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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</font></b></p>
<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;">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&nbsp;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>
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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;">Pursuant to section 13 or 15(d)&nbsp;of the</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;">Securities Exchange Act of 1934</font></b></p>
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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;">Date of Report (Date of Earliest Event Reported):<b> October&nbsp;10, 2013 (October&nbsp;10, 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;">New Mountain Finance Corporation</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;">Delaware</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;">814-00832</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;">27-2978010</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><font size="2" style="font-size:10.0pt;"><br> 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;">(Commission</font><font size="2" style="font-size:10.0pt;"><br> 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;">(IRS Employer</font><font size="2" style="font-size:10.0pt;"><br> Identification Number)</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;">787 7</font></b><b><font size="1" style="font-size:6.5pt;font-weight:bold;position:relative;top:-3.0pt;">th</font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">&#160;Avenue, 48</font></b><b><font size="1" style="font-size:6.5pt;font-weight:bold;position:relative;top:-3.0pt;">th</font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">&#160;Floor, New York, NY 10019</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;">(Address of principal executive offices)</font></p>
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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;">Registrant&#146;s telephone number, including area code <b>(212) 720-0300</b></font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&#160;&#160;&#160;&#160;&#160; Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425) </font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&#160;&#160;&#160;&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b)) </font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="2" style="font-size:10.0pt;">&#160;&#160;&#160;&#160;&#160; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c)) </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;">Item&nbsp;2.02</font></b><font size="2" style="font-size:10.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160; <b>Results of Operations and Financial Condition</b></font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Set forth below is a preliminary estimate of our net asset value per share as of October&nbsp;10, 2013 and a preliminary estimate of our adjusted net investment income per share range for the three months ended September&nbsp;30, 2013. The following estimates are not a comprehensive statement of our financial condition or results for the period from December&nbsp;31, 2012 through September&nbsp;30, 2013. We advise you that our actual results for the three and nine months ended September&nbsp;30, 2013 may differ materially from these estimates, which are given only as of the date of this prospectus supplement, as a result of the completion of our financial closing procedures, final adjustments and other developments, including changes in interest rates or changes in the businesses to whom we have made loans, which may arise between now and the time that our financial results for the three and nine months ended September&nbsp;30, 2013 are finalized. In addition, our board of directors has not yet determined the fair value of our investment portfolio as of September&nbsp;30, 2013, which could have a material impact on our actual net asset value per share as of September&nbsp;30, 2013. This information is therefore inherently uncertain.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">We currently believe that the Operating Company, New Mountain Finance Holdings, L.L.C., will meet the adjusted net investment income per share estimate of between $0.33 and $0.35 for the three months ended September&nbsp;30, 2013, which was previously announced on our quarterly earnings call held on August&nbsp;8, 2013.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">We estimate that our net asset value per share as of October&nbsp;10, 2013 is approximately $14.34.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The preliminary financial estimates provided herein have been prepared by, and are the responsibility of, management. Deloitte&nbsp;&amp; Touche LLP, our independent registered public accounting firm, has not audited, reviewed, compiled, or performed any procedures with respect to the accompanying preliminary financial data. Accordingly, Deloitte&nbsp;&amp; Touche LLP does not express an opinion or any form of assurance with respect thereto.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information disclosed under this Item 2.02 is being furnished and shall not be deemed &#147;filed&#148; for purposes of Section&nbsp;18 of the Securities Exchange Act of 1934 and shall not be deemed incorporated by reference into any filing made under the Securities Act of 1933, except as expressly set forth by specific reference in such filing.</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-indent:24.5pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Current Report on Form&nbsp;8-K to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">NEW   MOUNTAIN FINANCE CORPORATION</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;">Date:&nbsp;October&nbsp;10,   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;">By:</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/   Paula A. Bosco</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;">Name:</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;">Paula   A. Bosco</font></p>    </td>   </tr>
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{"company-data": {"conformed-name": "New Mountain Finance Corp", "cik": "0001496099", "irs-number": "272978010", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "814-00832", "film-number": "131146095"}, "business-address": {"street1": "787 SEVENTH AVENUE, 48TH FLOOR", "city": "NEW YORK", "state": "NY", "zip": "10019", "phone": "(212) 720-0300"}, "mail-address": {"street1": "787 SEVENTH AVENUE, 48TH FLOOR", "city": "NEW YORK", "state": "NY", "zip": "10019"}, "former-company": {"former-conformed-name": "New Mountain Guardian Corp", "date-changed": "20100706"}}
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):
October 10, 2013 (October 10, 2013)
New Mountain Finance Corporation
(Exact name of registrant as specified in its charter)
Delaware
814-00832
27-2978010
(State or other jurisdiction of
incorporation or organization)
(Commission
File Number)
(IRS Employer
Identification Number)
787 7
th
Avenue, 48
th
Floor, New York, NY 10019
(Address of principal executive offices)
Registrant's telephone number, including area code
(212) 720-0300
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 2.02
Results of Operations and Financial Condition
Set forth below is a preliminary estimate of our net asset value per share as of October 10, 2013 and a preliminary estimate of our adjusted net investment income per share range for the three months ended September 30, 2013. The following estimates are not a comprehensive statement of our financial condition or results for the period from December 31, 2012 through September 30, 2013. We advise you that our actual results for the three and nine months ended September 30, 2013 may differ materially from these estimates, which are given only as of the date of this prospectus supplement, as a result of the completion of our financial closing procedures, final adjustments and other developments, including changes in interest rates or changes in the businesses to whom we have made loans, which may arise between now and the time that our financial results for the three and nine months ended September 30, 2013 are finalized. In addition, our board of directors has not yet determined the fair value of our investment portfolio as of September 30, 2013, which could have a material impact on our actual net asset value per share as of September 30, 2013. This information is therefore inherently uncertain.
We currently believe that the Operating Company, New Mountain Finance Holdings, L.L.C., will meet the adjusted net investment income per share estimate of between $0.33 and $0.35 for the three months ended September 30, 2013, which was previously announced on our quarterly earnings call held on August 8, 2013.
We estimate that our net asset value per share as of October 10, 2013 is approximately $14.34.
The preliminary financial estimates provided herein have been prepared by, and are the responsibility of, management. Deloitte & Touche LLP, our independent registered public accounting firm, has not audited, reviewed, compiled, or performed any procedures with respect to the accompanying preliminary financial data. Accordingly, Deloitte & Touche LLP does not express an opinion or any form of assurance with respect thereto.
The information disclosed under this Item 2.02 is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 and shall not be deemed incorporated by reference into any filing made under the Securities Act of 1933, except as expressly set forth by specific reference in such filing.
2
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Current Report on Form 8-K to be signed on its behalf by the undersigned hereunto duly authorized.
NEW   MOUNTAIN FINANCE CORPORATION
Date: October 10,   2013
By:
/s/   Paula A. Bosco
Name:
Paula   A. Bosco
Title:
Secretary
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