WEST PHARMACEUTICAL SERVICES INC — Director's Dealing 2011

May 10, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WEST PHARMACEUTICAL SERVICES INC (WST)
CIK: 0000105770
Period of Report: 2011-05-10

Reporting Person: Paproski John E (President-Delivery Systems)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-10	Common Stock	M	9000.0000	$14.4100	Acquired	34086.5155	Direct
2011-05-10	Common Stock	S	9000.0000	$46.9261	Disposed	25086.5155	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-10	Stock Option (Right to Buy)	$14.4100	M	9000.0000	Disposed	2012-03-08	Common Stock (9000.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6463.9034	Indirect
Common Stock	2449.1689	Indirect

Footnotes

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