Nir Zuk Net Worth: Surprising Facts About His Fortune (2026)
Nir Zuk net worth is at least $1.3 billion in 2026, based on the roughly 3.1 million “Palo Alto Networks” (PANW) shares he last reported holding. But this number comes with a catch. Estimates we found range from $456 million to $1.92 billion, and three of the four pages we could read still call Zuk the company’s Chief Technology Officer.
He resigned from that job and his board seat on August 14, 2025. His last reported stock sale came on August 1, 2025, and the data behind every estimate stops there. This page shows where each figure comes from, why they disagree, and how we reached ours.
Nir Zuk Net Worth at a Glance
The figures below come from SEC based trackers GuruFocus and Quiver Quantitative, with Zonebourse for background. They leave out cash, property, and private investments, because none are publicly documented.
| Fact | Detail |
| Estimated net worth | At least $1.3 billion (PANW stock only) |
| Known for | Founding Palo Alto Networks (2005) |
| Former roles | CTO and director, Palo Alto Networks (resigned August 14, 2025) |
| Shares last reported | 3,143,516 PANW shares (August 1, 2025) |
| Last reported sale | 100,000 shares on August 1, 2025, about $17 million (GuruFocus) |
| Stock sold since 2021 | About $497.4 million (Quiver Quantitative) |
| Education | Undergraduate degree, Tel Aviv University (Zonebourse) |
| Range across sources | $456 million to $1.92 billion |
Who Is Nir Zuk? Background
Zuk was 54 when he stepped down from Palo Alto Networks at 54, and Calcalist describes him as an Israeli entrepreneur. Zonebourse lists an undergraduate degree from Tel Aviv University and an early job as an engineer at Check Point Software Technologies. We could not find reliable public sources on his childhood, family, or hometown, so we left them out instead of guessing.
The record does show one useful pattern. Every employer on his résumé sold network security or networking gear: Check Point, OneSecure, NetScreen Technologies, Juniper Networks, and finally Palo Alto Networks. He spent his career building and selling products in one niche, and the last company made him rich.
His wealth is equity, not salary. Founders of public companies hold most of their money in stock, so the total moves with the share price instead of with paychecks. A $1 move in PANW shifts his estimated holdings by about $3.1 million. That is why Nir Zuk net worth figures vary so much from site to site.
Career Timeline & Key Milestones
Early Career: Check Point and OneSecure
Zuk started as an engineer at Check Point Software Technologies. He later founded OneSecure, Inc. and served as its chief technology officer, according to Zonebourse. OneSecure sold network- and application level protection, including firewall and VPN products.
NetScreen Technologies and Juniper Networks
Next, he became CTO of NetScreen Technologies. Juniper Networks bought NetScreen in 2004 in a deal Calcalist puts at $4 billion. Calcalist reports that Zuk became Juniper’s CTO at age 33, while Zonebourse lists his title there as chief security technologist. A year later, he started his own company.
Founding Palo Alto Networks (2005)
Zuk founded Palo Alto Networks in 2005. Calcalist credits him with pioneering the next generation firewall. In his farewell statement, Zuk said he started the company to challenge a stagnant industry with a platform approach to cybersecurity. The company, based in Santa Clara, California, grew into a platform vendor covering cloud, network, and endpoint security. Zuk held the CTO title and a board seat until August 2025.
Resignation and Recent Years
On August 13, 2025, Zuk told the board he was resigning as CTO and director, effective August 14, according to a Palo Alto Networks SEC filing. Lee Klarich, the company’s Chief Product Officer since 2017, joined the board and took the combined role of Chief Product and Technology Officer. In his statement, Zuk said he was confident in CEO Nikesh Arora’s leadership.
The timing is worth noticing. Zuk started Palo Alto Networks the year after the NetScreen sale, and he left it while the company was pursuing its $25 billion CyberArk acquisition (Calcalist). The announcement hinted at new ideas beyond Palo Alto Networks but gave no details.
