Servier to Buy Day One for $2.5 Billion, Expanding Oncology Portfolio

Published
Score
3

Why it matters

Servier announced on March 6, 2026, a definitive agreement to acquire Day One Biopharmaceuticals for $2.5 billion in cash at $21.50 per share, a 68% premium over Day One's March 5 closing price and 86% over its one-month VWAP. The deal involves a tender offer followed by a second-step merger, funded by Servier's existing cash, and is expected to close in Q2 2026 pending U.S. antitrust clearance, majority shareholder approval, and customary conditions. Day One's board unanimously recommends acceptance.[1][3][6][8]

Key players are Servier, a France-based independent pharmaceutical group focused on oncology, and Day One Biopharmaceuticals (Nasdaq: DAWN), a U.S. biotech founded in 2018 specializing in targeted therapies for pediatric and adult cancers, including its commercialized drug Ojemda (tovorafenib) for pediatric low-grade glioma. Servier President Olivier Laureau highlighted the deal's role in expanding rare oncology expertise, while Day One CEO Jeremy Bender called Servier the "ideal home" for its pipeline amid high unmet needs in rare cancers like brain tumors.[1][2][3][4][7]

The acquisition builds on Servier's 2030 strategy for innovative oncology treatments and Day One's post-IPO (2021 at $16/share) progress in glioma therapies during a biotech downturn. It adds Day One's early- to phase 3 assets targeting rare pediatric and adult cancers to Servier's portfolio, including drugs like Tibsovo and Voranigo.[2][3][4][7][8]

Newsworthy for its $2.5B scale in a premium buyout, signaling biotech M&A momentum, Servier's rare oncology leadership push, and accelerated access to Day One's promising glioma programs for patients with limited options. Announced amid Day One's 20% pre-deal share drop, it delivers strong shareholder value.[1][2][6][7]

mail

Get notified about new Antitrust developments

Primary sources. No fluff. Straight to your inbox.

See more entries tagged Antitrust.