It comes just days after the resignation of Megaport’s company secretary Emily McCaffery.

The company also reported a $US9 million first half loss and there had been reports that institutional investors were concerned about the significant fall in the share price, which is down 60 per cent on a year ago, including almost 10 per cent this morning.

Slattery chairs Megaport and retains a much reduced shareholding of about 5 per cent in the company he founded.

Megaport said this morning that English had resigned, effective today but would remain available to advise and assist the company until April 30.

Slattery said English had provided outstanding leadership for the past six years during which he had led the business through its “scale up and scale out” transformation.

“Vincent has been responsible for driving the vision of the company through a period of incredible growth and for creating a legacy which sets the company up for accelerated revenue growth and operational success in the future,” Slattery said.

Slattery has also previously provided strong support for English against media reports on his salary.