Fractyl Health, Inc.
An American medical company treating obesity and type 2 diabetes at their root. Its lead procedure, Revita, uses a heat-based endoscopic device to resurface the lining of the small intestine, helping people keep weight off after stopping GLP-1 drugs; its Rejuva platform delivers genes that reprogram insulin-making pancreatic cells. Founded in 2010 as MedCatalyst, the firm took its name from "fractal," echoing the repeating folds inside the intestine, and trades on Nasdaq as "GUTS."
Bought 333.3K
Bought 374.2K
Bought 333.3K
Bought 466.7K
Granted 328.8K · Bought 35.4K · Sold 208.4K
Granted 326.6K · Sold 173.0K
Bought 84.6K
Bought 35.0K
Bought 31.0K
Bought 20.0K
Bought 8.6K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Mithril II LP +5 co-filers10% owner · 3 transactions | — | 7.33Mas of Feb 2024 | — | 333.3K | — |
| Royan AjayDirector · 5 transactions | — | 6.45M | — | 374.2K | — |
| General Catalyst Group V LP +3 co-filers10% owner · 2 transactions | — | 4.88Mas of Feb 2024 | — | — | — |
| BVP VII Special Opportunity Fund LP +4 co-filers10% owner · 1 transaction | — | 4.77Mas of Feb 2024 | — | — | — |
| HCC Manager LLC +1 co-filer10% owner · 3 transactions | — | 4.67Mas of Feb 2024 | — | 333.3K | — |
| Elia Marc +1 co-filerDirector · 2 transactions | — | 1.86Mas of Feb 2024 | — | 466.7K | — |
| American International Group, Inc.10% owner · 4 transactions | — | 1.34Mas of Feb 2024 | — | — | — |
| Rajagopalan HarithChief Executive Officer, Director · 10 transactions | — | 1.14M | 328.8K | 35.4K | 208.4K |
| Deerfield Management Company, L.P. (Series C) +3 co-filers10% owner, Possible Members of 10% Group · 2 transactions | — | 834.3Kas of Feb 2024 | — | — | — |
| Corebridge DECO II, LLC10% owner · 1 transaction | — | 673.4Kas of Feb 2024 | — | — | — |
| Caplan Jay DavidPresident, Chief Product Off. · 10 transactions | — | 631.2Kas of Feb 2025 | 326.6K | — | 173.0K |
| American Home Assurance Co10% owner · 1 transaction | — | 283.9Kas of Feb 2024 | — | — | — |
| Meanwell CliveDirector · 1 transaction | — | 277.9Kas of Feb 2024 | — | — | — |
| Bradley WilliamDirector · 2 transactions | — | 84.6K | — | 84.6K | — |
| Sheffield IanDirector · 1 transaction | — | 35.0K | — | 35.0K | — |
| Barnes Kelly AnnDirector · 1 transaction | — | 31.0Kas of Mar 2025 | — | 31.0K | — |
| Smith Weber LaraChief Financial Officer · 1 transaction | — | 20.0K | — | 20.0K | — |
| Schulman Amy WDirector · 1 transaction | — | 8.6Kas of Mar 2025 | — | 8.6K | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: +1.34M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.