Julius Genachowski - Net Worth and Insider Trading
Julius Genachowski Net Worth
The estimated net worth of Julius Genachowski is at least $9 Million dollars as of 2026-09-10. Julius Genachowski is the Director of Mastercard Inc and owns about 10,259 shares of Mastercard Inc (MA) stock worth over $6 Million. Julius Genachowski is the Director of Sonos Inc and owns about 147,809 shares of Sonos Inc (SONO) stock worth over $2 Million. Julius Genachowski is also the Executive Vice President of Match Group Inc and owns about 18,438 shares of Match Group Inc (MTCH) stock worth over $762,227. Details can be seen in Julius Genachowski'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 Julius Genachowski has not made any transactions after 2026-07-29 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Julius Genachowski
Julius Genachowski Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Julius Genachowski owns 5 companies in total, including Mastercard Inc (MA) , Sonos Inc (SONO) , and Web.com Group Inc (WEB) among others .
Click here to see the complete history of Julius Genachowski’s form 4 insider trades.
Insider Ownership Summary of Julius Genachowski
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| MA | Mastercard Inc | 2025-07-07 | director |
| SONO | Sonos Inc | 2026-07-29 | director |
| WEB | Web.com Group Inc | 2009-08-10 | director |
| 2004-01-14 | EVP & GC and Secretary | ||
| 2024-02-05 | director |
Julius Genachowski Latest Holdings Summary
Julius Genachowski currently owns a total of 3 stocks. Among these stocks, Julius Genachowski owns 10,259 shares of Mastercard Inc (MA) as of July 7, 2025, with a value of $6 Million and a weighting of 66.25%. Julius Genachowski owns 147,809 shares of Sonos Inc (SONO) as of July 29, 2026, with a value of $2 Million and a weighting of 25.04%. Julius Genachowski also owns 18,438 shares of Match Group Inc (MTCH) as of January 14, 2004, with a value of $762,227 and a weighting of 8.71%.
Latest Holdings of Julius Genachowski
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| MA | Mastercard Inc | 2025-07-07 | 10,259 | 564.91 | 5,795,413 |
| SONO | Sonos Inc | 2026-07-29 | 147,809 | 14.82 | 2,190,529 |
| MTCH | Match Group Inc | 2004-01-14 | 18,438 | 41.34 | 762,227 |
Holding Weightings of Julius Genachowski
Julius Genachowski Form 4 Trading Tracker
According to the SEC Form 4 filings, Julius Genachowski has made a total of 2 transactions in Mastercard Inc (MA) over the past 5 years, including 0 buys and 2 sells. The most-recent trade in Mastercard Inc is the sale of 312 shares on July 7, 2025, which brought Julius Genachowski around $178,049.
According to the SEC Form 4 filings, Julius Genachowski has made a total of 2 transactions in Sonos Inc (SONO) over the past 5 years, including 1 buys and 1 sells. The most-recent trade in Sonos Inc is the sale of 39,710 shares on July 29, 2026, which brought Julius Genachowski around $665,143.
According to the SEC Form 4 filings, Julius Genachowski has made a total of 0 transactions in Match Group Inc (MTCH) over the past 5 years. The most-recent trade in Match Group Inc is the sale of 3,687 shares on January 14, 2004, which brought Julius Genachowski around $232,322.
Insider Trading History of Julius Genachowski
* 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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Julius Genachowski Trading Performance
GuruFocus tracks the stock performance after each of Julius Genachowski's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Julius Genachowski is 43.78%. GuruFocus also compares Julius Genachowski's trading performance to market benchmark return within the same time period. The performance of stocks bought by Julius Genachowski within 3 months outperforms 1 times out of 1 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Julius Genachowski's insider trading performs compared to the benchmark.
Performance of Julius Genachowski
Julius Genachowski Ownership Network
Ownership Network List of Julius Genachowski
Ownership Network Relation of Julius Genachowski

Julius Genachowski Owned Company Details
What does Mastercard Inc do?
Who are the key executives at Mastercard Inc?
Julius Genachowski is the director of Mastercard Inc. Other key executives at Mastercard Inc include Chief Financial Officer J. Mehra Sachin , President & North America Linda Pistecchia Kirkpatrick , and Chief Product Officer Michael Miebach .
Mastercard Inc (MA) Insider Trades Summary
Over the past 18 months, Julius Genachowski made 2 insider transaction in Mastercard Inc (MA) with a net sale of 622. Other recent insider transactions involving Mastercard Inc (MA) include a net sale of 56,547 shares made by J. Mehra Sachin , a net sale of 9,269 shares made by Linda Pistecchia Kirkpatrick , and a net sale of 11,986 shares made by Raj Seshadri .
In summary, during the past 3 months, insiders sold 111,341 shares of Mastercard Inc (MA) in total and bought 0 shares, with a net sale of 111,341 shares. During the past 18 months, 231,954 shares of Mastercard Inc (MA) were sold and 0 shares were bought by its insiders, resulting in a net sale of 231,954 shares.
Mastercard Inc (MA)'s detailed insider trading history can be found in Insider Trading Tracker table.
Mastercard Inc Insider Transactions
Julius Genachowski Mailing Address
Above is the net worth, insider trading, and ownership report for Julius Genachowski. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Julius Genachowski's mailing address is: New York Ny 10019.