Company: BXSL
Filing Date: 2025-07-11
Form Type: 424B2
Source: 0001213900-25-063323
Chunk: 132

Company: Blackstone Secured Lending Fund
Filing Date: 2025-07-11
Form: 424B2
Chunk 132
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 shares referenced in our Registration Statement on Form 8 -A(No. 001 -40966), as filed with the SEC on October26, 2021, including any amendment or report filed for the purpose of updating such description prior to the termination of the offering of the common shares registered hereby. See “ Available Information” for information on how to obtain a copy of these filings. 162

$600,000,000 BLACKSTONE SECURED LENDING FUND Common Shares _________________________ PROSPECTUS SUPPLEMENT _________________________

| Truist     
 Securities |     | RBC Capital 
 Markets     |     | BTIG |     | Compass 
 Point   |     | Raymond 
 James   |     | Regions        
 Securities LLC |     | Drexel   
 Hamilton |     | SMBC  
 Nikko |

July 11, 2025