X0306 4 2017-06-09 0 0001645113 Novocure Ltd NVCR 0001654435 Danziger Asaf C/O NOVOCURE INC. 20 VALLEY STREAM PARKWAY, SUITE 300 MALVERN PA 19355 1 1 0 0 Chief Executive Officer Ordinary Shares 2017-06-09 4 S 0 175501 15.128 D 1163296 D Ordinary Shares 2017-06-12 4 S 0 5100 15.085 D 1158196 D On June 9, 2017, pursuant to a Rule 10b5-1 trading plan adopted by Mr. Danziger, Mr. Danziger sold 175,501 shares in multiple trades at prices ranging from $15.00 to $15.30. The price reported above reflects the weighted average sale price. Mr. Danziger hereby undertakes to provide to the Staff, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. On June 12, 2017, pursuant to a Rule 10b5-1 trading plan adopted by Mr. Danziger, Mr. Danziger sold 5,100 shares in multiple trades at prices ranging from $15.00 to $15.25. The price reported above reflects the weighted average sale price. Mr. Danziger hereby undertakes to provide to the Staff, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. By: /s/ Todd Longsworth, Attorney in fact for Asaf Danziger 2017-06-13