 Assenagon Asset Management S.A. bought a new position in shares of CorVel Co. NASDAQ:CRVL in the 1st quarter, according to its most recent disclosure with the Securities and Exchange Commission. The firm bought 23,603 shares of the business services providers stock, valued at approximately 1,287,000. Assenagon Asset Management S.A. owned about 0.13 of CorVel as ... 