<SEC-DOCUMENT>0001127602-15-006312.txt : 20150218
<SEC-HEADER>0001127602-15-006312.hdr.sgml : 20150216
<ACCEPTANCE-DATETIME>20150217151403
ACCESSION NUMBER:		0001127602-15-006312
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150213
FILED AS OF DATE:		20150217
DATE AS OF CHANGE:		20150217

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLATFELTER P H CO
		CENTRAL INDEX KEY:			0000041719
		STANDARD INDUSTRIAL CLASSIFICATION:	PAPER MILLS [2621]
		IRS NUMBER:				230628360
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		96 S GEORGE ST
		STREET 2:		STE 500
		CITY:			YORK
		STATE:			PA
		ZIP:			17401
		BUSINESS PHONE:		7172252709

	MAIL ADDRESS:	
		STREET 1:		96 S GEORGE ST
		STREET 2:		STE 500
		CITY:			YORK
		STATE:			PA
		ZIP:			17401

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Astley Christopher W.
		CENTRAL INDEX KEY:			0001518612

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03560
		FILM NUMBER:		15621553

	MAIL ADDRESS:	
		STREET 1:		96 S. GEORGE STREET
		STREET 2:		SUITE 520
		CITY:			YORK
		STATE:			PA
		ZIP:			17401
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-02-13</periodOfReport>

    <issuer>
        <issuerCik>0000041719</issuerCik>
        <issuerName>GLATFELTER P H CO</issuerName>
        <issuerTradingSymbol>GLT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001518612</rptOwnerCik>
            <rptOwnerName>Astley Christopher W.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>96 S. GEORGE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 520</rptOwnerStreet2>
            <rptOwnerCity>YORK</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>17403</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Senior VP, Corporate Strategy</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $.01</value>
            </securityTitle>
            <transactionDate>
                <value>2015-02-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4780</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>24.89</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7921</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, Par Value $.01</value>
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                <transactionFormType>4</transactionFormType>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
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                </directOrIndirectOwnership>
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        <nonDerivativeHolding>
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                <value>Common Stock, Par Value $.01</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>728</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance Stock Award</value>
            </securityTitle>
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            <expirationDate>
                <value>2015-03-15</value>
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                <underlyingSecurityTitle>
                    <value>Common Stock, Par Value $.01</value>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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            <expirationDate>
                <value>2015-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, Par Value $.01</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3230</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>4780</value>
                </sharesOwnedFollowingTransaction>
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                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
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                <value>Performance Stock Award</value>
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                <value>2015-02-13</value>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4780</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2015-01-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, Par Value $.01</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4780</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Indicates vesting of Performance Share Awards.  Based on achievement of performance targets, payout percentage was at 59.7% of the original target, adjusted to include accrued dividend equivalents.</footnote>
        <footnote id="F2">These shares are being withheld to satisfy tax obligations.</footnote>
        <footnote id="F3">Not applicable to this transaction</footnote>
        <footnote id="F4">Dividends accrue on the target amount of PSA awards, and the purpose of this filing is to update the award amount to reflect the accrued dividends, payment of which is subject to attainment of the performance goals and payment of the underlying award.</footnote>
        <footnote id="F5">Payout percentage of PSA was at 59.7%.  These shares represent the portion of the award that was unearned and cancelled.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Linda M. Levans by POA</signatureName>
        <signatureDate>2015-02-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
