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

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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.

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.
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Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Irving Tan Trading Performance

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

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See GF Score, valuation, financials, and warning signs for every stock Irving Tan owns.
View WDC Analysis

Irving Tan Ownership Network

Ownership Network List of Irving Tan

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Ownership Network Relation of Irving Tan

Insider Network Chart


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.

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Cisco Systems Inc Insider Transactions

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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.