 Chartwell Investment Partners LLC lifted its position in P H Glatfelter Co NYSE:GLT by 12.1 during the first quarter, HoldingsChannel.com reports. The institutional investor owned 891,411 shares of the basic materials companys stock after purchasing an additional 96,195 shares during the period. Chartwell Investment Partners LLCs holdings in P H Glatfelter were worth 10,893,000 as ... 