Group 1 - CPP Investments and Equinix have agreed to jointly acquire Nordic data center operator atNorth for a total transaction value of $4 billion, including debt [2][5] - CPP Investments will invest $1.6 billion to acquire a 60% stake in atNorth, while Equinix will hold a 40% stake [7] - The existing owner of atNorth, Partners Group, has committed to reinvest and buy back up to 10% of the shares after the sale [2][5] Group 2 - This investment enhances CPP Investments' global data center strategy and strengthens its presence in Europe [3][5] - Equinix stated that the transaction will solidify its existing data center operations in the Nordic region [3][5] - Both companies have previously collaborated on similar transactions, including a joint venture with the Government of Singapore Investment Corporation (GIC) to expand Equinix's data center business [3][5]