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Jim Simons's Power Integrations, Inc. (POWI) position

Not anymore: Jim Simons fully exited POWI 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
206K
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.

POWI price vs Simons's position

Dates
$70$72$74$76← Earlier —10 purchases, 5 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 −206K −100.0% 0 May 14, 2026
Q4 2025 Reduced −14K −6.5% 206K Feb 12, 2026
Q3 2025 Added +119K +118.0% 220K Nov 13, 2025
Q2 2025 Reduced −8K −6.9% 101K Aug 13, 2025
Q1 2025 Added +27K +33.1% 109K May 14, 2025
Q4 2024 Added +26K +47.0% 82K Feb 13, 2025
Q3 2024 New +56K 56K Nov 13, 2024
Q3 2023 New +12K 12K Nov 14, 2023
Q1 2023 Reduced −152K −77.1% 45K May 12, 2023
Q4 2022 Reduced −204K −50.9% 197K Feb 13, 2023
Q3 2022 Added +237K +145.1% 400K Nov 14, 2022
Q2 2022 Added +62K +60.8% 163K Aug 12, 2022
Q1 2022 Reduced −174K −63.2% 102K May 13, 2022
Q4 2021 Added +80K +40.8% 276K Feb 11, 2022
Q3 2021 Added +53K +37.3% 196K Nov 12, 2021
Q2 2021 Added +115K +418.9% 143K Aug 13, 2021
Q1 2021 First covered 28K May 13, 2021
Data through Q1 2026 · filed May 14, 2026
17 grouped rows from 17 quarters

More Simons positions

Common questions

Does Jim Simons own POWI?

Not currently. Jim Simons fully exited POWI 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 Jim Simons buy POWI?

Jim Simons held POWI 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 POWI?

Yes. Jim Simons reduced and then fully exited POWI 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 POWI does Jim Simons own?

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

What price did Jim Simons pay for POWI?

Jim Simons began building the POWI 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.