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Jim Simons's Adaptimmune Therapeutics plc (ADAP) position

Not anymore: Jim Simons fully exited ADAP in Q4 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
4.1M
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.

ADAP price vs Simons'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
Q4 2025 Exited −4.1M −100.0% 0 Feb 12, 2026
Q3 2025 Added +2.2M +115.3% 4.1M Nov 13, 2025
Q2 2025 Added +69K +3.8% 1.9M Aug 13, 2025
Q1 2025 Reduced −713K −28.2% 1.8M May 14, 2025
Q4 2024 Added +870K +52.5% 2.5M Feb 13, 2025
Q3 2024 Reduced −130K −7.3% 1.7M Nov 13, 2024
Q2 2024 Added +395K +28.3% 1.8M Aug 9, 2024
Q1 2024 Added +22K +1.6% 1.4M May 13, 2024
Q4 2023 Added +342K +33.3% 1.4M Feb 13, 2024
Q3 2023 Reduced −479K −31.8% 1.0M Nov 14, 2023
Q2 2023 Added +1.3M +724.5% 1.5M Aug 11, 2023
Q1 2023 Reduced −378K −67.4% 183K May 12, 2023
Q4 2022 Reduced −5K −0.9% 561K Feb 13, 2023
Q3 2022 Added +56K +11.0% 566K Nov 14, 2022
Q2 2022 Reduced −450K −46.9% 510K Aug 12, 2022
Q1 2022 Added +532K +124.4% 960K May 13, 2022
Q4 2021 New +428K 428K Feb 11, 2022
Q2 2021 Added +202K +200.5% 303K Aug 13, 2021
Q1 2021 First covered 101K May 13, 2021
Data through Q4 2025 · filed Feb 12, 2026
19 grouped rows from 19 quarters

More Simons positions

Common questions

Does Jim Simons own ADAP?

Not currently. Jim Simons fully exited ADAP in Q4 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy ADAP?

Jim Simons held ADAP 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 Jim Simons sell ADAP?

Yes. Jim Simons reduced and then fully exited ADAP by Q4 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 ADAP does Jim Simons own?

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

What price did Jim Simons pay for ADAP?

Jim Simons began building the ADAP 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.