| --- | --- | |---------------------------------|--------------------------------------| | | | | | | | | | | | | | | Corporate Presentation | | | February 2021 Corporate Presentation | | www.nucana.com www.nucana.com | February 2022 | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently available to management of NuCana ...

| --- | --- | |---------------------------------|-------------------------------------------------------------| | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation February 2021 Corporate Presentation | | www.nucana.com www.nucana.com | September 2021 | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information current ...

| --- | --- | |---------------------------------|-------------------------------------------------------------| | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation February 2021 Corporate Presentation | | | June 2021 | | www.nucana.com www.nucana.com | | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information curren ...

| --- | --- | |----------------|-------------------------------------------------------------| | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation February 2021 Corporate Presentation | | www.nucana.com | March 2021 | | www.nucana.com | | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently available to ...

As filed with the Securities and Exchange Commission on March 4, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT ...

| --- | --- | --- | --- | --- | --- | |--------------------------------------|-------|-------|-------|-------|----------------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation December 2020 | | | | | www.nucana.com | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently avai ...

| --- | --- | --- | --- | --- | --- | |---------------------------------------|-------|-------|-------|-------|----------------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation September 2020 | | | | | | | | | | | | www.nucana.com | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on informatio ...

| --- | --- | --- | --- | --- | --- | |------------------------|-------|-------|-------|-------|----------------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation | | | | | | | May 2020 | | | | | | | | | | | | www.nucana.com | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently available ...

As filed with the Securities and Exchange Commission on March 10, 2020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT ...

| --- | --- | --- | --- | --- | --- | |------------------------|-------|-------|-------|-------|----------------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corporate Presentation | | | | | | | March 2020 | | | | | | | | | | | | www.nucana.com | Disclaimer Forward-Looking Statements This presentation contains "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are based on the beliefs and assumptions and on information currently availab ...