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Jim Simons's Quantum-Si incorporated (QSI) position

Yes: as of Q1 2026, Jim Simons holds 118K shares of QSI worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was opened. First disclosed Q4 2022.
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Current value
an amount we cannot price
Shares held
118K
% of portfolio
0.0%
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.

QSI price vs Simons's position

Dates
$0.815$0.82$0.825$0.83$0.835$0.84← Earlier —7 purchases, 1 sell
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 New +118K 118K May 14, 2026
Q2 2025 Reduced −783K −89.8% 89K Aug 13, 2025
Q1 2025 Added +327K +60.0% 872K May 14, 2025
Q4 2024 Added +503K +1,211.4% 545K Feb 13, 2025
Q3 2024 New +42K 42K Nov 13, 2024
Q2 2023 Added +110K +97.8% 223K Aug 11, 2023
Q1 2023 Added +75K +200.5% 113K May 12, 2023
Q4 2022 New +38K 38K Feb 13, 2023
Data through Q1 2026 · filed May 14, 2026
8 grouped rows from 8 quarters

More Simons positions

Common questions

Does Jim Simons own QSI?

Yes. As of Q1 2026, Jim Simons disclosed 118K shares of QSI, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy QSI?

Jim Simons first disclosed a QSI position in Q4 2022; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell QSI?

The quarter-by-quarter table above shows each sale and reduction Jim Simons disclosed in QSI. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of QSI does Jim Simons own?

Jim Simons disclosed 118K shares of QSI as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for QSI?

Jim Simons began building the QSI 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.