nvcr-20260901

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (date of earliest event reported)

(Exact name of registrant as specified in its charter)


Jersey	001-37565		98-1057807
(State or other jurisdiction of incorporation or organization)	(Commission File Number)		(I.R.S. Employer Identification No.)

No. 4 The Forum, Grenville Street	St. Helier	Jersey	JE2 4UF
(Address of Principal Executive Offices)			(Zip Code)

+44 (0) 15 3475 6700

Registrant's telephone number, including area code

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Ordinary Shares, no par value	NVCR	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Item 8.01 Other Events.

In mid-August 2026, NovoCure Limited (the "Company," "we," or "us") through a subsidiary, became aware of unauthorized access to some of its information systems. Upon detecting the unauthorized access, the Company activated its cybersecurity response plan, implemented containment measures, and initiated an internal investigation of the event. The Company also engaged independent cybersecurity forensic experts to assist with the investigation, including reviewing the exposed data that was accessed. Based on the investigation to date, the Company determined that the exposed data included: internal Company patient ID numbers for over 1,400 U.S. patient records (these ID numbers are only used internally and no patient names or other identifying data for these was exposed); patient data for fewer than 50 other patients in the western U.S. that included additional identifying information; general contact information for healthcare providers we work with; and general contact information for Novocure employees, such as their job titles and phone numbers. No access to any of our medical treatment devices was obtained, our ability to operate has not been compromised and all of our systems are fully functional. The Company takes its obligation to safeguard privacy and security of its patients’ data very seriously. The Company continues to evaluate applicable regulatory and legal notification requirements and will make all required notifications based on its findings, including to impacted patients.

At this time, we do not believe that this cybersecurity incident will have a material impact or reasonably likely material impact on our financial condition and results of operations; however, at the time of this filing we are continuing to ascertain additional information regarding this incident. If additional information is obtained whereby we determine this cybersecurity incident will have a material impact or reasonably likely material impact on our financial condition and results of operations, we undertake to file an amendment to this Form 8-K filing under Item 1.05 containing such information within four business days after we, without unreasonable delay, determine such information, or within four business days after such information becomes available.

Forward-Looking Statements

In addition to historical facts or statements of current condition, this press release may contain forward-looking statements. Forward-looking statements provide Novocure’s current expectations or forecasts of future events. These may include statements regarding anticipated scientific progress on its research programs, clinical study progress, development of potential products, interpretation of clinical results, prospects for regulatory approval, manufacturing development and capabilities, market prospects for its products, coverage, collections from third-party payers and other statements regarding matters that are not historical facts. You may identify some of these forward-looking statements by the use of words in the statements such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” or other words and terms of similar meaning. Novocure’s performance and financial results could differ materially from those reflected in these forward-looking statements due to general financial, economic, environmental, regulatory and political conditions and other more specific risks and uncertainties facing Novocure such as those set forth in its Annual Report on Form 10-K filed on February 26, 2026, and subsequent flings with the U.S. Securities and Exchange Commission. Given these risks and uncertainties, any or all of these forward-looking statements may prove to be incorrect. Therefore, you should not rely on any such factors or forward-looking statements. Furthermore, Novocure does not intend to update publicly any forward-looking statement, except as required by law. Any forward-looking statements herein speak only as of the date hereof. The Private Securities Litigation Reform Act of 1995 permits this discussion.

Item 9.01 Financial Statements and Exhibits.


Exhibit No.			Description

104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: September 1, 2026

By: /s/ Christoph Brackmann

Name: Christoph Brackmann

Title: Chief Financial Officer