NYSE:WST

West Pharmaceutical Services Stock Insider Trading

Healthcare > Medical - Instruments & Supplies

Buy WST

*Your capital is at risk

$316.31

+4.14 (+1.33%)

At Close: Jun 03, 2026

West Pharmaceutical Services Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 66.65. In total, the insiders bought 199.62M and sold 7.55M WST shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	66.65
● Buy	199.62M shares
● Sell	7.55M shares
85% Buy Activity Weak Negative Correlation
Sell Signal Low Confidence Apr 27, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 66.65. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Dec 08, 2026 Buy	Stock Option (Right to Buy)	Finch Norman D. Jr. SVP, GC & Corporate Secretary	Officer	459 Value: $123.5K
Aug 11, 2026 Buy	Stock Option (Right to Buy)	Mcmahon Robert W. SVP & Chief Financial Officer	C-Suite Officer	7 137 Value: $1.72M
Aug 11, 2026 Buy	Stock Option (Right to Buy)	Mcmahon Robert W. SVP & Chief Financial Officer	C-Suite Officer	7 137 Value: $1.72M
May 12, 2026 Sell	Common Stock F-InKind	Campbell Shane Alden SVP, Proprietary Segment	Officer	84 Value: $26.3K
May 12, 2026 Buy	Common Stock M-Exempt	Campbell Shane Alden SVP, Proprietary Segment	Officer	296 Value: $92.4K
May 12, 2026 Sell	Common Stock F-InKind	Campbell Shane Alden SVP, Proprietary Segment	Officer	135 Value: $42.1K
May 12, 2026 Buy	Common Stock M-Exempt	Campbell Shane Alden SVP, Proprietary Segment	Officer	474 Value: $147.8K
May 12, 2026 Buy	Rst. Stock Unit M-Exempt	Campbell Shane Alden SVP, Proprietary Segment	Officer	296 Value: $92.4K
May 12, 2026 Buy	Rst. Stock Unit M-Exempt	Campbell Shane Alden SVP, Proprietary Segment	Officer	474 Value: $147.8K
May 12, 2026 Buy	Stock Options (Right to Buy)	Campbell Shane Alden SVP, Proprietary Segment	Officer	2 852 Value: $625.9K
May 04, 2026 Buy	Common Stock A-Award	Pucci Paolo Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Michels Douglas A Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Lockhart Stephen H Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Lai Goldman Myla Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Keller Deborah L Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Joseph Molly Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Haugen Janet Brutschea Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Friel Robert F Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Feehery William F Director	Director	791 Value: $237.4K
May 04, 2026 Buy	Common Stock A-Award	Buthman Mark A Director	Director	791 Value: $237.4K
Apr 27, 2026 Buy	Stock Options (Right to Buy) M-Exempt	Winters Chad Vp, Chief Accounting Officer	Officer	896 Value: $155.2K
Apr 27, 2026 Sell	Common Stock S-Sale	Winters Chad Vp, Chief Accounting Officer	Officer	896 Value: $269.4K
Apr 27, 2026 Buy	Common Stock M-Exempt	Winters Chad Vp, Chief Accounting Officer	Officer	896 Value: $155.2K
Apr 27, 2026 Buy	Stock Options (Right to Buy) M-Exempt	Favorite Annette F Sr. Vp & Chief Hr Officer	Officer	2 817 Value: $235.1K
Apr 27, 2026 Sell	Common Stock S-Sale	Favorite Annette F Sr. Vp & Chief Hr Officer	Officer	2 817 Value: $859.8K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT WEST PHARMACEUTICAL SERVICES INC

West Pharmaceutical Services, Inc. designs, manufactures, and sells containment and delivery systems for injectable drugs and healthcare products in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. It operates in two segments, Proprietary Products and Contract-Manufactured Products. The Proprietary Products segment offers stoppers and seals for injectable packaging systems; syringe and cartridge components, including custom so...

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