West Pharmaceutical Services WST
West Pharmaceutical Services is the 334th largest S&P 500 company by market cap, worth $27.6 billion. 11 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 7 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 13.3% of the company.
- CEO
- Michel Lagarde
- Sector
- Health Care
- Sub-industry
- Health Care Supplies
- Headquarters
- Exton, Pennsylvania
- Founded
- 1923
- More
- Wikipedia
- Market cap
- $27.6B
- 334th largest, 23 Oct 2026 close
- Price to sales
- 9.0
- Market cap over revenue
- Market cap per employee
- $2.6M
- Market cap over employees
- Connections
- 3
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of West Pharmaceutical Services. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
3 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (11) | |
| Michel LagardePresident and CEOAlso at Vertex Pharmaceuticals | |
| Mark A. ButhmanDirectorAlso at IDEX | |
| William F. FeeheryDirector | |
| Robert F. FrielDirectorAlso at Xylem | |
| Janet Brutschea HaugenDirector | |
| Molly JosephDirector | |
| Deborah L. KellerDirector | |
| Goldman Myla LaiDirector | |
| Stephen H. LockhartDirector | |
| Douglas A. MichelsDirector | |
| Paolo PucciDirector | |
| Officers (7) | |
| Robert W. McMahonSVP & Chief Financial OfficerLast filed 12 Aug 2026 | |
| Shane Alden CampbellSVP, Proprietary SegmentLast filed 14 May 2026 | |
| Annette F. FavoriteSr. VP & Chief HR OfficerLast filed 15 Sep 2026 | |
| Norman D. Finch Jr.SVP, GC & Corporate SecretaryLast filed 3 Mar 2026 | |
| Rodolphe Jean PoussotSVP, Strategy & Corporate DevLast filed 3 Mar 2026 | |
| Chad WintersVP, Chief Accounting OfficerLast filed 29 Apr 2026 | |
| Charles WitherspoonVP & TreasurerLast filed 23 Feb 2026 | |
Companies that share people with West Pharmaceutical Services
Each person's title here, then at the other company.
- IDEX IEX
- Mark A. Buthman: Director here, Director there
- Vertex Pharmaceuticals VRTX
- Michel Lagarde: President and CEO here, Director there
- Xylem XYL
- Robert F. Friel: Director here, Director there
West Pharmaceutical Services' market cap since December 2008
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $27.6B |
| 26 Dec 2025 | $19.7B |
| 27 Dec 2024 | $24.1B |
| 29 Dec 2023 | $26.1B |
| 30 Dec 2022 | $17.4B |
| 31 Dec 2021 | $34.7B |
| 25 Dec 2020 | $20.9B |
| 27 Dec 2019 | $11.2B |
| 28 Dec 2018 | $7.1B |
| 29 Dec 2017 | $7.3B |
| 30 Dec 2016 | $6.2B |
| 25 Dec 2015 | $4.4B |
| 26 Dec 2014 | $3.8B |
| 27 Dec 2013 | $3.4B |
| 28 Dec 2012 | $1.9B |
| 30 Dec 2011 | $1.3B |
| 31 Dec 2010 | $1.4B |
| 25 Dec 2009 | $1.3B |
| 26 Dec 2008 | $1.2B |
Download West Pharmaceutical Services' data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 31 Dec 2025
- Employees
- 10,800
As of December 31, 2025, we employed approximately 10,800 people, excluding contractors and temporary workers, in our operations throughout the world.
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $6.6 million of stock in 6 sales and made no open-market purchases in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 15 Sep 2026Sale | Annette F. FavoriteSr. VP & Chief HR Officer | $921K |
| 14 Sep 2026Sale | Annette F. FavoriteSr. VP & Chief HR Officer | $888K |
| 11 Sep 2026Sale | Annette F. FavoriteSr. VP & Chief HR Officer | $863K |
| 8 Sep 2026Sale | Annette F. FavoriteSr. VP & Chief HR Officer | $2.8M |
| 27 Apr 2026Sale | Annette F. FavoriteSr. VP & Chief HR Officer | $860K |
| 27 Apr 2026Sale | Chad WintersVP, Chief Accounting Officer | $269K |
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
6 people disclosed 8 purchases and 8 sales of West Pharmaceutical Services stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 30 Jan 2026 | Arjun ModyDeputy Commissioner 路 Sold | $1K to $15K |
| 29 Jan 2026 | Rohit KhannaHouse, D-CA 路 Bought | $1K to $15K |
| 22 Jul 2025 | Lisa McClainHouse, R-MI 路 Sold | $1K to $15K |
| 17 Jun 2025 | Lisa McClainHouse, R-MI 路 Bought | $1K to $15K |
| 9 Jun 2025 | Stephen I MiranGovernor 路 Sold | $15K to $50K |
| 19 May 2025 | Rohit KhannaHouse, D-CA 路 Bought | $1K to $15K |
| 23 Apr 2025 | Rohit KhannaHouse, D-CA 路 Bought | $1K to $15K |
| 8 Apr 2025 | Rob BresnahanHouse, R-PA 路 Sold | $1K to $15K |
| 12 Mar 2025 | Rohit KhannaHouse, D-CA 路 Sold | $1K to $15K |
| 25 Feb 2025 | Rob BresnahanHouse, R-PA 路 Bought | $1K to $15K |
Showing 10 of 16 trades
WARN layoff notices
Notices filed under West Pharmaceutical Services' own name. Subsidiaries that file under their own names are not included.
Notices from 26 Oct 2023 to 26 Oct 2026
West Pharmaceutical Services filed 1 notice covering 98 workers since October 2023.
| Notice | Place | Workers |
|---|---|---|
| 3 Sep 2026 | Scottsdale, AZ | 98 |