West Pharmaceutical Services Inc
WST- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0000105770
In the last 90 days, West Pharmaceutical Services Inc insiders filed 0 open-market purchases and 2 sales; 839 institutions reported holding it in 13F filings for Q2 2026, worth $25.2B in total; Gates Foundation Trust is the only superinvestor holding it.
Holders of 5% or more of WST
Holders whose latest Schedule 13D or 13G filing reports 5% or more of West Pharmaceutical Services Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| FMR LLC | 13G/A | 8.50%5.96M shares | +3.50 ppfrom 5.00% | Aug 6, 20262 filings | Nov 5, 2026 | SEC |
| BlackRock, Inc. | 13G/A | 8.40%6.07M shares | – | Apr 24, 20251 filing | Apr 24, 2025 | SEC |
| Vanguard Capital Management LLC | 13G | 7.48%5.40M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.69%4.10M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
22 Schedule 13D and 13G filings on West Pharmaceutical Services Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 5, 20261:29 PM ET | FMR LLCand 1 other | 13G/A | 8.50%5.96M shares | +3.50 ppfrom 5.00% | Sep 30, 2026 | SEC |
| Aug 6, 202610:43 AM ET | FMR LLCand 1 other | 13G | 5.00%3.56M shares | New | Jun 30, 2026 | SEC |
| Apr 30, 20262:26 PM ET | Vanguard Capital Management LLC | 13G | 7.48%5.40M shares | New | Mar 31, 2026 | SEC |
| Apr 29, 20263:46 PM ET | Vanguard Portfolio Management LLC | 13G | 5.69%4.10M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20262:13 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −13.49 ppfrom 13.49%Below 5% | Mar 13, 2026 | SEC |
| Oct 31, 202511:41 AM ET | Vanguard Group Inc | 13G/A | 13.49%9.70M shares | – | Sep 30, 2025 | SEC |
| Apr 24, 20259:52 AM ET | BlackRock, Inc. | 13G/A | 8.40%6.07M shares | – | Mar 31, 2025 | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 24, 20245:23 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 24, 20231:56 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Feb 14, 2022 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 4, 2022 | Franklin Resources Inc | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20228:18 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 25, 202211:15 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Apr 9, 20216:02 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 2, 2021 | Franklin Resources Inc | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20218:30 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
8 notices from officers, directors and other affiliates planning to sell West Pharmaceutical Services Inc shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| May 7, 20263:34 PM ET | Hofmann Thomas WDirector | 3.38K | $1.09M | May 7, 2026 | Fidelity Brokerage Services LLC | SEC |
| Aug 6, 20244:47 PM ET | Green Eric MarkOfficer · Director | 30.7K | $9.36M | Aug 6, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 10, 20241:35 PM ET | Hofmann Thomas WDirector | 617 | $225.8K | May 10, 2024 | Fidelity Brokerage Services LLC | SEC |
| May 7, 20243:39 PM ET | Green Eric MarkOfficer · Director | 66.0K | $24.3M | May 7, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 27, 20244:23 PM ET | Green Eric MarkOfficer · Director | 64.1K | $23.1M | Feb 27, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Aug 8, 20235:58 PM ET | Eric GreenOfficer · Director | 44.0K | $17.4M | Aug 8, 202310b5-1 | Morgan Stanley Smith Barney LLC | SEC |
| May 9, 20235:07 PM ET | Eric GreenOfficer · Director | 44.0K | $16.0M | May 9, 202310b5-1 | Morgan Stanley Smith Barney LLC | SEC |
| May 1, 20237:56 PM ET | Thomas HofmannDirector | 1.21K | $443.1K | May 1, 2023 | Morgan Stanley Smith Barney LLC | SEC |