G&J Watkin Jones 1992 Settlement Trust, for which the trustees are Mark Watkin Jones, Glyn Watkin Jones and Jennifer Watkin Jones, and the company’s CFO Philip Byrom sold 25m shares in Watkin Jones for 210p.
Following the deal the trust and Mark Jones are left holding around 8% of the business.
It is the second big pay day for the family since the business went public. Two years ago family members cashed in nearly £70m worth of stock.
The Bangor-based firm, which was originally founded in 1791, was floated on the AIM junior market raising £131m from offering 45% of the firm’s stock.