Delisting risk
GUTS · NASDAQ · Biotechnology

Fractyl Health (GUTS)

Develops clinical-stage therapies for obesity and type 2 diabetes through the gut and pancreas.

$0.7077
Pre-market−0.00 (−0.03%)
At close$0.7079(−0.03%)

Breakdown13F · 13D/G · Form 4

Institutions83 holders · as of Mar 31, 202645.24%72.01M shares
Insiders9 holders · as of Jun 15, 20265.09%8.10M shares
Otherremainder49.67%79.06M shares

159.18M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Nantahala Capital Management, LLCInstitution
8.40%13.36M13Fas of Mar 31, 2026
683 Capital Management, LLCInstitution
4.23%6.73M13Fas of Mar 31, 2026
Ajay RoyanInsiderdirector
4.05%6.45MForm 4filed Jun 15, 2026
Pale Fire Capital SEInstitution
3.72%5.92M13Fas of Mar 31, 2026
Vanguard Capital Management LLCInstitution
3.48%5.53M13Fas of Mar 31, 2026
Catalio Capital Management, LPInstitution
3.45%5.49M13Fas of Mar 31, 2026
General Catalyst Group Management, LLCInstitution
3.07%4.88M13Fas of Mar 31, 2026
Deer Management Co. LLCInstitution
3.00%4.77M13Fas of Mar 31, 2026
Maverick Capital LtdInstitution
2.50%3.97M13Fas of Mar 31, 2026
Woodline Partners LPInstitution
1.41%2.24M13Fas of Mar 31, 2026
BlackRock, Inc.Institution
1.34%2.14M13Fas of Mar 31, 2026
M28 Capital Management LPInstitution
1.17%1.86M13Fas of Mar 31, 2026
Silverarc Capital Management, LLCInstitution
1.07%1.70M13Fas of Mar 31, 2026
UBS Group AGInstitution
1.02%1.62M13Fas of Mar 31, 2026
Geode Capital Management, LLCInstitution
0.90%1.44M13Fas of Mar 31, 2026
CM Management, LLCInstitution
0.88%1.40M13Fas of Mar 31, 2026
Ikarian Capital, LLCInstitution
0.69%1.10M13Fas of Mar 31, 2026
Logos Global Management LPInstitution
0.63%1.00M13Fas of Mar 31, 2026
Harith RajagopalanInsiderdirector, officer: Chief Executive Officer
0.52%832,728Form 4filed Jun 11, 2026
Marshall Wace, LLPInstitution
0.51%807,79613Fas of Mar 31, 2026
Jay David CaplanInsiderofficer: President, Chief Product Off.
0.40%631,160Form 4filed Feb 3, 2025
Vanguard Fiduciary Trust CoInstitution
0.38%606,18513Fas of Mar 31, 2026
Burkehill Global Management, LPInstitution
0.31%500,00013Fas of Mar 31, 2026
Morgan StanleyInstitution
0.31%495,90113Fas of Mar 31, 2026
Two Sigma Investments, LPInstitution
0.30%479,73713Fas of Mar 31, 2026

13F — a manager's quarterly holdings · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

83 holders · 72.01M shares · 18 new positions · 32 increased · 27 reduced · 33 closed

HolderShares% outstandingChg q/qFiled
Nantahala Capital Management, LLC13.36M8.40%+2.52MMay 15, 2026
683 Capital Management, LLC6.73M4.23%+679.6KMay 15, 2026
Pale Fire Capital SE5.92M3.72%+2.71MMay 14, 2026
Vanguard Capital Management LLC5.53M3.48%+5.53MnewMay 15, 2026
Catalio Capital Management, LP5.49M3.45%0May 15, 2026
General Catalyst Group Management, LLC4.88M3.07%0May 15, 2026
Deer Management Co. LLC4.77M3.00%0May 15, 2026
Maverick Capital Ltd3.97M2.50%−273.7KMay 15, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Peter Thielincl. Mithril LP, Mithril II LP +4 more13.40%6.41M13GNov 13, 2024
Nantahala Capital Management, LLC9.99%16.12M13GMay 15, 2026
Maverick Capital Management, LLCincl. Lee S. Ainslie III, Maverick Capital, Ltd.8.90%4.25M13GNov 14, 2024
BVP VII Special Opportunity Fund L.P.5.40%2.58M13GFeb 14, 2025

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Jun 12, 2026
Ajay Royandirector
Purchase23,000$0.852040,901
Jun 10, 2026
Harith Rajagopalandirector, officer: Chief Executive Officer
Purchase25,000$0.7301540,557
Jun 10, 2026
Ian Sheffielddirector
Purchase35,000$0.729435,000
Jun 10, 2026
William Bradleydirector
Purchase68,493$0.734884,622
Jun 8, 2026
Weber Lara Smithofficer: Chief Financial Officer
Purchase20,000$0.685420,000
Dec 4, 2025
Harith Rajagopalandirector, officer: Chief Executive Officer
Purchase10,416$1.92501,745

CongressHouse and Senate disclosures

Not reported.