 Zurcher Kantonalbank Zurich Cantonalbank trimmed its position in shares of Liberty Broadband Corp Series C NASDAQ:LBRDK by 5.5 during the second quarter, according to its most recent disclosure with the Securities Exchange Commission. The firm owned 25,342 shares of the companys stock after selling 1,478 shares during the quarter. Zurcher Kantonalbank Zurich Cantonalbanks holdings ... 