Derek Brummer - Net Worth and Insider Trading
Derek Brummer Net Worth
The estimated net worth of Derek Brummer is at least $6 Million dollars as of 2026-07-15. Derek Brummer is the President, Mortgage Insurance of Radian Group Inc and owns about 157,330 shares of Radian Group Inc (RDN) stock worth over $6 Million. Details can be seen in Derek Brummer'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 Derek Brummer has not made any transactions after 2024-12-06 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Derek Brummer
Derek Brummer Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Derek Brummer owns 1 companies in total, including Radian Group Inc (RDN) .
Click here to see the complete history of Derek Brummer’s form 4 insider trades.
Insider Ownership Summary of Derek Brummer
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| RDN | Radian Group Inc | 2024-12-06 | Chief Risk Officer |
Derek Brummer Latest Holdings Summary
Derek Brummer currently owns a total of 1 stock. Derek Brummer owns 157,330 shares of Radian Group Inc (RDN) as of December 6, 2024, with a value of $6 Million.
Latest Holdings of Derek Brummer
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| RDN | Radian Group Inc | 2024-12-06 | 157,330 | 36.90 | 5,805,477 |
Holding Weightings of Derek Brummer
Derek Brummer Form 4 Trading Tracker
According to the SEC Form 4 filings, Derek Brummer has made a total of 5 transactions in Radian Group Inc (RDN) over the past 5 years, including 0 buys and 5 sells. The most-recent trade in Radian Group Inc is the sale of 29,205 shares on December 6, 2024, which brought Derek Brummer around $1 Million.
Insider Trading History of Derek Brummer
* 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.
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Derek Brummer Trading Performance
GuruFocus tracks the stock performance after each of Derek Brummer's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Derek Brummer is 22.05%. GuruFocus also compares Derek Brummer's trading performance to market benchmark return within the same time period. The performance of stocks bought by Derek Brummer within 3 months outperforms 3 times out of 3 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Derek Brummer's insider trading performs compared to the benchmark.
Performance of Derek Brummer
Derek Brummer Ownership Network
Ownership Network List of Derek Brummer
Ownership Network Relation of Derek Brummer

Derek Brummer Owned Company Details
What does Radian Group Inc do?
Who are the key executives at Radian Group Inc?
Derek Brummer is the Chief Risk Officer of Radian Group Inc. Other key executives at Radian Group Inc include Chief Executive Officer- Elect Michael S Weinbach , SVP & Secretary and General Cou Edward J Hoffman , and Sr. EVP & Co-Head of MI Stephen Keleher .
Radian Group Inc (RDN) Insider Trades Summary
Over the past 18 months, Derek Brummer made no insider transaction in Radian Group Inc (RDN). Other recent insider transactions involving Radian Group Inc (RDN) include a net sale of 200,000 shares made by Richard G Thornberry , a net sale of 120,000 shares made by Edward J Hoffman , and a net sale of 17,385 shares made by Howard Bernard Culang .
In summary, during the past 3 months, insiders sold 74,725 shares of Radian Group Inc (RDN) in total and bought 170,000 shares, with a net purchase of 95,275 shares. During the past 18 months, 401,151 shares of Radian Group Inc (RDN) were sold and 170,000 shares were bought by its insiders, resulting in a net sale of 231,151 shares.
Radian Group Inc (RDN)'s detailed insider trading history can be found in Insider Trading Tracker table.
Radian Group Inc Insider Transactions
Derek Brummer Mailing Address
Above is the net worth, insider trading, and ownership report for Derek Brummer. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Derek Brummer's mailing address is: Philadelphia Pa 19103.