Shareholders of CECO Environmental (CECO) and Thermon Group Holdings (THR) have voted to approve the companies' planned merger, according to a Thursday joint statement.
In February, CECO Environmental agreed to combine with Thermon Group in a cash and equity transaction valued at about $2.2 billion.
The companies expect to close the transaction on or around June 1, according to the statement.
Shares of CECO Environmental were down more than 8% intraday.
Price: $79.35, Change: $-7.60, Percent Change: -8.74%