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Alpine Immune Sciences Shares Rally After Vertex Agrees to Acquire Co.

By Stephen Nakrosis


Shares of Alpine Immune Sciences were trading sharply higher in Wednesday's after-hours market, following news Vertex Pharmaceuticals agreed to acquire the company in a $4.9 billion deal.

Alpine Immune shares were trading 37% higher in the late-trading market, at $64.34, just under the $65 a share offer from Vertex. The shares ended the day's regular trading with a 21% gain, closing at $47.04.

Earlier Wednesday, Alpine Immune shares hit their highest level since 2015 at $47.84 per share.

After the bell, shares of Vertex Pharmaceuticals has lost just over 1%, to trade at $393.24. They ended the day's regular session with a loss of 1.7%, to close at $397.58.

The deal was unanimously approved by the boards of both companies, and is expected to close later this quarter.


Write to Stephen Nakrosis at


(END) Dow Jones Newswires

April 10, 2024 17:40 ET (21:40 GMT)

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