This follows approval of the transaction by Entrust shareholders during a special shareholders meeting held yesterday.

Entrust shareholders will receive $2.00 per share for each share of common stock they hold. The resulting transaction represents a total equity value of approximately $124 million.

"We could not be more excited to partner with Entrust's existing management team in this investment," said Scott Crabill, a managing partner at Thoma Bravo. "We look forward to supporting the company as it continues to provide its customer base with world class products."

"The Entrust board, executives, management and employees are equally excited about the positive stockholder vote and the new direction for the Entrust brand," said Entrust president and CEO Bill Conner. "Together with Thoma Bravo, Entrust will continue to innovate, provide leadership and secure our customers with solutions that are not only proven across the globe, but affordable and easy to use."

"Entrust is a leader in the authentication technology market, an industry that remains highly fragmented," said Seth Boro, a principal at Thoma Bravo. "We look forward to supplementing Entrust's organic growth initiatives with Thoma Bravo's 'buy-and-build' expertise."

"The company's recurring revenue streams, market leading products and diverse customer base of more than 2,000 organizations, were among the many very attractive attributes that led us to acquire Entrust," added Robert Sayle, a vice president at Thoma Bravo.

Kirkland & Ellis LLP provided legal counsel to Thoma Bravo.

Despite volatile market conditions, Thoma Bravo continues to complete software-related transactions, including three software platform investments and 12 add-on acquisitions, totaling more than $525 million since the beginning of 2008.