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Jim Simons's Perma-Fix Environmental Services, Inc. (PESI) position

Not anymore: Jim Simons fully exited PESI in Q2 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
11K
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.

PESI price vs Simons's position

Dates
$15.5$16$16.5$17$17.5← Earlier —4 purchases, 12 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
Q2 2025 Exited −11K −100.0% 0 Aug 13, 2025
Q1 2025 Reduced −23K −67.0% 11K May 14, 2025
Q4 2024 Reduced −65K −65.1% 35K Feb 13, 2025
Q3 2024 Reduced −27K −21.4% 100K Nov 13, 2024
Q2 2024 Reduced −22K −14.7% 127K Aug 9, 2024
Q1 2024 Reduced −19K −11.4% 149K May 13, 2024
Q4 2023 Added +40K +30.8% 168K Feb 13, 2024
Q3 2023 Added +4K +3.4% 128K Nov 14, 2023
Q2 2023 Added +12K +11.2% 124K Aug 11, 2023
Q1 2023 Reduced −14K −11.0% 112K May 12, 2023
Q4 2022 Added +9K +7.8% 125K Feb 13, 2023
Q3 2022 Reduced −19K −14.1% 116K Nov 14, 2022
Q2 2022 Reduced −8K −5.7% 135K Aug 12, 2022
Q1 2022 Reduced −12K −7.7% 144K May 13, 2022
Q4 2021 Reduced −10K −5.8% 156K Feb 11, 2022
Q3 2021 Reduced −35K −17.6% 165K Nov 12, 2021
Q2 2021 Reduced −15K −7.1% 200K Aug 13, 2021
Q1 2021 First covered 216K May 13, 2021
Data through Q2 2025 · filed Aug 13, 2025
18 grouped rows from 18 quarters

More Simons positions

Common questions

Does Jim Simons own PESI?

Not currently. Jim Simons fully exited PESI in Q2 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 PESI?

Jim Simons held PESI 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 PESI?

Yes. Jim Simons reduced and then fully exited PESI by Q2 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 PESI does Jim Simons own?

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

What price did Jim Simons pay for PESI?

Jim Simons began building the PESI 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.