Genentech is wholly owned by Roche.
Notes on verification
Confirmed by Roche corporate communications, SEC filings documenting the 2009 merger completion, and independent tertiary sources (Wikipedia). Multiple independent, high-quality sources corroborate. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.925 clusters=2 claim_tier=everyday | kind=empirical eligibility=high]
Sources
- Procedura di infrazione da parte dell'Autorità Antitrust (seed:health_and_medicine)
- https://www.roche.com/media/releases/med-cor-2025-08-25 (corroboration)
- https://www.sec.gov/Archives/edgar/data/0000318771/000095012309002224/y74405exv99waw5wx.htm (corroboration)