Press Release: Novartis announces expiration of Tourmaline Bio tender offer

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Basel, October 28 2025 - Novartis today announced that its previously announced tender offer (the "offer") by Torino Merger Sub Inc., a Delaware corporation and an indirect wholly owned subsidiary of Novartis ("Purchaser"), to acquire all of the outstanding shares of common stock, par value $0.0001 per share (the "Shares"), of Tourmaline Bio, Inc., a Delaware corporation ("Tourmaline"), at a price of $48.00 per Share, in cash, without interest and subject to any applicable withholding, expired at one minute following 11:59 p.m., Eastern Time, on October 27, 2025 (the "Expiration Date").

Computershare Trust Company, N.A., the depositary for the offer, has advised that, as of the Expiration Date, approximately 24,030,382 Shares were validly tendered and not validly withdrawn pursuant to the offer, representing approximately 92.94% of the issued and outstanding Shares immediately prior to the Expiration Date.

The parties expect the transaction to close on October 28, 2025, promptly following the acceptance of all Shares validly tendered and not validly withdrawn pursuant to the offer.

Disclaimer

This press release contains statements that are not statements of historical fact, or "forward-looking statements," including with respect to Novartis's proposed acquisition of Tourmaline. Forward-looking statements can generally be identified by words such as "potential," "can," "will," "plan," "may," "could," "would," "expect," "anticipate," "look forward," "believe," "committed," "investigational," "pipeline," "launch," or similar terms, or by express or implied discussions regarding potential marketing approvals, new indications or labeling for Tourmaline's product candidates, Tourmaline's platform, the proposed acquisition of Tourmaline and the expected timetable for completing the proposed acquisition, the benefits sought to be achieved in the proposed acquisition, or potential future revenues from Tourmaline's product candidates. You should not place undue reliance on these statements. Such forward-looking statements are based on Novartis's current beliefs and expectations regarding future events and are subject to significant known and unknown risks and uncertainties. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those set forth in the forward-looking statements. There can be no guarantee that clinical trials for any of Tourmaline's product candidates will be successful, that Tourmaline's approach to the discovery and development of product candidates based on its AOC(TM) platform will produce any products of commercial value, that any of Tourmaline's product candidates will be submitted for marketing approval or approved for sale or, if approved, receive approval for any additional indications or labeling, in any market, or at any particular time, nor can there be any guarantee that, if approved, any of Tourmaline's product candidates will be commercially successful in the future. Neither can there be any guarantee that the conditions to the closing of the proposed acquisition will be satisfied on the expected timetable or at all or that the expected benefits or synergies from this transaction will be achieved in the expected timeframe, or at all. In particular, expectations regarding Tourmaline or the transaction described in this press release could be affected by, among other things, the satisfaction of customary closing conditions; the risk that competing offers or acquisition proposals will be made; the effects of disruption from the transactions contemplated by the Merger Agreement and the impact of the announcement and pendency of the transactions on Novartis and/or Tourmaline's businesses, including their relationships with employees, business partners or governmental entities; the risk that the offer or the merger may be more expensive to complete than anticipated; the risk that stockholder litigation in connection with the offer or the merger may result in significant costs of defense, indemnification and liability; a diversion of management's attention from ongoing business operations and opportunities as a result of the offer, the merger or otherwise; general industry conditions and competition; general political, economic and business conditions, including interest rate and currency exchange rate fluctuations; the uncertainties inherent in research and development, including clinical trial results and additional analysis of existing clinical data; regulatory actions or delays or government regulation generally; global trends toward health care cost containment, including government, payor and general public pricing and reimbursement pressures and requirements for increased pricing transparency; our ability to obtain or maintain proprietary intellectual property protection; the particular prescribing preferences of physicians and patients; general political, economic and business conditions; safety, quality, data integrity or manufacturing issues; potential or actual data security and data privacy breaches, or disruptions of our information technology systems, and other risks and factors referred to in Novartis AG's and Tourmaline's filings and reports with the SEC, including Novartis AG's Annual Report on Form 20-F for the year ended December 31, 2024, Tourmaline's Annual Report on Form 10-K for the year ended December 31, 2024, Quarterly Reports on Form 10-Q for the quarters ended March 31, 2025 and June 30, 2025, and any subsequent filings made by either party with the SEC, available on the SEC's website at www.sec.gov. Novartis is providing the information in this press release as of this date, and Novartis does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise, except to the extent required by law.

About Novartis

Novartis is an innovative medicines company. Every day, we work to reimagine medicine to improve and extend people's lives so that patients, healthcare professionals and societies are empowered in the face of serious disease. Our medicines reach more than 300 million people worldwide.

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Novartis Media Relations

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(END) Dow Jones Newswires

October 28, 2025 02:25 ET (06:25 GMT)