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Polar Asset Management Partners’s West Pharmaceutical WST Stock Holding History

Polar Asset Management 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
2025
Q3 		– Sell
-5,901
Closed -$1.29M – 821
2025
Q2 		$1.29M Sell
5,901
-47,169
-89% -$10.1M 0.02% 341
2025
Q1 		$11.9M Buy
53,070
+27,370
+106% +$7.54M 0.27% 89
2024
Q4 		$8.42M Buy
25,700
+7,500
+41% +$2.36M 0.1% 176
2024
Q3 		$5.46M Buy
+18,200
New +$5.57M 0.12% 174

Other funds holding WST

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 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
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
APG Asset Management
APG Asset Management Amsterdam, Netherlands $31.6B AUM 19.33% 1-Year Est. Return

Polar Asset Management Partners's WST Position: Q3 2025 in Review

Polar Asset Management Partners sold out of West Pharmaceutical (WST) in Q3 2025, closing a stake of 5,901 shares — an estimated $1.29M sold.

Polar Asset Management Partners first reported a position in WST in Q3 2024 and held it in 4 quarters. The position peaked at $11.9M in Q1 2025. 756 funds tracked by Wall St. Rank hold WST as of Q3 2025.

  • Polar Asset Management Partners reported no remaining West Pharmaceutical position as of Q3 2025 after selling out during the quarter.
  • Polar Asset Management Partners sold 5,901 West Pharmaceutical shares in Q3 2025, an estimated $1.29M.
  • