GUTS · Fractyl Health, Inc. · Shareholders & Ownership
$1.33
-0.05 (-3.62%)
At close · Oct 20
Return incl. dividend (before tax)
Going-concern doubt
— flagged Aug 10, 2026
Substantial doubt about the company's ability to continue as a going concern.
“As a result, we have concluded that substantial doubt exists about our ability to continue as a going concern for at least one year after the date that these financial statements are issued.”View the 10-Q filed Aug 10, 2026
Market Cap
$17.64M
Shares
13.26M
Volume · Oct 20
474.3K
Avg daily vol (12 sessions)
1.54M
Every disclosed holder of GUTS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns GUTS
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 5,896,887 | 44.45% |
| Insiders (Forms 3, 4, 5) | 227,235 | 1.71% |
| 13D/G-only blocks | 2,367,341 | 17.85% |
| Remaining | 4,773,524 | 35.99% |
| Registered funds (N-PORT, not summed) | 606,821 | 4.57% |
Shares outstanding: 13,264,987, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of GUTS
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Nantahala Capital Management, LLC
13F
CIK 1472322 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
940,758 | ||
| 2 |
Alyeska Investment Group, L.P.
13G
CIK 1453072 · Registered investment adviser · Dec 31, 2025
Rule 13d-1(b), qualified institution
|
634,920 | ||
| 3 |
|
538,342 | ||
| 4 |
Catalio Capital Management, LP
13F
CIK 1958125 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
514,062 | ||
| 5 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
508,077 | ||
| 6 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
502,846 | ||
| 7 |
Pale Fire Capital SE
13F
CIK 1922318 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
416,936 | ||
| 8 |
|
407,015 | ||
| 9 |
General Catalyst Group Management, LLC
13F
CIK 1637946 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
407,015 | ||
| 10 |
Deer Management Co. LLC
13F
CIK 1494127 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
397,575 | ||
| 11 |
|
397,575 | ||
| 12 |
|
389,489 | ||
| 13 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
385,119 | ||
| 14 |
MAVERICK CAPITAL LTD
13F
CIK 934639 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
331,234 | ||
| 15 |
M28 Capital Management LP
13F
CIK 1807489 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
154,676 | ||
| 16 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
150,088 | ||
| 17 |
Woodline Partners LP
13F
CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
148,633 | ||
| 18 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
144,302 | ||
| 19 |
SILVERARC CAPITAL MANAGEMENT, LLC
13F
CIK 1816307 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
136,498 | ||
| 20 |
|
131,657 | ||
| 21 |
CM Management, LLC
13F
CIK 1841857 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
116,667 | ||
| 22 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
109,695 | ||
| 23 |
|
107,733 | ||
| 24 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
103,985 | ||
| 25 |
Ikarian Capital, LLC
13F
CIK 1778253 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
91,667 | ||
| 26 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
90,056 | ||
| 27 |
Logos Global Management LP
13F
CIK 1792126 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
83,333 | ||
| 28 |
Brevan Howard Capital Management LP
13F
CIK 1512857 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
76,360 | ||
| 29 |
683 Capital Management, LLC
13F
CIK 1404574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
63,060 | ||
| 30 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
60,178 | ||
| 31 |
|
52,596 | ||
| 32 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
49,559 | ||
| 33 |
Rajagopalan Harith
Insider
CIK 1667672 · Jun 10, 2026
Director, Chief Executive Officer, issuer-wide
|
46,599 | ||
| 34 |
|
43,000 | ||
| 35 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
35,542 | ||
| 36 |
Mink Brook Asset Management LLC
13F
CIK 2052205 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
29,395 | ||
| 37 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
22,935 | ||
| 38 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
21,826 | ||
| 39 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,711 | ||
| 40 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
17,864 | ||
| 41 |
PEAK6 LLC
13F
CIK 1389958 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16,667 | ||
| 42 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
15,090 | ||
| 43 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,655 | ||
| 43.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
12,469 | ||
| 44 |
Cerity Partners LLC
13F
CIK 1566475 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,042 | ||
| 45 |
|
12,428 | ||
| 46 |
Shay Capital LLC
13F
CIK 1723643 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,852 | ||
| 47 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,183 | ||
| 48 |
OSAIC HOLDINGS, INC.
13F
CIK 1677044 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,851 | ||
| 49 |
Fidelity Nasdaq Composite Index Fund
Fund
S000055366 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
8,723 | ||
| 50 |
Accredited Investors Inc.
13F
CIK 1518364 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,333 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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