Frank E Thomas - Net Worth and Insider Trading
Frank E Thomas Net Worth
The estimated net worth of Frank E Thomas is at least $2 Million dollars as of 2026-08-13. Frank E Thomas is the President & COO of AMAG Pharmaceuticals Inc and owns about 109,309 shares of AMAG Pharmaceuticals Inc (AMAG) stock worth over $2 Million. Frank E Thomas is also the Director of Larimar Therapeutics Inc and owns about 7,000 shares of Larimar Therapeutics Inc (LRMR) stock worth over $30,625. Details can be seen in Frank E Thomas'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 Frank E Thomas has not made any transactions after 2026-02-27 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Frank E Thomas
Frank E Thomas Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Frank E Thomas owns 4 companies in total, including Larimar Therapeutics Inc (LRMR) , Orchard Therapeutics PLC (ORTX) , and Spero Therapeutics Inc (SPRO) among others .
Click here to see the complete history of Frank E Thomas’s form 4 insider trades.
Insider Ownership Summary of Frank E Thomas
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| LRMR | Larimar Therapeutics Inc | 2026-02-27 | director |
| ORTX | Orchard Therapeutics PLC | 2020-01-01 | See Remarks |
| SPRO | Spero Therapeutics Inc | 2017-11-01 | director |
 | | 2017-02-23 | President & COO |
Frank E Thomas Latest Holdings Summary
Frank E Thomas currently owns a total of 2 stocks. Among these stocks, Frank E Thomas owns 109,309 shares of AMAG Pharmaceuticals Inc (AMAG) as of August 5, 2015, with a value of $2 Million and a weighting of 98%. Frank E Thomas also owns 7,000 shares of Larimar Therapeutics Inc (LRMR) as of February 27, 2026, with a value of $30,625 and a weighting of 2%.
Latest Holdings of Frank E Thomas
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| AMAG | AMAG Pharmaceuticals Inc | 2015-08-05 | 109,309 | 13.75 | 1,502,999 |
| LRMR | Larimar Therapeutics Inc | 2026-02-27 | 7,000 | 4.38 | 30,625 |
Holding Weightings of Frank E Thomas
Frank E Thomas Form 4 Trading Tracker
According to the SEC Form 4 filings, Frank E Thomas has made a total of 0 transactions in AMAG Pharmaceuticals Inc (AMAG) over the past 5 years. The most-recent trade in AMAG Pharmaceuticals Inc is the sale of 15,000 shares on August 5, 2015, which brought Frank E Thomas around $1 Million.
According to the SEC Form 4 filings, Frank E Thomas has made a total of 2 transactions in Larimar Therapeutics Inc (LRMR) over the past 5 years, including 2 buys and 0 sells. The most-recent trade in Larimar Therapeutics Inc is the acquisition of 5,000 shares on February 27, 2026, which cost Frank E Thomas around $25,000.
Insider Trading History of Frank E Thomas
* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.
- 1
Frank E Thomas Trading Performance
GuruFocus tracks the stock performance after each of Frank E Thomas's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Frank E Thomas is -17.29%. GuruFocus also compares Frank E Thomas's trading performance to market benchmark return within the same time period. The performance of stocks bought by Frank E Thomas within 3 months outperforms 1 times out of 6 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Frank E Thomas's insider trading performs compared to the benchmark.
Performance of Frank E Thomas
Average Return
Outperforming Transactions
| 1 Month | 3 Months | 6 Months | 1 Year | 2 Years | 3 Years | |
|---|---|---|---|---|---|---|
| Return(%) | -8.37 | | | | | |
| Relative Return to S&P 500(%) | -9.37 | | | | | |
Frank E Thomas Ownership Network
Ownership Network List of Frank E Thomas
Ownership Network Relation of Frank E Thomas
Frank E Thomas Owned Company Details
What does Larimar Therapeutics Inc do?
Who are the key executives at Larimar Therapeutics Inc?
Frank E Thomas is the director of Larimar Therapeutics Inc. Other key executives at Larimar Therapeutics Inc include 10 percent owner & other: Possible Member of 10% Group James E Flynn , Chief Development Officer Gopi Shankar , and Chief Medical Officer Russell Clayton .
Larimar Therapeutics Inc (LRMR) Insider Trades Summary
Over the past 18 months, Frank E Thomas made 1 insider transaction in Larimar Therapeutics Inc (LRMR) with a net purchase of 5,000. Other recent insider transactions involving Larimar Therapeutics Inc (LRMR) include a net purchase of 14,375,000 shares made by James E Flynn , a net purchase of 150,000 shares made by Thomas Edward Hamilton , and a net purchase of 5,000 shares made by Jeffrey W Sherman .
In summary, during the past 3 months, insiders sold 0 shares of Larimar Therapeutics Inc (LRMR) in total and bought 50,000 shares, with a net purchase of 50,000 shares. During the past 18 months, 0 shares of Larimar Therapeutics Inc (LRMR) were sold and 14,535,000 shares were bought by its insiders, resulting in a net purchase of 14,535,000 shares.
Larimar Therapeutics Inc (LRMR)'s detailed insider trading history can be found in Insider Trading Tracker table.
Larimar Therapeutics Inc Insider Transactions
Frank E Thomas Mailing Address
Above is the net worth, insider trading, and ownership report for Frank E Thomas. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Frank E Thomas's mailing address is: Boston Ma 02210.
We'd love to learn more about your experiences on GuruFocus.com and how we can improve!
Take Survey
