STOCK TITAN

Founder CTO exits as Palo Alto Networks (PANW) elevates Lee Klarich and amends bylaws

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Palo Alto Networks reported leadership changes and updated its corporate bylaws. The company announced that founder and Chief Technology Officer Nir Zuk resigned as CTO and as a director effective August 14, 2025, citing strictly personal reasons, and is expected to continue as an advisor through November 2, 2026 under the company’s Continued Service Policy.

The Board appointed long‑time executive Lee Klarich as a Class I director effective August 14, 2025, named him chair of the Board’s Security Committee, and expanded his role to Chief Product and Technology Officer. Klarich has led product functions at the company since 2006 and will not receive additional board compensation beyond his employee pay.

The Board also adopted Amended and Restated Bylaws effective August 14, 2025. The revisions update advance notice requirements for shareholder nominations and proposals, and designate the Delaware Court of Chancery and U.S. federal district courts as exclusive forums for specified corporate and Securities Act disputes.

Positive

  • None.

Negative

  • Founder CTO and director resignation: Nir Zuk’s departure as Chief Technology Officer and from the Board effective August 14, 2025 removes a founding technical leader from executive and governance roles, which can be seen as a material leadership change even though he will continue in an advisory capacity through November 2, 2026.

Insights

Founder CTO exits board and role, with an internal successor and governance tightening.

The filing shows Palo Alto Networks transitioning key technology leadership. Founder and CTO Nir Zuk resigned from both his executive role and Board seat effective August 14, 2025, while agreeing to stay on as an advisor through November 2, 2026. This preserves access to his expertise but still marks the end of his formal governance and operational responsibilities.

Responsibility for technology and product strategy consolidates under Lee Klarich, a long‑tenured product leader who becomes Chief Product and Technology Officer and joins the Board as a Class I director. Keeping his compensation within existing employee arrangements suggests continuity rather than a disruptive external hire. The impact on technology direction will depend on how smoothly this handoff proceeds over time.

The Board also adopted Amended and Restated Bylaws on August 14, 2025, updating advance notice rules for shareholder nominations and proposals and establishing Delaware Chancery Court and U.S. federal courts as exclusive forums for certain disputes. These changes align with common large‑cap governance practices and may reduce litigation complexity, but they also formalize where stockholder challenges must be brought.

Item 2.02 Results of Operations and Financial Condition Financial
Disclosure of earnings results, typically an earnings press release or preliminary financials.
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Governance
The company amended its charter documents, bylaws, or changed its fiscal year.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
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July 310001327567false00013275672025-08-132025-08-13


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
Date of Report (Date of earliest event reported)
August 13, 2025
 _____________________
PALO ALTO NETWORKS, INC.
(Exact name of registrant as specified in its charter)
 
Delaware001-3559420-2530195
(State or other jurisdiction of
incorporation)
(Commission File Number)(IRS Employer
Identification No.)
3000 Tannery Way
Santa Clara, California 95054
(Address of principal executive office, including zip code)
(408753-4000
(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 (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 classTrading Symbol(s)Name of each exchange on which registered
Common stock, $0.0001 par value per sharePANWThe 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 2.02 Results of Operations and Financial Condition.
On August 18, 2025, Palo Alto Networks, Inc. (the “Company”) issued a press release announcing its financial results for its fourth quarter and fiscal year ended July 31, 2025. A copy of the press release is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.
The information contained in this Item 2.02 and in the accompanying Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference in such filing.
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Nir Zuk
On August 13, 2025, Nir Zuk informed the Board of Directors (the “Board”) of the Company of his resignation as the Company’s Chief Technology Officer and as a director on the Board, effective August 14, 2025. Mr. Zuk is expected to continue to provide advisory services to the Company through November 2, 2026, in connection with the Company’s Continued Service Policy. Mr. Zuk resigned voluntarily for strictly personal reasons.
The forgoing description of Mr. Zuk’s continued services to the Company is qualified in its entirety by the full text of the Company’s Continued Service Policy (see Exhibit 10.21 to our Annual Report on Form 10-K for the fiscal year ended July 31, 2024 filed with the Securities and Exchange Commission on September 6, 2024).
Lee Klarich
On August 14, 2025, the Board appointed Lee Klarich to the Board to serve as a Class I director whose term expires at the annual meeting of the Company to be held in 2027. In addition, the Board appointed Mr. Klarich as the chair of the Security Committee of the Board, and to assume an expanded role as the Company’s Chief Product and Technology Officer.
Prior to this appointment, Mr. Klarich, age 50, served as the Company’s Chief Product Officer since August 2017. Mr. Klarich served as the Company’s Executive Vice President of Product Management from November 2015 to August 2017, as the Company’s Senior Vice President, Product Management from November 2012 to November 2015, and as the Company’s Vice President, Product Management from May 2006 to November 2012. Prior to joining the Company, Mr. Klarich held various positions at NetScreen Technologies, Juniper Networks, Excite@Home, and Packard Bell-NEC. Mr. Klarich holds a B.S. in Engineering from Cornell University.
As Mr. Klarich is an existing employee of the Company, he will not receive additional compensation in connection with his appointment to the Board under the Company’s Amended and Restated Outside Director Compensation Policy. Mr. Klarich will continue to be compensated in connection with his employment with the Company; as the Company’s Chief Product and Technology Officer.
Mr. Klarich has executed the Company’s standard form of indemnification agreement (see Exhibit 10.1 to our Annual Report on Form 10-K for the fiscal year ended July 31, 2024 filed with the Securities and Exchange Commission on September 6, 2024).
There is no arrangement or understanding between Mr. Klarich and any other persons pursuant to which Mr. Klarich was elected as a director.
Mr. Klarich is not a party to any transaction, or series of transactions, required to be disclosed pursuant to Item 404(a) of Regulation S-K.



