Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Birkett Bernard

(Last) (First) (Middle)

EXTON PA 19341

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Sr VP, CFO & Treasurer
3. Date of Earliest Transaction (Month/Day/Year)
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/21/2018 A 9,908(1) A $0.00 9,908 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options (Right to buy) $100.92 06/21/2018 A 13,884 06/21/2019(2) 06/21/2028 Common Stock 13,884 $100.92 13,884 D
Explanation of Responses:
1. This award vests over four years starting on the first anniversary date of the award.
2. This award vests in four equal annual installments beginning on June 21, 2019.
Ryan Metz as Agent for Bernard Birkett 06/25/2018
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.



Know all by these presents that the undersigned hereby constitutes and 
appoints each of Luis Cantarero, Jeffrey Tse, Ryan Metz and
Joanne Boyle, signing singly, the undersigneds true and lawful 
attorney-in-fact to: 

(1) Execute for and on behalf of the undersigned, in the undersigneds 
capacity as an officer, director and/or shareholder of West Pharmaceutical 
Services, Inc. (the Company), Forms 3, 4, and 5 and amendments thereto 
in accordance with Section 16(a) of the Securities Exchange Act of 1934 and
 the rules thereunder; 

(2) Do and perform any and all acts for and on behalf of the undersigned 
which may be necessary or desirable to complete and execute any such Form 
3, 4, or 5 or amendment thereto and timely file such form with the United 
States Securities and Exchange Commission (the SEC) and any stock exchange 
or similar authority; and 

(3) Take any other action of any type whatsoever, which, in the opinion of 
such attorney-in-fact, may be necessary or desirable in connection with the
 foregoing authority, it being understood that the documents executed by 
such attorney-in-fact on behalf of the undersigned pursuant to this Power of 
 shall be in such form and shall contain such terms and conditions 
as such attorney-in-fact may approve. 

The undersigned hereby grants to each such attorney-in-fact full power and 
authority to do and perform any and every act and thing whatsoever requisite, 
necessary, or proper to be done in the exercise of any of the rights and 
powers herein granted, as fully to all intents and purposes as the undersigned 
might or could do if personally present, with full power of substitution or 
revocation, hereby ratifying and confirming all that such attorney-in-fact, 
or such attorney-in-facts substitute or substitutes, shall lawfully do or 
cause to be done by virtue of this Power of Attorney and the rights and 
powers herein granted. 

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in
 such capacity at the request of the undersigned, are not assuming, nor is the 
Company assuming, any of the undersigneds responsibilities to comply with 
Section 16 of the Securities Exchange Act of 1934. 

This Power of Attorney shall remain in full force and effect until the 
undersigned is no longer required to file Forms 3, 4, and 5 with respect to 
the undersigneds holdings of and transaction in securities of the Company, 
unless earlier revoked by the undersigned in a signed writing delivered to 
the foregoing attorneys-in-fact. This Power of Attorney may be filed with the 
SEC as a confirming statement of the authority granted herein. 

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be 
executed as of this 21st day of June, 2018. 



/s/ Bernard Birkett