80 institutions reported holding $285.9M of Q32 (QTTB) in SEC 13F filings for 2026-06-30. Largest institutional holders: ORBIMED ADVISORS LLC ($52.6M), Boxer Capital Management, LLC ($40.1M), Atlas Venture Life Science Advisors, LLC ($34.6M), BVF INC/IL ($29.9M), RA CAPITAL MANAGEMENT, L.P. ($29.7M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30