X0306 4 2019-06-26 0 0001736035 Blackstone / GSO Secured Lending Fund NONE 0001394691 Goodman Bennett J C/O GSO CAPITAL PARTNERS LP 345 PARK AVENUE NEW YORK NY 10154 0 0 0 1 Trustee & Chairman Common Shares of Beneficial Interest 2019-06-26 4 A 0 245422.67 25.67 A 713940.5 I See Footnotes The Issuer delivered a capital drawdown notice on June 13, 2019 and upon delivery of such capital drawdown notice, Blackstone BGSL Holdings LLC became obligated to make a capital contribution to purchase common shares at a price per share that was determined on June 26, 2019. Reflects securities held directly by Blackstone BGSL Holdings LLC. GSO Capital Partners LP is the managing member of Blackstone BGSL Holdings LLC. Bennett J. Goodman may be deemed to have shared voting power and/or investment power with respect to the securities beneficially owned by GSO Capital Partners LP. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, the Reporting Person states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose. /s/ Marisa J. Beeney, as Attorney-in-Fact 2019-06-27