X0306 4 2020-03-10 0 0001414932 Oaktree Specialty Lending Corp OCSL 0001603759 Pendo Mathew C/O OAKTREE SPECIALTY LENDING CORP 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 0 1 0 0 President and COO Common Stock, par value $0.01 per share 2020-03-10 4 P 0 6500 4.5499 A 31540 D The price reported in column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $4.545 to $4.55, inclusive. Upon request by the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, the reporting person undertakes to provide full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Mary Gallegly, attorney-in-fact 2020-03-11