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Jim Simons's REGENXBIO Inc. (RGNX) position

Yes: as of Q1 2026, Jim Simons holds 305K shares of RGNX worth an amount we cannot price (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
an amount we cannot price
Shares held
305K
% 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.

RGNX price vs Simons's position

1Y 3Y 5Y MAX
Dates
$9.5$10$10.5← Earlier —7 purchases, 2 sells
Average closing price · filing quarter
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Price range · filing quarter
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −28K – −8.3% 305K May 14, 2026
Q4 2025 Added +24K – +7.6% 333K Feb 12, 2026
Q3 2025 Reduced −426K – −57.9% 309K Nov 13, 2025
Q2 2025 Added +438K – +147.7% 735K Aug 13, 2025
Q1 2025 Added +26K – +9.4% 297K May 14, 2025
Q4 2024 New +271K – – 271K Feb 13, 2025
Q1 2024 Added +78K – +397.4% 98K May 13, 2024
Q4 2023 New +20K – – 20K Feb 13, 2024
Q2 2023 New +28K – – 28K Aug 11, 2023
Q1 2021 First covered – – – 66K May 13, 2021
Data through Q1 2026 · filed May 14, 2026
10 grouped rows from 10 quarters

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Common questions

Does Jim Simons own RGNX?

Yes. As of Q1 2026, Jim Simons disclosed 305K shares of RGNX, 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 RGNX?

Jim Simons held RGNX 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 RGNX?

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

How many shares of RGNX does Jim Simons own?

Jim Simons disclosed 305K shares of RGNX 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 RGNX?

Jim Simons began building the RGNX 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.