Irving Tan - Net Worth and Insider Trading
Irving Tan Net Worth
The estimated net worth of Irving Tan is at least $283 Million dollars as of 2026-09-11. Irving Tan is the CEO of Western Digital Corp and owns about 575,966 shares of Western Digital Corp (WDC) stock worth over $265 Million. Irving Tan is also the EVP, Chief of Operations of Cisco Systems Inc and owns about 167,538 shares of Cisco Systems Inc (CSCO) stock worth over $18 Million. Details can be seen in Irving Tan's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Irving Tan has not made any transactions after 2026-08-11 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Irving Tan
Irving Tan Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Irving Tan owns 3 companies in total, including Cisco Systems Inc (CSCO) , Stanley Black & Decker Inc (SWK) , and Western Digital Corp (WDC) .
Click here to see the complete history of Irving Tan’s form 4 insider trades.
Insider Ownership Summary of Irving Tan
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| CSCO | Cisco Systems Inc | 2020-11-24 | SVP & Operations and Digital |
| SWK | Stanley Black & Decker Inc | 2020-02-20 | director |
| WDC | Western Digital Corp | 2026-08-11 | director & Chief Executive Officer |
Irving Tan Latest Holdings Summary
Irving Tan currently owns a total of 2 stocks. Among these stocks, Irving Tan owns 575,966 shares of Western Digital Corp (WDC) as of August 11, 2026, with a value of $265 Million and a weighting of 93.65%. Irving Tan also owns 167,538 shares of Cisco Systems Inc (CSCO) as of November 24, 2020, with a value of $18 Million and a weighting of 6.35%.
Latest Holdings of Irving Tan
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| WDC | Western Digital Corp | 2026-08-11 | 575,966 | 460.93 | 265,480,008 |
| CSCO | Cisco Systems Inc | 2020-11-24 | 167,538 | 107.44 | 18,000,283 |
Holding Weightings of Irving Tan
Irving Tan Form 4 Trading Tracker
According to the SEC Form 4 filings, Irving Tan has made a total of 6 transactions in Western Digital Corp (WDC) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Western Digital Corp is the sale of 20,000 shares on August 11, 2026, which brought Irving Tan around $9 Million.
According to the SEC Form 4 filings, Irving Tan has made a total of 0 transactions in Cisco Systems Inc (CSCO) over the past 5 years. The most-recent trade in Cisco Systems Inc is the sale of 3,841 shares on November 24, 2020, which brought Irving Tan around $162,743.
Insider Trading History of Irving Tan
* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.
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Irving Tan Trading Performance
Irving Tan Ownership Network
Ownership Network List of Irving Tan
Ownership Network Relation of Irving Tan

Irving Tan Owned Company Details
What does Cisco Systems Inc do?
Who are the key executives at Cisco Systems Inc?
Irving Tan is the SVP & Operations and Digital of Cisco Systems Inc. Other key executives at Cisco Systems Inc include SVP & Chief Accounting Officer Nichlas A Fink , EVP & Operations Thimaya K. Subaiya , and EVP and CFO Mark Patterson .
Cisco Systems Inc (CSCO) Insider Trades Summary
Over the past 18 months, Irving Tan made no insider transaction in Cisco Systems Inc (CSCO). Other recent insider transactions involving Cisco Systems Inc (CSCO) include a net sale of 22,784 shares made by Maria Victoria Wong , a net sale of 102,765 shares made by Thimaya K. Subaiya , and a net sale of 213,355 shares made by Deborah L Stahlkopf .
In summary, during the past 3 months, insiders sold 58,470 shares of Cisco Systems Inc (CSCO) in total and bought 0 shares, with a net sale of 58,470 shares. During the past 18 months, 1,493,805 shares of Cisco Systems Inc (CSCO) were sold and 0 shares were bought by its insiders, resulting in a net sale of 1,493,805 shares.
Cisco Systems Inc (CSCO)'s detailed insider trading history can be found in Insider Trading Tracker table.
Cisco Systems Inc Insider Transactions
Irving Tan Mailing Address
Above is the net worth, insider trading, and ownership report for Irving Tan. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Irving Tan's mailing address is: San Jose Ca 95119.