WEST PHARMACEUTICAL SERVICES INC — Director's Dealing 2011

May 4, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WEST PHARMACEUTICAL SERVICES INC (WST)
CIK: 0000105770
Period of Report: 2011-05-04

Reporting Person: McMillan Donald A (President Pharma Systems NA)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-04	Common Stock	M	3000.0000	$25.5300	Acquired	16858.4646	Direct
2011-05-04	Common Stock	S	3000.0000	$46.8620	Disposed	13858.4646	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-04	Stock Option (Right to Buy)	$25.5300	M	3000.0000	Disposed	2015-03-09	Common Stock (3000.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3712.1159	Indirect
Common Stock	1114.3029	Indirect

Footnotes

F1: Reflects additional shares purchased through dividend reinvestments based on most recent plan statement.