BOSTON (Bloomberg) ? Tyco International Ltd. shareholder Relational Investors LLC, co-founded by investor activist Ralph Whitworth, sold its 11.1 million-share stake in the conglomerate, according to a filing with the US Securities and Exchange Commission.

Relational had owned 11.1 million shares of Bermuda-based Tyco as of June 30, according to the filing. Shares of Tyco, which is preparing to split into three separate companies next year, rose 1.7 percent in the quarter ended September 30, the filing said.