UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): September 6, 2022

GOLUB CAPITAL BDC 3, INC.

(Exact name of Registrant as Specified in Its Charter)

MARYLAND	814-01244	82-2375481
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

200 Park Avenue, 25th Floor, New York, New York	10166
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 Symbol(s)	Name of each exchange on which registered
None	N/A	N/A

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 x

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. x

Item 1.01. Entry into a Material Definitive Agreement

Golub Capital BDC 3, Inc. (the “Company”), together with GBDC 3 Funding II LLC, a wholly owned subsidiary of the Company (“GBDC 3 Funding II”), as borrowers, provided written notice (the “Commitment Reduction Notice”) to Signature Bank (“SB”) of their intent to reduce the maximum borrowings permitted under the revolving credit agreement (as amended, the “SB Revolver”) with SB, as administrative agent and a lender, to $100 million from $150 million at any one time outstanding, subject to leverage and borrowing base restrictions. The other terms of the SB Revolver were not changed. Such reduction in the maximum permitted borrowings under the SB Revolver pursuant to the Commitment Reduction Notice will be effective as of September 13, 2022.

The Commitment Reduction Notice is filed as Exhibit 10.1 to this current report on Form 8-K.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

10.1 Letter Re: Reduction of Commitment from Golub Capital BDC 3, Inc. and GBDC 3 Funding II LLC to Signature Bank, dated as of September 6, 2022

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Golub Capital BDC 3, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Golub Capital BDC 3, Inc.
Date: September 8, 2022	By:	/s/ Christopher C. Ericson
	Name:	Christopher C. Ericson
	Title:	Chief Financial Officer