X0306 4 2019-12-04 0000859737 HOLOGIC INC HOLX 0001748821 COHN BENJAMIN JORDAN 250 CAMPUS DRIVE MARLBOROUGH MA 01752 1 Principal Accounting Officer Common Stock 2019-12-04 4 M 0 4379 21.45 A 22541 D Common Stock 2019-12-04 4 S 0 4379 52.118 D 18162 D Non-qualified Stock Option (Right to Buy) 21.45 2019-12-04 4 M 0 4379 0 D 2020-11-18 Common Stock 4379 0 D The price reported is the weighted average price per share. Shares were sold in multiple transactions at prices ranging from $52.11 to $52.14 per share. The Reporting Person will provide, upon request by the Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares sold at each price. This option to purchase common stock became exercisable in installments on each of the first 5 anniversaries of the grant date, November 18, 2013. /s/ Patricia K. Dolan, attorney-in-fact for Mr. Cohn 2019-12-05