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Company profile

West Pharmaceutical Services Inc Insider Trading

WST

Every SEC Form 4 insider trading filing for West Pharmaceutical Services Inc (WST) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Surgical & Medical Instruments & Apparatus
CIK
0000105770
Filings
122
Insiders
25
Last filing
2026-09-15
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $5.4M across 6 transactions.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. West Pharmaceutical Services Inc insiders are net sellers across the period shown.

PurchasesSales
Q4 23Q1 24$49.2MQ2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $49.2M.

90 day insight

Over the last 90 days, West Pharmaceutical Services Inc insiders sold $5.4M across 6 transactions with no open-market purchases.

  • Most active insider: Annette F Favorite with 18 transactions totaling $6.8M.
  • Largest single sale: $960K by Annette F Favorite on Sep 8, 2026.

Activity skews bearish: sales outpace buys.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Sep 15, 2026Annette F FavoriteWST
Option Exercise
2,524$89.64$226K-0.9% 1d
Sep 15, 2026Annette F FavoriteWST
Sale
2,524$365.00$921K-0.9% 1d
Sep 15, 2026Annette F FavoriteWST
Option Exercise
2,524——-0.9% 1d
Sep 14, 2026Annette F FavoriteWST
Option Exercise
2,500$89.64$224K-0.9% 1d
Sep 14, 2026Annette F FavoriteWST
Sale
2,500$355.00$888K-0.9% 1d

45 more transactions hidden

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Institutional Ownership

Top 13F-HR holders of West Pharmaceutical Services Inc as of 2026-06-30

↓ decreasing
Total reported AUM
$7.32B
QoQ change
-52.2%
Reporting period
2026-06-30
#1
State Street Corp
CIK 0000093751
$1.20B
3.3M shares
#2
BlackRock, Inc.
CIK 0002012383
$860.8M
2.4M shares
#3
Generation Investment Management LLP
CIK 0001375534
$728.2M
2.0M shares

Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed WST trades under the STOCK Act

Total trades
5
Purchases
2
Sales
3
Robert P. Bresnahan, Jr.
Republican · House · PA
1 buy
1 sell
Lisa C. McClain
Republican · House · MI
1 buy
1 sell
Jared Moskowitz
Democrat · House · FL
0 buys
1 sell

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

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