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Ken Griffin's Sigma Lithium Corporation (SGML) position

Yes: as of Q1 2026, Ken Griffin holds 815K shares of SGML worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was reduced by 62.0%. First disclosed Q1 2023.
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Current value
an amount we cannot price
Shares held
815K
% 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.

SGML price vs Griffin's position

Dates
$10$10.2$10.4$10.6← Earlier —8 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 Reduced −1.3M −62.0% 815K May 15, 2026
Q4 2025 Reduced −260K −10.8% 2.1M Feb 17, 2026
Q3 2025 Added +368K +18.1% 2.4M Nov 14, 2025
Q2 2025 Reduced −494K −19.5% 2.0M Aug 14, 2025
Q1 2025 Added +304K +13.6% 2.5M May 15, 2025
Q4 2024 Added +2.1M +1,173.3% 2.2M Feb 14, 2025
Q3 2024 Added +170K +3,684.2% 175K Nov 14, 2024
Q2 2024 Reduced −822K −99.4% 5K Aug 14, 2024
Q1 2024 Added +370K +80.9% 827K May 15, 2024
Q4 2023 Added +105K +29.9% 457K Feb 14, 2024
Q3 2023 Reduced −19K −5.0% 352K Nov 14, 2023
Q2 2023 Added +351K +1,797.0% 370K Aug 14, 2023
Q1 2023 New +20K 20K May 15, 2023
Data through Q1 2026 · filed May 15, 2026
13 grouped rows from 13 quarters

More Griffin positions

Common questions

Does Ken Griffin own SGML?

Yes. As of Q1 2026, Ken Griffin disclosed 815K shares of SGML, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy SGML?

Ken Griffin first disclosed a SGML position in Q1 2023; 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 Ken Griffin sell SGML?

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

How many shares of SGML does Ken Griffin own?

Ken Griffin disclosed 815K shares of SGML as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for SGML?

Ken Griffin began building the SGML 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.