WST
WEST PHARMACEUTICAL SERVICES INC
Surgical & Medical Instruments & ApparatusNYSELarge accelerated filer
Total Trades
47
Buys
0
Sells
26
Largest Trade
$1M+
Insiders
8
Institutional Funds
688
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Witherspoon Charles | VP & Treasurer | SELL | $100K–$500K | 703 | $310.40 | Oct 31, 2024 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $50K–$100K | 478 | $173.22 | Oct 31, 2024 |
| Witherspoon Charles | VP & Treasurer | SELL | $100K–$500K | 1K | $300.00 | Aug 21, 2024 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $50K–$100K | 529 | $102.51 | Aug 21, 2024 |
| Hofmann Thomas W | Director | SELL | $100K–$500K | 617 | $365.92 | Aug 21, 2024 |
| Abraham Silji | CTO | SELL | $500K+ | 2K | $330.78 | Jun 13, 2024 |
| Witherspoon Charles | VP & Treasurer | SELL | $500K+ | 2K | $358.62 | Mar 1, 2024 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $100K–$500K | 2K | $102.51 | Mar 1, 2024 |
| Green Eric Mark | President | SELL | $1M+ | 64K | $359.85 | Feb 29, 2024 |
| Green Eric Mark | President | EXERCISE | $1M+ | 73K | $57.38 | Feb 29, 2024 |
| Abraham Silji | CTO | EXERCISE | $1M+ | 7K | $173.22 | Feb 27, 2024 |
| Abraham Silji | CTO | SELL | $1M+ | 7K | $365.00 | Feb 27, 2024 |
| Witherspoon Charles | VP & Treasurer | SELL | $100K–$500K | 1K | $322.37 | Nov 2, 2023 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $100K–$500K | 1K | $223.84 | Nov 2, 2023 |
| Favorite Annette F | Sr. VP & Chief HR … | SELL | $500K+ | 2K | $414.64 | Sep 1, 2023 |
| Favorite Annette F | Sr. VP & Chief HR … | EXERCISE | $100K–$500K | 2K | $83.47 | Sep 1, 2023 |
| Reiss-Clark Cindy | Chief Commercial O… | EXERCISE | $500K+ | 3K | $263.16 | Aug 24, 2023 |
| Reiss-Clark Cindy | Chief Commercial O… | SELL | $1M+ | 3K | $393.34 | Aug 24, 2023 |
| Lai Quintin J | VP Strat & Investo… | EXERCISE | $1M+ | 21K | $125.40 | Aug 15, 2023 |
| Lai Quintin J | VP Strat & Investo… | SELL | $1M+ | 21K | $395.12 | Aug 15, 2023 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $100K–$500K | 2K | $137.87 | Aug 11, 2023 |
| Witherspoon Charles | VP & Treasurer | SELL | $500K+ | 2K | $396.54 | Aug 11, 2023 |
| Abraham Silji | CTO | SELL | $1M+ | 8K | $397.18 | Aug 10, 2023 |
| Abraham Silji | CTO | EXERCISE | $500K+ | 8K | $102.51 | Aug 10, 2023 |
| Green Eric Mark | President & CEO | SELL | $1M+ | 44K | $394.77 | Aug 10, 2023 |
| Green Eric Mark | President & CEO | EXERCISE | $1M+ | 50K | $57.38 | Aug 10, 2023 |
| Birkett Bernard | Sr VP | SELL | $1M+ | 22K | $370.39 | Aug 8, 2023 |
| Birkett Bernard | Sr VP | EXERCISE | $1M+ | 22K | $101.52 | Aug 8, 2023 |
| Witherspoon Charles | VP & Treasurer | SELL | $100K–$500K | 1K | $343.05 | May 31, 2023 |
| Witherspoon Charles | VP & Treasurer | EXERCISE | $100K–$500K | 1K | $102.51 | May 31, 2023 |
| Green Eric Mark | President & CEO | EXERCISE | $1M+ | 50K | $57.38 | May 11, 2023 |
| Green Eric Mark | President & CEO | SELL | $1M+ | 44K | $363.10 | May 11, 2023 |
| Hofmann Thomas W | Director | SELL | $100K–$500K | 1K | $365.57 | May 2, 2023 |
| Abraham Silji | CTO | SELL | $1M+ | 8K | $365.60 | May 2, 2023 |
| Abraham Silji | CTO | EXERCISE | $500K+ | 8K | $86.24 | May 2, 2023 |
| Favorite Annette F | Sr. VP & Chief HR … | SELL | $1M+ | 13K | $365.81 | May 2, 2023 |
| Favorite Annette F | Sr. VP & Chief HR … | EXERCISE | $500K+ | 13K | $59.64 | May 2, 2023 |
| Abraham Silji | CTO | SELL | $100K–$500K | 2K | $322.57 | Mar 22, 2023 |
| Abraham Silji | CTO | GRANT | $50K–$100K | 234 | $318.28 | Mar 22, 2023 |
| Green Eric Mark | President & CEO | EXERCISE | $1M+ | 50K | $57.38 | Mar 9, 2023 |
| Green Eric Mark | President & CEO | SELL | $1M+ | 44K | $322.35 | Mar 9, 2023 |
| Green Eric Mark | President & CEO | SELL | $1M+ | 44K | $238.99 | Dec 8, 2022 |
| Green Eric Mark | President & CEO | EXERCISE | $1M+ | 50K | $57.38 | Dec 8, 2022 |
| Birkett Bernard | Sr VP, CFO & COO | SELL | $1M+ | 14K | $341.19 | Aug 3, 2022 |
| Abraham Silji | Chief Digital & Tr… | SELL | $1M+ | 5K | $343.93 | Aug 3, 2022 |
| Lai Quintin J | VP Corp Developmen… | EXERCISE | $500K+ | 8K | $86.76 | Mar 16, 2022 |
| Lai Quintin J | VP Corp Developmen… | SELL | $1M+ | 8K | $371.69 | Mar 16, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 688 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 8.8M | $1M+ | SH |
| STATE STREET CORP | 3.3M | $1M+ | SH |
| BROWN ADVISORY INC | 1.8M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7M | $1M+ | SH |
| GENERATION INVESTMENT MANAGEMENT LLP | 1.6M | $1M+ | SH |
| Longview Partners (Guernsey) LTD | 1.1M | $1M+ | SH |
| APG Asset Management N.V. | 1.2M | $1M+ | SH |
| NORGES BANK | 989K | $1M+ | SH |
| Findlay Park Partners LLP | 667K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 640K | $1M+ | SH |
| ProShare Advisors LLC | 587K | $1M+ | SH |
| TD ASSET MANAGEMENT INC | 583K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 543K | $1M+ | SH |
| Champlain Investment Partners, LLC | 475K | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 449K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 445K | $1M+ | SH |
| GATES FOUNDATION TRUST | 445K | $1M+ | SH |
| Neuberger Berman Group LLC | 421K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 375K | $1M+ | SH |
| DF DENT & CO INC | 320K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Oct 31, 2025
13.5%
9.7M shares
SC 13G/A · Apr 24, 2025
8.4%
6.1M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
12.2%
9.0M shares
SC 13G/A · Jan 24, 2024
10.5%
7.8M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2023
3.1%
2.3M shares
SC 13G · Jan 24, 2023
11.0%
8.1M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
8.4%
6.2M shares
SC 13G/A · Jan 27, 2022
10.9%
8.1M shares
SC 13G/A · Jan 25, 2022
10.9%
8.1M shares