| SC 13G/A | 2019-02-14 | Griffith Hugh | NuCana plc | 3,209,977 | 9.3% | EDGAR |
| SC 13G | 2019-02-14 | Morningside Venture Investments Ltd | NuCana plc | 2,911,111 | 9.0% | EDGAR |
| SC 13G | 2019-02-14 | Woodford Investment Management Ltd | NuCana plc | 1,865,000 | 5.8% | EDGAR |
| SC 13G | 2019-02-14 | Capital Research Global Investors | NuCana plc | 3,170,352 | 10.0% | EDGAR |
| SC 13G/A | 2019-02-12 | Scottish Enterprise | NuCana plc | 1,946,915 | 6.2% | EDGAR |
| SC 13G | 2018-07-13 | WOOD CHRISTOPHER B | NuCana plc | 1,949,374 | 6.0% | EDGAR |
| SC 13G | 2018-07-13 | Griffith Hugh | NuCana plc | 3,403,531 | 10.0% | EDGAR |
| SC 13D | 2018-02-21 | SOFINNOVA CAPITAL VI FCPR | NuCana plc | 8,100,000 | 26.2% | EDGAR |
| SC 13G | 2018-02-15 | Scottish Enterprise | NuCana plc | 2,246,915 | 7.1% | EDGAR |
| SC 13G | 2018-02-14 | SMALLCAP WORLD FUND INC | NuCana plc | 2,002,628 | 6.2% | EDGAR |
| SC 13G | 2018-02-13 | Morningside Venture Investments Ltd | NuCana plc | 2,911,111 | 9.4% | EDGAR |
| SC 13D | 2017-10-11 | Sofinnova Venture Partners VIII, L.P. | NuCana plc | 4,666,666 | 15.1% | EDGAR |