Who owns Fractyl Health, Inc.?
Institutional ownership of GUTS from SEC Form 13F filings across 54 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
54
13F holders
$26.5M
value, 2026 filers
21.2%
of shares outstanding (33.5M sh)
9
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of GUTS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Catalio Capital Management, LP | 6.2M | $4.9M | 0.9% | 3.9% | +12.3% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | $4.8M | 0.0% | 3.9% | -44.9% |
| 3 | BANK OF AMERICA CORP /DE/ | 6.0M | $4.8M | 0.0% | 3.8% | +4727.7% |
| 4 | BlackRock, Inc. | 1.8M | $1.4M | 0.0% | 1.1% | -15.8% |
| 5 | Woodline Partners LP | 1.8M | $1.4M | 0.0% | 1.1% | -60.2% |
| 6 | JANE STREET GROUP, LLC | 1.7M | $1.4M | 0.0% | 1.1% | +4260.8% |
| 7 | SILVERARC CAPITAL MANAGEMENT, LLC | 1.6M | $1.3M | 0.1% | 1% | -3.7% |
| 8 | UBS Group AG | 1.6M | $1.3M | 0.0% | 1% | -2.6% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $1.0M | 0.0% | 0.8% | -8.3% |
| 10 | MARSHALL WACE, LLP | 1.1M | $853,726 | 0.0% | 0.7% | +33.8% |
| 11 | Brevan Howard Capital Management LP | 916,321 | $719,266 | 0.0% | 0.6% | +294.3% |
| 12 | VANGUARD FIDUCIARY TRUST CO | 722,132 | $573,373 | 0.0% | 0.5% | +19.1% |
| 13 | MORGAN STANLEY | 426,504 | $338,815 | 0.0% | 0.3% | -14.0% |
| 14 | BOOTHBAY FUND MANAGEMENT, LLC | 275,219 | $218,634 | 0.0% | 0.2% | 0.0% |
| 15 | NORTHERN TRUST CORP | 261,907 | $208,059 | 0.0% | 0.2% | +21.3% |
| 16 | TWO SIGMA INVESTMENTS, LP | 224,537 | $178,372 | 0.0% | 0.1% | -53.2% |
| 17 | PEAK6 LLC | 200,000 | $158,880 | 0.0% | 0.1% | 0.0% |
| 18 | GOLDMAN SACHS GROUP INC | 175,864 | $139,706 | 0.0% | 0.1% | +157.0% |
| 19 | Cerity Partners LLC | 168,500 | $133,856 | 0.0% | 0.1% | 0.0% |
| 20 | Shay Capital LLC | 130,221 | $103,448 | 0.0% | 0.1% | -63.6% |
| 21 | OSAIC HOLDINGS, INC. | 106,216 | $83,909 | 0.0% | 0.1% | +5.4% |
| 22 | FNY Investment Advisers, LLC | 65,420 | $51 | 0.0% | 0% | +84.3% |
| 23 | Cambridge Investment Research Advisors, Inc. | 64,000 | $51 | 0.0% | 0% | 0.0% |
| 24 | HighTower Advisors, LLC | 51,442 | $40,866 | 0.0% | 0% | 0.0% |
| 25 | MAI Capital ManagementNEW | 50,000 | $39,720 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.