Golub Capital Private Income Fund I

Item 3.02. Unregistered Sales of Equity Securities. As of August 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 July 31, 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: Date of Unregistered Sale Amount of Common Shares NAV per Common Share Consideration(1) ────────────────────────────────────────────────────────────────────────────────────────────────────────── As of August 1, 2026 53,881 $24.22 $1,305,000 (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.

Item 7.01. Regulation FD Disclosures. August 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: Regular Distribution August 2026 Common Shares Distribution $0.1667 The August regular distribution for Common Shares is payable to shareholders of record as of the open of business on August 31, 2026 and will be paid on or around September 29, 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.

Item 8.01. Other Events. Portfolio and Business Commentary As of July 31, 2026, the Fund had investments in 165 portfolio companies with total fair value of approximately $439 million. As of July 31, 2026, the Fund’s investments as a percentage of the portfolio at fair value were comprised of the following: Investment Type As of July 31, 2026 ──────────────────────────────────────────────── First Lien Senior Secured 99% Junior Debt 0%* Equity 1% * Represents an amount less than 1%. As of July 31, 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 July 31, 2026, the ten largest industries in which the Fund was invested, represented as a percentage of fair value, were as follows: Industry As of July 31, 2026 ────────────────────────────────────────────────────── Software 25% Insurance 9% Commercial Services & Supplies 7% Healthcare Providers & Services 6% Hotels, Restaurants & Leisure 5% Healthcare Equipment & Supplies 5% Automobiles 4% Healthcare Technology 4% Professional Services 4% Containers & Packaging 4% As of July 31, 2026, the Fund’s aggregate NAV was approximately $209 million, the fair value of its portfolio investments was approximately $439 million, and it had approximately $247 million of debt outstanding. As of July 31, 2026, the Fund’s debt-to-equity leverage ratio was 1.19x and GAAP debt-to-equity ratio, net, which reduces total debt by cash and cash equivalents and foreign currencies was 1.15x. Net Asset Value The NAV per Common Share of the Fund as of July 31, 2026, as determined in accordance with the Fund’s valuation policy and procedures, is set forth below: NAV per Common Share as of July 31, 2026 ─────────────────────────────────────────── Common Shares $24.22 SIGNATURES 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. GOLUB CAPITAL PRIVATE INCOME FUND I Date: August 24, 2026 By: /s/ Paul Solini Name: Paul Solini Title: Chief Accounting Officer