BRIEF-Xoma Corp Files For Mixed Shelf Of Up To $300 Million By: Reuters: Company News March 07, 2018 at 17:15 PM EST * XOMA CORP FILES FOR MIXED SHELF OF UP TO $300 MILLION – SEC FILING Source text (http://bit.ly/2D8ZcQW) Further company coverage: Read More >> Related Stocks: Xoma Royalty Corporation