Pharma BD Deal Intelligence

Ono Pharmaceutical Co., Ltd. / Deciphera Pharmaceuticals

2024 · Acquisition/Merger · $2.4B · Complete

CALLED IT — OFF BY 14
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The coverage arc

Apr 29, 2024 Bullish

Deciphera Pharmaceuticals to be acquired by ONO Pharmaceutical for $2.4 billion at $25.60 per share a 74.7 percent premium adding QINLOCK and vimseltinib…

Aug 01, 2024 DCAT Value Chain Insights Neutral

Ono acquired Deciphera for $2.4B for Qinlock (ripretinib) for GI stromal tumors.

Sep 18, 2025 Ono Pharmaceutical (IR) Bullish

Deciphera receives European Commission approval of ROMVIMZA (vimseltinib) for the treatment of tenosynovial giant cell tumor (TGCT), September 17, 2025 -- the…

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Ono Pharmaceutical acquired Deciphera Pharmaceuticals for approximately $2.4 billion ($25.60/share cash, a 74.7% premium), announced April 29, 2024 and closed June 11, 2024 via tender offer, making Deciphera a wholly owned Ono subsidiary. The deal gave Ono its lead commercial asset QINLOCK (ripretinib), a switch-control KIT/PDGFRA inhibitor approved for fourth-line GIST (full-year 2023 net product revenue $159.1M), plus the late-stage candidate vimseltinib, an oral CSF1R inhibitor for tenosynovial giant cell tumor (TGCT), establishing Ono a U.S. and European commercial oncology footprint. The vimseltinib thesis has since been realized: the FDA granted full approval of ROMVIMZA (vimseltinib) for symptomatic TGCT on February 14, 2025 -- the second approved drug from Deciphera's switch-control kinase platform -- followed by European Commission approval on September 17, 2025, where it is the first and only authorized TGCT therapy. The acquisition's growing-portfolio rationale is intact and de-risked, with two approved commercial products across the U.S. and EU.

Key facts

Related deals — scored

DealYearValueOutcome
Ono Pharmaceutical Co., Ltd. / Deciphera Pharmaceuticals (this deal)2024$2.4B69
Ono Pharmaceutical Co., Ltd. / Ionis Pharmaceuticals, Inc.2025$940M
AstraZeneca PLC / Daiichi Sankyo Company, Limited2019$6.9B100
Novartis AG / Endocyte, Inc.2018$2.1B96
Astellas Pharma Inc. / Seagen Inc.2009$4.5B95
Bristol-Myers Squibb Company / Medarex Inc.2009$2.4B92
Servier / Agios Pharmaceuticals (oncology)2020$2.0B91

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