Golub Capital Private Income Fund I (0002082559) (Filer)

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): October 23, 2026

GOLUB CAPITAL PRIVATE INCOME FUND I

(Exact name of Registrant as Specified in Its Charter)

__ 200 Park Avenue, 25th Floor, New York, NY 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 (see General Instruction A.2. below):

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

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. ☐

As of October 1, 2026, Golub Capital Private Income Fund I (the “Fund”) sold unregistered common shares of beneficial interest, par value $0.01 (the “Common Shares”), based on the Fund’s net asset value (“NAV”) per Common Share as of September 30, 2026, pursuant to subscription agreements entered into by the Fund and its investors. The offer and sale of the Common Shares were exempt from the registration requirements of the Securities Act of 1933, as amended, pursuant to Section 4(a)(2), Regulation D, and/or Regulation S thereunder. The following table details the amount of Common Shares sold and consideration therefor:

(1) No underwriting discounts or commissions have been or will be paid in connection with the sale of such Common Shares. Investors are not charged any sales load or commission in connection with the purchase of Common Shares.

October 2026 Distribution

As previously disclosed, on July 31, 2026, the Fund declared a regular distribution for its Common Shares in the amount per share set forth below:

The October regular distribution for Common Shares is payable to shareholders of record as of the open of business on October 31, 2026 and will be paid on or around November 25, 2026.

This distribution will be paid in cash or reinvested in Common Shares of the Fund for shareholders participating in the Fund’s distribution reinvestment plan.

Portfolio and Business Commentary

As of September 30, 2026, the Fund had investments in 181 portfolio companies with total fair value of approximately $429 million. As of September 30, 2026, the Fund’s investments as a percentage of the portfolio at fair value were comprised of the following:

* Represents an amount less than 1%.

As of September 30, 2026, approximately 100% of the debt investments in the Fund’s portfolio, based on fair value, were floating rates and three debt investments representing less than 1% had a fixed interest rate. As of September 30, 2026, the ten largest industries in which the Fund was invested, represented as a percentage of fair value, were as follows:

As of September 30, 2026, the Fund’s aggregate NAV was approximately $215 million, the fair value of its portfolio investments was approximately $429 million, and it had approximately $234 million of debt outstanding. As of September 30, 2026, the Fund’s debt-to-equity leverage ratio was 1.10x and GAAP debt-to-equity ratio, net, which reduces total debt by cash and cash equivalents and foreign currencies was 1.06x.

Net Asset Value

The NAV per Common Share of the Fund as of September 30, 2026, as determined in accordance with the Fund’s valuation policy and procedures, is set forth below:

Pursuant to the requirements of the Securities Exchange Act of 1934, Golub Capital Private Income Fund I has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.