General Motors said by way of a regulatory filing that Capital Research Global Investors — one of the world’s largest investment management firms — has acquired over 5% of its shares.

In a filing with the Securities and Exchange Commission, GM said the Los Angeles-based firm now owns more than 92m shares, or 5.8% of the company. Corporations are required to alert the SEC whenever one individual or organisation’s ownership exceeds 5%, a Detroit News report said.

Capital Research Global Investors is part of the Capital Group Companies, a leading mutual fund manager.

GM had no comment to the Motown paper on the news.

The automaker announces its 2011 financial results on Thursday (16 February).