** Online casino and sports betting company Rush Street Interactive's RSI.N shares slide 10.2% to $26.20 in extended trading
** RSI kicks off secondary offering of 10 million shares by one or more trusts beneficially owned by executive chairman Neil Bluhm, CEO Richard Schwartz and chief operating officer Mattias Stetz
** Selling stockholders offering shares for personal financial planning and estate planning purposes - RSI
** Wells Fargo Securities and Morgan Stanley acting as joint book-running managers
** Upon offering completion, Neil Bluhm and trusts and other entities beneficially owned by him will continue to own over 40% of the firm's stock - RSI
** Concurrently, RSI intends to repurchase from the underwriters $30 million of shares from the offering under its existing stock repurchase program
** As of last close, RSI stock up 50% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com;))