Sterling Group, a private equity investment firm, completed the acquisition of Ergotron, a maker of ergonomic desks and office accessories, from Melrose, a global investment company, for $650m. "Ergotron is a pioneer in ergonomic solutions, and its strong market position and commitment to its customers and employees seamlessly align with Sterling's employee-focused approach to partnerships. We look forward to supporting the management team as they look to accelerate growth," Brad Staller, The Sterling Group Partner.