For Immediate Release - July 23, 2007

BEDFORD, Mass. (July 23, 2007) - Hologic, Inc. (NASDAQ: HOLX), a leading provider of state-of-the-art diagnostic and digital imaging systems directed towards women’s health, today announced plans to release its third quarter fiscal 2007 operating results on Tuesday, July 31, 2007 at 8:00 a.m. (eastern). In conjunction with the release, management will host a conference call on Tuesday, July 31, 2007 at 9:30 a.m. (eastern).

Interested participants may listen to the call by dialing 800-311-0799 or 719-457-2695 for international callers and referencing code 8843154 approximately 15 minutes prior to the call on July 31st. For those unable to participate in the live broadcast, a replay will be available one hour after the call ends through August 3, 2007 at 888-203-1112 or 719-457-0820 for international callers, access code 8843154.

The Company will also provide a live webcast of the call. Interested participants may access the webcast at the Company’s website at www.hologic.com. A replay of the call will be archived on the Company’s website.

Hologic, Inc. is a leading developer, manufacturer and supplier of premium diagnostic and medical imaging systems dedicated to serving the healthcare needs of women, and a leading developer of innovative imaging technology for digital radiography and breast imaging. Hologic's core business units are focused on mammography and breast biopsy, osteoporosis assessment, and mini C-arm and extremity MRI imaging for orthopedic applications.