X0202 3 2006-04-24 0 0000001800 ABBOTT LABORATORIES ABT 0001360147 Chen Thomas F 100 ABBOTT PARK ROAD ABBOTT PARK IL 60064-6400 0 1 0 0 Senior Vice President Common shares without par value 57140 D Common shares without par value 16708 I Profit Sharing Trust Common shares without par value 23798 I By wife Common shares without par value 2476 I By self for daughter Option (right to buy) 42.4978 2002-02-12 2009-02-11 Common shares 40433 D Option (right to buy) 39.7160 2001-01-18 2007-02-13 Common shares 5137 D Option (right to buy) 49.4617 2001-05-21 2008-02-12 Common shares 15202 D Option (right to buy) 45.4488 2004-02-09 2011-02-08 Common shares 53202 D Option (right to buy) 52.2529 2002-06-22 2010-02-10 Common shares 9686 D Option (right to buy) 53.6250 2005-02-15 2012-02-14 Common shares 53201 D Option (right to buy) 41.1445 2003-06-03 2010-02-10 Common shares 20437 D Option (right to buy) 33.2314 2006-02-14 2013-02-13 Common shares 3050 D Option (right to buy) 41.9715 2003-12-06 2010-02-10 Common shares 12804 D Option (right to buy) 41.0317 2006-02-20 2014-02-19 Common shares 21281 D Option (right to buy) 41.0317 2007-02-20 2014-02-19 Common shares 10639 D Option (right to buy) 41.5392 2004-10-21 2013-02-13 Common shares 15585 D Option (right to buy) 44.9600 2005-05-10 2007-02-13 Common shares 2701 D Option (right to buy) 44.9600 2005-05-10 2010-02-10 Common shares 2223 D Option (right to buy) 44.9600 2005-05-10 2008-02-12 Common shares 2283 D Option (right to buy) 44.9600 2005-05-10 2008-02-12 Common shares 18444 D Option (right to buy) 46.3400 2006-02-18 2015-02-17 Common shares 11600 D Option (right to buy) 46.3400 2007-02-18 2015-02-17 Common shares 11600 D Option (right to buy) 46.3400 2008-02-18 2015-02-17 Common shares 11600 D Option (right to buy) 48.6700 2005-11-26 2013-02-13 Common shares 14418 D Option (right to buy) 42.8300 2006-08-15 2013-02-13 Common shares 12441 D Option (right to buy) 44.1600 2007-02-17 2016-02-16 Common shares 12000 D Option (right to buy) 44.1600 2008-02-17 2016-02-16 Common shares 12000 D Option (right to buy) 44.1600 2009-02-17 2016-02-16 Common shares 12000 D Balance in the Abbott Laboratories Stock Retirement Trust as of April 28, 2006. Reporting person disclaims beneficial ownership of securities held by his wife and daughter. Employee stock options granted pursuant to the Abbott Laboratories 1996 Incentive Stock Program, including a replacement option feature, in a transaction exempt from Section 16(b) under Rule 16b-3. Employee stock options granted pursuant to the Abbott Laboratories 1996 Incentive Stock Program in a transaction exempt from Section 16(b) under Rule 16b-3. John A. Berry by power of attorney for Thomas F. Chen 2006-05-01