Michael G Grey - Net Worth and Insider Trading

Michael G Grey Net Worth

The estimated net worth of Michael G Grey is at least $26 Million dollars as of 2024-11-10. Michael G Grey is the Director of Mirum Pharmaceuticals Inc and owns about 382,948 shares of Mirum Pharmaceuticals Inc (MIRM) stock worth over $16 Million. Michael G Grey is the Director of Horizon Therapeutics PLC and owns about 62,290 shares of Horizon Therapeutics PLC (HZNP) stock worth over $7 Million. Michael G Grey is also the Director of Biomarin Pharmaceutical Inc and owns about 42,840 shares of Biomarin Pharmaceutical Inc (BMRN) stock worth over $3 Million. Besides these, Michael G Grey also holds Mirati Therapeutics Inc (MRTX) . Details can be seen in Michael G Grey'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 Michael G Grey has not made any transactions after 2023-09-14 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 Michael G Grey

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Michael G Grey Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Michael G Grey owns 7 companies in total, including Spruce Biosciences Inc (SPRB) , Horizon Therapeutics PLC (HZNP) , and Biomarin Pharmaceutical Inc (BMRN) among others .

Click here to see the complete history of Michael G Grey’s form 4 insider trades.

Insider Ownership Summary of Michael G Grey

Ticker Comapny Transaction Date Type of Owner
SPRB Spruce Biosciences Inc 2020-10-08 director & Executive Chairman
HZNP Horizon Therapeutics PLC 2021-07-22 director
BMRN Biomarin Pharmaceutical Inc 2021-03-05 director
LIMIT LIMIT 2023-09-14 director & Executive Chairman
LIMIT LIMIT 2020-12-14 director
LIMIT LIMIT 2009-12-18 director
LIMIT LIMIT 2021-04-08 director & Executive Chairman

Michael G Grey Latest Holdings Summary

Michael G Grey currently owns a total of 4 stocks. Among these stocks, Michael G Grey owns 382,948 shares of Mirum Pharmaceuticals Inc (MIRM) as of September 14, 2023, with a value of $16 Million and a weighting of 60.81%. Michael G Grey owns 62,290 shares of Horizon Therapeutics PLC (HZNP) as of July 22, 2021, with a value of $7 Million and a weighting of 27.39%. Michael G Grey also owns 42,840 shares of Biomarin Pharmaceutical Inc (BMRN) as of March 5, 2021, with a value of $3 Million and a weighting of 10.86%. The other 1 stocks Mirati Therapeutics Inc (MRTX) have a combined weighting of 0.94% among all his current holdings.

Latest Holdings of Michael G Grey

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
MIRM Mirum Pharmaceuticals Inc 2023-09-14 382,948 42.00 16,083,816
HZNP Horizon Therapeutics PLC 2021-07-22 62,290 116.30 7,244,327
BMRN Biomarin Pharmaceutical Inc 2021-03-05 42,840 67.07 2,873,279
MRTX Mirati Therapeutics Inc 2020-12-14 4,256 58.70 249,827

Holding Weightings of Michael G Grey


Michael G Grey Form 4 Trading Tracker

According to the SEC Form 4 filings, Michael G Grey has made a total of 3 transactions in Mirum Pharmaceuticals Inc (MIRM) over the past 5 years, including 0 buys and 3 sells. The most-recent trade in Mirum Pharmaceuticals Inc is the sale of 14,608 shares on September 14, 2023, which brought Michael G Grey around $467,456.

According to the SEC Form 4 filings, Michael G Grey has made a total of 6 transactions in Horizon Therapeutics PLC (HZNP) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Horizon Therapeutics PLC is the sale of 5,000 shares on July 22, 2021, which brought Michael G Grey around $500,200.

According to the SEC Form 4 filings, Michael G Grey has made a total of 2 transactions in Biomarin Pharmaceutical Inc (BMRN) over the past 5 years, including 0 buys and 2 sells. The most-recent trade in Biomarin Pharmaceutical Inc is the sale of 5,000 shares on March 5, 2021, which brought Michael G Grey around $381,400.

More details on Michael G Grey's insider transactions can be found in the Insider Trading History of Michael G Grey table.

Insider Trading History of Michael G Grey

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.

Michael G Grey Trading Performance

GuruFocus tracks the stock performance after each of Michael G Grey's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Michael G Grey is 19.59%. GuruFocus also compares Michael G Grey's trading performance to market benchmark return within the same time period. The performance of stocks bought by Michael G Grey 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 Michael G Grey'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 Michael G Grey

Average Return

LIMIT
Average return per transaction

Outperforming Transactions

LIMIT
1 out of 1 outperforming transactions.
Each transaction is measured over a period and compared to .
1 Month 3 Months 6 Months 1 Year 2 Years 3 Years
Return(%) 16.06 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) 14.72 LIMIT LIMIT LIMIT LIMIT LIMIT

Michael G Grey Ownership Network

Ownership Network List of Michael G Grey

No Data

Ownership Network Relation of Michael G Grey

Insider Network Chart

Michael G Grey Owned Company Details

What does Spruce Biosciences Inc do?

Who are the key executives at Spruce Biosciences Inc?

Michael G Grey is the director & Executive Chairman of Spruce Biosciences Inc. Other key executives at Spruce Biosciences Inc include 10 percent owner Novo Holdings A/s , Chief Medical Officer Charlton Ralph William Iii , and director & Chief Executive Officer Javier B. Szwarcberg .

Spruce Biosciences Inc (SPRB) Insider Trades Summary

Over the past 18 months, Michael G Grey made no insider transaction in Spruce Biosciences Inc (SPRB). Other recent insider transactions involving Spruce Biosciences Inc (SPRB) include a net sale of 4,172,336 shares made by Novo Holdings A/s ,

In summary, during the past 3 months, insiders sold 0 shares of Spruce Biosciences Inc (SPRB) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 4,172,336 shares of Spruce Biosciences Inc (SPRB) were sold and 0 shares were bought by its insiders, resulting in a net sale of 4,172,336 shares.

Spruce Biosciences Inc (SPRB)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Spruce Biosciences Inc Insider Transactions

No Available Data

Michael G Grey Mailing Address

Above is the net worth, insider trading, and ownership report for Michael G Grey. You might contact Michael G Grey via mailing address: C/o Sgx Pharmaceuticals, Inc., 10505 Roselle Street, San Diego Ca 92121.