West Pharmaceutical Services, Inc. (WST) Insider Trading
Over the last 6 months, 570 institutions increased and 549 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Mar
May
Jun
Aug
Oct
Apr
Context3-month price +4.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 12, 2026 | McMahon Robert W.officer: SVP & Chief Financial Officer | Option | 6,355 | — |
| Aug 12, 2026 | McMahon Robert W.officer: SVP & Chief Financial Officer | Option | 794 | — |
| Aug 12, 2026 | McMahon Robert W.officer: SVP & Chief Financial Officer | Tax | 2,764 | $351.37 |
| Aug 12, 2026 | McMahon Robert W.officer: SVP & Chief Financial Officer | Tax | 346 | $351.37 |
| Jul 1, 2026 | HAUGEN JANET BRUTSCHEAdirector | Grant | 46 | — |
| May 14, 2026 | Campbell Shane Aldenofficer: SVP, Proprietary Segment | Tax | 84 | $312.07 |
| May 14, 2026 | Campbell Shane Aldenofficer: SVP, Proprietary Segment | Option | 474 | — |
| May 14, 2026 | Campbell Shane Aldenofficer: SVP, Proprietary Segment | Tax | 135 | $312.07 |
| May 14, 2026 | Campbell Shane Aldenofficer: SVP, Proprietary Segment | Option | 296 | — |
| May 6, 2026 | Pucci Paolodirector | Grant | 791 | — |
| May 6, 2026 | HAUGEN JANET BRUTSCHEAdirector | Grant | 791 | — |
| May 6, 2026 | Keller Deborah Ldirector | Grant | 791 | — |
| May 6, 2026 | LAI GOLDMAN MYLAdirector | Grant | 791 | — |
| May 6, 2026 | Joseph Mollydirector | Grant | 791 | — |
| May 6, 2026 | Lockhart Stephen Hdirector | Grant | 791 | — |
| May 6, 2026 | FRIEL ROBERT Fdirector | Grant | 791 | — |
| May 6, 2026 | Michels Douglas Adirector | Grant | 791 | — |
| May 6, 2026 | Feehery William Fdirector | Grant | 791 | — |
| May 6, 2026 | BUTHMAN MARK Adirector | Grant | 791 | — |
| Apr 29, 2026 | Favorite Annette Fofficer: Sr. VP & Chief HR Officer | Option | 2,817 | $83.47 |
| Apr 29, 2026 | Winters Chadofficer: VP, Chief Accounting Officer | Option | 896 | $173.22 |
| Apr 29, 2026 | Winters Chadofficer: VP, Chief Accounting Officer | Sell | 896 | $300.67 |
| Apr 29, 2026 | Favorite Annette Fofficer: Sr. VP & Chief HR Officer | Sell | 2,817 | $305.20 |
| Feb 23, 2026 | Witherspoon Charlesofficer: VP & Treasurer | Tax | 22 | $241.12 |
| Feb 23, 2026 | Winters Chadofficer: VP, Chief Accounting Officer | Option | 89 | — |
| Feb 23, 2026 | Poussot Rodolphe Jeanofficer: SVP, Strategy & Corporate Dev | Tax | 130 | $241.12 |
| Feb 23, 2026 | Poussot Rodolphe Jeanofficer: SVP, Strategy & Corporate Dev | Option | 383 | — |
| Feb 23, 2026 | Witherspoon Charlesofficer: VP & Treasurer | Option | 60 | — |
| Feb 23, 2026 | Winters Chadofficer: VP, Chief Accounting Officer | Tax | 30 | $241.12 |
| Feb 19, 2026 | Witherspoon Charlesofficer: VP & Treasurer | Grant | 116 | — |
Source: WST SEC Form 4 filings, latest Aug 12, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their WST positions over the last 6 months (SEC Form 13F).
Increased
570
New positions
242
Reduced
549
Sold out
65
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 6.8M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 6.7M | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.7M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 4.6M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 4.1M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 4.0M | Aug 13, 2026 |
| FMR LLC | Increased | 3.6M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 3.3M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 3.3M | May 15, 2026 |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | Reduced | 2.7M | May 13, 2026 |
| BANK OF NEW YORK MELLON CORP | Reduced | 2.5M | May 5, 2026 |
| Artisan Partners Limited Partnership | Reduced | 2.4M | Aug 13, 2026 |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | Increased | 2.3M | May 15, 2026 |
| GENERATION INVESTMENT MANAGEMENT LLP | Increased | 2.2M | May 14, 2026 |
| Bank of New York Mellon Corp | Reduced | 2.0M | Aug 6, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.