GUTS · Insider Trading

Fractyl Health, Inc. Common Stock

Every open-market purchase and sale reported by GUTS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
12
code P
Sales
0
code S
Reporting Insiders
9
current holders
GUTS — Recent Form 4 Transactions (latest 2026-09-16)
FiledInsiderRole TypeSharesValue
2026-09-16 William Bradley Director Buy +64,516 +$39.90K
2026-06-15 Ajay Royan Director Buy +23,000 +$19.60K
2026-06-11 Ajay Royan Director A +22,500 deriv. —
2026-06-11 Christopher Charles Thompson Director A +22,500 deriv. —
2026-06-11 Clive Meanwell Director A +22,500 deriv. —
2026-06-11 William Bradley Director Buy +68,493 +$50.33K
2026-06-11 Samuel Conaway Director A +22,500 deriv. —
2026-06-11 Marc Elia Director A +22,500 deriv. —
2026-06-11 Kelly Ann Barnes Director A +22,500 deriv. —
2026-06-11 Ian Sheffield Director Buy +35,000 +$25.53K
2026-06-11 Harith Rajagopalan Chief Executive Officer Buy +25,000 +$18.25K
2026-06-09 Weber Lara Smith Chief Financial Officer Buy +20,000 +$13.71K
2026-01-14 Weber Lara Smith Chief Financial Officer A +1,036,800 deriv. —
2025-12-17 Harith Rajagopalan Chief Executive Officer A +2,486,302 deriv. —
2025-12-17 Sarah Toomey General Counsel A +743,913 deriv. —
2025-12-17 Jay David Caplan President, Chief Product Off. A +845,226 deriv. —
2025-12-08 Harith Rajagopalan Chief Executive Officer Buy +10,416 +$20.00K
2025-09-04 Ian Sheffield Director A +45,000 deriv. —
2025-09-04 Christopher Charles Thompson Director A +45,000 deriv. —
2025-06-13 Amy W Schulman Director A +22,500 deriv. —
2025-06-13 Clive Meanwell Director A +22,500 deriv. —
2025-06-13 Kelly Ann Barnes Director A +22,500 deriv. —
2025-06-13 Samuel Conaway Director A +22,500 deriv. —
2025-06-13 William Bradley Director A +22,500 deriv. —
2025-06-13 Marc Elia Director A +22,500 deriv. —
2025-06-13 Ajay Royan Director A +22,500 deriv. —
2025-03-18 Samuel Conaway Director — — —
2025-03-18 Kelly Ann Barnes Director Buy +31,000 +$40.21K
2025-03-18 Ajay Royan Director Buy +17,901 +$22.98K
2025-03-17 William Bradley Director Buy +16,129 +$20.36K
2025-03-17 Amy W Schulman Director Buy +8,550 +$9.96K
2025-03-17 Samuel Conaway Director Buy +8,550 +$9.96K
2025-03-03 Timothy Kieffer Chief Scientific Officer A +204,980 deriv. —
2025-03-03 Jay David Caplan President, Chief Product Off. A +284,100 deriv. —
2025-03-03 Sarah Toomey General Counsel A +245,580 deriv. —
2025-03-03 Harith Rajagopalan Chief Executive Officer A +833,031 deriv. —
2025-03-03 Lisa Davidson Chief Financial Officer A +266,200 deriv. —
2025-02-03 Jay David Caplan President, Chief Product Off. MIXED — −$7.78K
2025-02-03 Harith Rajagopalan Chief Executive Officer MIXED — −$15.74K
2024-11-13 Jay David Caplan President, Chief Product Off. MIXED +123,060 −$158.54K
2024-11-13 Harith Rajagopalan Chief Executive Officer MIXED +120,407 −$238.36K
2024-09-13 Jay David Caplan President, Chief Product Off. MIXED +30,484 −$26.15K
2024-04-02 Adrian Kimber Chief Commercial Officer A +250,000 deriv. —
2024-02-08 Corebridge DECO II, LLC 10%+ Owner C +673,391 —
2024-02-08 M28 Capital Management LP Director MIXED +3,712,234 +$14.00M
2024-02-08 Ajay Royan Director MIXED +6,412,201 +$5.00M
2024-02-08 Harith Rajagopalan Chief Executive Officer C +9,318 —
2024-02-08 Deerfield Mgmt III, L.P. 10%+ Owner C +3,337,016 —
2024-02-08 Clive Meanwell Director C +277,890 —
2024-02-08 GC Entrepreneurs Fund V, LP 10%+ Owner C +19,201,240 —
GUTS — Current Insider Holders
InsiderRole Shares HeldValue
Ajay Royan Director 433,433 $407.47K
Harith Rajagopalan Chief Executive Officer 69,394 $65.24K
Jay David Caplan President, Chief Product Off. 44,485 $41.82K
Clive Meanwell Director 23,158 $21.77K
William Bradley Director 12,428 $11.68K
Ian Sheffield Director 2,917 $2.74K
Kelly Ann Barnes Director 2,583 $2.43K
Weber Lara Smith Chief Financial Officer 1,667 $1.57K
Amy W Schulman Director 712 $669
GUTS Insider Trading FAQ
Who are the insiders at GUTS?
9 officers, directors and 10%+ beneficial owners currently report holdings in GUTS via SEC Form 4.
Are GUTS insiders buying or selling?
Across the 50 most recent Form 4 filings for GUTS, 12 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is GUTS insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent GUTS filing is dated 2026-09-16.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the GUTS quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.