics for the treatment of cancer and serious infectious diseases, today announced听its intention to voluntarily delist from the Nasdaq Capital Market (鈥淣asdaq鈥�) and to deregister its common stock under Section 12(b) and Section 12(g) of the Securities Exchange Act of 1934, as amended (the 鈥淓xchange Act鈥�), and suspend its reporting obligations under Section 15(d) of the Exchange Act.

In connection with the consideration and evaluation of HOOKIPA鈥檚 long-term prospects and strategies by HOOKIPA鈥檚 board of directors, on May听21, 2025 HOOKIPA entered into an asset purchase agreement (鈥淎sset Purchase Agreement鈥�) with Gilead Sciences,听Inc. (鈥淕ilead鈥�) pursuant to which Gilead will acquire all of HOOKIPA鈥檚 assets primarily related to or necessary for the conduct of HOOKIPA鈥檚 HB-400 program, currently in clinical development for the treatment of hepatitis B virus, and certain of HOOKIPA鈥檚 assets related to HOOKIPA鈥檚 HB-500 program, currently in clinical development for the treatment of human immunodeficiency virus (collectively, the 鈥淎sset Sale鈥�). HOOKIPA has been developing the HB-400 and HB-500 programs in collaboration with Gilead pursuant to the collaboration and license agreement with Gilead. HOOKIPA is holding a special meeting of stockholders (the 鈥淪pecial Meeting鈥�) on July 29, 2025, at 10:00 a.m. Eastern Time to seek stockholder approval of the Asset Sale and to approve the dissolution and liquidation of HOOKIPA in accordance with Delaware law.

If the stockholders approve the Asset Sale and the dissolution and liquidation of HOOKIPA, HOOKIPA intends to file a Certificate of Dissolution (the 鈥淐ertificate of Dissolution鈥�) with the Delaware Secretary of State as soon as practicable following the closing of the Asset Sale and the completion of the transfer plan under the Asset Purchase Agreement. Upon HOOKIPA鈥檚 filing of a Certificate of Dissolution with the Delaware Secretary of State, the winding up and liquidation of HOOKIPA will commence.

In determining to voluntarily delist and deregister its common stock, HOOKIPA considered that, assuming its stockholders approve the Asset Sale and the dissolution and liquidation of HOOKIPA at the Special Meeting, following the Asset Sale and through the subsequent liquidation and dissolution of the company, HOOKIPA would have an obligation to continue to comply with the applicable reporting requirements of the Securities Exchange Act of 1934, as amended, even though compliance with these reporting requirements would be economically burdensome in light of the Asset Sale and HOOKIPA鈥檚 announced intent to dissolve and liquidate. Further, the expenses incurred by HOOKIPA in complying with the applicable reporting requirements would reduce the assets available for ultimate distribution to stockholders.

On July 18, 2025, HOOKIPA notified Nasdaq of its intent to voluntarily delist its common stock from Nasdaq. HOOKIPA currently anticipates that it will file with the Securities and Exchange Commission (鈥淪EC鈥�) a Form 25 relating to the delisting and deregistration of its common stock on or about July 29, 2025, and anticipates that the delisting and deregistration under Section 12(b) of its common stock will then become effective on or about August 8, 2025. Following the delisting, any trading in HOOKIPA鈥檚 common stock would only occur in privately negotiated sales and potentially on an over-the-counter market; however, there is no guarantee that a broker will make a market in the common stock and that trading of the common stock will continue on an over-the-counter market or otherwise.

Following the delisting of its common stock from Nasdaq, HOOKIPA intends to file a Form 15 with the SEC to deregister its common stock under Section 12(g) of the Exchange Act and suspend its reporting obligations under Section 15(d) of the Exchange Act. As a result of the filing of the Form 15, HOOKIPA鈥檚 obligation to file certain Exchange Act reports and forms with the SEC, including certain Forms 10-K, 10-Q and 8-K, will cease. HOOKIPA will generally be relieved of all reporting obligations under the听Exchange Act听upon the effectiveness of the Form 15.听The Company expects that the deregistration of its common stock will become effective 90 days after the filing of the Form 15 with the SEC.听

About HOOKIPA
HOOKIPA Pharma Inc. (NASDAQ: HOOK) is a clinical-stage biopharmaceutical company focused on developing next generation immunotherapeutics based on its proprietary arenavirus platform. The company鈥檚 product candidates are designed to induce specific, robust and durable CD8+ T cells and antibodies to eliminate cancers and serious infectious diseases. HOOKIPA鈥檚 pipeline includes biological therapies for oncology, targeting human papillomavirus type 16-positive (HPV16+) cancers, KRAS mutated cancers, and other targets. In addition, HOOKIPA has partnered with Gilead Sciences, Inc. to develop therapies that are intended to provide functional cures for hepatitis B virus (HBV) and human immunodeficiency virus-1 (HIV-1).听Find out more about HOOKIPA online at听.

Forward Looking Statements
Certain statements set forth in this press release constitute 鈥渇orward-looking鈥� statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements can be identified by terms such as 鈥渁nticipates,鈥� 鈥渂elieves,鈥� 鈥渆xpects,鈥� 鈥減lans,鈥� 鈥減otential,鈥� 鈥渨ill,鈥� 鈥渨ould鈥� or similar expressions and the negative of those terms. Forward-looking statements in this press release include HOOKIPA鈥檚 statements regarding its plans and its ability to successfully delist from Nasdaq and to deregister its common stock as well as the anticipated benefits thereof, the potential for a trading market in HOOKIPA鈥檚 common stock following the delisting, and HOOKIPA鈥檚 expectations to close the Asset Sale and to dissolve and liquidate. Such forward-looking statements involve substantial risks and uncertainties that could cause actual results or events to differ materially from those that may be expressed or implied by these forward-looking statements, including, but not limited to, the uncertainty of stockholder approval of the Asset Sale and the dissolution and liquidation of HOOKIPA, the timing and ability of HOOKIPA to close the Asset Sale, the timing and effectiveness of HOOKIPA鈥檚 delisting and deregistration of the common stock, and the sufficiency of existing cash to fund听operations. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of HOOKIPA in general, see HOOKIPA鈥檚 Annual Report on Form 10-K for the year ended December听31,听2024, as well as discussions of potential risks, uncertainties, and other important factors in HOOKIPA鈥檚 subsequent filings with the SEC, which are available on the SEC鈥檚 website at听 and HOOKIPA鈥檚 website at听. All information in this press release is as of the date of the release, and HOOKIPA undertakes no duty to update this information unless required by law.

Availability of Other Information About HOOKIPA
Investors and others should note that we announce material financial information to our investors using our investor relations website,听, SEC filings, press releases, public conference calls and webcasts. We use these channels, as well as social media, to communicate with our investors and the public about our company, and other issues. It is possible that the information we post on social media could be deemed to be material information. Therefore, we encourage investors, the media, and others interested in our company to review the information we post on the social media channels listed on our investor relations website.

For further information, please contact:

Investors
Chuck Padala
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