Letters by company
West Pharmaceutical Services INC
2 letters discussing WST. Everything written about it on this site is on its ticker page.
- Artisan Partners Artisan Global Discovery Fund Quarterly Commentary Artisan Global Discovery Fund trimmed Twist Bioscience and Insmed, added to Lattice Semiconductor and Babcock, and exited ROBLOX, Colliers International and MongoDB as valuations, execution risks and competitive conditions changed. The portfolio initiated Entegris, Cellebrite and C.H. Robinson, while retaining emphasis on AI infrastructure, health care innovation and identifiable profit cycles. Q2 2026 0HQW ALAB $66BAS $16B
- Artisan Partners Artisan Global Opportunities Fund Quarterly Commentary Artisan Global Opportunities Fund added Spotify, L3Harris Technologies, Insmed, 3i Group, West Pharmaceutical and Amazon, elevating Amazon to its largest position. It exited Atlassian, Adidas and Vertex Pharmaceuticals, trimmed several software and health care holdings, and shifted technology exposure toward AI infrastructure beneficiaries while retaining conviction in selected health care franchises. Q3 2025 ADDDF $28BAMZN $2.7TARGNF $59B