Mr Gore, pictured, reportedly triggered a share-option package last week given to him by Apple's founder.
He has sat on Apple's board for a decade. Under the terms of the award, Mr Gore was given the right to buy 59,000 Apple shares for $7.475 each.
The shares closed at $500 on Friday, meaning his investment has grown from $440,000 (€331,000) to $29.5m (€22.1m) in a decade. Mr Gore is free to sell the shares at any time.
Earlier this month, 'Forbes' "conservatively" estimated Mr Gore's net worth was at least $300m (€225m). (© Daily Telegraph, London)