| 05/10/2012 |
West to Host Analyst and Investor Day |
| 05/08/2012 |
West to Present at Bank of America Merrill Lynch Conference |
| 05/08/2012 |
West Announces Proposed Private Placement of Senior Debt Securities |
| 05/08/2012 |
West Announces Commencement of Cash Tender Offer for Any and All of
Its 4.00% Convertible Junior Subordinated Debentures Due 2047 |
| 05/02/2012 |
West Announces Third Quarter 2012 Dividend and Director Retirement |
| 04/26/2012 |
West Announces First Quarter 2012 Results, Revises 2012 Guidance |
| 04/20/2012 |
West to Host First Quarter 2012 Conference Call |
| 04/17/2012 |
West Pre-Announces First Quarter 2012 Earnings per Share |
| 04/16/2012 |
West Introduces New NovaPure(R) Components |
| 03/06/2012 |
West to Present at Barclays Capital Conference |
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