X0303 4 2010-03-15 0 0001326003 BlackRock Kelso Capital CORP BKCC 0001141328 MAHER JAMES R C/O BLACKROCK KELSO CAPITAL CORPORATION 40 EAST 52ND STREET NEW YORK NY 10022 1 1 0 1 Chief Executive Officer C.E.O. of investment adviser Common Stock, par value $0.001 per share 2010-03-15 4 A 0 82160 0 A 497782.58 D Common Stock, par value $0.001 per share 42493.31 I By BlackRock Kelso Capital Advisors LLC Restricted Shares granted by BlackRock Kelso Capital Advisors LLC ("Advisor") pursuant to a Restricted Stock Agreement, dated March 15, 2010, vesting in equal installments on January 2, 2011, 2012 and 2013. Includes 7,600.79 Restricted Shares granted by Advisor pursuant to a Restricted Stock Agreement, dated December 31, 2007, vesting on January 2, 2011; and 19,646 Restricted Shares granted by Advisor pursuant to a Restricted Stock Agreement, dated January 2, 2009, vesting in equal installments on January 2, 2011 and 2012. Excludes shares owned by the individual's adult children and shares owned by a family trust, as to each of which the individual disclaims beneficial ownership. The Reporting Person, as a Manager of Advisor, may be deemed to beneficially own all the Common Stock of the Issuer owned by Advisor. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein and the inclusion of such shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or otherwise. James R. Maher, by Frank Gordon, Attorney-in-Fact 2010-03-16