Bed Bath & Beyond Inc.’s shares fell 21% Monday after the retailer disclosed substantial dilution from a recent equity deal, potentially preventing it from raising more money from a crucial investor, hedge fund Hudson Bay Capital Management LP, WSJ Pro Bankruptcy reported. The home-goods retailer’s stock closed at 81 cents Monday, after it said Friday that the number of its common shares had nearly tripled to at least 335 million as of March 15 from 117 million as of late January. The number of shares outstanding ballooned because investors including Hudson Bay have been converting their preferred shares into new common shares in recent weeks as the result of the complex equity deal the company struck last month. Those investors put in an initial $225 million and agreed to fund an additional $800 million over 10 months provided that certain conditions are met, including Bed Bath & Beyond maintaining a certain volume-weighted-average price threshold for its stock. The company raised an additional $135 million through the deal as of March 7, bringing the total amount raised to at least $360 million.