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Ken Griffin's Sage Therapeutics, Inc. (SAGE) position

Not anymore: Ken Griffin fully exited SAGE in Q3 2025. The position peaked at an amount we cannot price in Q1 2021.
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Value at exit
an amount we cannot price
Shares at exit
178K
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

SAGE price vs Griffin's position

Dates
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q3 2025 Exited −178K −100.0% 0 Nov 14, 2025
Q2 2025 Reduced −871K −83.0% 178K Aug 14, 2025
Q1 2025 Added +965K +1,144.3% 1.0M May 15, 2025
Q4 2024 Reduced −525K −86.2% 84K Feb 14, 2025
Q3 2024 Added +142K +30.4% 610K Nov 14, 2024
Q2 2024 Added +307K +191.2% 468K Aug 14, 2024
Q1 2024 Reduced −273K −62.9% 161K May 15, 2024
Q4 2023 Added +53K +13.9% 433K Feb 14, 2024
Q3 2023 Added +156K +69.9% 380K Nov 14, 2023
Q2 2023 Added +168K +303.1% 224K Aug 14, 2023
Q1 2023 Added +15K +38.6% 56K May 15, 2023
Q4 2022 Reduced −123K −75.4% 40K Feb 14, 2023
Q3 2022 Added +116K +249.3% 163K Nov 14, 2022
Q2 2022 Reduced −59K −55.9% 47K Aug 15, 2022
Q1 2022 Reduced −992K −90.3% 106K May 16, 2022
Q4 2021 Added +428K +63.9% 1.1M Feb 14, 2022
Q3 2021 Added +24K +3.7% 670K Nov 15, 2021
Q2 2021 Added +615K +1,982.0% 646K Aug 16, 2021
Q1 2021 First covered 31K May 21, 2021
Data through Q3 2025 · filed Nov 14, 2025
19 grouped rows from 19 quarters

More Griffin positions

Common questions

Does Ken Griffin own SAGE?

Not currently. Ken Griffin fully exited SAGE in Q3 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy SAGE?

Ken Griffin held SAGE since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell SAGE?

Yes. Ken Griffin reduced and then fully exited SAGE by Q3 2025; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of SAGE does Ken Griffin own?

None as of the latest filing: Ken Griffin has exited SAGE. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for SAGE?

Ken Griffin began building the SAGE position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.