Company: BXSL
Filing Date: 2025-01-21
Form Type: 424B2
Source: 0001193125-25-008530
Chunk: 58

Company: Blackstone Secured Lending Fund
Filing Date: 2025-01-21
Form: 424B2
Chunk 58
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 conditions of Rule 10b5-1and Rule 10b-18under the Exchange Act, and will otherwise be subject to applicable law, including Regulation M, which may prohibit purchases under certain circumstances. The Company 10b5-1Plan commenced on November 26, 2021 and will terminate upon the earliest to occur of (i) 12-monthsfrom its commencement (tolled for periods during which the Company 10b5-1Plan is suspended), (ii) the end of the trading day on which the aggregate purchase price for all shares purchased under the Company 10b5-1Plan equals approximately $262 million (representing the net proceeds from the IPO) and (iii) the occurrence of certain other events described in the Company 10b5-1Plan. See “ The Company” in this prospectus. Corporate Information Our principal executive offices are located at 345 Park Avenue, 31st floor, New York, NY 10154 and our telephone number is (212) 503-2100.Our corporate website is located at www.bxsl.com. Information on our website and the SEC’s website is not incorporated into or a part of this prospectus. Risk Factors An investment in our common shares involves a high degree of risk and may be considered speculative. You should carefully consider the information found in “Risk Factors” before deciding to invest in our common shares. Risks involved in an investment in us include: Risks Related to Our Business and Structure

| • |     | We are a relatively new company and have limited operating history and our ability to achieve our investment objectives depends on the ability of the Adviser to manage and support our investment process largely through relationships with private equity sponsors, investment banks and commercial banks. |

| • |     | Our Board of Trustees (“Board”) may change our operating policies and strategies or amend our Declaration of Trust without prior notice or shareholder approval, the effects of which may be adverse to our results of operations and financial condition. |

| • |     | Price declines in the medium- and large-sized U.S. corporate debt market may adversely affect the fair value of our portfolio and our market price. |

| • |     | We may face increasing competition for investment opportunities, have difficulty sourcing investment opportunities and experience fluctuations in our quarterly results. |

| • |     | As required by the 1940 Act, a significant portion of our investment portfolio is and will be recorded at fair value as determined in good faith by our Board and, as