Michael Thomas Heffernan - Net Worth and Insider Trading
Michael Thomas Heffernan Net Worth
The estimated net worth of Michael Thomas Heffernan is at least $803,897 dollars as of 2025-05-07. Michael Thomas Heffernan is the Director of Collegium Pharmaceutical Inc and owns about 28,023 shares of Collegium Pharmaceutical Inc (COLL) stock worth over $760,965. Michael Thomas Heffernan is also the Director of Trevi Therapeutics Inc and owns about 6,351 shares of Trevi Therapeutics Inc (TRVI) stock worth over $42,933. Details can be seen in Michael Thomas Heffernan'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 Thomas Heffernan has not made any transactions after 2022-12-27 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Michael Thomas Heffernan
Michael Thomas Heffernan Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Michael Thomas Heffernan owns 8 companies in total, including Collegium Pharmaceutical Inc (COLL) , Trevi Therapeutics Inc (TRVI) , and Akebia Therapeutics Inc (AKBA) among others .
Click here to see the complete history of Michael Thomas Heffernan’s form 4 insider trades.
Insider Ownership Summary of Michael Thomas Heffernan
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
COLL | Collegium Pharmaceutical Inc | 2022-12-27 | director |
TRVI | Trevi Therapeutics Inc | 2019-05-09 | director |
AKBA | Akebia Therapeutics Inc | 2018-12-12 | director |
![]() | ![]() | 2020-01-31 | director |
![]() | ![]() | 2018-12-12 | director |
![]() | ![]() | 2016-02-10 | director |
![]() | ![]() | 2020-12-08 | director |
![]() | ![]() | 2022-10-03 | director |
Michael Thomas Heffernan Latest Holdings Summary
Michael Thomas Heffernan currently owns a total of 2 stocks. Among these stocks, Michael Thomas Heffernan owns 28,023 shares of Collegium Pharmaceutical Inc (COLL) as of December 27, 2022, with a value of $760,965 and a weighting of 94.66%. Michael Thomas Heffernan also owns 6,351 shares of Trevi Therapeutics Inc (TRVI) as of May 9, 2019, with a value of $42,933 and a weighting of 5.34%.
Latest Holdings of Michael Thomas Heffernan
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
COLL | Collegium Pharmaceutical Inc | 2022-12-27 | 28,023 | 27.16 | 760,965 |
TRVI | Trevi Therapeutics Inc | 2019-05-09 | 6,351 | 6.76 | 42,933 |
Holding Weightings of Michael Thomas Heffernan
Michael Thomas Heffernan Form 4 Trading Tracker
According to the SEC Form 4 filings, Michael Thomas Heffernan has made a total of 6 transactions in Collegium Pharmaceutical Inc (COLL) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Collegium Pharmaceutical Inc is the sale of 25,041 shares on December 27, 2022, which brought Michael Thomas Heffernan around $590,467.
According to the SEC Form 4 filings, Michael Thomas Heffernan has made a total of 0 transactions in Trevi Therapeutics Inc (TRVI) over the past 5 years. The most-recent trade in Trevi Therapeutics Inc is the acquisition of 2,500 shares on May 9, 2019, which cost Michael Thomas Heffernan around $25,000.
Insider Trading History of Michael Thomas Heffernan
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Michael Thomas Heffernan Trading Performance
GuruFocus tracks the stock performance after each of Michael Thomas Heffernan's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Michael Thomas Heffernan is -40.12%. GuruFocus also compares Michael Thomas Heffernan's trading performance to market benchmark return within the same time period. The performance of stocks bought by Michael Thomas Heffernan 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 Michael Thomas Heffernan's insider trading performs compared to the benchmark.
Performance of Michael Thomas Heffernan
Michael Thomas Heffernan Ownership Network
Ownership Network List of Michael Thomas Heffernan
Ownership Network Relation of Michael Thomas Heffernan

Michael Thomas Heffernan Owned Company Details
What does Collegium Pharmaceutical Inc do?
Who are the key executives at Collegium Pharmaceutical Inc?
Michael Thomas Heffernan is the director of Collegium Pharmaceutical Inc. Other key executives at Collegium Pharmaceutical Inc include EVP & Chief Financial Officer Tupper Colleen , EVP & Chief Commercial Officer Scott Dreyer , and EVP and General Counsel Shirley R. Kuhlmann .
Collegium Pharmaceutical Inc (COLL) Insider Trades Summary
Over the past 18 months, Michael Thomas Heffernan made no insider transaction in Collegium Pharmaceutical Inc (COLL). Other recent insider transactions involving Collegium Pharmaceutical Inc (COLL) include a net sale of 201,056 shares made by Scott Dreyer , a net sale of 184,392 shares made by Shirley R. Kuhlmann , and a net sale of 42,187 shares made by Tupper Colleen .
In summary, during the past 3 months, insiders sold 168,024 shares of Collegium Pharmaceutical Inc (COLL) in total and bought 0 shares, with a net sale of 168,024 shares. During the past 18 months, 539,338 shares of Collegium Pharmaceutical Inc (COLL) were sold and 0 shares were bought by its insiders, resulting in a net sale of 539,338 shares.
Collegium Pharmaceutical Inc (COLL)'s detailed insider trading history can be found in Insider Trading Tracker table.
Collegium Pharmaceutical Inc Insider Transactions
Michael Thomas Heffernan Mailing Address
Above is the net worth, insider trading, and ownership report for Michael Thomas Heffernan. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Michael Thomas Heffernan's mailing address is: Cary Nc 27518.