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 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Robert W. McMahon - Officer | Option exercise | Common Stock | 794.47 | - | - | |
| Robert W. McMahon - Officer | Tax withholding / forfeiture | Common Stock | 345.52 | $351.37 | $121K | |
| Robert W. McMahon - Officer | Option exercise | Common Stock | 6,355 | - | - | |
| Robert W. McMahon - Officer | Tax withholding / forfeiture | Common Stock | 2,764 | $351.37 | $971K | |
| Robert W. McMahon - Officer | Option exercise | Rst. Stock Unit | 6,355 | $0.00 | - | |
| Robert W. McMahon - Officer | Option exercise | Rst. Stock Unit | 794.47 | $0.00 | - | |
 Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 46 | $359.00 | $17K | |
| Shane Alden Campbell - Officer | Tax withholding / forfeiture | Common Stock | 84.33 | $312.07 | $26K | |
| Shane Alden Campbell - Officer | Tax withholding / forfeiture | Common Stock | 134.93 | $312.07 | $42K | |
| Shane Alden Campbell - Officer | Option exercise | Common Stock | 296 | - | - | |
| Shane Alden Campbell - Officer | Option exercise | Common Stock | 473.59 | - | - | |
| Shane Alden Campbell - Officer | Option exercise | Rst. Stock Unit | 296 | $0.00 | - | |
| Shane Alden Campbell - Officer | Option exercise | Rst. Stock Unit | 473.59 | $0.00 | - | |
| Paolo Pucci - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Douglas A. Michels - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Stephen H. Lockhart - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
 Goldman Myla Lai - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Deborah L. Keller - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Molly Joseph - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Janet Brutschea Haugen - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Robert F. Friel - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| William F. Feehery - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Mark A. Buthman - Director | Grant or award | Common Stock | 791 | $0.00 | - | |
| Annette F. Favorite - Officer | Option exercise | Common Stock | 2,817 | $83.47 | $235K | |
| Annette F. Favorite - Officer | Open-market sale | Common Stock | 2,817 | $305.20 | $860K | |
| Annette F. Favorite - Officer | Option exercise | Stock Options (Right to Buy) | 2,817 | $0.00 | - | |
| Chad Winters - Officer | Option exercise | Common Stock | 896 | $173.22 | $155K | |
| Chad Winters - Officer | Open-market sale | Common Stock | 896 | $300.67 | $269K | |
| Chad Winters - Officer | Option exercise | Stock Options (Right to Buy) | 896 | $0.00 | - | |
| Janet Brutschea Haugen - Director | Grant or award | Phantom Stock Unit | 52 | $250.64 | $13K | |
| Norman D. Finch Jr. - Officer | Grant or award | Rst. Stock Unit | 1,285 | $0.00 | - | |
| Norman D. Finch Jr. - Officer | Grant or award | Stock Option (Right to Buy) | 3,057 | $0.00 | - | |
| Eric Mark Green - Officer | Grant or award | Rst. Stock Unit | 6,986 | $0.00 | - | |
| Eric Mark Green - Officer | Grant or award | Stock Option (Right to Buy) | 16,630 | $0.00 | - | |
| Annette F. Favorite - Officer | Grant or award | Rst. Stock Unit | 720 | $0.00 | - | |
| Annette F. Favorite - Officer | Grant or award | Stock Option (Right to Buy) | 1,712 | $0.00 | - | |
| Shane Alden Campbell - Officer | Grant or award | Rst. Stock Unit | 1,131 | $0.00 | - | |
| Shane Alden Campbell - Officer | Grant or award | Stock Option (Right to Buy) | 2,691 | $0.00 | - | |
| Robert W. McMahon - Officer | Grant or award | Stock Option (Right to Buy) | 7,337 | $0.00 | - | |
| Robert W. McMahon - Officer | Grant or award | Rst. Stock Unit | 3,082 | $0.00 | - | |
| Rodolphe Jean Poussot - Officer | Grant or award | Rst. Stock Unit | 437 | $0.00 | - | |
| Rodolphe Jean Poussot - Officer | Grant or award | Stock Option (Right to Buy) | 1,040 | $0.00 | - | |
| Chad Winters - Officer | Grant or award | Rst. Stock Unit | 340 | $0.00 | - | |
| Chad Winters - Officer | Grant or award | Stock Option (Right to Buy) | 808 | $0.00 | - | |
| Rodolphe Jean Poussot - Officer | Tax withholding / forfeiture | Common Stock | 129.55 | $241.12 | $31K | |
| Rodolphe Jean Poussot - Officer | Option exercise | Common Stock | 383.38 | - | - | |
| Rodolphe Jean Poussot - Officer | Option exercise | Rst. Stock Unit | 383.38 | $0.00 | - | |
| Charles Witherspoon - Officer | Tax withholding / forfeiture | Common Stock | 22.07 | $241.12 | $5K | |
| Charles Witherspoon - Officer | Option exercise | Common Stock | 60.22 | - | - | |
| Charles Witherspoon - Officer | Option exercise | Rst. Stock Unit | 60.22 | $0.00 | - | |
| Chad Winters - Officer | Tax withholding / forfeiture | Common Stock | 30.18 | $241.12 | $7K | |
| Chad Winters - Officer | Option exercise | Common Stock | 89.33 | - | - | |
| Chad Winters - Officer | Option exercise | Rst. Stock Unit | 89.33 | $0.00 | - | |
| Rodolphe Jean Poussot - Officer | Tax withholding / forfeiture | Common Stock | 27.81 | $248.26 | $7K | |
| Rodolphe Jean Poussot - Officer | Option exercise | Common Stock | 82.3 | - | - | |
| Rodolphe Jean Poussot - Officer | Option exercise | Rst. Stock Unit | 82.3 | $0.00 | - | |
| Charles Witherspoon - Officer | Tax withholding / forfeiture | Common Stock | 41.52 | $243.19 | $10K | |
| Charles Witherspoon - Officer | Grant or award | Common Stock | 115.91 | $0.00 | - | |
| Chad Winters - Officer | Tax withholding / forfeiture | Common Stock | 50.58 | $243.19 | $12K | |
| Chad Winters - Officer | Grant or award | Common Stock | 149.68 | $0.00 | - | |
| Eric Mark Green - Officer | Tax withholding / forfeiture | Common Stock | 1,305 | $243.19 | $317K | |
| Eric Mark Green - Officer | Tax withholding / forfeiture | Common Stock | 573.55 | $248.26 | $142K | |
| Eric Mark Green - Officer | Grant or award | Common Stock | 4,419 | $0.00 | - | |
| Eric Mark Green - Officer | Option exercise | Common Stock | 1,319 | - | - | |
| Eric Mark Green - Officer | Option exercise | Rst. Stock Unit | 1,319 | $0.00 | - |
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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