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Japan’s Shionogi boosts ViiV stake in $2.13 billion deal as Pfizer exits

By Thomson Reuters Jan 20, 2026 | 1:19 AM

Jan 20 (Reuters) – Japan’s Shionogi & Co said on Tuesday it would pay $2.13 ‍billion for new shares in ViiV Healthcare, its joint venture with British drugmaker GSK, increasing its stake in ‌the HIV drugmaker to ‌21.7% as U.S. drugmaker Pfizer exits its 11.7% shareholding.

Under the agreement, Pfizer will receive $1.88 billion for ​its 11.7% holding, and GSK will get ‍a special dividend ​of $250 million as ​ViiV cancels the U.S. drugmaker’s ‍shares.

GSK will retain its 78.3% majority stake in ViiV Healthcare. The British firm established ViiV Healthcare with ‍Pfizer in 2009, with Shionogi joining as a shareholder in 2012.

The ‍deal ‍streamlines ownership of ​ViiV Healthcare at a ​time ⁠when the company ‌is advancing a pipeline of long-acting injectable HIV treatments and prevention medicines.

(Reporting by Yadarisa Shabong in Bengaluru; Editing by ⁠Rashmi Aich)