Stephen A Sherwin - Net Worth and Insider Trading

Stephen A Sherwin Net Worth

The estimated net worth of Stephen A Sherwin is at least $6 Million dollars as of 2024-04-20. Stephen A Sherwin is the Director of Neurocrine Biosciences Inc and owns about 25,055 shares of Neurocrine Biosciences Inc (NBIX) stock worth over $3 Million. Stephen A Sherwin is the Director of Biogen Inc and owns about 15,438 shares of Biogen Inc (BIIB) stock worth over $3 Million. Stephen A Sherwin is also the Director of Fresh Tracks Therapeutics Inc and owns about 2 shares of Fresh Tracks Therapeutics Inc (FRTX) stock worth over $2. Details can be seen in Stephen A Sherwin's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the assumption that Stephen A Sherwin has not made any transactions after 2023-01-03 and currently still holds the listed stock(s).

Transaction Summary of Stephen A Sherwin

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Stephen A Sherwin Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Stephen A Sherwin owns 12 companies in total, including Biogen Inc (BIIB) , Neurocrine Biosciences Inc (NBIX) , and Neon Therapeutics Inc (NTGN) among others .

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

Insider Ownership Summary of Stephen A Sherwin

Ticker Comapny Transaction Date Type of Owner
BIIB Biogen Inc 2020-03-11 director
NBIX Neurocrine Biosciences Inc 2023-01-03 director
NTGN Neon Therapeutics Inc 2020-05-06 director
ADRO Aduro Biotech Inc 2020-05-05 director
RIGL Rigel Pharmaceuticals Inc 2003-07-28 director
VSTM Verastem Inc 2013-03-05 director
FRTX Fresh Tracks Therapeutics Inc 2013-05-23 director
ANIP ANI Pharmaceuticals Inc 2009-10-14 director
KDNY Chinook Therapeutics Inc 2018-06-06 director
BIOS BioPlus Acquisition Corp 2021-12-02 director
EPHY Epiphany Technology Acquisition Corp 2022-09-16 director
EPHYU Epiphany Technology Acquisition Corp 2022-09-16 director

Stephen A Sherwin Latest Holdings Summary

Stephen A Sherwin currently owns a total of 3 stocks. Among these stocks, Stephen A Sherwin owns 25,055 shares of Neurocrine Biosciences Inc (NBIX) as of January 3, 2023, with a value of $3 Million and a weighting of 52.41%. Stephen A Sherwin owns 15,438 shares of Biogen Inc (BIIB) as of March 11, 2020, with a value of $3 Million and a weighting of 47.59%. Stephen A Sherwin also owns 2 shares of Fresh Tracks Therapeutics Inc (FRTX) as of May 23, 2013, with a value of $2 and a weighting of 0%.

Latest Holdings of Stephen A Sherwin

Ticker Comapny Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
NBIX Neurocrine Biosciences Inc 2023-01-03 25,055 131.96 3,306,258
BIIB Biogen Inc 2020-03-11 15,438 194.44 3,001,688
FRTX Fresh Tracks Therapeutics Inc 2013-05-23 2 0.90 2

Holding Weightings of Stephen A Sherwin


Stephen A Sherwin Form 4 Trading Tracker

According to the SEC Form 4 filings, Stephen A Sherwin has made a total of 3 transactions in Neurocrine Biosciences Inc (NBIX) over the past 5 years, including 0 buys and 3 sells. The most-recent trade in Neurocrine Biosciences Inc is the sale of 30,000 shares on January 3, 2023, which brought Stephen A Sherwin around $4 Million.

According to the SEC Form 4 filings, Stephen A Sherwin has made a total of 1 transactions in Biogen Inc (BIIB) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Biogen Inc is the sale of 2,434 shares on March 11, 2020, which brought Stephen A Sherwin around $718,566.

According to the SEC Form 4 filings, Stephen A Sherwin has made a total of 0 transactions in Fresh Tracks Therapeutics Inc (FRTX) over the past 5 years. The most-recent trade in Fresh Tracks Therapeutics Inc is the acquisition of 2 shares on May 23, 2013, which cost Stephen A Sherwin around $70.

Insider Trading History of Stephen A Sherwin

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 A Sherwin Trading Performance

GuruFocus tracks the stock performance after each of Stephen A Sherwin's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Stephen A Sherwin is -62.29%. GuruFocus also compares Stephen A Sherwin's trading performance to market benchmark return within the same time period. The performance of stocks bought by Stephen A Sherwin within 3 months outperforms 0 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 Stephen A Sherwin'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 A Sherwin

Average Return

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(%) -16.76 -62.29 -69.27 -65.64 -49.19 -52.21
Relative Return to S&P 500(%) -13.24 -63.08 -78.62 -80.79 -62.71 -59.66

Stephen A Sherwin Ownership Network

Ownership Network List of Stephen A Sherwin

No Data

Ownership Network Relation of Stephen A Sherwin


Stephen A Sherwin Owned Company Details

What does Biogen Inc do?

Who are the key executives at Biogen Inc?

Stephen A Sherwin is the director of Biogen Inc. Other key executives at Biogen Inc include Head of Development Priya Singhal , Head of Research Jane Grogan , and EVP & Human Resources Ginger Gregory .

Biogen Inc (BIIB) Insider Trades Summary

Over the past 18 months, Stephen A Sherwin made no insider transaction in Biogen Inc (BIIB). Other recent insider transactions involving Biogen Inc (BIIB) include a net sale of 2,797 shares made by Priya Singhal , a net sale of 8,291 shares made by Ginger Gregory , and a net sale of 5,532 shares made by Susan H Alexander .

In summary, during the past 3 months, insiders sold 1,516 shares of Biogen Inc (BIIB) in total and bought 455 shares, with a net sale of 1,061 shares. During the past 18 months, 16,620 shares of Biogen Inc (BIIB) were sold and 455 shares were bought by its insiders, resulting in a net sale of 16,165 shares.

Biogen Inc (BIIB)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Biogen Inc Insider Transactions

No Available Data

Stephen A Sherwin Mailing Address

Above is the net worth, insider trading, and ownership report for Stephen A Sherwin. You might contact Stephen A Sherwin via mailing address: C/o Cell Genesys, Inc., 500 Forbes Blvd., South San Francisco Ca 94080.

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