M James Barrett - Net Worth and Insider Trading

M James Barrett Net Worth

The estimated net worth of M James Barrett is at least $2.4 Billion dollars as of 2025-04-28. M James Barrett is the 10% Owner of Tesaro Inc and owns about 9,681,633 shares of Tesaro Inc (TSRO) stock worth over $726 Million. M James Barrett is the 10% Owner of iShares Indl/Office Real Estate Capped and owns about 22,603,013 shares of iShares Indl/Office Real Estate Capped (FNIO) stock worth over $721 Million. M James Barrett is also the 10% Owner of Rhythm Pharmaceuticals Inc and owns about 4,909,956 shares of Rhythm Pharmaceuticals Inc (RYTM) stock worth over $313 Million. Besides these, M James Barrett also holds Ra Pharmaceuticals Inc (RARX) , Echo Global Logistics Inc (ECHO) , Groupon Inc (GRPN) , Boingo Wireless Inc (WIFI) , Ardelyx Inc (ARDX) , Liquidia Corp (LQDA) , Amicus Therapeutics Inc (FOLD) , Adaptimmune Therapeutics PLC (ADAP) , InnerWorkings Inc (INWK) , Senseonics Holdings Inc (SENS) , Millennial Media Inc (MM) , Epizyme Inc (EPZM) , Supernus Pharmaceuticals Inc (SUPN) , Surface Oncology Inc (SURF) , Mersana Therapeutics Inc (MRSN) , GlycoMimetics Inc (GLYC) , Tableau Software Inc (DATA) , Catalyst Biosciences Inc (CBIO) , Dermira Inc (DERM) , Proteostasis Therapeutics Inc (PTI) , Interleukin Genetics Inc (ILIU) , Clovis Oncology Inc (CLVSQ) , TRACON Pharmaceuticals Inc (TCON) , Novation Companies Inc (NOVCQ) , Zosano Pharma Corp (ZSANQ) , Appian Corp (APPN) . Details can be seen in M James Barrett'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 M James Barrett has not made any transactions after 2018-09-07 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 M James Barrett

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M James Barrett Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, M James Barrett owns 60 companies in total, including Senseonics Holdings Inc (SENS) , PhaseBio Pharmaceuticals Inc (PHASQ) , and Clovis Oncology Inc (CLVSQ) among others .

Click here to see the complete history of M James Barrett’s form 4 insider trades.

Insider Ownership Summary of M James Barrett

Ticker Company Transaction Date Type of Owner
SENS Senseonics Holdings Inc 2017-06-01 director & 10 percent owner
PHASQ PhaseBio Pharmaceuticals Inc 2018-10-17 10 percent owner
CLVSQ Clovis Oncology Inc 2015-05-15 director & 10 percent owner
LIMIT LIMIT 2018-09-07 10 percent owner
LIMIT LIMIT 2018-07-30 10 percent owner
LIMIT LIMIT 2018-07-24 10 percent owner
LIMIT LIMIT 2018-06-15 director & 10 percent owner
LIMIT LIMIT 2016-07-18 10 percent owner
LIMIT LIMIT 2018-05-10 director & 10 percent owner
LIMIT LIMIT 2018-05-01 10 percent owner
LIMIT LIMIT 2018-04-23 10 percent owner
LIMIT LIMIT 2018-03-27 10 percent owner
LIMIT LIMIT 2018-03-06 10 percent owner
LIMIT LIMIT 2018-02-26 10 percent owner
LIMIT LIMIT 2018-02-16 10 percent owner
LIMIT LIMIT 2017-11-27 10 percent owner
LIMIT LIMIT 2015-09-30 10 percent owner
LIMIT LIMIT 2018-01-01 10 percent owner
LIMIT LIMIT 2017-11-06 10 percent owner
LIMIT LIMIT 2017-10-10 10 percent owner
LIMIT LIMIT 2017-07-03 10 percent owner
LIMIT LIMIT 2017-06-28 director & 10 percent owner
LIMIT LIMIT 2017-02-13 director & 10 percent owner
LIMIT LIMIT 2016-07-29 10 percent owner
LIMIT LIMIT 2016-06-14 10 percent owner
LIMIT LIMIT 2015-12-08 director & 10 percent owner
LIMIT LIMIT 2016-02-03 10 percent owner
LIMIT LIMIT 2016-01-12 10 percent owner
LIMIT LIMIT 2015-10-14 10 percent owner
LIMIT LIMIT 2015-07-28 director & 10 percent owner
LIMIT LIMIT 2015-07-01 10 percent owner
LIMIT LIMIT 2015-03-11 10 percent owner
LIMIT LIMIT 2015-01-22 10 percent owner
LIMIT LIMIT 2014-12-19 10 percent owner
LIMIT LIMIT 2014-01-30 10 percent owner
LIMIT LIMIT 2014-12-02 10 percent owner
LIMIT LIMIT 2014-11-25 10 percent owner
LIMIT LIMIT 2014-10-08 10 percent owner
LIMIT LIMIT 2014-08-27 10 percent owner
LIMIT LIMIT 2012-03-07 10 percent owner
LIMIT LIMIT 2014-04-02 10 percent owner
LIMIT LIMIT 2013-05-22 10 percent owner
LIMIT LIMIT 2013-12-05 director & 10 percent owner
LIMIT LIMIT 2013-10-29 10 percent owner
LIMIT LIMIT 2013-08-15 10 percent owner
LIMIT LIMIT 2012-10-11 10 percent owner
LIMIT LIMIT 2012-10-29 10 percent owner
LIMIT LIMIT 2012-03-28 10 percent owner
LIMIT LIMIT 2012-02-29 10 percent owner
LIMIT LIMIT 2011-08-08 10 percent owner
LIMIT LIMIT 2006-05-23 10 percent owner
LIMIT LIMIT 2011-03-10 10 percent owner
LIMIT LIMIT 2010-06-23 10 percent owner
LIMIT LIMIT 2009-05-08 10 percent owner
LIMIT LIMIT 2009-02-20 10 percent owner
LIMIT LIMIT 2006-05-09 10 percent owner
LIMIT LIMIT 2003-12-11 10 percent owner
LIMIT LIMIT 2009-04-03 10 percent owner
LIMIT LIMIT 2016-02-10 director & 10 percent owner
LIMIT LIMIT 2016-02-10 director & 10 percent owner

