Never let it be said the Scorpio Tankers president Robert Bugbee is running out of options.

Bugbee on Thursday struck for the third time in four days on call options tied to a bullish belief in his company's share price, bringing his total outlay for the week to more than $3.6m.

Thursday's move was for 100,000 common shares at a price of $465,000 with a strike price of $15 and an expiration of January 2023.