WEST PHARMACEUTICAL SERVICES INC (WST)
$337.47-$8.62 (-2.49%) Today
West Pharmaceutical Services is based in Pennsylvania and is a key supplier to firms in the pharmaceutical, biotechnology, and generic drug industries. West sells elastomer-based packaging components (including stoppers, seals, and plungers), nonglass containment solutions, and auto-injectors for injectable drugs, which include large-molecule biologics, peptides such as GLP-1 receptor agonists, and small-molecule drugs. The company reports in two segments: proprietary products (about 80% of total revenue) and contract-manufactured products (about 20% of total revenue). It generates approximately 55% of its revenue from international markets and 45% from the United States.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 1 | 46 | |
| Option exercise | 4 | 14,298 | |
| Tax withholding / forfeiture | 2 | 3,109 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
52 Form 4 filings on record, the earliest from Oct 31, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Annette F. Favorite - Officer | Tax withholding / forfeiture | Common Stock | 150.44 | $243.19 | $37K | |
| Annette F. Favorite - Officer | Tax withholding / forfeiture | Common Stock | 35.76 | $248.26 | $9K | |
| Annette F. Favorite - Officer | Grant or award | Common Stock | 441.96 | $0.00 | - | |
| Annette F. Favorite - Officer | Option exercise | Common Stock | 135.49 | - | - | |
| Annette F. Favorite - Officer | Option exercise | Rst. Stock Unit | 135.49 | $0.00 | - | |
| Robert W. McMahon - Officer | Tax withholding / forfeiture | Common Stock | 1,250 | $246.16 | $308K | |
| Robert W. McMahon - Officer | Option exercise | Common Stock | 4,231 | - | - | |
| Robert W. McMahon - Officer | Option exercise | Rst. Stock Unit | 4,231 | $0.00 | - | |
 Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 46 | $275.14 | $13K | |
| Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 48 | $262.33 | $13K | |
| Robert W. McMahon - Officer | Grant or award | Rst. Stock Unit | 12,670 | $0.00 | - | |
| Robert W. McMahon - Officer | Grant or award | Rst. Stock Unit | 3,168 | $0.00 | - | |
| Robert W. McMahon - Officer | Grant or award | Stock Option (Right to Buy) | 7,647 | $240.33 | $1.84M | |
| Robert W. McMahon - Officer | Grant or award | Stock Option (Right to Buy) | 7,137 | $240.33 | $1.72M | |
| Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 58 | $218.80 | $13K | |
| Shane Alden Campbell - Officer | Grant or award | Rst. Stock Unit | 1,891 | $0.00 | - | |
| Shane Alden Campbell - Officer | Grant or award | Rst. Stock Unit | 1,182 | $0.00 | - | |
| Shane Alden Campbell - Officer | Grant or award | Stock Options (Right to Buy) | 2,852 | $219.46 | $626K | |
 Goldman Myla Lai - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Douglas A. Michels - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Robert F. Friel - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Janet Brutschea Haugen - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| William F. Feehery - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Paolo Pucci - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Stephen H. Lockhart - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Thomas W. Hofmann - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Deborah L. Keller - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Molly Joseph - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Mark A. Buthman - Director | Grant or award | Common Stock | 1,071 | $0.00 | - | |
| Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 56 | $223.88 | $13K | |
| Janet Brutschea Haugen - Director | Grant or award | Common Stock | 424 | - | - | |
| Silji Abraham - Officer | Option exercise | Common Stock | 458.02 | $0.00 | - | |
| Silji Abraham - Officer | Tax withholding / forfeiture | Common Stock | 180.23 | $318.41 | $57K | |
| Silji Abraham - Officer | Option exercise | Rst. Stock Unit | 458.02 | $0.00 | - | |
| Charles Witherspoon - Officer | Option exercise | Common Stock | 478 | $173.22 | $83K | |
| Charles Witherspoon - Officer | Open-market sale | Common Stock | 478 | $310.40 | $148K | |
| Charles Witherspoon - Officer | Open-market sale | Common Stock | 225 | $310.40 | $70K | |
| Charles Witherspoon - Officer | Option exercise | Stock Options (Right to Buy) | 478 | $0.00 | - |
This is as far as the anonymous view goes. Create a free account for all 52 WST filings on record.
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR |
WEST PHARMACEUTICAL SERVICES INC (WST) had 2 insider filings in the last 90 days, with the most recent on 2026-08-12. The full record for WST runs to 52 Form 4 filings, the earliest from 2024-10-31. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of WST were filed in the last 90 days.
No insider sales of WST were filed in the last 90 days. 4 sales are on record for this company.
This page tracks WST Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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