Dirk A Kempthorne - Net Worth and Insider Trading
Dirk A Kempthorne Net Worth
The estimated net worth of Dirk A Kempthorne is at least $2 Million dollars as of 2025-05-06. Dirk A Kempthorne is the Director of FMC Corp and owns about 35,783 shares of FMC Corp (FMC) stock worth over $1 Million. Dirk A Kempthorne is the Director of Robert Half Inc and owns about 12,310 shares of Robert Half Inc (RHI) stock worth over $541,763. Dirk A Kempthorne is also the Director of Olympic Steel Inc and owns about 0 shares of Olympic Steel Inc (ZEUS) stock worth over $0. Details can be seen in Dirk A Kempthorne'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 Dirk A Kempthorne has not made any transactions after 2024-11-26 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Dirk A Kempthorne
Dirk A Kempthorne Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Dirk A Kempthorne owns 3 companies in total, including FMC Corp (FMC) , Robert Half Inc (RHI) , and Olympic Steel Inc (ZEUS) .
Click here to see the complete history of Dirk A Kempthorne’s form 4 insider trades.
Insider Ownership Summary of Dirk A Kempthorne
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
FMC | FMC Corp | 2018-08-28 | director |
RHI | Robert Half Inc | 2024-11-26 | director |
ZEUS | Olympic Steel Inc | 2023-03-14 | director |
Dirk A Kempthorne Latest Holdings Summary
Dirk A Kempthorne currently owns a total of 3 stocks. Among these stocks, Dirk A Kempthorne owns 35,783 shares of FMC Corp (FMC) as of August 28, 2018, with a value of $1 Million and a weighting of 70.34%. Dirk A Kempthorne owns 12,310 shares of Robert Half Inc (RHI) as of November 26, 2024, with a value of $541,763 and a weighting of 29.66%. Dirk A Kempthorne also owns 0 shares of Olympic Steel Inc (ZEUS) as of March 14, 2023, with a value of $0 and a weighting of 0%.
Latest Holdings of Dirk A Kempthorne
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
FMC | FMC Corp | 2018-08-28 | 35,783 | 35.91 | 1,284,968 |
RHI | Robert Half Inc | 2024-11-26 | 12,310 | 44.01 | 541,763 |
ZEUS | Olympic Steel Inc | 2023-03-14 | 0 | 32.93 | 0 |
Holding Weightings of Dirk A Kempthorne
Dirk A Kempthorne Form 4 Trading Tracker
According to the SEC Form 4 filings, Dirk A Kempthorne has made a total of 0 transactions in FMC Corp (FMC) over the past 5 years. The most-recent trade in FMC Corp is the acquisition of 1,173 shares on August 28, 2018, which cost Dirk A Kempthorne around $101,019.
According to the SEC Form 4 filings, Dirk A Kempthorne has made a total of 6 transactions in Robert Half Inc (RHI) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Robert Half Inc is the sale of 1,032 shares on November 26, 2024, which brought Dirk A Kempthorne around $76,729.
According to the SEC Form 4 filings, Dirk A Kempthorne has made a total of 1 transactions in Olympic Steel Inc (ZEUS) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Olympic Steel Inc is the sale of 1,000 shares on March 14, 2023, which brought Dirk A Kempthorne around $51,270.
Insider Trading History of Dirk A Kempthorne
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Dirk A Kempthorne Trading Performance
GuruFocus tracks the stock performance after each of Dirk A Kempthorne's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Dirk A Kempthorne is -3.06%. GuruFocus also compares Dirk A Kempthorne's trading performance to market benchmark return within the same time period. The performance of stocks bought by Dirk A Kempthorne within 3 months outperforms 1 times out of 4 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Dirk A Kempthorne's insider trading performs compared to the benchmark.
Performance of Dirk A Kempthorne
Dirk A Kempthorne Ownership Network
Ownership Network List of Dirk A Kempthorne
Ownership Network Relation of Dirk A Kempthorne

Dirk A Kempthorne Owned Company Details
What does FMC Corp do?
Who are the key executives at FMC Corp?
Dirk A Kempthorne is the director of FMC Corp. Other key executives at FMC Corp include CEO & President & Chairman of Bd Pierre R Brondeau , EVP & President & FMC Americas Ronaldo Pereira , and EVP & General Counsel & Sec. Michael Finian Reilly .
FMC Corp (FMC) Insider Trades Summary
Over the past 18 months, Dirk A Kempthorne made no insider transaction in FMC Corp (FMC). Other recent insider transactions involving FMC Corp (FMC) include a net sale of 400 shares made by , a net purchase of 54,000 shares made by Pierre R Brondeau , and a net purchase of 6,000 shares made by Carol Anthony Davidson .
In summary, during the past 3 months, insiders sold 0 shares of FMC Corp (FMC) in total and bought 65,600 shares, with a net purchase of 65,600 shares. During the past 18 months, 7,895 shares of FMC Corp (FMC) were sold and 71,595 shares were bought by its insiders, resulting in a net purchase of 63,700 shares.
FMC Corp (FMC)'s detailed insider trading history can be found in Insider Trading Tracker table.
FMC Corp Insider Transactions
Dirk A Kempthorne Mailing Address
Above is the net worth, insider trading, and ownership report for Dirk A Kempthorne. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Dirk A Kempthorne's mailing address is: Philadelphia Pa 19103.