🕵️ West Pharmaceutical Services Inc ($WST)
SEC insider & ownership activity, last 12 months · CIK 105770 · every row links its SEC filing
Over the last 12 months insiders sold $1.1M with no open-market buying against it. Annette F. Favorite sold $860K in discretionary trades (Apr). 1 planned sale is pending, the largest $1.1M (Thomas W. Hofmann). 2 red-flag 8-Ks in the window, most recently Cyber incident (1.05), May 7, 2026.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 2 sellers, $1.1M (2 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Annette F. Favorite | 0 | – | 1 | $860K | Apr 27, 2026 |
| Winters Chad | 0 | – | 1 | $269K | Apr 27, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 8.4% | 13G | Apr 24, 2025 | filing ↗ | |
| Vanguard Capital Management | 7.5% | 13G | Apr 30, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 5.7% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Thomas W. Hofmann | $1.1M | May 7, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 14, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 31, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 31, 2026 | filing ↗ |
| Cyber incident (1.05) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Cyber incident (1.05) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Earnings (2.02) | Apr 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 23, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 9, 2026 | filing ↗ |
| Earnings (2.02) | Feb 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 12, 2026 | filing ↗ |
| Earnings (2.02) | Oct 23, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 23, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 23, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 11, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 11, 2025 | filing ↗ |