X0306 4 2012-07-12 0 0001389072 HeartWare International, Inc. HTWR 0001404955 Harrison Seth Loring C/O APPLE TREE PARTNERS 821 BROADWAY, 5TH FLOOR NEW YORK NY 10003 1 0 0 0 Common Stock 2012-07-12 4 S 0 175 90.00 D 80690 D Common Stock 2012-07-13 4 S 0 8279 90.00 D 72411 D Common Stock 2012-07-16 4 S 0 17460 90.21 D 54951 D Common Stock 2012-07-12 4 S 0 19 90.00 D 8865 I see note Common Stock 2012-07-13 4 S 0 920 90.00 D 7945 I see note Common Stock 2012-07-16 4 S 0 1941 90.21 D 6004 I see note Common Stock 1073961 I see note These shares were sold pursuant to a pre-arranged trading plan in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934. The price represents the weighted average sale price for multiple transactions reported on this line. The prices of the transactions ranged from $90.00 to $90.77. The reporting person has provided the issuer and will provide any security holder of the issuer or the SEC Staff, upon request, information regarding the number of shares sold at each price within the range. Represents shares held by Dr. Harrison's spouse, Ms. Ariane Harrison. Represents shares held by Apple Tree Partners I, L.P. Dr. Harrison is the Managing Member of the General Partner of Apple Tree Partners I, L.P. /s/ Lauren Farrell as Attorney-in-Fact 2012-07-16