Save your place

Sign in to WhoBought

Please try again later.

Ken Griffin's Inozyme Pharma, Inc. (INZY) position

Not anymore: Ken Griffin fully exited INZY in Q3 2025. The position peaked at an amount we cannot price in Q1 2021.
View full portfolio →
Value at exit
an amount we cannot price
Shares at exit
35K
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.

INZY 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 −35K −100.0% 0 Nov 14, 2025
Q2 2025 Reduced −145K −80.5% 35K Aug 14, 2025
Q1 2025 Reduced −437K −70.8% 180K May 15, 2025
Q4 2024 Added +567K +1,144.8% 617K Feb 14, 2025
Q3 2024 Added +24K +91.4% 50K Nov 14, 2024
Q2 2024 Reduced −67K −72.1% 26K Aug 14, 2024
Q1 2024 Reduced −67K −41.9% 93K May 15, 2024
Q4 2023 Added +25K +19.0% 159K Feb 14, 2024
Q3 2023 Reduced −12K −8.0% 134K Nov 14, 2023
Q2 2023 Reduced −648K −81.7% 146K Aug 14, 2023
Q1 2023 New +794K 794K May 15, 2023
Q3 2022 Reduced −10K −8.4% 111K Nov 14, 2022
Q2 2022 Added +23K +22.9% 121K Aug 15, 2022
Q1 2022 Reduced −9K −8.1% 98K May 16, 2022
Q4 2021 Added +13K +13.2% 107K Feb 14, 2022
Q3 2021 Reduced −77K −44.8% 94K Nov 15, 2021
Q2 2021 Reduced −69K −28.8% 171K Aug 16, 2021
Q1 2021 First covered 240K May 21, 2021
Data through Q3 2025 · filed Nov 14, 2025
18 grouped rows from 18 quarters

More Griffin positions

Common questions

Does Ken Griffin own INZY?

Not currently. Ken Griffin fully exited INZY 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 INZY?

Ken Griffin held INZY 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 INZY?

Yes. Ken Griffin reduced and then fully exited INZY 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 INZY does Ken Griffin own?

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

What price did Ken Griffin pay for INZY?

Ken Griffin began building the INZY 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.