The company announced in January it was selling the division to the private equity firm Clayton, Dubilier and Rice for £308 million (US$417.5 million).
Latest In Wolseley
Acquisition expands company's presence in Arkansas.
Simon Nicholls will not take up his position as chief financial officer.
Company had sued former employees in 2015 after they resigned to join Lockwood.
Acquisition of Oklahoma-based company expands Ferguson's presence.
CEO: 'Our business does not yield to grand gestures.'
Ferguson sales grow 4.3 percent on a like-for-like basis in the first half.
