BOSTON -- Wellington Management Company LLP has reported a 10.53...

BOSTON -- Wellington Management Company LLP has reported a 10.53 percent stake worth $140.44 million in HeartWare International Inc. (Nasdaq: HTWR), according to an SEC filing.

The Boston-based money manager, founded in 1928, said it owned 1.46 million shares in HeartWare, which is led by Doug Godshall and headquartered in Framingham, Mass.

The stake's value is based on the stock's Jan. 11 closing price of $96.19 per share.

HeartWare develops implantable left ventricular assist devices used to treat advanced heart failure. Led by Managing Director and CEO Douglas Godshall, the company's shares are listed on Nasdaq and the Australian Securities Exchange.

Citybizlist reported last month that HeartWare announced the completion of a public offering of $143.75 million principal amount of convertible senior notes due 2017.

Wellington manages $598 billion in client assets in 50 countries. It is led by CEO Perry Traquina.