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Jim Simons's Syndax Pharmaceuticals, Inc. (SNDX) position

Yes: as of Q1 2026, Jim Simons holds 498K shares of SNDX worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was reduced by 8.6%. First disclosed Q1 2022.
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Current value
an amount we cannot price
Shares held
498K
% 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.

SNDX price vs Simons's position

Dates
$20.5$21$21.5$22$22.5$23← Earlier —9 purchases, 2 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 Reduced −47K −8.6% 498K May 14, 2026
Q4 2025 Reduced −316K −36.7% 545K Feb 12, 2026
Q3 2025 Added +23K +2.7% 860K Nov 13, 2025
Q2 2025 Added +156K +22.9% 838K Aug 13, 2025
Q1 2025 Added +462 +0.1% 681K May 14, 2025
Q4 2024 New +681K 681K Feb 13, 2025
Q2 2024 Added +135K +170.9% 214K Aug 9, 2024
Q1 2024 New +79K 79K May 13, 2024
Q3 2023 New +218K 218K Nov 14, 2023
Q4 2022 New +81K 81K Feb 13, 2023
Q1 2022 New +182K 182K May 13, 2022
Data through Q1 2026 · filed May 14, 2026
11 grouped rows from 11 quarters

More Simons positions

Common questions

Does Jim Simons own SNDX?

Yes. As of Q1 2026, Jim Simons disclosed 498K shares of SNDX, 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 SNDX?

Jim Simons first disclosed a SNDX position in Q1 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 SNDX?

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

How many shares of SNDX does Jim Simons own?

Jim Simons disclosed 498K shares of SNDX 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 SNDX?

Jim Simons began building the SNDX 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.