Genentech is wholly owned by Roche.

Other2009-presentglobalhigh confidence

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.

Sources

Procedura di infrazione da parte dell'Autorità Antitrust (epicentro.iss.it)
https://www.roche.com/media/releases/med-cor-2025-08-25 (roche.com)
https://www.sec.gov/Archives/edgar/data/0000318771/000095012309002224/y74405exv99waw5wx.htm (sec.gov)

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