M James Barrett Latest Holdings Summary

M James Barrett currently owns a total of 29 stocks. Among these stocks, M James Barrett owns 9,681,633 shares of Tesaro Inc (TSRO) as of March 6, 2018, with a value of $726 Million and a weighting of 30.56%. M James Barrett owns 22,603,013 shares of iShares Indl/Office Real Estate Capped (FNIO) as of February 6, 2012, with a value of $721 Million and a weighting of 30.35%. M James Barrett also owns 4,909,956 shares of Rhythm Pharmaceuticals Inc (RYTM) as of October 10, 2017, with a value of $313 Million and a weighting of 13.18%. The other 26 stocks Ra Pharmaceuticals Inc (RARX) , Echo Global Logistics Inc (ECHO) , Groupon Inc (GRPN) , Boingo Wireless Inc (WIFI) , Ardelyx Inc (ARDX) , Liquidia Corp (LQDA) , Amicus Therapeutics Inc (FOLD) , Adaptimmune Therapeutics PLC (ADAP) , InnerWorkings Inc (INWK) , Senseonics Holdings Inc (SENS) , Millennial Media Inc (MM) , Epizyme Inc (EPZM) , Supernus Pharmaceuticals Inc (SUPN) , Surface Oncology Inc (SURF) , Mersana Therapeutics Inc (MRSN) , GlycoMimetics Inc (GLYC) , Tableau Software Inc (DATA) , Catalyst Biosciences Inc (CBIO) , Dermira Inc (DERM) , Proteostasis Therapeutics Inc (PTI) , Interleukin Genetics Inc (ILIU) , Clovis Oncology Inc (CLVSQ) , TRACON Pharmaceuticals Inc (TCON) , Novation Companies Inc (NOVCQ) , Zosano Pharma Corp (ZSANQ) , Appian Corp (APPN) have a combined weighting of 25.91% among all his current holdings.

