A total of 1,57,058 shares (representing 0.58 per cent stake) of Eicher Motors were bought by Vanguard Group through a bulk deal transaction on the National Stock Exchange.
Shares of the company were purchased on an average price of Rs 19,676.89, valuing the transaction at Rs 309.04 crore.
However, the identity of seller of the shares could not be ascertained immediately.
Earlier in March, Citigroup Global Markets Mauritius had acquired 1.15 per cent stake worth more than Rs 619 crore in Eicher Motors. Swedish company AB Volvo had sold 4.7 per cent stake in Eicher Motors for Rs 1,920 crore in March this year.
Eicher Motors manufactures and markets the iconic Royal Enfield motorcycles.
The company's stock closed at Rs 19,471.15, marginally lower than the previous close on the BSE.