Home Depot bought SRS Distribution — the subsidiary that’s acquiring GMS — last year for $18.25 billion, in the largest acquisition in its history. Texas-based SRS sells supplies to professionals in the landscaping, roofing and pool businesses and it has bought up many other smaller suppliers as it’s grown.

The retailer’s SRS subsidiary will initiate a cash tender offer to acquire all GMS common stock for $110 per share.

A subsidiary of Home Depot’s SRS Distribution Inc., the supply company it bought last year, will start a cash tender offer to buy all outstanding shares of GMS for $110 per share. The total equity value of the transaction is approximately $4.3 billion. The deal is worth about $5.5 billion, including debt.