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Ken Griffin's Personalis, Inc. (PSNL) position

Not anymore: Ken Griffin fully exited PSNL in Q1 2026. 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
92K
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.

PSNL price vs Griffin's position

Dates
$10$12$14$16← Earlier —7 purchases, 9 sells
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
Q1 2026 Exited −92K −100.0% 0 May 15, 2026
Q4 2025 New +92K 92K Feb 17, 2026
Q4 2024 Added +64K +183.0% 99K Feb 14, 2025
Q3 2024 Reduced −320K −90.2% 35K Nov 14, 2024
Q2 2024 Reduced −152K −30.0% 355K Aug 14, 2024
Q1 2024 Added +75K +17.4% 508K May 15, 2024
Q4 2023 Added +310K +253.3% 432K Feb 14, 2024
Q3 2023 Reduced −43K −25.9% 122K Nov 14, 2023
Q2 2023 Reduced −54K −24.6% 165K Aug 14, 2023
Q1 2023 Reduced −17K −7.3% 219K May 15, 2023
Q4 2022 Added +28K +13.4% 236K Feb 14, 2023
Q3 2022 Reduced −254K −55.0% 208K Nov 14, 2022
Q2 2022 Added +288K +165.7% 462K Aug 15, 2022
Q1 2022 Added +20K +12.7% 174K May 16, 2022
Q4 2021 Reduced −79K −33.7% 155K Feb 14, 2022
Q3 2021 Reduced −20K −7.9% 233K Nov 15, 2021
Q2 2021 Reduced −93K −26.9% 253K Aug 16, 2021
Q1 2021 First covered 346K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
18 grouped rows from 18 quarters

More Griffin positions

Common questions

Does Ken Griffin own PSNL?

Not currently. Ken Griffin fully exited PSNL in Q1 2026, 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 PSNL?

Ken Griffin held PSNL 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 PSNL?

Yes. Ken Griffin reduced and then fully exited PSNL by Q1 2026; 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 PSNL does Ken Griffin own?

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

What price did Ken Griffin pay for PSNL?

Ken Griffin began building the PSNL 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.