 UBS Asset Management Americas Inc. lessened its stake in shares of P H Glatfelter Co NYSE:GLT by 5.7 in the 4th quarter, HoldingsChannel.com reports. The fund owned 33,055 shares of the basic materials companys stock after selling 2,013 shares during the period. UBS Asset Management Americas Inc.s holdings in P H Glatfelter were worth 605,000 ... 