Jackson Square Partners, LLC is an employee-owned long-only, growth-oriented investment manager of public equities. Jackson Square's approach has been honed by a team with a history spanning more than four decades, resulting in a unifying investment philosophy of concentrated, long-term investing focused on growth in intrinsic business value. Jackson Square is an employee-owned and controlled firm. As long-term strategic partner to Jackson Square, AMG holds a minority equity investment in the firm; the key employee group at Jackson Square retains operational and governance control.