NCNA · Insider Trading
NuCana plc American Depositary Share
Every open-market purchase and sale reported by NCNA 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 |
|---|---|---|---|---|---|
| 2026-06-24 | Elliott M. Levy | Director | D | −23,811,896 deriv. | — |
| 2026-06-23 | Jeffrey D. Bloss | Chief Medical Officer | D | −36,539,720 deriv. | — |
| 2026-04-16 | Theresa Margaret Ms Bruce | Chief Operating Officer | A | +132,600,130 deriv. | — |
| 2024-08-23 | Carl L Gordon | Director | MIXED | — | — |
| 2024-08-23 | Katie Peng | Director | MIXED | — | — |
| 2024-08-23 | Steve Dubin | Director | MIXED | — | — |
| 2024-08-23 | Michael Kauffman | Director | MIXED | — | — |
| 2024-08-23 | Aya Jakobovits | Director | MIXED | — | — |
| 2024-08-23 | Andrew Sinclair | Director | MIXED | — | — |
| 2024-08-23 | Jeffrey Chodakewitz | Director | MIXED | — | — |
| 2024-08-20 | Lloyd Klickstein | Director | A | +70,200 deriv. | — |
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 NCNA 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.