Seaspan Corp has formally been taken into private hands.

The stock of Atlas Corp — its New York Stock Exchange-listed asset-management parent company — will shortly be suspended from trading and the company delisted.

Shareholders have today requested that Atlas’ common shares cease trading “with immediate effect”, although preferred shares will continue to trade.

That will set the seal on a $10.9bn take-private merger plan launched several months ago by majority shareholders of Atlas.