GUTS Fractyl Health, Inc.
Fractyl Health, Inc. (GUTS) Institutional Ownership
What the institutions did with GUTS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Nantahala Capital Management, LLC | 22.6M | 27.5% |
| Catalio Capital Management, LP | 6.2M | 7.5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | 7.4% |
| BANK OF AMERICA CORP /DE/ | 6.0M | 7.3% |
| Pale Fire Capital SE | 5.0M | 6.1% |
| General Catalyst Group Management, LLC | 4.9M | 5.9% |
| Deer Management Co. LLC | 4.8M | 5.8% |
| MAVERICK CAPITAL LTD | 4.0M | 4.8% |
| M28 Capital Management LP | 1.9M | 2.3% |
| BlackRock, Inc. | 1.8M | 2.2% |
| Woodline Partners LP | 1.8M | 2.2% |
| JANE STREET GROUP, LLC | 1.7M | 2.1% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 1.6M | 2.0% |
| UBS Group AG | 1.6M | 1.9% |
| CM Management, LLC | 1.4M | 1.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 1.6% |
| Ikarian Capital, LLC | 1.1M | 1.3% |
| MARSHALL WACE, LLP | 1.1M | 1.3% |
| Logos Global Management LP | 1.0M | 1.2% |
| Brevan Howard Capital Management LP | 916.3K | 1.1% |
| 683 Capital Management, LLC | 756.7K | 0.9% |
| VANGUARD FIDUCIARY TRUST CO | 722.1K | 0.9% |
| STATE STREET CORP | 516.0K | 0.6% |
| MORGAN STANLEY | 426.5K | 0.5% |
| Mink Brook Asset Management LLC | 352.7K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Nantahala Capital Management, LLC | Increased | 13.4M | 22.6M | +9.2M |
| 683 Capital Management, LLC | Reduced | 6.7M | 756.7K | -6.0M |
| BANK OF AMERICA CORP /DE/ | Increased | 125.0K | 6.0M | +5.9M |
| JANE STREET GROUP, LLC | Increased | 39.7K | 1.7M | +1.7M |
| Pale Fire Capital SE | Reduced | 5.9M | 5.0M | -917.8K |
| Brevan Howard Capital Management LP | Increased | 232.4K | 916.3K | +684.0K |
| Catalio Capital Management, LP | Increased | 5.5M | 6.2M | +676.9K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 5.5M | 6.1M | +563.9K |
| Burkehill Global Management, LP | Sold Out | 500.0K | 0 | -500.0K |
| Woodline Partners LP | Reduced | 2.2M | 1.8M | -458.1K |
| Mink Brook Asset Management LLC | New | 0 | 352.7K | +352.7K |
| BlackRock, Inc. | Reduced | 2.1M | 1.8M | -338.8K |
| MARSHALL WACE, LLP | Increased | 807.8K | 1.1M | +272.9K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 479.7K | 224.5K | -255.2K |
| Shay Capital LLC | Reduced | 357.9K | 130.2K | -227.6K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Sold Out | 208.9K | 0 | -208.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 176.1K | 15.1K | -161.0K |
| OMERS ADMINISTRATION Corp | Sold Out | 123.9K | 0 | -123.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.4M | 1.3M | -118.9K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 606.2K | 722.1K | +115.9K |
| BARCLAYS PLC | Reduced | 116.0K | 1.9K | -114.2K |
| GOLDMAN SACHS GROUP INC | Increased | 68.4K | 175.9K | +107.4K |
| GSA CAPITAL PARTNERS LLP | Sold Out | 87.5K | 0 | -87.5K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 35.2K | 122.2K | +87.0K |
| MORGAN STANLEY | Reduced | 495.9K | 426.5K | -69.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.