GANX · Insider Trading

Gain Therapeutics, Inc. Common Stock

Every open-market purchase and sale reported by GANX 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
4
code P
Sales
1
code S
Reporting Insiders
4
current holders
GANX — Recent Form 4 Transactions (latest 2026-07-17)
FiledInsiderRole TypeSharesValue
2026-07-17 Gwen A Melincoff Director A +25,000 deriv. —
2026-07-17 Hans Peter Hasler Director A +25,000 deriv. —
2026-07-17 Jeffrey Scott Riley Director A +25,000 deriv. —
2026-07-17 Khalid Islam Director A +25,000 deriv. —
2026-07-17 Claude Nicaise Director A +25,000 deriv. —
2026-07-17 Dov A Md Goldstein Director A +25,000 deriv. —
2026-03-26 Gene Mack CEO, President A +200,000 deriv. —
2026-03-26 Gianluca Fuggetta See Remark A +50,000 deriv. —
2025-06-25 Hans Peter Hasler Director A +15,000 deriv. —
2025-06-25 Dov A Md Goldstein Director A +15,000 deriv. —
2025-06-25 Jeffrey Scott Riley Director A +15,000 deriv. —
2025-06-25 Gwen A Melincoff Director A +15,000 deriv. —
2025-06-25 Claude Nicaise Director A +15,000 deriv. —
2025-06-25 Eric I Richman Director A +15,000 deriv. —
2025-06-25 Khalid Islam Director A +15,000 deriv. —
2025-03-21 Gene Mack CEO, President A +200,000 deriv. —
2025-03-21 Gianluca Fuggetta See Remark A +50,000 deriv. —
2025-01-07 Gene Mack CEO, President A +271,325 deriv. —
2024-08-12 Gene Mack CFO and Interim CEO Buy +14,400 +$14.54K
2024-08-12 Khalid Islam Executive Chairman Buy +50,000 +$49.94K
2024-07-01 Eric I Richman Director Buy +17,000 +$20.67K
2024-06-26 Gwen A Melincoff Director A +15,000 deriv. —
2024-06-26 Claude Nicaise Director A +15,000 deriv. —
2024-06-26 Eric I Richman Director A +15,000 deriv. —
2024-06-26 Hans Peter Hasler Director A +15,000 deriv. —
2024-06-26 Dov A Md Goldstein Director A +15,000 deriv. —
2024-06-26 Khalid Islam Director A +15,000 deriv. —
2024-06-26 Jeffrey Scott Riley Director A +15,000 deriv. —
2024-04-08 Gene Mack Chief Financial Officer A +200,000 deriv. —
2024-04-01 Jeffrey Scott Riley Director Buy +30,000 +$115.77K
2024-03-28 Matthias Alder Chief Executive Officer MIXED +14,127 −$24.71K
2024-03-25 Gianluca Fuggetta See Remark A +50,000 deriv. —
2024-03-25 Matthias Alder Chief Executive Officer A +370,000 deriv. —
2023-12-22 Matthias Alder Chief Executive Officer MIXED +431 −$507
2023-12-14 Matthias Alder Chief Executive Officer Sell −1,820 −$4.55K
2023-10-03 Matthias Alder Chief Executive Officer M +825 —
2023-09-22 Matthias Alder Chief Executive Officer M +2,550 —
2023-09-22 Eric I Richman Director M +54,900 —
2023-07-05 Matthias Alder Chief Executive Officer M +3,300 —
2023-06-26 Khalid Islam Director A +10,500 deriv. —
2023-06-26 Dov A Md Goldstein Director A +10,500 deriv. —
2023-06-26 Jeffrey Scott Riley Director A +10,500 deriv. —
2023-06-26 Hans Peter Hasler Director A +10,500 deriv. —
2023-06-26 Gwen A Melincoff Director A +10,500 deriv. —
2023-06-26 Claude Nicaise Director A +10,500 deriv. —
2023-04-12 Charles Evan Ballantyne Chief Financial Officer A +150,000 deriv. —
2023-03-27 Gianluca Fuggetta Principal Accounting Officer A +15,000 deriv. —
2023-03-27 Salvatore Calabrese Chief Financial Officer A +75,000 deriv. —
2023-03-27 Matthias Alder Chief Executive Officer A +225,000 deriv. —
2022-09-22 Hans Peter Hasler Director A +10,500 deriv. —
GANX — Current Insider Holders
InsiderRole Shares HeldValue
Khalid Islam Executive Chairman 930,784 $1.07M
Eric I Richman Director 292,458 $336.33K
Jeffrey Scott Riley Director 30,000 $34.50K
Gene Mack CEO, President 14,400 $16.56K
GANX Insider Trading FAQ
Who are the insiders at GANX?
4 officers, directors and 10%+ beneficial owners currently report holdings in GANX via SEC Form 4.
Are GANX insiders buying or selling?
Across the 50 most recent Form 4 filings for GANX, 4 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is GANX insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent GANX filing is dated 2026-07-17.
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 GANX 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.