CMC Materials' $6.5 billion sale approved by stockholders

AURORA - CMC Materials Inc. Thursday said its stockholders voted to approve a previously announced merger agreement, valued at $6.5 billion, with Entegris Inc.

Entegris will acquire CMC Materials in a cash and stock transaction with an enterprise value of approximately $6.5 billion at the time of announcement in December.

Aurora-based CMC is a leading global supplier of consumable materials primarily to semiconductor manufacturers.

Preliminary voting results indicate the merger agreement proposal was approved by about 84% of the outstanding shares of CMC Materials common stock entitled to vote at the special meeting of stockholders, the company said.

The final voting results will be filed with the U.S. Securities and Exchange Commission. The sale is expected to close in the second half of 2022, subject to the satisfaction of customary closing conditions, CMC said.

Based in Massachusetts, Entegris also is a supplier of advanced materials and process solutions for the semiconductor and other high-technology industries. Entegris has about 6,600 employees throughout its global operations.