# EDGAR Filing Document

**Accession Number:** 0001948368
**File Stem:** 0001193125-26-197435
**Filing Date:** 2026-4
**Character Count:** 6673
**Document Hash:** 1374e098bb82dcbbd11c4c5e7a205295
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-197435.hdr.sgml**: 20260430

**ACCESSION NUMBER**: 0001193125-26-197435

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20260424

**ITEM INFORMATION**: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260430

**DATE AS OF CHANGE**: 20260430

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Phillip Street BDC LLC
- **CENTRAL INDEX KEY:** 0001948368

**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:** 814-01579
- **FILM NUMBER:** 26925943

**BUSINESS ADDRESS:**
- **STREET 1:** 200 WEST STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10282-2198
- **BUSINESS PHONE:** 212-902-1000

**MAIL ADDRESS:**
- **STREET 1:** 200 WEST STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10282-2198

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Phillip Street Middle Market Lending Fund LLC
- **DATE OF NAME CHANGE:** 20220927

?xml version='1.0' encoding='ASCII'? 8-K

### 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 24, 2026

## Phillip Street BDC LLC

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **814-01579** | **92-0758632** |
| **(State or Other Jurisdiction**<br> **of Incorporation)** | **(Commission**<br> **File Number)** | **(I.R.S. Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **200 West Street, New York, New York** | **10282** |
| **(Address of Principal Executive Offices)** | **(Zip Code)** |

---

#### Registrant's telephone number, including area code: (312) 655-4419

#### Phillip Street Middle Market Lending Fund LLC

#### (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:

☐ 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:

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>Symbol(s)** | **Name of each exchange**<br> **on which registered** |

---

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

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. ☒

------

#### Item 5.03 - Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
Effective April 24, 2026, Phillip Street BDC LLC (the "<u>Company</u>") changed its name from "Phillip Street Middle Market Lending Fund LLC" to "Phillip Street BDC LLC" by filing a certificate of amendment to its Certificate of Formation (the "<u>Certificate of Formation Amendment</u>") with the Secretary of State of the State of Delaware.

The foregoing description of the Certificate of Formation Amendment is only a summary and is qualified in its entirety by reference to the full text of the Certificate of Formation Amendment, which is filed as Exhibit 3.1 to this Current Report on Form 8-K.

#### Item 9.01 - Financial Statements and Exhibits.
(d) Exhibits:

---

| | |
|:---|:---|
| **Exhibit**<br> **Number** | **Description** |
| 3.1 | [Amendment to Certificate of Formation.](d148011dex31.htm) |
|  104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

------

#### SIGNATURES
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.

---

| | | |
|:---|:---|:---|
|  | **Phillip Street BDC LLC**<br> (Registrant) | **Phillip Street BDC LLC**<br> (Registrant) |
| Date: April 30, 2026 | By: | /s/ Vivek Bantwal |
|  | Name: | Vivek Bantwal |
|  | Title: | Co-Chief Executive Officer |
|  | By: | /s/ David Miller |
|  | Name: | David Miller |
|  | Title: | Co-Chief Executive Officer |

---

## Exhibit 3.1

**Exhibit 3.1** 

**CERTIFICATE OF AMENDMENT TO** 

**CERTIFICATE OF FORMATION OF** 

**PHILLIP STREET MIDDLE MARKET LENDING FUND LLC** 

This Certificate of Amendment to Certificate of Formation is being executed as of April 24, 2026 for the purpose of amending the Certificate of Formation of Phillip Street Middle Market Lending Fund LLC pursuant to Section 18-102 of the Delaware Limited Liability Company Act.

The undersigned, being duly authorized to execute and file this Certificate, does hereby certify as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The name of the limited liability company is Phillip Street Middle Market Lending Fund LLC (the "LLC").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. The original Certificate of Formation of the LLC was filed with the Office of the Secretary of State of the State of Delaware on July 13, 2022.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. The Certificate of Formation of the LLC is hereby amended by striking paragraph 1 and replacing it with the following:

"1. <u>Name</u>. The name of the limited liability company is Phillip Street BDC LLC (the "Company")."

IN WITNESS WHEREOF, the undersigned has duly executed this Certificate of Amendment to Certificate of Formation as of the day and year first above written.

---

| | |
|:---|:---|
| By: | /s/ Stanley Matuszewski |
|  | Name: Stanley Matuszewski |
|  | Title: Chief Financial Officer |

---