Nir Zuk Net Worth Breakdown by Income Source
All of Zuk’s documented wealth sits in one stock. The table shows what each piece rests on.
| Source | Amount | Basis | Confidence |
| PANW stock held | About $1.316 billion | 3,143,516 shares × $418.78 (GuruFocus) | Medium: holdings as of August 1, 2025 |
| Stock sold since 2021 | About $497.4 million (estimated) | 2.0 million shares (Quiver Quantitative) | Medium |
| 2024 stock sales | About $429.9 million | 2.69 million shares (Benzinga) | Medium |
| Salary | About $1.12 million (estimated) | InsiderTrades, older snapshot | Low |
PANW Stock Holdings
GuruFocus lists 3,143,516 shares as of August 1, 2025. At $418.78 a share, that is about $1.316 billion. This is the core of our estimate, and it is the only large asset we found with a public paper trail.
Stock Sales
Quiver Quantitative estimates Zuk sold about 2.0 million shares since 2021 for roughly $497.4 million. Benzinga puts 2024 sales alone near $430 million. The totals clash, so treat sale proceeds as a rough range, not an exact record.
Salary
InsiderTrades lists a $1.12 million salary as EVP at Palo Alto Networks. We have not checked it against a current proxy statement, so it is an estimate. Salary is small next to equity.
Nir Zuk Net Worth: Why Every Estimate Is Different
Five sources give five numbers. The gaps come from a few simple causes, not from different information about Zuk.
| Source | Figure | Date | Why it differs |
| Zonebourse | $456 million | March 31, 2024 | About 1.6 million shares, counted before the December 2024 split |
| InsiderTrades | $522.6 million | February 3 (year not shown) | 3,143,516 shares at roughly $166 each |
| GuruFocus | $1.3 billion | October 10, 2026 | Same shares at $418.78 |
| Quiver Quantitative | $1.8 billion headline, $1.3 billion in body | October 7, 2026 | Its headline and its own holdings figure disagree; no explanation given |
| Benzinga | $1.92 billion | May 19, 2026 | Counts holdings across several companies, including NetScreen Technologies |
Share price and date. The same 3,143,516 shares appear as $522.6 million on one site and $1.3 billion on another. Only the price and the date changed.
The stock split. Palo Alto Networks completed a two for one stock split in December 2024, with split adjusted trading starting December 16 (SEC Form 8, K). Older snapshots show about half as many shares for the same stake.
Scope. Benzinga counts shares across several companies. Its $1.92 billion is higher than 3.1 million PANW shares are worth at any price we found, and we could not reproduce it. Quiver’s $1.8 billion headline would need about 4.3 million shares at $418.78, well above the 3.1 million it reports.
Frozen data. Every figure rests on filings that end in August 2025. No later trades appear in the sources we checked.
We use the GuruFocus math because anyone can repeat it: at least $1.3 billion, stock only.
Assets: What Is Publicly Documented
Palo Alto Networks stock is the only asset with a verifiable record, and GuruFocus’s filings database shows it as the only company he owns shares in. We found no reliable sources on real estate, vehicles, art, or private investments, and we will not list items we cannot source. Proceeds from earlier sales exist (Quiver estimates about $497 million before taxes), but no public filing shows where that money went. If documents appear, we will add them here.
Nir Zuk Net Worth Growth Over the Years
The table tracks the value of Zuk’s reported PANW holdings at five points in time.
| Date | PANW holdings value | Source |
| March 2024 | $456 million | Zonebourse |
| August 2024 | $513 million | GuruFocus |
| November 2024 | $778 million | GuruFocus |
| April 2025 | $636 million | GuruFocus |
| October 2026 | $1.32 billion | GuruFocus (August 2025 shares at current price) |
Share counts change between rows because of the December 2024 split and his sales, so the value column is the fair comparison. From April 2025 to October 2026, the value roughly doubled, even though his share count fell from 3,543,516 to 3,143,516. The gain came from price: $179.62 a share in April 2025 versus $418.78 now (GuruFocus). The 2026 figure assumes he still holds the August 2025 stake.
