WST insider trading — West Pharmaceutical Services Inc
Over the last 90 days, insiders at West Pharmaceutical Services Inc (WST) made 0 open-market purchases worth $0 and 1 open-market sale worth $2.77M, making them net sellers by $2.77M. The largest sale was by Favorite Annette F (Sr. VP & Chief HR Officer), who sold 8,135 shares for $2.77M on Sep 8, 2026.
Updated Oct 16, 2026.
Recent WST insider transactions
Every Form 4 filed by West Pharmaceutical Services Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | M · Option exercise · 10b5-1 | Direct | 2,524 | $89.64 | $226K | Form 4 |
| Sep 15, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | S · Sale · 10b5-1 | Direct | 2,524 | $365.00 | $921K | Form 4 |
| Sep 14, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | M · Option exercise · 10b5-1 | Direct | 2,500 | $89.64 | $224K | Form 4 |
| Sep 14, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | S · Sale · 10b5-1 | Direct | 2,500 | $355.00 | $888K | Form 4 |
| Sep 11, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | M · Option exercise · 10b5-1 | Direct | 2,500 | $89.64 | $224K | Form 4 |
| Sep 11, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | S · Sale · 10b5-1 | Direct | 2,500 | $345.00 | $862K | Form 4 |
| Sep 8, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | M · Option exercise | Direct | 8,135 | $85.37 | $694K | Form 4 |
| Sep 8, 2026 | Favorite Annette F | Sr. VP & Chief HR Officer | S · Sale | Direct | 8,135 | $340.81 | $2.77M | Form 4 |
| Aug 11, 2026 | Mcmahon Robert W. | SVP & Chief Financial Officer | M · Option exercise | Direct | 7,149 | — | — | Form 4 |
| Aug 11, 2026 | Mcmahon Robert W. | SVP & Chief Financial Officer | F · Tax withholding | Direct | 3,109 | $351.37 | $1.09M | Form 4 |
WST insider trading FAQ
Are insiders buying WST stock?
Not on the open market. In the last 90 days, West Pharmaceutical Services Inc insiders made no open-market purchases, and 1 open-market sale totaling $2.77M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading WST?
Recent sellers: Favorite Annette F.
Where does WST insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.