DLA Piper has lost two more US rainmakers, including the co-chair of the firm’s US private equity practice Steven Napolitano, following the recent exits of more than 20 partners to McDermott Will & Emery.

Napolitano and fellow private equity partner Brendan Head, the co-managing partner of DLA’s Chicago office, are set to join Kirkland & Ellis as partners in the firm’s much-vaunted private equity practice, according to two sources familiar with the moves.