On August 18, 2025, the Company issued a press release announcing the appointment of Mr. Klarich as a director, and the resignation of Mr. Zuk. The press release is attached herewith as Exhibit 99.2.
Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
On August 14, 2025, the Board adopted amended and restated bylaws of the Company (the bylaws, as amended and restated, the “Amended and Restated Bylaws”), effective immediately. Among other things, the amendments effected by the Amended and Restated Bylaws: (i) align the Company’s bylaws with developments in current practice, (ii) clarify and update the advance notice provisions regarding procedural mechanics and disclosure requirements applicable to stockholder nominations of director candidates and submissions of proposals regarding other business, (iii) designate the Court of Chancery of the State of Delaware as the exclusive forum for certain stockholder and intra-corporate disputes, and establish the federal district courts of the United States of America as the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act of 1933, as amended, and (iv) make certain other ministerial, technical and conforming changes.
The foregoing summary of, and the description of the revisions to, the Amended and Restated Bylaws does not purport to be complete and is qualified in its entirety by reference to the complete text of the Amended and Restated Bylaws, a copy of which is filed hereto as Exhibit 3.1 to this Current Report on Form 8-K, and is incorporated herein by reference.
Forward-Looking Statements
This Current Report on Form 8-K includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. 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 the Company’s current expectations and are inherently uncertain. Actual results could differ materially for a variety of reasons. Risks and uncertainties that could cause actual results to differ materially from those expected or implied in any forward-looking statement include, but are not limited to those discussed in the section titled “Risk Factors” in our Quarterly Report on Form 10-Q filed with the U.S. Securities and Exchange Commission (“SEC”) on May 21, 2025, which is available on our website at investors.paloaltonetworks.com and on the SEC’s website at www.sec.gov. Additional information will also be set forth in other documents that we file with or furnish to the SEC from time to time. Unless otherwise provided herein, all statements in this filing are as of the date of this filing, and we do not assume any obligation to update forward-looking statements.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.
Description of Exhibit
3.1
Amended and Restated Bylaws of the Company, as adopted on August 14, 2025
99.1
Press release dated as of August 18, 2025
99.2
Press release dated as of August 18, 2025
104Cover Page Interactive Data File (formatted as Inline XBRL)



SIGNATURES
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.

PALO ALTO NETWORKS, INC.
By:
/s/ NIKESH ARORA
Nikesh Arora
Chairman and Chief Executive Officer

Date: August 18, 2025

FAQ

What did Palo Alto Networks (PANW) disclose in this 8-K filing?

The company disclosed the voluntary resignation of founder and CTO Nir Zuk from his CTO role and Board seat, the appointment of Lee Klarich as a director and Chief Product and Technology Officer, and the adoption of Amended and Restated Bylaws that update shareholder nomination rules and litigation forum provisions.

When is Nir Zuk leaving Palo Alto Networks and will he remain involved?

Nir Zuk informed the Board of his resignation on August 13, 2025, effective August 14, 2025, as Chief Technology Officer and director. He is expected to continue providing advisory services to the company under its Continued Service Policy through November 2, 2026.

Who is replacing Nir Zuk in technology leadership at Palo Alto Networks (PANW)?

The Board appointed Lee Klarich as a Class I director effective August 14, 2025 and expanded his role to Chief Product and Technology Officer. Klarich has served in multiple senior product management roles at the company since 2006 and was Chief Product Officer since August 2017.

How do the new Palo Alto Networks bylaws affect shareholders?

The Amended and Restated Bylaws adopted on August 14, 2025 clarify and update advance notice procedures and disclosure requirements for stockholder director nominations and other business proposals, and designate the Delaware Court of Chancery as the exclusive forum for certain intra-corporate disputes and U.S. federal district courts as the exclusive forum for Securities Act of 1933 claims.

Will Lee Klarich receive extra compensation for joining the Palo Alto Networks Board?

No. Because Lee Klarich is an existing employee, he will not receive additional compensation under the company’s Amended and Restated Outside Director Compensation Policy for his Board service and will continue to be compensated in connection with his employment as Chief Product and Technology Officer.

Did Palo Alto Networks (PANW) release its quarterly and annual results in this filing?

The company stated that on August 18, 2025 it issued a press release announcing financial results for the fourth quarter and fiscal year ended July 31, 2025, and furnished that press release as Exhibit 99.1 to this report, incorporating it by reference.