X0306 4 2021-11-08 0 0001414932 Oaktree Specialty Lending Corp OCSL 0001200461 TANNENBAUM LEONARD M 525 OKEECHOBEE BLVD. SUITE 1770 WEST PALM BEACH FL 33401 0 0 1 0 Common Stock 2021-11-08 4 S 0 100000 7.5089 D 16680963 D Common Stock 1332773 I Trust Common Stock 2021-11-09 4 S 0 29732 7.5007 D 16651231 D Common Stock 1332773 I Trust Common Stock 2021-11-10 4 S 0 48173 7.5003 D 16603058 D Common Stock 1332773 I Trust This transaction was executed in multiple trades at prices ranging from $7.50 to $7.53; the price reported reflects the weighted average price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request of the SEC staff, the issuer, or a security holder of the issuer. These shares of Common Stock are held by the Leonard M. Tannenbaum 2012 Trust for benefit of certain members of the reporting person's family for which James Castro-Blanco is a Co-Trustee. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest. This transaction was executed in multiple trades at prices ranging from $7.50 to $7.52; the price reported reflects the weighted average price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request of the SEC staff, the issuer, or a security holder of the issuer. This transaction was executed in multiple trades at prices ranging from $7.50 to $7.51; the price reported reflects the weighted average price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request of the SEC staff, the issuer, or a security holder of the issuer. Thomas Geoffroy as Attorney-in-Fact 2021-11-10