| SC 13G | 2015-08-10 | PRICE T ROWE ASSOCIATES INC /MD/ | WEST PHARMACEUTICAL SERVICES INC | 7,229,413 | 10.0% | EDGAR |
| SC 13G/A | 2015-02-12 | Neuberger Berman Group LLC | WEST PHARMACEUTICAL SERVICES INC | 5,612,744 | 7.9% | EDGAR |
| SC 13G/A | 2015-02-10 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 4,447,660 | 6.3% | EDGAR |
| SC 13G/A | 2015-02-10 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 5,499,584 | 7.7% | EDGAR |
| SC 13G/A | 2015-01-22 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 6,049,645 | 8.5% | EDGAR |
| SC 13G/A | 2014-02-13 | Neuberger Berman Group LLC | WEST PHARMACEUTICAL SERVICES INC | 5,444,772 | 7.8% | EDGAR |
| SC 13G/A | 2014-02-12 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 5,398,394 | 7.7% | EDGAR |
| SC 13G/A | 2014-02-10 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 4,481,279 | 6.4% | EDGAR |
| SC 13G/A | 2014-01-31 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 6,045,680 | 8.7% | EDGAR |
| SC 13G/A | 2013-02-14 | Neuberger Berman Group LLC | WEST PHARMACEUTICAL SERVICES INC | 2,621,882 | 7.7% | EDGAR |
| SC 13G/A | 2013-02-14 | Allianz Global Investors U.S. Holdings LLC | WEST PHARMACEUTICAL SERVICES INC | 4,200 | 0.0% | EDGAR |
| SC 13G/A | 2013-02-11 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 3,295,116 | 9.7% | EDGAR |
| SC 13G/A | 2013-02-11 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 2,406,582 | 7.0% | EDGAR |
| SC 13G/A | 2013-02-08 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 2,537,313 | 7.4% | EDGAR |
| SC 13G/A | 2012-02-14 | Neuberger Berman Group LLC | WEST PHARMACEUTICAL SERVICES INC | 2,257,094 | 6.7% | EDGAR |
| SC 13G/A | 2012-02-13 | Allianz Global Investors Capital LLC | WEST PHARMACEUTICAL SERVICES INC | 1,737,049 | 5.2% | EDGAR |
| SC 13G/A | 2012-02-10 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 2,007,074 | 6.0% | EDGAR |
| SC 13G/A | 2012-02-10 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 2,474,663 | 7.3% | EDGAR |
| SC 13G/A | 2012-02-09 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 3,391,516 | 10.1% | EDGAR |
| SC 13G/A | 2011-02-14 | MUNDER CAPITAL MANAGEMENT | WEST PHARMACEUTICAL SERVICES INC | 0 | 0.0% | EDGAR |