UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Registrant's telephone number, including area code) | Commission file | Exact name of registrant as | IRS Employer | State or other jurisdiction of | | --- | --- | --- | --- | | number | specified in its charter | Identification No. | incorporation or organization | | 1-03560 | P. H. Glatfelter Company | 23-0628360 | Pennsylvania | N/A (Former name or former address, if changed since last report) Indicate by check mark whethe ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2018 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to 96 South George Street, Suite 520 York, Pennsylvania 17401 (Address of principal executive offices) (717) 225-4711 (Registrant's telephone number, including area code) Com ...