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Longview Partners’s West Pharmaceutical WST Stock Holding History

Longview Partners’s Portfolio WST Stock Details WST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$330M Buy
1,315,403
+184,377
+16% +$45.9M 4.67% 1
2025
Q4 		$311M Buy
1,131,026
+778,887
+221% +$213M 3.25% 22
2025
Q3 		$92.4M Buy
+352,139
New +$85.6M 0.97% 23

Other funds holding WST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
GIM
Generation Investment Management London, United Kingdom $11.2B AUM 0.58% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Longview Partners's WST Position: Q1 2026 in Review

Longview Partners increased its West Pharmaceutical (WST) stake by 16% in Q1 2026, buying an estimated $45.9M and bringing the position to 1,315,403 shares worth $330M. The position accounts for 4.67% of the portfolio, ranked #1.

Longview Partners first reported a position in WST in Q3 2025 and has held it in 3 quarters since. 753 funds tracked by Wall St. Rank hold WST as of Q1 2026.

  • Longview Partners held 1,315,403 shares of West Pharmaceutical worth $330M as of Q1 2026.
  • Longview Partners bought 184,377 West Pharmaceutical shares in Q1 2026, an estimated $45.9M.
  • West Pharmaceutical made up 4.67% of Longview Partners's portfolio in Q1 2026, its #1 holding.
  • Longview Partners first reported a position in West Pharmaceutical in Q3 2025 and has held it in 3 quarters since.
  • 753 funds tracked by Wall St. Rank held West Pharmaceutical as of Q1 2026.

Based on Longview Partners's 13F filing for Q1 2026, filed 15 May 2026.