"ABB has strong market positions in attractive industry segments, and we see potential for operational improvements under the leadership of the new CEO Bjorn Rosengren," Investor Chief Executive Johan Forssell said in the company's year-end report.

Rosengren, currently CEO at engineering group Sandvik, will join ABB on February 1.

Investor has an 11.8% stake in ABB, holding 255 million shares worth around 57 billion crowns ($6 billion) by the end of 2019. Investor said it bought ABB shares for 4.3 billion crowns during 2019.

(Reporting by Johannes Hellstrom;Editing by Simon Johnson)