** Shares of alternative asset specialist Beneficient BENF.O plunge 21% before the bell
** Company's much-delayed Q4 report shows its adjusted operating loss widened to $58.4 mln vs $42.9 mln a year earlier
** BENF's expenses jumped fivefold in the quarter due to a $68.1 mln goodwill impairment charge
** The stock has seesawed since last week, when BENF disclosed the Securities and Exchange Commission had ended a longstanding investigation into the company
** Shares had more than doubled on Friday, partly driven by bullish retail sentiment
** As of last close, shares down 90% YTD
(Reporting by Niket Nishant in Bengaluru)