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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0306 </schemaVersion> |
| <documentType> 4 </documentType> |
| <periodOfReport> 2021-05-10 </periodOfReport> |
| <issuer> |
| | <issuerCik> 0001745916 </issuerCik> |
| | <issuerName> PennyMac Financial Services, Inc. </issuerName> |
| | <issuerTradingSymbol> PFSI </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001196045 </rptOwnerCik> |
| | | <rptOwnerName> MAZZELLA JOSEPH F </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> C/O PENNYMAC FINANCIAL SERVICES, INC. </rptOwnerStreet1> |
| | | <rptOwnerStreet2> 3043 TOWNSGATE ROAD </rptOwnerStreet2> |
| | | <rptOwnerCity> WESTLAKE VILLAGE </rptOwnerCity> |
| | | <rptOwnerState> CA </rptOwnerState> |
| | | <rptOwnerZipCode> 91361 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isDirector> 1 </isDirector> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeTransaction> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <transactionDate> |
| <value> 2021-05-10 </value> |
| </transactionDate> |
| | | <transactionCoding> |
| <transactionFormType> 4 </transactionFormType> |
| <transactionCode> A </transactionCode> |
| <equitySwapInvolved> 0 </equitySwapInvolved> |
| </transactionCoding> |
| | | <transactionTimeliness></transactionTimeliness> |
| | | <transactionAmounts> |
| <transactionShares> |
| <value> 419 </value> |
| <footnoteId id="F1"/> |
| </transactionShares> |
| <transactionPricePerShare> |
| <value> 59.19 </value> |
| </transactionPricePerShare> |
| <transactionAcquiredDisposedCode> |
| <value> A </value> |
| </transactionAcquiredDisposedCode> |
| </transactionAmounts> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 366062 </value> |
| <footnoteId id="F2"/> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeTransaction> |
| | <nonDerivativeHolding> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 152031 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> I </value> |
| </directOrIndirectOwnership> |
| <natureOfOwnership> |
| <value> Mazzella Family Irrevocable Trust </value> |
| </natureOfOwnership> |
| </ownershipNature> |
| | | </nonDerivativeHolding> |
| | </nonDerivativeTable> |
| <footnotes> |
| | <footnote id="F1"> The Reporting Person received these shares in lieu of cash compensation payable for services rendered as a non-management director of the Issuer during the first quarter of 2021. The transaction is exempt under Rule 16b-3 of the Securities Exchange Act of 1934. </footnote> |
| | <footnote id="F2"> The reported amount consists of 3,449 restricted stock units and 362,613 shares of Common Stock. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. </footnote> |
| | </footnotes> |
| <ownerSignature> |
| | <signatureName> /s/ Derek W. Stark, attorney-in-fact for Mr. Mazzella </signatureName> |
| | <signatureDate> 2021-05-11 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |