X0306 4 2021-12-28 1 0001414932 Oaktree Specialty Lending Corp OCSL 0001200461 TANNENBAUM LEONARD M 525 OKEECHOBEE BLVD. SUITE 1770 WEST PALM BEACH FL 33401 0 0 0 1 Former 10% Owner (See Remarks) Common Stock 2021-12-28 4 S 0 200000 7.547 D 15591543 D Common Stock 1332773 I Trust Common Stock 2021-12-29 4 S 0 200000 7.522 D 15391543 D Common Stock 1332773 I Trust Common Stock 2021-12-30 4 S 0 84954 7.504 D 15306589 D Common Stock 1332773 I Trust This transaction was executed in multiple trades at prices ranging from $7.500 to $7.590; 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 to 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 Gabriel Katz 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 $7.500 to $7.570; 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 to the SEC staff, the issuer, or a security holder of the issuer This transaction was executed in multiple trades at prices ranging from $7.500 to $7.520; 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 to the SEC staff, the issuer, or a security holder of the issuer. Following the sale transaction on December 30, 2021, the Reporting Person ceased to own more than 10% of the issuer's common stock. Gabriel Katz as Attorney-in-Fact 2021-12-30