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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

July 30, 2025

Date of Report (Date of earliest event reported)

PALO ALTO NETWORKS, INC.

(Exact name of registrant as specified in its charter)

3000 Tannery Way

Santa Clara, California 95054

(Address of principal executive offices)

(408) 753-4000

(Registrant’s telephone number, including area code)

Not applicable

(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:

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

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 7.01 Regulation FD Disclosure.

In connection with the announcement of the entry by Palo Alto Networks, Inc., a Delaware corporation (“PANW”), into an Agreement and Plan of Merger (the “Merger Agreement”), dated as of July 30, 2025, by and among PANW, CyberArk Software Ltd., a company organized under the laws of the State of Israel (“CyberArk”), and Athens Strategies Ltd., a company organized under the laws of the State of Israel and a wholly owned subsidiary of PANW (“Merger Sub”), PANW intends to provide supplemental information regarding the proposed transaction in connection with presentations to analysts and investors. A copy of the investor presentation that will be made available in connection with the presentations is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information contained in this Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, is being furnished to the Securities and Exchange Commission (the “SEC”) and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. This information shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, whether made before, on, or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing.

Item 8.01 Other Events.

On July 30, 2025, PANW and CyberArk issued a joint press release announcing the entry into the Merger Agreement, pursuant to which, upon the terms and subject to the conditions set forth therein, Merger Sub will merge with and into CyberArk (the “Merger”), with CyberArk continuing as the surviving corporation in the Merger and a wholly owned subsidiary of PANW.

A copy of the press release is attached as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Forward-Looking Statements

This Current Report on Form 8-K relates to a proposed transaction between PANW and CyberArk. This Current Report on Form 8-K includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical or current facts, including, without limitation, statements regarding the benefits of the proposed transaction, statements related to the expected timing of the completion of the proposed transaction, PANW plans, objectives, expectations and intentions, and other statements that are not historical facts, made in this Current Report on Form 8-K are forward-looking. We use words such as “anticipates,” “believes,” “continue,” “estimate,” “expects,” “future,” “intends,” “may,” “plan,” and similar expressions to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Forward-looking statements reflect management’s current expectations and are inherently uncertain. Actual results could differ materially for a variety of reasons.

There are a significant number of factors that could cause actual results to differ materially from forward-looking statements made or implied in this Current Report on Form 8-K, including: the occurrence of any event, change or

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other circumstance that could give rise to the termination of the proposed transaction between PANW and CyberArk; PANW’s ability to successfully integrate CyberArk’s businesses and technologies; the risk that the expected benefits and synergies of the proposed transaction may not be fully achieved in a timely manner, or at all; the risk that PANW or CyberArk will be unable to retain and hire key personnel; the risk associated with CyberArk’s ability to obtain the approval of its shareholders required to consummate the proposed transaction; the risk that the conditions to the proposed transaction are not satisfied on a timely basis, or at all, or the failure of the proposed transaction to close for any other reason or to close on the anticipated terms; the risk that any regulatory approval, consent or authorization that may be required for the proposed transaction is not obtained or is obtained subject to conditions that are not anticipated or that could adversely affect the expected benefits of the transaction; significant and/or unanticipated difficulties, liabilities or expenditures relating to the transaction; the effect of the announcement, pendency or completion of the proposed transaction on the parties’ business relationships and business operations generally; the effect of the announcement or pendency of the proposed transaction on the parties’ common or ordinary share prices and uncertainty as to the long-term value of PANW’s or CyberArk’s common or ordinary shares; risks related to disruption of management time from ongoing business operations due to the proposed transaction; the outcome of any legal proceedings that may be instituted against PANW, CyberArk or their respective directors; developments and changes in general or worldwide market, geopolitical, economic, and business conditions; failure of PANW’s platformization product offerings; failure to achieve the expected benefits of PANW’s strategic partnerships and acquisitions; changes in the fair value of PANW’s contingent consideration liability associated with acquisitions; risks associated with managing PANW’s growth; risks associated with new product, subscription and support offerings, including product offerings that leverage AI; shifts in priorities or delays in the development or release of new product or subscription or other offerings, or the failure to timely develop and achieve market acceptance of new products and subscriptions as well as existing products, subscriptions and support offerings; failure of PANW’s or CyberArk’s business strategies; rapidly evolving technological developments in the market for security products, subscriptions and support offerings; defects, errors, or vulnerabilities in our products, subscriptions or support offerings; PANW’s customers’ purchasing decisions and the length of sales cycles; PANW’s competition; PANW’s ability to attract and retain new customers; PANW’s ability to acquire and integrate other companies, products, or technologies in a successful manner; PANW’s share repurchase program, which may not be fully consummated or enhance shareholder value, and any share repurchases which could affect the price of its common stock.

For additional risks and uncertainties on these and other factors that could cause actual results to differ materially from those described in the forward-looking statements, please refer to PANW’s and CyberArk’s respective periodic reports and other filings with the SEC, including the risk factors contained in PANW’s and CyberArk’s annual report on Form 10-K or 20-F, as applicable, periodic quarterly reports on Form 10-Q or reports of foreign private issuer on Form 6-K, as applicable. All forward-looking statements in this Current Report on Form 8-K are based on current beliefs and information available to management as of the date hereof, and neither PANW nor CyberArk assumes any obligation to update the forward-looking statements provided to reflect events that occur or circumstances that exist after the date on which they were made.

No Offer or Solicitation

This Current Report on Form 8-K is not intended to and shall not constitute an offer to buy or sell or the solicitation of an offer to buy or sell any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made, except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended.

Additional Information about the Merger and Where to Find It

In connection with the proposed transaction, PANW intends to file with the SEC a registration statement on Form S-4, which will include a proxy statement of CyberArk that also constitutes a prospectus of PANW common shares to be offered in the proposed transaction. Each of PANW and CyberArk may also file or furnish other relevant documents with the SEC regarding the proposed transaction. This Current Report on Form 8-K is not a substitute for the proxy statement/prospectus or registration statement or any other document that PANW or CyberArk may file or furnish with the SEC or send to security holders in connection with the proposed transaction. The registration

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statement will include a definitive proxy statement/prospectus, which will be sent to shareholders of CyberArk seeking their approval of the proposed transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT ON FORM S-4, THE PROXY STATEMENT/PROSPECTUS INCLUDED WITHIN THE REGISTRATION STATEMENT ON FORM S-4 AND ANY OTHER RELEVANT DOCUMENTS THAT MAY BE FILED OR FURNISHED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THESE DOCUMENTS, CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Investors and security holders will be able to obtain free copies of the registration statement and proxy statement/prospectus, when available, and other documents containing important information about PANW, CyberArk and the proposed transaction, once such documents are filed or furnished with the SEC through the website maintained by the SEC at www.sec.gov. Copies of the documents filed with the SEC by PANW will be available free of charge on PANW’s website at www.paloaltonetworks.com or by contacting PANW’s Investor Relations Department by email at [email protected]. Copies of the documents filed or furnished with the SEC by CyberArk will be available free of charge on CyberArk’s website at www.cyberark.com or by contacting CyberArk’s Investor Relations department by email at [email protected] or by phone at 617-558-2132.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Current Report on Form 8-K to be signed on its behalf by the undersigned hereunto duly authorized.