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Jim Simons's SIGA Technologies, Inc. (SIGA) position

Yes: as of Q1 2026, Jim Simons holds 475K shares of SIGA 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
475K
% 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.

SIGA price vs Simons's position

Dates
$3$3.2$3.4$3.6← Earlier —10 purchases, 9 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 Added +97K +25.6% 475K May 14, 2026
Q4 2025 Added +70K +22.6% 378K Feb 12, 2026
Q3 2025 Reduced −290K −48.5% 308K Nov 13, 2025
Q2 2025 Reduced −29K −4.6% 599K Aug 13, 2025
Q1 2025 Added +210K +50.3% 628K May 14, 2025
Q4 2024 Added +294K +237.7% 417K Feb 13, 2025
Q3 2024 Added +31K +33.0% 124K Nov 13, 2024
Q2 2024 Added +74K +404.1% 93K Aug 9, 2024
Q1 2024 New +18K 18K May 13, 2024
Q3 2023 Reduced −37K −65.4% 19K Nov 14, 2023
Q2 2023 Reduced −648K −92.0% 56K Aug 11, 2023
Q1 2023 Reduced −344K −32.8% 705K May 12, 2023
Q4 2022 Reduced −1.3M −55.5% 1.0M Feb 13, 2023
Q3 2022 Added +1.7M +269.1% 2.4M Nov 14, 2022
Q2 2022 Reduced −48K −7.0% 638K Aug 12, 2022
Q1 2022 Reduced −208K −23.3% 685K May 13, 2022
Q4 2021 Added +277K +44.9% 894K Feb 11, 2022
Q3 2021 Reduced −415K −40.2% 617K Nov 12, 2021
Q2 2021 Added +265K +34.5% 1.0M Aug 13, 2021
Q1 2021 First covered 767K May 13, 2021
Data through Q1 2026 · filed May 14, 2026
20 grouped rows from 20 quarters

More Simons positions

Common questions

Does Jim Simons own SIGA?

Yes. As of Q1 2026, Jim Simons disclosed 475K shares of SIGA, 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 SIGA?

Jim Simons held SIGA 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 SIGA?

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

How many shares of SIGA does Jim Simons own?

Jim Simons disclosed 475K shares of SIGA 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 SIGA?

Jim Simons began building the SIGA 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.