One of Australia's richest men now owns a significant stake in Australian kingfish farmer Clean Seas Seafood, after the company issued a fundraising to enable its downsizing.

Following his most recent share purchases through various entities, billionaire Australian businessman Anthony Hall now owns an 11.58 percent share of the whitefish farmer.

Hall, who first bought into the company in August last year, snapping up 15,000 shares for AUD 9,424.04 (€5725.80/$6203.30) has since this September bought a further 21,893,378 shares, taking his total shares to 22,036,521.