Market Coronavirus effect: As stocks plunge, these promoters have bought extensively from the market Updated : March 18, 2020 12:31 PM IST Tata Sons, JSW Steel, Bajaj Auto, Motilal Oswal and Sun Pharma are among the companies where promoters have been mopping up shares. Promoter purchases during times of panic like these help calm investors by providing a floor for the stock price. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.