Pharma BD Deal Intelligence

Supernus Pharmaceuticals, Inc. / Sage Therapeutics, Inc.

2025 · Acquisition/Merger · $795M · Complete

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Jun 16, 2025 BioSpace Neutral

Sage Therapeutics agreed to be acquired by Supernus Pharmaceuticals for up to $795 million. Stifel analysts characterized the deal as feels like an…

Jun 30, 2025 BioSpace Bearish

Not two weeks after being acquired, Sage Therapeutics has let go of all of its remaining workforce - 338 employees. The layoffs will take effect on Aug. 22 and…

Apr 01, 2026 Supernus Q1 2026 8-K earnings release Bullish

Q1 2026 total revenue $207.7M (+39% YoY); Zurzuvae collaboration revenue $27.6M, 85% of prescriptions from repeat prescribers; Zurzuvae still in launch mode.

Source summaries from our enrichment pipeline; follow links for originals.

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Supernus acquired Sage Therapeutics for $8.50/share cash (~$561M upfront) plus contingent value rights (CVRs) worth up to $3.50/share (~$234M), a total of up to ~$795M. The deal closed July 31, 2025, adding Zurzuvae (zuranolone), the first FDA-approved oral therapy for postpartum depression, to Supernus's neuropsychiatry portfolio. The CVRs pay $1.00/share each on U.S. Zurzuvae net sales reaching $250M (by 2027), $300M (by 2028) and $375M (by 2030), plus $0.50/share on first commercial sale in Japan for major depressive disorder by June 30, 2026. Post-close, the Japan CVR moved into play: partner Shionogi received Japanese approval for Zurzuvae in MDD on December 22, 2025, with first commercial sale pending. Zurzuvae continued to ramp under Supernus, with collaboration revenue of $53.0M in 2025 post-close ($32.8M in Q4 2025, Q4 U.S. net sales up ~187% YoY) and $27.6M in Q1 2026; Supernus guided to $840-870M total 2026 revenue and expects the acquisition to be accretive in 2026.

Key facts

Related deals — scored

DealYearValueOutcome
Supernus Pharmaceuticals, Inc. / Sage Therapeutics, Inc. (this deal)2025$795M
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Cephalon Inc. / Laboratoire L. Lafon S.A. (Group Lafon)2000$450M89
Teva Pharmaceutical Industries Ltd. / Auspex Pharmaceuticals2015$3.5B86
Teva Pharmaceutical Industries Ltd. / Biogal Pharmaceutical199582
Novartis AG / PTC Therapeutics Inc.2024$2.9B80

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