# EDGAR Filing Document

**Accession Number:** 0001925531
**File Stem:** 0001925531-26-000005
**Filing Date:** 2026-4
**Character Count:** 7226
**Document Hash:** 887a30ec10d47c2896c41cb7bbf9bdf2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001925531-26-000005.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0001925531-26-000005

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260422

**ITEM INFORMATION**: Regulation FD Disclosure

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** New Mountain Guardian IV BDC, L.L.C.
- **CENTRAL INDEX KEY:** 0001925531

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 814-01528
- **FILM NUMBER:** 26882064

**BUSINESS ADDRESS:**
- **STREET 1:** 1633 BROADWAY
- **STREET 2:** 48TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212-720-0300

**MAIL ADDRESS:**
- **STREET 1:** 1633 BROADWAY
- **STREET 2:** 48TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New Mountain Guardian IV BDC L.L.C.
- **DATE OF NAME CHANGE:** 20220426

?xml version='1.0' encoding='ASCII'? nmg4-20260422

**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): **April 22, 2026**

**New Mountain Guardian IV BDC, L.L.C.**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **814-01528** | **88-1377220** |
| (State or other jurisdiction of<br>incorporation or organization) | (Commission<br>File Number) | (IRS Employer<br>Identification Number) |

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**1633 Broadway, 48th Floor, New York, NY 10019**

(Address of principal executive offices)(zip code)

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 (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| None | N/A | N/A |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 7.01 - Regulation FD Disclosure.**

In connection with its disclosure obligations under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules promulgated thereunder, New Mountain Guardian IV BDC, L.L.C. (the "Company") discloses its consolidated schedule of investments on a quarterly basis. In connection with such disclosure, the Company classifies its portfolio investments into 11 different industry types for quarterly reporting on Form 10-Q and annual reporting on Form 10-K.

As part of our internal monitoring, each portfolio company is also assigned a sub-classification within the disclosed industry type to better reflect the business mix of the underlying portfolio companies. These sub-classifications as of December 31, 2025 were:

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| | |
|:---|:---|
|<br>**Industry Type** | **December 31, 2025**<br>**Percent of Total Investments at Fair Value** |
| Business Services |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Insurance & Benefits Services | 9.5% |
| &nbsp;&nbsp;&nbsp;&nbsp;Data & Information Services | 5.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;Utility & Data Center Services | 4.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Real Estate Services | 4.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;Digital Transformation | 3.5% |
| &nbsp;&nbsp;&nbsp;&nbsp;Compliance Services | 3.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;Misc Services | 2.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Engineering & Consulting Services | 1.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Field Services | 1.2% |
| Business Services Subtotal | 36.3% |
| Software |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Enterprise Resource Planning | 9.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;IT Infrastructure & Security | 5.0% |
| &nbsp;&nbsp;&nbsp;&nbsp;Finance & Accounting | 4.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Human Capital Management | 4.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Commerce & Supply Chain | 3.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Governance, Risk & Compliance | 3.0% |
| Software Subtotal | 28.9% |
| Financial Services & Technology |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial Services | 8.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial Technology | 3.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Integrated Payments | 2.9% |
| Financial Services & Technology Subtotal | 14.3% |
| Healthcare |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Healthcare IT & Tech-Enabled Services | 4.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;Healthcare Products | 3.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;Pharma Services | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Healthcare Services | 1.2% |
| Healthcare Subtotal | 10.6% |
| Consumer Services | 5.0% |
| Education | 2.1% |
| Business Products | 1.2% |
| Food & Beverage | 0.7% |
| Packaging | 0.5% |
| Distribution & Logistics | 0.3% |

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| | |
|:---|:---|
| Investment Fund | 0.1% |
| Total | 100.0% |

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The information set forth under this Item 7.01 is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of such section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

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| | |
|:---|:---|
| **Item 9.01.** | **Financial Statements and Exhibits.** |

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d) Exhibits.

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| | |
|:---|:---|
| Exhibit<br>Number | Description |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

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**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.

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| | | | |
|:---|:---|:---|:---|
| | New Mountain Guardian IV BDC, L.L.C. | New Mountain Guardian IV BDC, L.L.C. | New Mountain Guardian IV BDC, L.L.C. |
| Date: April 22, 2026 | By: | /s/ Eric Kane | /s/ Eric Kane |
|  |  | Name: | Eric Kane |
|  |  | Title: | Corporate Secretary |

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