ADAG · Insider Trading
Adagene Inc. American Depositary Shares
Every open-market purchase and sale reported by ADAG 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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-02 | Chunfang Gu | Executive Director of Finance | — | — | — |
| 2026-09-25 | Man Kin Tam | Chief Financial Officer | Buy | +2,000 | +$6.00K |
| 2026-09-17 | Peter Luo | Chief Executive Officer | Buy | +20,290 | +$63.98K |
| 2026-08-18 | Cuong V Do | Director | Buy | +2,000 | +$7.50K |
| 2026-08-17 | Andy Yiu Leung Cheung | Director | A | +20,000 deriv. | — |
| 2026-08-17 | Cuong V Do | Director | A | +20,000 deriv. | — |
| 2026-08-17 | Li Zhu | Director | A | +20,000 deriv. | — |
| 2026-08-14 | Ulf Grawunder | Director | A | +20,000 deriv. | — |
| 2026-08-06 | Peter Luo | Chief Executive Officer | Buy | +23,245 | +$84.76K |
| 2026-08-06 | Peter Luo | Chief Executive Officer | Buy | +23,245 | +$84.76K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Peter Luo | Chief Executive Officer | 88,535 | $220.45K |
| Chunfang Gu | Executive Director of Finance | 15,625 | $38.91K |
| Man Kin Tam | Chief Financial Officer | 12,000 | $29.88K |
| Cuong V Do | Director | 2,000 | $4.98K |
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 ADAG 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.