Mcgirr David W J - Net Worth and Insider Trading

Mcgirr David W J Net Worth

The estimated net worth of Mcgirr David W J is at least $10 Million dollars as of 2025-07-15. Mcgirr David W J is the Director of Insmed Inc and owns about 97,723 shares of Insmed Inc (INSM) stock worth over $10 Million. Mcgirr David W J is the Director of Rhythm Pharmaceuticals Inc and owns about 3,000 shares of Rhythm Pharmaceuticals Inc (RYTM) stock worth over $267,450. Mcgirr David W J is also the Director of Relypsa Inc and owns about 2,729 shares of Relypsa Inc (RLYP) stock worth over $87,301. Details can be seen in Mcgirr David W J'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 Mcgirr David W J has not made any transactions after 2025-06-04 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 Mcgirr David W J

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Mcgirr David W J Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Mcgirr David W J owns 6 companies in total, including Rhythm Pharmaceuticals Inc (RYTM) , X4 Pharmaceuticals Inc (XFOR) , and Insmed Inc (INSM) among others .

Click here to see the complete history of Mcgirr David W J’s form 4 insider trades.

Insider Ownership Summary of Mcgirr David W J

Ticker Company Transaction Date Type of Owner
RYTM Rhythm Pharmaceuticals Inc 2025-06-03 director
XFOR X4 Pharmaceuticals Inc 2017-11-15 director
INSM Insmed Inc 2025-06-04 director
LIMIT LIMIT 2019-06-25 director
LIMIT LIMIT 2017-06-28 director
LIMIT LIMIT 2016-09-01 director

Mcgirr David W J Latest Holdings Summary

Mcgirr David W J currently owns a total of 3 stocks. Among these stocks, Mcgirr David W J owns 97,723 shares of Insmed Inc (INSM) as of June 4, 2025, with a value of $10 Million and a weighting of 96.56%. Mcgirr David W J owns 3,000 shares of Rhythm Pharmaceuticals Inc (RYTM) as of June 3, 2025, with a value of $267,450 and a weighting of 2.59%. Mcgirr David W J also owns 2,729 shares of Relypsa Inc (RLYP) as of June 7, 2016, with a value of $87,301 and a weighting of 0.85%.

Latest Holdings of Mcgirr David W J

Ticker Company Latest Transaction Date Shares Owned Current Price ($) Current Value ($)
INSM Insmed Inc 2025-06-04 97,723 101.89 9,956,996
RYTM Rhythm Pharmaceuticals Inc 2025-06-03 3,000 89.15 267,450
RLYP Relypsa Inc 2016-06-07 2,729 31.99 87,301

Holding Weightings of Mcgirr David W J


Mcgirr David W J Form 4 Trading Tracker

According to the SEC Form 4 filings, Mcgirr David W J has made a total of 1 transactions in Insmed Inc (INSM) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Insmed Inc is the sale of 6,250 shares on June 4, 2025, which brought Mcgirr David W J around $451,562.

According to the SEC Form 4 filings, Mcgirr David W J has made a total of 1 transactions in Rhythm Pharmaceuticals Inc (RYTM) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Rhythm Pharmaceuticals Inc is the sale of 65,431 shares on June 3, 2025, which brought Mcgirr David W J around $4 Million.

According to the SEC Form 4 filings, Mcgirr David W J has made a total of 0 transactions in Relypsa Inc (RLYP) over the past 5 years. The most-recent trade in Relypsa Inc is the sale of 1,013 shares on June 7, 2016, which brought Mcgirr David W J around $19,591.

Insider Trading History of Mcgirr David W J

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.

Mcgirr David W J Trading Performance

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

Mcgirr David W J Ownership Network

Ownership Network List of Mcgirr David W J

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Ownership Network Relation of Mcgirr David W J

Insider Network Chart


Mcgirr David W J Owned Company Details

What does Rhythm Pharmaceuticals Inc do?

Who are the key executives at Rhythm Pharmaceuticals Inc?

Mcgirr David W J is the director of Rhythm Pharmaceuticals Inc. Other key executives at Rhythm Pharmaceuticals Inc include Corporate Controller & CAO Christopher Paul German , Chief Human Resources Officer Pamela J. Cramer , and CFO and Treasurer Hunter C Smith .

Rhythm Pharmaceuticals Inc (RYTM) Insider Trades Summary

Over the past 18 months, Mcgirr David W J made 1 insider transaction in Rhythm Pharmaceuticals Inc (RYTM) with a net sale of 65,431. Other recent insider transactions involving Rhythm Pharmaceuticals Inc (RYTM) include a net sale of 137,211 shares made by Pamela J. Cramer , a net sale of 155,853 shares made by Joseph Shulman , and a net sale of 118,525 shares made by Jennifer Chien .

In summary, during the past 3 months, insiders sold 226,124 shares of Rhythm Pharmaceuticals Inc (RYTM) in total and bought 0 shares, with a net sale of 226,124 shares. During the past 18 months, 920,276 shares of Rhythm Pharmaceuticals Inc (RYTM) were sold and 0 shares were bought by its insiders, resulting in a net sale of 920,276 shares.

Rhythm Pharmaceuticals Inc (RYTM)'s detailed insider trading history can be found in Insider Trading Tracker table.

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Rhythm Pharmaceuticals Inc Insider Transactions

No Available Data

Mcgirr David W J Mailing Address

Above is the net worth, insider trading, and ownership report for Mcgirr David W J. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Mcgirr David W J's mailing address is: Greenwich Ct 06830.