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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C. 20549</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM 8-K</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report (Date of earliest event reported): <b><font style="font-weight:bold;">August 14</font>, 2013</b></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">PennyMac Mortgage Investment Trust</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant as specified in its charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Maryland</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">001-34416</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">27-0186273</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or   Other Jurisdiction of</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission   </font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S.   Employer</font></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Incorporation   or Organization)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">File   Number)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Identification   No.)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">6101 Condor Drive, Moorpark, California</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">93021</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address   of principal executive offices)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip   Code)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(818) 224-7442</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s telephone number, including area code)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Not Applicable</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or former address, if changed since last report)</font></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
<p style="margin:0in 0in .0001pt .5in;text-align:justify;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt .25in;text-align:justify;text-indent:-.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-align:justify;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 1.01 Entry into a Material Definitive Agreement.</font></b></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On August 14, 2013</font><font size="2" style="font-size:10.0pt;">, PennyMac Mortgage Investment Trust (the &#147;Company&#148; or, alternatively, &#147;we&#148; or &#147;us&#148;), through our wholly-owned subsidiary, PennyMac Corp. (&#147;PMC&#148;), amended the terms of the Mortgage Banking and Warehouse Services Agreement (&#147;MBWS Agreement&#148;) dated as of February 1, 2013 between PMC and PennyMac Loan Services, LLC (&#147;PLS&#148;), a wholly-owned subsidiary of PennyMac Financial Services, Inc.&#160; Under the terms of the MBWS Agreement, PLS provides PMT with certain mortgage banking services, including fulfillment and disposition-related services, with respect to loans acquired by us from correspondent lenders, and certain warehouse lending services, including fulfillment and administrative services, with respect to loans financed by us for our warehouse lending clients. In consideration for the mortgage banking services provided by PLS with respect to our acquisition of mortgage loans, PLS is entitled to a fulfillment fee based on the type of mortgage loan that we acquire and equal to a percentage of the unpaid principal balance of such mortgage loan.</font></p>
<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The amendment provides that PLS, in its sole discretion, may reduce the amount of its fulfillment fees with respect to PMT&#146;s acquisition of any loan and credit the amount of the reduction against the amount of any volume discount that it would otherwise return to us. The amount of any fee reduction would only be credited against the volume discount otherwise due and relating to loans purchased in the month during which the fulfillment fees were earned and reduced.</font></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The foregoing description of the amendment to the MBWS Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the amendment, which has been filed herewith as Exhibit 1.1 and incorporated herein by reference, and the full text of the MBWS Agreement, which was filed as Exhibit 1.3 to the Company&#146;s Current Report on Form 8-K filed on February 7, 2013, and any amendments to the MBWS Agreement filed thereafter.</font></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01 Financial Statements and Exhibits.</font></b></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d) Exhibits.</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amendment   No. 2 to Mortgage Banking and Warehouse Services Agreement, between PennyMac   Loan Services, LLC and PennyMac Corp., dated as of February 1, 2013.</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2<a name="PB_2_001419_7056"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>
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<p style="margin:0in 0in .0001pt;text-align:justify;text-indent:22.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PENNYMAC MORTGAGE INVESTMENT   TRUST</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated: August   19, 2013</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Anne D.   McCallion</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Anne D.   McCallion</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Financial   Officer</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_001520_5335"></a></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT INDEX</font></b></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit No.</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amendment   No. 2 to Mortgage Banking and Warehouse Services Agreement, between PennyMac   Loan Services, LLC and PennyMac Corp., dated as of February 1, 2013.</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4<a name="PB_4_001540_5796"></a></font></p>
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{"company-data": {"conformed-name": "PennyMac Mortgage Investment Trust", "cik": "0001464423", "assigned-sic": "6798", "irs-number": "270186273", "state-of-incorporation": "MD", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-34416", "film-number": "131049045"}, "business-address": {"street1": "6101 CONDOR DRIVE", "street2": "THIRD FLOOR", "city": "MOORPARK", "state": "CA", "zip": "93021", "phone": "(818) 224-7442"}, "mail-address": {"street1": "6101 CONDOR DRIVE", "street2": "THIRD FLOOR", "city": "MOORPARK", "state": "CA", "zip": "93021"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
August 14
, 2013
PennyMac Mortgage Investment Trust
(Exact name of registrant as specified in its charter)
Maryland
001-34416
27-0186273
(State or   Other Jurisdiction of
(Commission
(I.R.S.   Employer
Incorporation   or Organization)
File   Number)
Identification   No.)
6101 Condor Drive, Moorpark, California
93021
(Address   of principal executive offices)
(Zip   Code)
(818) 224-7442
(Registrant's telephone number, including area code)
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 1.01 Entry into a Material Definitive Agreement.
On August 14, 2013
, PennyMac Mortgage Investment Trust (the "Company" or, alternatively, "we" or "us"), through our wholly-owned subsidiary, PennyMac Corp. ("PMC"), amended the terms of the Mortgage Banking and Warehouse Services Agreement ("MBWS Agreement") dated as of February 1, 2013 between PMC and PennyMac Loan Services, LLC ("PLS"), a wholly-owned subsidiary of PennyMac Financial Services, Inc.  Under the terms of the MBWS Agreement, PLS provides PMT with certain mortgage banking services, including fulfillment and disposition-related services, with respect to loans acquired by us from correspondent lenders, and certain warehouse lending services, including fulfillment and administrative services, with respect to loans financed by us for our warehouse lending clients. In consideration for the mortgage banking services provided by PLS with respect to our acquisition of mortgage loans, PLS is entitled to a fulfillment fee based on the type of mortgage loan that we acquire and equal to a percentage of the unpaid principal balance of such mortgage loan.
The amendment provides that PLS, in its sole discretion, may reduce the amount of its fulfillment fees with respect to PMT's acquisition of any loan and credit the amount of the reduction against the amount of any volume discount that it would otherwise return to us. The amount of any fee reduction would only be credited against the volume discount otherwise due and relating to loans purchased in the month during which the fulfillment fees were earned and reduced.
The foregoing description of the amendment to the MBWS Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the amendment, which has been filed herewith as Exhibit 1.1 and incorporated herein by reference, and the full text of the MBWS Agreement, which was filed as Exhibit 1.3 to the Company's Current Report on Form 8-K filed on February 7, 2013, and any amendments to the MBWS Agreement filed thereafter.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No.
Description
1.1
Amendment   No. 2 to Mortgage Banking and Warehouse Services Agreement, between PennyMac   Loan Services, LLC and PennyMac Corp., dated as of February 1, 2013.
2
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
PENNYMAC MORTGAGE INVESTMENT   TRUST
Dated: August   19, 2013
/s/ Anne D.   McCallion
Anne D.   McCallion
Chief Financial   Officer
3
EXHIBIT INDEX
Exhibit No.
Description
1.1
Amendment   No. 2 to Mortgage Banking and Warehouse Services Agreement, between PennyMac   Loan Services, LLC and PennyMac Corp., dated as of February 1, 2013.
4