SEC Form 4 · accession 0000105770-26-000104
WEST PHARMACEUTICAL SERVICES INC · WST
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Robert W. McMahon
Officer — SVP & Chief Financial Officer
Period of report
Aug 11, 2026
Accepted (ET)
Aug 12, 2026 · 2:56 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000105770
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Aug 11, 2026 | M | 794 | — | A | 3,775 | D | |
| Common Stock | Aug 11, 2026 | F | 346 | $351.37 | D | 3,429 | D | |
| Common StockF1 | Aug 11, 2026 | M | 6,355 | — | A | 9,784 | D | |
| Common Stock | Aug 11, 2026 | F | 2,764 | $351.37 | D | 7,021 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rst. Stock UnitF1,F2 | — | Aug 11, 2026 | M | 6,355 | D | — | — | Common Stock | 6,355 | 2,119 | D |
| Rst. Stock UnitF1,F3 | — | Aug 11, 2026 | M | 794 | D | — | — | Common Stock | 794 | 2,383 | D |
Explanation of responses
- F1Each restricted stock unit represents a contingent right to receive one share of WST common stock.
- F2On August 11, 2025, the reporting person was granted 12,670 restricted stock units, vesting in three installments - 4,223 shares (plus dividend equivalents) to vest six months from the grant date, 6,335 shares (plus dividend equivalents) to vest 12 months from the grant date and 2,112 shares (plus dividend equivalents) to vest 24 months from the grant date.
- F3This award vests in four equal annual installments beginning on August 11, 2026.