X0303 4 2009-12-08 0 0000056047 KIRBY CORP KEX 0001097491 LAWRENCE CHARLES BERDON 55 WAUGH DRIVE SUITE 1000 HOUSTON TX 77007 1 1 0 0 Chairman of the Board Common Stock, par value $.10 per share 2009-12-08 4 S 0 34500 33.5746 D 199727 I Partnership Common Stock, par value $.10 per share 2009-12-09 4 S 0 29200 33.2833 D 170527 I Partnership Common Stock, par value $.10 per share 635313 D Common Stock, par value $.10 per share 370000 I Trusts Common Stock, par value $.10 per share 9116 I 401K Plan The reported shares are held by Lawrence Family Interests, LP, a limited partnership of which entities wholly owned by Mr. Lawrence and his wife are the general partners and of which Mr. Lawrence's children and trusts for their benefit are the limited partners. Mr. Lawrence disclaims beneficial ownership of the shares owned by the limited partnership except to the extent of his pecuniary interest in such shares. These shares are owned by trusts for the benefit of members of Mr. Lawrence's family. Mr. Lawrence is not a beneficiary of the trusts, but under their terms, he has the right to acquire the property in the trusts, including the Kirby shares owned by the trusts, by substituting property of equal value. G. Stephen Holcomb, Agent and Attorney-in-Fact 2009-12-09