| Date | Event |
| 9-Nov-09 | AIRGAS INC Files SEC form 10-Q, Quarterly Report |
| 29-Oct-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 19-Oct-09 | Price hit new 52-week high ($51.00) |
| 16-Oct-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition, Triggering Events That Accelerate or In |
| 16-Oct-09 | Price hit new 52-week high ($50.68) |
| 15-Oct-09 | Price hit new 52-week high ($50.54) |
| 22-Sep-09 | Coverage initiated on Airgas by William Blair |
| 14-Sep-09 | AIRGAS INC Files SEC form 8-K, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obli |
| 11-Sep-09 | AIRGAS INC Files SEC form 8-K, Entry into a Material Definitive Agreement |
| 11-Sep-09 | Ex-Date for dividend payment of $0.18 |
| 20-Aug-09 | AIRGAS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 7-Aug-09 | AIRGAS INC Files SEC form 10-Q, Quarterly Report |
| 23-Jul-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 11-Jun-09 | Ex-Date for dividend payment of $0.18 |
| 1-Jun-09 | AIRGAS INC Files SEC form 10-K, Annual Report |
| 6-May-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 24-Mar-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 6-Mar-09 | Price hit new 52-week low ($26.29) |
| 9-Feb-09 | AIRGAS INC Files SEC form 10-Q, Quarterly Report |
| 29-Jan-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 12-Jan-09 | AIRGAS INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 7-Jan-09 | AIRGAS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 14-Nov-08 | AIRGAS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 10-Nov-08 | AIRGAS INC Files SEC form 10-Q, Quarterly Report |