% of shares outstanding8.7%Filing dateFeb 14, 2024
Rtw Investments, LP
5.2M
8.7%
Feb 14, 2024
FMR LLC5.3M
% of shares outstanding8.6%Filing dateNov 12, 2024
FMR LLC
5.3M
8.6%
Nov 12, 2024
BlackRock Inc.4.7M
% of shares outstanding7.8%Filing dateJan 26, 2024
BlackRock Inc.
4.7M
7.8%
Jan 26, 2024
Bb Biotech AG4.5M
% of shares outstanding7.3%Filing dateNov 14, 2024
Bb Biotech AG
4.5M
7.3%
Nov 14, 2024
State Street Corp2.9M
% of shares outstanding4.8%Filing dateOct 18, 2024
State Street Corp
2.9M
4.8%
Oct 18, 2024
Wellington Management Group LLP40K
% of shares outstanding0.1%Filing dateJun 6, 2024
Wellington Management Group LLP
40K
0.1%
Jun 6, 2024
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Sage Therapeutics, Inc. (SAGE) ownership FAQ
Who owns SAGE?
1 reporting institutions disclosed SAGE position changes in the Q1 2026 snapshot.
How is institutional activity calculated?
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
What are activist and large shareholder filings?
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Where does this data come from?
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Why are ownership reports delayed?
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
How are missing table values shown?
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.