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Ken Griffin's Fractyl Health, Inc. Common Stock (GUTS) position

Yes: as of Q1 2026, Ken Griffin holds 48K shares of GUTS worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was reduced by 79.0%. First disclosed Q1 2024.
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Current value
an amount we cannot price
Shares held
48K
% 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.

GUTS price vs Griffin's position

Dates
$0.76$0.78$0.8$0.82← Earlier —3 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 −181K −79.0% 48K May 15, 2026
Q4 2025 Reduced −1.6M −87.2% 229K Feb 17, 2026
Q3 2025 New +1.8M 1.8M Nov 14, 2025
Q1 2025 Reduced −632K −86.3% 100K May 15, 2025
Q4 2024 Reduced −91K −11.0% 732K Feb 14, 2025
Q3 2024 Added +33K +4.1% 823K Nov 14, 2024
Q2 2024 Reduced −914K −53.6% 790K Aug 14, 2024
Q1 2024 New +1.7M 1.7M May 15, 2024
Data through Q1 2026 · filed May 15, 2026
8 grouped rows from 8 quarters

More Griffin positions

Common questions

Does Ken Griffin own GUTS?

Yes. As of Q1 2026, Ken Griffin disclosed 48K shares of GUTS, 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 GUTS?

Ken Griffin first disclosed a GUTS position in Q1 2024; 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 GUTS?

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

How many shares of GUTS does Ken Griffin own?

Ken Griffin disclosed 48K shares of GUTS 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 GUTS?

Ken Griffin began building the GUTS 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.