UNITED STATES
SECURITIES AND
EXCHANGE COMMISSIONWashington, D.C. 20549 FORM 8-K CURRENT REPORT
Pursuant to
Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest
event reported): June 23, 2011 HEARTWARE INTERNATIONAL,
INC.(Exact name of registrant as
specified in its charter) Delaware
  
  001-34256
  
  26-3636023(State or other Jurisdiction of Incorporation)
  
  (Commission File Number)
  
  (IRS Employer Identification No.) 205 Newbury Street, Suite
101
Framingham, MA
  
  01701(Address of Principal Executive Offices)
  
  (Zip Code) Registrant’s telephone number,
including area code: 508.739.0950 (Former name or former address if changed since last report.) Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions: o Written
communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)o Soliciting material pursuant
to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)o Pre-commencement communications pursuant to Rule
14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))o Pre-commencement communications pursuant to Rule
13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
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Item 8.01 Other Events On June 23, 2011, Douglas
Godshall, Chief Executive Officer and Director of HeartWare International,
Inc., (NASDAQ:HTWR, ASX:HIN) sold 10,000 shares pursuant to a pre-arranged
trading plan in accordance with Rule 10b5-1 under the Securities Exchange
Act of 1934, as amended (the “Act”). Under the trading plan, shares
of common stock will be sold on his behalf by an independent broker in monthly
installments and upon the achievement of pre-specified price targets. The plan
may continue until it expires in December 2020. The final sale will occur
no sooner than June 2014 and about two-thirds of the unsold shares in the
plan will sell after January 1, 2012 if all price targets are met.
Mr. Godshall entered into the trading plan as part of a personal long-term
diversification and estate planning program. The shares subject to the trading
plan include options granted in 2006 and expiring in 2016 and restricted stock
units awarded to Mr. Godshall under HeartWare’s employee equity
incentive programs, and represent less than half of the expected value of the
total shares granted to him. The trading plan is intended to comply
with Rule 10b5-1 under the Act and HeartWare’s Insider Trading
Policy. Under Rule 10b5-1, officers, directors and employees who are not
at the time in possession of material non-pubic information may adopt a
pre-arranged trading plan for the sale of securities under specified conditions
and at specified times. Any transactions under the trading plan will be
disclosed publicly through Form 4 and Form 144 filings with the
Securities and Exchange Commission. HeartWare does not intend to and undertakes
no obligation to report on Form 8-K any transactions under
Mr. Godshall’s trading plan or any trading plans that may be adopted
by any other officer, director or employee of HeartWare or to report on Form
8-K any modifications or termination of any publicly announced trading plans,
except to the extent required by law. SIGNATURES Pursuant to the requirements of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly authorized. HeartWare
International, Inc. Date: June 27, 2011 By:/s/ Lawrence J.
Knopf

Name:  Lawrence J. Knopf 
Title:   Senior Vice
President and General Counsel  2