Hologic Stockholders Approve Amendment to Increase Authorized Shares
(2-for-1 Stock Split to Proceed as Planned)

BEDFORD, Mass., Nov. 15, 2005 /PRNewswire-FirstCall/ -- Hologic, Inc. (NASDAQ: HOLX), a leading provider of state-of-the-art digital imaging systems directed towards women's health, announced that its stockholders at a special meeting held today approved an amendment to the Company's Certificate of Incorporation to increase the number of shares of common stock the Company has authority to issue from 30 million to 90 million. As a result of the amendment, the previously announced two-for-one stock split to be effected as a stock dividend, will be paid on November 30, 2005 to stockholders of record on November 16, 2005.

About Hologic

Hologic Inc. is a leading developer, manufacturer and supplier of medical imaging systems dedicated to serving the healthcare needs of women, and a leading developer of state-of-the-art digital imaging technology for general radiography and mammography applications. Hologic's core business units are focused on osteoporosis assessment, mammography and breast biopsy, direct-to- digital X-ray for general radiography applications and mini C-arm imaging for orthopedic applications. For more information visit

   Glenn P. Muir                      Frances Crecco
   Executive Vice President & CFO     Director, Investor Relations
   Hologic, Inc.                      Hologic, Inc.
   (781) 999-7300                     (781) 999-7377

SOURCE: Hologic, Inc.

CONTACT: Glenn P. Muir, Executive Vice President & CFO, +1-781-999-7300,
or Frances Crecco, Director, Investor Relations, +1-781-999-7377, both of
Hologic, Inc.

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