X0202 4 2005-06-21 0000804212 AIRGAS INC ARG 0001237791 VISINTAINER PATRICK M C/O AIRGAS, INC. 259 N. RADNOR-CHESTER ROAD, STE. 100 RADNOR PA 19087 0 1 0 0 Senior Vice President - Sales Common Stock 2005-06-21 4 M 0 500 22.00 A 4324 D Common Stock 2005-06-21 4 M 0 1000 15.63 A 5324 D Common Stock 2005-06-21 4 M 0 2000 13.50 A 7324 D Common Stock 2005-06-21 4 M 0 1000 15.25 A 8324 D Common Stock 2005-06-21 4 M 0 2000 15.94 A 10324 D Common Stock 2005-06-21 4 M 0 1000 11.50 A 11324 D Common Stock 2005-06-21 4 M 0 2500 5.50 A 13824 D Common Stock 2005-06-21 4 M 0 2500 8.99 A 16324 D Common Stock 2005-06-21 4 M 0 2000 16.52 A 18324 D Common Stock 2005-06-21 4 S 0 14500 25.00 D 3824 D Common Stock 558 I By 401(k) Plan Common Stock 40 I By Immediate Family Stock Option (Right to Buy) 22.00 2005-06-21 4 M 0 500 D 2006-05-24 Common Stock 500 1000 D Stock Option (Right to Buy) 15.63 2005-06-21 4 M 0 1000 D 2007-05-14 Common Stock 1000 0 D Stock Option (Right to Buy) 13.50 2005-06-21 4 M 0 2000 D 2007-12-10 Common Stock 2000 2000 D Stock Option (Right to Buy) 15.25 2005-06-21 4 M 0 1000 D 2008-04-27 Common Stock 1000 3000 D Stock Option (Right to Buy) 15.94 2005-06-21 4 M 0 2000 D 2008-05-14 Common Stock 2000 6000 D Stock Option (Right to Buy) 11.50 2005-06-21 4 M 0 1000 D 2009-05-18 Common Stock 1000 3750 D Stock Option (Right to Buy) 5.50 2005-06-21 4 M 0 2500 D 2010-05-16 Common Stock 2500 3825 D Stock Option (Right to Buy) 8.99 2005-06-21 4 M 0 2500 D 2011-05-08 Common Stock 2500 8750 D Stock Option (Right to Buy) 16.52 2005-06-21 4 M 0 2000 D 2012-05-06 Common Stock 2000 10900 D Includes 3,824 shares of Airgas, Inc. common stock acquired pursuant to the Airgas, Inc. 1998 Employee Stock Purchase Plan ("ESPP") as of 6/22/05, the date of the latest available statement of the reporting person's ESPP account. Since 11/19/2004, the date of the statement relied upon for the amount reported on the reporting person's 11/23/2004 Form 4, a total of 93 shares have been acquired in transactions exempt from Section 16(b) pursuant to Rule 16b-3(c). The information presented is as of 06/22/05, the date of the latest available statement of the reporting person's holding of Airgas, Inc. common stock in his 401(k) plan. Options were exercisable in 25% annual increments on each of 5/24/1997, 5/24/1998, and 5/24/1999, 5/24/2000. Options were exercisable in 25% annual increments on each of 5/14/1998, 5/14/1999, and 5/14/2000, 5/14/2001. Options were exercisable in 25% annual increments on each of 12/10/1998, 12/10/1999, 12/10/2000, and 12/10/2001. Options were exercisable in 25% annual increments on each of 4/27/1999, 4/27/2000, 4/27/2001, and 4/27/2002. Options were exercisable in 25% annual increments on each of 5/14/1999, 5/14/2000, 5/14/2001, and 5/14/2002. Options were exercisable in 25% annual increments on each of 5/18/2000, 5/18/2001, 5/18/2002, and 5/18/2003. Options were exercisable in 25% annual increments on each of 5/16/2001, 5/16/2002, 5/16/2003, and 5/16/2004. Options were exercisable in 25% annual increments on each of 5/8/2002, 5/8/2003, 5/8/2004, and 5/8/2005. Options are exercisable in 25% annual increments on each of 5/06/2003, 5/06/2004, 5/06/2005, and 5/06/2006. Not applicable. Todd R. Craun, Attorney-in-Fact for Patrick M. Visintainer 2005-06-23