Mark T Bertolini - Net Worth and Insider Trading
Mark T Bertolini Net Worth
The estimated net worth of Mark T Bertolini is at least $413 Million dollars as of 2026-08-08. Mark T Bertolini is the CEO of Oscar Health Inc and owns about 7,751,570 shares of Oscar Health Inc (OSCR) stock worth over $216 Million. Mark T Bertolini is also the Chairman and CEO of Aetna Inc and owns about 925,317 shares of Aetna Inc (AET) stock worth over $197 Million. Details can be seen in Mark T Bertolini'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 Mark T Bertolini has not made any transactions after 2026-06-30 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Mark T Bertolini
Mark T Bertolini Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Mark T Bertolini owns 4 companies in total, including Verizon Communications Inc (VZ) , CVS Health Corp (CVS) , and Aetna Inc (AET) among others .
Click here to see the complete history of Mark T Bertolini’s form 4 insider trades.
Insider Ownership Summary of Mark T Bertolini
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| VZ | Verizon Communications Inc | 2021-03-01 | director |
| CVS | CVS Health Corp | 2018-11-28 | director |
| AET | Aetna Inc | 2018-11-28 | director & Chairman and CEO |
 | | 2026-06-30 | director & Chief Executive Officer |
Mark T Bertolini Latest Holdings Summary
Mark T Bertolini currently owns a total of 2 stocks. Among these stocks, Mark T Bertolini owns 7,751,570 shares of Oscar Health Inc (OSCR) as of June 30, 2026, with a value of $216 Million and a weighting of 52.35%. Mark T Bertolini also owns 925,317 shares of Aetna Inc (AET) as of May 17, 2017, with a value of $197 Million and a weighting of 47.65%.
Latest Holdings of Mark T Bertolini
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| OSCR | Oscar Health Inc | 2026-06-30 | 7,751,570 | 27.90 | 216,268,803 |
| AET | Aetna Inc | 2017-05-17 | 925,317 | 212.70 | 196,814,926 |
Holding Weightings of Mark T Bertolini
Mark T Bertolini Form 4 Trading Tracker
According to the SEC Form 4 filings, Mark T Bertolini has made a total of 3 transactions in Oscar Health Inc (OSCR) over the past 5 years, including 1 buys and 2 sells. The most-recent trade in Oscar Health Inc is the sale of 1,238,996 shares on June 30, 2026, which brought Mark T Bertolini around $36 Million.
According to the SEC Form 4 filings, Mark T Bertolini has made a total of 0 transactions in Aetna Inc (AET) over the past 5 years. The most-recent trade in Aetna Inc is the sale of 103,547 shares on May 17, 2017, which brought Mark T Bertolini around $15 Million.
Insider Trading History of Mark T Bertolini
* 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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Mark T Bertolini Trading Performance
GuruFocus tracks the stock performance after each of Mark T Bertolini's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Mark T Bertolini is 42.83%. GuruFocus also compares Mark T Bertolini's trading performance to market benchmark return within the same time period. The performance of stocks bought by Mark T Bertolini within 3 months outperforms 1 times out of 3 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Mark T Bertolini's insider trading performs compared to the benchmark.
Performance of Mark T Bertolini
Average Return
Outperforming Transactions
| 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
|---|---|---|---|---|---|---|
| Return(%) | 25.18 | | | | | |
| Relative Return to S&P 500(%) | 23.83 | | | | | |
Mark T Bertolini Ownership Network
Ownership Network List of Mark T Bertolini
Ownership Network Relation of Mark T Bertolini
Mark T Bertolini Owned Company Details
What does Verizon Communications Inc do?
Who are the key executives at Verizon Communications Inc?
Mark T Bertolini is the director of Verizon Communications Inc. Other key executives at Verizon Communications Inc include EVP & Chief HR Officer Samantha Hammock , SVP and Controller Mary-lee Stillwell , and director & Chairman and CEO Hans Erik Vestberg .
Verizon Communications Inc (VZ) Insider Trades Summary
Over the past 18 months, Mark T Bertolini made no insider transaction in Verizon Communications Inc (VZ). Other recent insider transactions involving Verizon Communications Inc (VZ) include a net sale of 41,500 shares made by Kyle Malady , a net sale of 225,000 shares made by Hans Erik Vestberg , and a net sale of 73,069 shares made by Samantha Hammock .
In summary, during the past 3 months, insiders sold 73,069 shares of Verizon Communications Inc (VZ) in total and bought 0 shares, with a net sale of 73,069 shares. During the past 18 months, 367,717 shares of Verizon Communications Inc (VZ) were sold and 0 shares were bought by its insiders, resulting in a net sale of 367,717 shares.
Verizon Communications Inc (VZ)'s detailed insider trading history can be found in Insider Trading Tracker table.
Verizon Communications Inc Insider Transactions
Mark T Bertolini Mailing Address
Above is the net worth, insider trading, and ownership report for Mark T Bertolini. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mark T Bertolini's mailing address is: New York Ny 10013.
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