Filings: •Clearwire (CLWR) filed for a ~4.82 mln share common stock shelf offering by a selling stockholder. •Chesapeake Lodging Trust (CHSP) filed for a $500 mln mixed securities shelf offering. •Drew Industries (DW) filed for a 900K share common stock offering by a selling shareholder. •DaVita (DVA) filed for a shelf offering consisting of debt securities and guarantees. •Celsion (CLSN) filed for $75 mln mixed securities shelf offering.