For Immediate Release - May 20, 2008

BEDFORD, Mass. (May 20, 2008) - Hologic, Inc. (NASDAQ: HOLX) ) today announced that Jack Cumming, Chief Executive Officer will be presenting at the NASDAQ 21st Investor Program being held May 21, 2008 at the Andaz Hotel in London.

Interested parties are invited to listen to a live audio webcast of Hologic’s investor presentation on Wednesday, May 21, 2008 at 10:45 a.m. BST on the investor section of the Company’s website at www.hologic.com/investor. A replay of the webcast will be available approximately twenty-four hours following the presentations.

Hologic, Inc. is a leading developer, manufacturer and supplier of premium diagnostics, medical imaging systems and surgical products dedicated to serving the healthcare needs of women. Hologic’s core business units are focused on breast health, diagnostics, GYN surgical, and skeletal health. Hologic provides a comprehensive suite of technologies with products for mammography and breast biopsy, radiation treatment for early-stage breast cancer, cervical cancer screening, treatment for menorrhagia, osteoporosis assessment, preterm birth risk assessment, and mini C-arm for extremity imaging.