Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

Longsworth Todd Christopher

2. Date of Event Requiring Statement (MM/DD/YYYY) 1/1/2017

3. Issuer Name and Ticker or Trading Symbol

Novocure Ltd [NVCR]

(Last) (First) (Middle)

C/O NOVOCURE INC., 20 VALLEY STREAM PKWY SUITE 300

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
General Counsel /

(Street)

MALVERN, PA 19355

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares	2022	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Options to Buy Ordinary Shares	⁽¹⁾	4/29/2022	Ordinary Shares	82782	$6.72	D
Options to Buy Ordinary Shares	⁽²⁾	2/19/2023	Ordinary Shares	41391	$7.03	D
Options to Buy Ordinary Shares	⁽³⁾	7/23/2023	Ordinary Shares	59130	$7.04	D
Options to Buy Ordinary Shares	⁽⁴⁾	10/20/2024	Ordinary Shares	44347	$7.73	D
Options to Buy Ordinary Shares	⁽⁵⁾	2/23/2025	Ordinary Shares	44347	$14.37	D
Options to Buy Ordinary Shares	⁽⁶⁾	2/24/2026	Ordinary Shares	30000	$11.46	D

Explanation of Responses:
( 1)	Fully vested and currently exercisable as of the date hereof.
( 2)	Options to buy 31,041 ordinary shares are vested and currently exercisable as of the date hereof. The remaining 10,350 ordinary shares will vest and become exercisable on February 20, 2017, subject to Mr. Longsworth's continued employment through such date.
( 3)	Options to buy 44,346 ordinary shares are vested and currently exercisable as of the date hereof. The remaining options to buy 14,784 ordinary shares will vest and become exercisable on July 24, 2017, subject to Mr. Longsworth's continued employment through such date.
( 4)	Options to buy 22,172 ordinary shares are vested and currently exercisable as of the date hereof. The remaining options to buy 22,175 ordinary shares will vest and become exercisable in equal installments on each of October 22, 2017 and 2018, subject to Mr. Longsworth's continued employment through such dates.
( 5)	Options to buy 11,086 ordinary shares are vested and currently exercisable as of the date hereof. The remaining options to buy 33,261 ordinary shares will vest and become exercisable in equal installments on each of February 25, 2017, 2018 and 2019.
( 6)	Options to buy 30,000 ordinary shares will vest and become exercisable in equal installments on each of February 24, 2017, 2018, 2019 and 2020, subject to Mr. Longsworth's continued employment through such dates.

Remarks:
Exhibit 24 - Power of Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Longsworth Todd Christopher C/O NOVOCURE INC. 20 VALLEY STREAM PKWY SUITE 300 MALVERN, PA 19355			General Counsel

Signatures
/s/ Kimberly Burke, Attorney in fact for Todd Christopher Longsworth		1/6/2017
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.