Hanmi Pharmaceutical Co. Ltd. and Health Hope Pharma Ltd. may be getting a second wind for encequidar and the Orascovery platform, with Gilead Sciences Inc. picking up exclusive global rights to develop and commercialize encequidar in the field of virology for $2.5 million up front.

Anaptysbio Inc. said it intends to split into two publicly traded companies – one for developing a pipeline, the other for managing royalties – each with its own business model. The royalty company will hold and manage the rights to big-earning Jemperli (dostarlimab) royalties from collaborator GSK plc, along with imsidolimab milestones and royalties from Vanda Pharmaceuticals Inc.

Genmab A/S is paying $8 billion to acquire Merus NV, gaining rights to the latter’s phase III-stage petosemtamab, a bispecific antibody initially in development for head and neck cancer, and continuing the firm’s strategy to transition from a royalty-based operation to a fully integrated biopharma.

Jiangsu Hengrui Pharmaceuticals Co. Ltd. struck another $1 billion-plus deal, this time for a HER2-targeting antibody-drug conjugate (ADC), trastuzumab rezetecan (SHR-A1811), with Glenmark Pharmaceuticals Ltd.’s subsidiary Glenmark Specialty SA.

Mabwell Bioscience Co. Ltd. and Aditum Bio Management Co. LLC announced, in after-market hours Sept. 17, an agreement to forge a new company called Kalexo Bio Inc. and load the biotech with a preclinical dyslipidemia asset via a potential $1 billion global license deal.

Starpharma Holdings Ltd.’s stock shot up 73% on the news that it is outlicensing its dendrimer enhanced product drug delivery technology to Roche Holding AG subsidiary Genentech Inc. in a deal worth more than $569 million.

Celltrion Inc. announced plans to acquire from Eli Lilly and Co. a Branchburg, N.J.-based biologics cGMP facility for $330 million up front, with plans to invest up to a total of ₩1.4 trillion (US$1 billion) in plant acquisition and expansion.

The unsettling impact that the Trump administration’s health care and tariff initiatives are having on M&A activity and financing is highlighted in a new survey of CEOs and investors, who say uncertainty related to the U.S. policy environment is the top challenge they face when it comes to executing deals.

Staar Surgical Co. reported that its 45-day window shop period ended on Sept. 19 with no competing bids made, and it urged its shareholders to vote in favor of completing the $1.5 billion cash merger with Alcon AG.

Pfizer Inc. bounced back in a big way from a GLP-1 trip-up this spring by making known its plan to take over what Metsera Inc. CEO Whit Bernard has called the “scale-obsessed” obesity player that he steers. Pfizer has agreed to pay $47.50 each for all of Metsera’s outstanding shares.