As of October 27, 2026, Fractyl Health, Inc. is a publicly traded company (Nasdaq: GUTS); its largest reported holder is Nantahala Capital, with 9.99% on Schedule 13G/A of May 15, 2026, then Catalio Capital Management, LP (5.6%). The largest insider holding is Ajay Royan, a director, with 1,292,801 shares (0.81% of shares outstanding), per Form 4 of June 15, 2026 (Schedule 13G/A, May 15, 2026).
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Is Fractyl Health, Inc. a real, registered company?
- Fractyl Health, Inc. files with the SEC under CIK 1572616 (its SEC filings).
- Its shares are listed under the ticker GUTS on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Burlington, Massachusetts, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under FRACTYL HEALTH, INC. in our court records and SEC 8-K records (as of 2026-10-27).
- Layoffs: 1 exit or restructuring plan reported on Form 8-K, Item 2.05 (latest filed 2026-10-22).
- Leadership changes: the latest reported is Harith Rajagopalan, Chief Executive Officer (Form 8-K filed 2026-10-22). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Catalio Capital Management, LP (filed 2026-10-13).
Who are Fractyl Health, Inc.'s owners and officers?
Fractyl Health, Inc.: incorporated in Delaware; business address in Burlington, Massachusetts; industry Surgical & Medical Instruments & Apparatus (Form D, 2026-10-22).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-10-13 | Catalio Capital Management, LP | 5.6% |
| Schedule 13G/A, 2026-05-15 | Nantahala Capital Management, LLC | 9.99% |
| Schedule 13G/A, 2026-05-15 | 683 Capital Management, LLC | 4.81% |
| Schedule 13G/A, 2026-05-13 | Silverarc Capital Management, LLC | 2.3% |
| Schedule 13G/A, 2026-02-17 | Alyeska Investment Group, L.P. | 4.97% |
| Schedule 13G/A, 2026-02-12 | Ajay Royan | 4.7% |
| Schedule 13G/A, 2026-02-04 | Cvf, LLC | 3.4% |
| Schedule 13G/A, 2025-11-14 | Maverick Capital, LTD. | 3.1% |
| Schedule 13G, 2025-11-14 | Nantahala Capital Management, LLC | 9.99% |
| Schedule 13G, 2025-11-14 | Alyeska Investment Group, L.P. | 9.7% |
| Schedule 13G, 2025-11-14 | Silverarc Capital Management, LLC | 8.02% |
| Schedule 13G, 2025-10-14 | 683 Capital Management, LLC | 5.33% |
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What the Full Report on Fractyl Health, Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-10-22 | Harith Rajagopalan | Chief Executive Officer | appointed |
Which insiders own Fractyl Health, Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 1,292,801 shares (0.81% of shares outstanding), 40,901 held directly and 1,251,900 indirectly (Form 4, 2026-06-15).
- , the chief executive and a director: 1,143,537 shares (0.72% of shares outstanding), 540,557 held directly and 602,980 indirectly (Form 4, 2026-06-11).
- , the president and chief product officer.: 631,160 shares (0.40% of shares outstanding), 153,544 held directly and 477,616 indirectly (Form 4, 2025-02-03).
- , a director: 149,138 shares (0.09% of shares outstanding) (Form 4, 2026-09-16).
- , a director: 35,000 shares (0.02% of shares outstanding) (Form 4, 2026-06-11).
Shares outstanding: 159,179,848 as of 2026-08-04, from the company's latest SEC cover page.
How much has Fractyl Health, Inc. raised?
No fundraising or offering filing from Fractyl Health, Inc. is on file with us.
Red flags found
1 exit or restructuring plan on Form 8-K (latest Form 8-K, 2026-10-22).
Keep reading
More on Fractyl Health, Inc. and the records around it.
Fractyl Health, Inc. elsewhere on the record
- 5%+ stake filings Oct 2026
Companies that share a holder
- Mithril LP also filed stake reports on 1 other company: BlackSky Technology, Inc. (Aug 2026)
- Maverick Capital, Ltd. also filed stake reports on 5 other companies: Infleqtion, Inc. (May 2026), Invivyd, Inc. (Feb 2026), Peabody Energy Corporation (Feb 2026)
- SilverArc Capital Management, LLC also filed stake reports on 8 other companies: Cellectar Biosciences Inc (Aug 2026), ELUTIA INC. (Aug 2026), TELA BIO, INC. (Aug 2026)
Related pages
LayoffsLeadership changes5%+ holders
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