Nir Zuk vs Lee Klarich Net Worth
Klarich is the natural comparison. Both men worked at NetScreen before Palo Alto Networks, and Klarich took over Zuk’s CTO duties and joined the board on August 14, 2025.
| Name | Net Worth | Profession | Primary Income Source |
| Nir Zuk | At least $1.3 billion | Founder and former CTO, Palo Alto Networks | PANW stock |
| Lee Klarich | About $291 million (MarketScreener, July 30, 2026) | Chief Product and Technology Officer, Palo Alto Networks | PANW stock and salary |
Klarich’s own number is unsettled. InsiderTrades lists a far lower figure, about $67.9 million, based on 235,983 shares.
Selling History and Public Image
Zuk sold stock steadily. Quiver’s list shows sales in most months from mid 2021 through August 1, 2025, and Quiver names him the most active PANW insider trader, ahead of Lee Klarich and Nikesh Arora. With the addition of Quiver’s entries, April 11, 2025, was his biggest selling day, at about 650,000 shares. The sales on May 1, July 1, and August 1, 2025 each add up to exactly 100,000 shares.
Counts differ by source. GuruFocus lists 37 sales over five years with no open market buys, while Quiver lists 338 trades. Both end at the same date. Benzinga also records about $97.3 million spent on 1.53 million shares in 2024 but does not say how those shares were acquired.
Calcalist called his exit the end of an era for cybersecurity and credited him with the next generation firewall. We found no documented controversies or philanthropy, so we left those out.
Frequently Asked Questions
What is Nir Zuk net worth in 2026?
At least $1.3 billion. That is 3,143,516 Palo Alto Networks shares valued at $418.78 each, per GuruFocus on October 10, 2026. Other sites range from $456 million to $1.92 billion. The gap comes from share prices and dates, not new information about Zuk.
Is Nir Zuk a billionaire?
On paper, yes. His last reported PANW stake is worth about $1.3 billion at current prices. The share count dates from August 2025, so we cannot confirm he still holds all of it. He would fall below $1 billion in PANW stock only by selling roughly 750,000 shares since then, at today’s price.
How does Nir Zuk make his money?
From Palo Alto Networks stock, the only holding GuruFocus lists for him. Quiver Quantitative tracks his sales of it, and InsiderTrades lists a salary near $1.12 million. The salary is small next to the stock, which GuruFocus values at about $1.3 billion.
How much Palo Alto Networks stock does Nir Zuk own?
He last reported 3,143,516 shares on August 1, 2025, according to GuruFocus. At $418.78 a share, that stake is worth about $1.316 billion. Quiver Quantitative also lists about 3.1 million shares, and neither source shows later holdings data.
Why do Nir Zuk net worth estimates differ?
Each source uses a different share price, date, and scope. A December 2024 stock split also changed share counts. Benzinga’s $1.92 billion includes holdings across several companies, and we could not reproduce it, while Quiver’s headline and body disagree by $500 million.
Is Nir Zuk still the CTO of Palo Alto Networks?
No. Zuk resigned as CTO and director effective August 14, 2025, according to a Palo Alto Networks SEC filing. Lee Klarich took over as Chief Product and Technology Officer and joined the board. Zuk’s last reported stock sale came two weeks earlier, on August 1, 2025.
Final Reviews
Nir Zuk net worth is best read as a range with a clear floor: at least $1.3 billion in PANW stock, as of his last filing. The numbers online differ because of share prices, dates, and a 2024 stock split, not because anyone has better data.
Treat any figure without a date or share count with caution, and check the share count and price date before trusting a headline number. We will update this page when new filings show what Zuk holds after leaving Palo Alto Networks.
James Whitfield writes about celebrity net worth, public figures’ biographies, career milestones, and financial backgrounds for NetWorthAbout.com. His content helps readers explore the professional achievements and potential income sources behind well known personalities. James focuses on presenting information in a reader friendly format, with attention to clarity, context, and responsible reporting. When discussing wealth estimates, his editorial approach emphasizes the difference between verified financial information and figures that remain estimates rather than confirmed personal disclosures.
