Stephen F. Mahoney - Net Worth and Insider Trading

Stephen F. Mahoney Net Worth

The estimated net worth of Stephen F. Mahoney is at least $494,582 dollars as of 2024-11-05. Stephen F. Mahoney is the President and CEO of Viridian Therapeutics Inc and owns about 21,400 shares of Viridian Therapeutics Inc (VRDN) stock worth over $484,603. Stephen F. Mahoney is also the See Remarks of Magenta Therapeutics Inc and owns about 14,264 shares of Magenta Therapeutics Inc (MGTA) stock worth over $9,979. Details can be seen in Stephen F. Mahoney'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 Stephen F. Mahoney has not made any transactions after 2024-09-27 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

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Transaction Summary of Stephen F. Mahoney

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Stephen F. Mahoney Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Stephen F. Mahoney owns 3 companies in total, including Kiniksa Pharmaceuticals International PLC (KNSA) , Magenta Therapeutics Inc (MGTA) , and Viridian Therapeutics Inc (VRDN) .

Click here to see the complete history of Stephen F. Mahoney’s form 4 insider trades.

Insider Ownership Summary of Stephen F. Mahoney

Ticker Comapny Transaction Date Type of Owner
KNSA Kiniksa Pharmaceuticals International PLC 2018-05-23 10 percent owner & President & COO
MGTA Magenta Therapeutics Inc 2021-09-16 See Remarks
VRDN Viridian Therapeutics Inc 2024-09-27 director & President and CEO

Stephen F. Mahoney Latest Holdings Summary

Stephen F. Mahoney currently owns a total of 2 stocks. Among these stocks, Stephen F. Mahoney owns 21,400 shares of Viridian Therapeutics Inc (VRDN) as of September 27, 2024, with a value of $484,603 and a weighting of 97.98%. Stephen F. Mahoney also owns 14,264 shares of Magenta Therapeutics Inc (MGTA) as of September 16, 2021, with a value of $9,979 and a weighting of 2.02%.

Latest Holdings of Stephen F. Mahoney

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
VRDN Viridian Therapeutics Inc 2024-09-27 21,400 22.65 484,603
MGTA Magenta Therapeutics Inc 2021-09-16 14,264 0.70 9,979

Holding Weightings of Stephen F. Mahoney


Stephen F. Mahoney Form 4 Trading Tracker

According to the SEC Form 4 filings, Stephen F. Mahoney has made a total of 1 transactions in Viridian Therapeutics Inc (VRDN) over the past 5 years, including 1 buys and 0 sells. The most-recent trade in Viridian Therapeutics Inc is the acquisition of 21,400 shares on September 27, 2024, which cost Stephen F. Mahoney around $499,262.

According to the SEC Form 4 filings, Stephen F. Mahoney has made a total of 1 transactions in Magenta Therapeutics Inc (MGTA) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Magenta Therapeutics Inc is the sale of 5,736 shares on September 16, 2021, which brought Stephen F. Mahoney around $38,603.

Insider Trading History of Stephen F. Mahoney

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.
Total 0
  • 1
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.

Stephen F. Mahoney Trading Performance

GuruFocus tracks the stock performance after each of Stephen F. Mahoney's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Stephen F. Mahoney is %. GuruFocus also compares Stephen F. Mahoney's trading performance to market benchmark return within the same time period. The performance of stocks bought by Stephen F. Mahoney within 3 months outperforms times out of transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Stephen F. Mahoney's insider trading performs compared to the benchmark.

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

Performance of Stephen F. Mahoney

Average Return

No transaction record over 1 Year.

Outperforming Transactions

No transaction record over 1 Year.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) -1.2 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) -2.42 LIMIT LIMIT LIMIT LIMIT LIMIT

Stephen F. Mahoney Ownership Network

Ownership Network List of Stephen F. Mahoney

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Ownership Network Relation of Stephen F. Mahoney

Insider Network Chart

Stephen F. Mahoney Owned Company Details

What does Kiniksa Pharmaceuticals International PLC do?

Who are the key executives at Kiniksa Pharmaceuticals International PLC?

Stephen F. Mahoney is the 10 percent owner & President & COO of Kiniksa Pharmaceuticals International PLC. Other key executives at Kiniksa Pharmaceuticals International PLC include Chief Business Officer Eben Tessari , Group VP & Rilonacept GM Ross Moat , and Chief Medical Officer John Paolini .

Kiniksa Pharmaceuticals International PLC (KNSA) Insider Trades Summary

Over the past 18 months, Stephen F. Mahoney made no insider transaction in Kiniksa Pharmaceuticals International PLC (KNSA). Other recent insider transactions involving Kiniksa Pharmaceuticals International PLC (KNSA) include a net sale of 150,848 shares made by John Paolini , a net sale of 219,460 shares made by Sanj K Patel , and a net sale of 52,000 shares made by Eben Tessari .

In summary, during the past 3 months, insiders sold 181,198 shares of Kiniksa Pharmaceuticals International PLC (KNSA) in total and bought 0 shares, with a net sale of 181,198 shares. During the past 18 months, 539,163 shares of Kiniksa Pharmaceuticals International PLC (KNSA) were sold and 0 shares were bought by its insiders, resulting in a net sale of 539,163 shares.

Kiniksa Pharmaceuticals International PLC (KNSA)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Kiniksa Pharmaceuticals International PLC Insider Transactions

No Available Data

Stephen F. Mahoney Mailing Address

Above is the net worth, insider trading, and ownership report for Stephen F. Mahoney. You might contact Stephen F. Mahoney via mailing address: C/o Kiniksa Pharmaceuticals, Ltd., Clarendon House, 2 Church Street, Hamilton D0 Hm11.