Latest Holdings of M James Barrett

Ticker Company Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
TSRO Tesaro Inc 2018-03-06 9,681,633 74.96 725,735,210
FNIO iShares Indl/Office Real Estate Capped 2012-02-06 22,603,013 31.89 720,810,085
RYTM Rhythm Pharmaceuticals Inc 2017-10-10 4,909,956 63.76 313,058,795
RARX Ra Pharmaceuticals Inc 2016-10-31 3,490,073 47.99 167,488,603
ECHO Echo Global Logistics Inc 2012-02-29 2,020,219 48.24 97,455,365
GRPN Groupon Inc 2013-08-15 3,709,248 19.89 73,776,943
WIFI Boingo Wireless Inc 2013-12-11 4,467,960 13.99 62,506,760
ARDX Ardelyx Inc 2016-07-18 8,752,543 5.26 46,038,376
LQDA Liquidia Corp 2018-07-30 2,484,870 14.12 35,086,364
FOLD Amicus Therapeutics Inc 2012-03-07 4,584,311 7.35 33,694,686
ADAP Adaptimmune Therapeutics PLC 2018-09-07 82,978,668 0.27 22,014,241
INWK InnerWorkings Inc 2012-02-29 6,029,190 2.99 18,027,278
SENS Senseonics Holdings Inc 2017-06-01 22,557,951 0.76 17,035,765
MM Millennial Media Inc 2012-10-29 8,196,614 1.75 14,344,075
EPZM Epizyme Inc 2016-01-12 6,260,851 1.47 9,203,451
SUPN Supernus Pharmaceuticals Inc 2015-12-08 230,710 32.22 7,433,476
SURF Surface Oncology Inc 2018-04-23 3,312,877 1.07 3,544,778
MRSN Mersana Therapeutics Inc 2017-07-03 8,140,138 0.36 2,962,196
GLYC GlycoMimetics Inc 2018-05-10 9,089,041 0.26 2,372,240
DATA Tableau Software Inc 2014-08-25 6,969 169.53 1,181,455
CBIO Catalyst Biosciences Inc 2013-12-05 43,462 7.67 333,332
DERM Dermira Inc 2014-10-02 17,241 18.75 323,269
PTI Proteostasis Therapeutics Inc 2017-12-18 277,731 1.11 308,281
ILIU Interleukin Genetics Inc 2016-07-29 55,418,811 0.00 249,385
CLVSQ Clovis Oncology Inc 2015-05-15 1,141,038 0.02 17,116
TCON TRACON Pharmaceuticals Inc 2018-03-27 17,330 0.03 558
NOVCQ Novation Companies Inc 2006-05-15 1,225,179 0.00 123
ZSANQ Zosano Pharma Corp 2017-02-13 1,361 0.00 0
APPN Appian Corp 2017-11-27 0 31.32 0

Holding Weightings of M James Barrett


M James Barrett Form 4 Trading Tracker

According to the SEC Form 4 filings, M James Barrett has made a total of 0 transactions in Tesaro Inc (TSRO) over the past 5 years. The most-recent trade in Tesaro Inc is the acquisition of 116,445 shares on March 6, 2018, which cost M James Barrett around $7 Million.

According to the SEC Form 4 filings, M James Barrett has made a total of 0 transactions in iShares Indl/Office Real Estate Capped (FNIO) over the past 5 years. The most-recent trade in iShares Indl/Office Real Estate Capped is the sale of 23,687 shares on February 6, 2012, which brought M James Barrett around $545,512.

According to the SEC Form 4 filings, M James Barrett has made a total of 0 transactions in Rhythm Pharmaceuticals Inc (RYTM) over the past 5 years. The most-recent trade in Rhythm Pharmaceuticals Inc is the acquisition of 550,000 shares on October 10, 2017, which cost M James Barrett around $9 Million.

More details on M James Barrett's insider transactions can be found in the Insider Trading History of M James Barrett table.

Insider Trading History of M James Barrett

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.

M James Barrett Trading Performance

GuruFocus tracks the stock performance after each of M James Barrett's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by M James Barrett is 22.9%. GuruFocus also compares M James Barrett's trading performance to market benchmark return within the same time period. The performance of stocks bought by M James Barrett within 3 months outperforms 20 times out of 31 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how M James Barrett'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 M James Barrett

Average Return

LIMIT
Average return per transaction

Outperforming Transactions

LIMIT
11 out of 29 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(%) 9.19 LIMIT LIMIT LIMIT LIMIT LIMIT
Relative Return to S&P 500(%) 8.24 LIMIT LIMIT LIMIT LIMIT LIMIT

M James Barrett Ownership Network

Ownership Network List of M James Barrett

No Data

Ownership Network Relation of M James Barrett

Insider Network Chart

M James Barrett Owned Company Details

What does Senseonics Holdings Inc do?

Who are the key executives at Senseonics Holdings Inc?

M James Barrett is the director & 10 percent owner of Senseonics Holdings Inc. Other key executives at Senseonics Holdings Inc include Chief Financial Officer Frederick T. Sullivan , director & President & Chief Exec Officer Timothy T Goodnow , and VP Operations & Qual & Reg Mukul Jain .

Senseonics Holdings Inc (SENS) Insider Trades Summary

Over the past 18 months, M James Barrett made no insider transaction in Senseonics Holdings Inc (SENS). Other recent insider transactions involving Senseonics Holdings Inc (SENS) include a net purchase of 400,000 shares made by Douglas A Roeder , a net purchase of 315,000 shares made by Timothy T Goodnow , and a net purchase of 124,933 shares made by Frederick T. Sullivan .

In summary, during the past 3 months, insiders sold 0 shares of Senseonics Holdings Inc (SENS) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Senseonics Holdings Inc (SENS) were sold and 839,933 shares were bought by its insiders, resulting in a net purchase of 839,933 shares.

Senseonics Holdings Inc (SENS)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Senseonics Holdings Inc Insider Transactions

No Available Data

M James Barrett Mailing Address

Above is the net worth, insider trading, and ownership report for M James Barrett. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, M James Barrett's mailing address is: Baltimore Md 21202.