Stone Robert G Jr - Net Worth and Insider Trading
Stone Robert G Jr Net Worth
The estimated net worth of Stone Robert G Jr is at least $30 Million dollars as of 2025-05-06. Stone Robert G Jr is the Director of Kirby Corp and owns about 284,396 shares of Kirby Corp (KEX) stock worth over $30 Million. Details can be seen in Stone Robert G Jr'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 Stone Robert G Jr has not made any transactions after 2004-02-03 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Stone Robert G Jr
Stone Robert G Jr Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Stone Robert G Jr owns 1 companies in total, including Kirby Corp (KEX) .
Click here to see the complete history of Stone Robert G Jr’s form 4 insider trades.
Insider Ownership Summary of Stone Robert G Jr
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
KEX | Kirby Corp | 2004-02-03 | director |
Stone Robert G Jr Latest Holdings Summary
Stone Robert G Jr currently owns a total of 1 stock. Stone Robert G Jr owns 284,396 shares of Kirby Corp (KEX) as of February 3, 2004, with a value of $30 Million.
Latest Holdings of Stone Robert G Jr
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
KEX | Kirby Corp | 2004-02-03 | 284,396 | 104.53 | 29,727,914 |
Holding Weightings of Stone Robert G Jr
Stone Robert G Jr Form 4 Trading Tracker
According to the SEC Form 4 filings, Stone Robert G Jr has made a total of 0 transactions in Kirby Corp (KEX) over the past 5 years. The most-recent trade in Kirby Corp is the sale of 10,000 shares on February 3, 2004, which brought Stone Robert G Jr around $161,900.
Insider Trading History of Stone Robert G Jr
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Stone Robert G Jr Trading Performance
Stone Robert G Jr Ownership Network
Ownership Network List of Stone Robert G Jr
Ownership Network Relation of Stone Robert G Jr

Stone Robert G Jr Owned Company Details
What does Kirby Corp do?
Who are the key executives at Kirby Corp?
Stone Robert G Jr is the director of Kirby Corp. Other key executives at Kirby Corp include VP - CIO Scott P Miller , VP - Human Resources Christian G. O'neil , and Controller Ronald A Dragg .
Kirby Corp (KEX) Insider Trades Summary
Over the past 18 months, Stone Robert G Jr made no insider transaction in Kirby Corp (KEX). Other recent insider transactions involving Kirby Corp (KEX) include a net sale of 60,427 shares made by Christian G. O'neil , a net sale of 16,270 shares made by Scott P Miller , and a net sale of 54,358 shares made by David W Grzebinski .
In summary, during the past 3 months, insiders sold 0 shares of Kirby Corp (KEX) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 235,947 shares of Kirby Corp (KEX) were sold and 0 shares were bought by its insiders, resulting in a net sale of 235,947 shares.
Kirby Corp (KEX)'s detailed insider trading history can be found in Insider Trading Tracker table.
Kirby Corp Insider Transactions
Stone Robert G Jr Mailing Address
Above is the net worth, insider trading, and ownership report for Stone Robert G Jr. Currently GuruFocus does not have mailing address information for Stone Robert G Jr.