BorgWarner's stock price dropped sharply by 5.98% during intraday trading on Friday, following the company's filing for a mixed shelf offering with the SEC.

The automotive parts supplier filed for the shelf offering, which allows it to sell various types of securities in the future without having to register each offering separately. While the size of the offering was not disclosed in the initial filing, such announcements often lead to investor concerns about potential dilution of existing shares.

Market participants typically react negatively to shelf offering announcements as they signal possible future equity issuance that could dilute current shareholders' stakes. The timing of the filing, which became public shortly before the market close, contributed to the significant downward pressure on BorgWarner's stock price during the session.