The chief operating officer of Hansen Natural's Monster Beverage division in the US has quit the company after less than a year in the post.

Hansen confirmed in a filing to the SEC on Monday (5 April) that Nick Gagliardi, who was appointed to the position at the energy drink unit last July, tendered his resignation late last week.

Gagliardi left the company “to pursue other business interests”, Hansen said, without specifying further.

“Mr. Gagliardi’s responsibilities will be handled by other senior executives,” the filing concluded.

Back in August, Hansen secured the presence of Monster in the Carl's Jr and Hardee's fast food restaurants in the US.