Andi Case has exercised options for GBP 3.27m (4.02m) worth of the Clarksons' London-listed shares.
The shipbroker's chief executive moved on nearly 165,000 of the options yesterday.
But a regulatory disclosure filed today shows he quickly sold 84,300 shares at GBP 19.50 apiece to satisfy tax obligations, leaving him to pocket nearly 80,600 new shares worth GBP 1.6m at today's prices.
Options date back to 2007
The options had been granted to Case between 2007 and 2011.
