GUTS · Insider trading · 13F holders · Congress trades
Fractyl Health, Inc. (GUTS)
Who is buying and selling GUTS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 6
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
GUTS at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 GUTS insider filed 1 open-market purchase worth $0.00 on SEC Form 4.
- 6 13F filers hold GUTS among their 50 largest positions, worth $18.3M combined. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (2.1%), Catalio Capital Management, LP (0.9%) and Pale Fire Capital SE (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in GUTS.
- GUTS last closed at $0.99 on Oct 29, 2026.
GUTS insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 GUTS insider filed 1 open-market purchase worth $0.00 on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Bradley William | Director | Buy | 64,516 | $0.62 | — | SEC |
Who owns GUTS? Hedge funds and superinvestors
6 13F filers hold GUTS among their 50 largest positions, worth $18.3M combined. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (2.1%), Catalio Capital Management, LP (0.9%) and Pale Fire Capital SE (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Catalio Capital Management, LPHedge fund | 0.9% | $4.9M | 6,168,749 | +12.3% shares | Q2 2026 |
| Pale Fire Capital SEAsset manager | 0.3% | $4.0M | 5,003,237 | -15.5% shares | Q2 2026 |
| General Catalyst Group Management, LLCHedge fund | 2.1% | $3.9M | 4,884,186 | -0.0% shares | Q2 2026 |
| Deer Management Co. LLCHedge fund | 0.5% | $3.8M | 4,770,901 | +0.0% shares | Q2 2026 |
| M28 Capital Management LPHedge fund | 3.1% | $1.5M | 1,856,117 | +0.0% shares | Q2 2026 |
| Mink Brook Asset Management LLCHedge fund | 0.1% | $280K | 352,745 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 6). Screen GUTS in the grand portfolio →
GUTS stock trades by members of Congress
No member of Congress has disclosed a trade in GUTS.
GUTS questions and answers
Are insiders buying GUTS stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 GUTS insider filed 1 open-market purchase worth $0.00 on SEC Form 4.
Which hedge funds own GUTS?
6 13F filers hold GUTS among their 50 largest positions, worth $18.3M combined. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (2.1%), Catalio Capital Management, LP (0.9%) and Pale Fire Capital SE (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded GUTS?
No member of Congress has disclosed a trade in GUTS.
Who is the largest holder of GUTS?
Among 13F filers, Catalio Capital Management, LP reports the largest GUTS position, $4.9M (6,168,749 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is General Catalyst Group Management, LLC's: 2.1% of its portfolio.
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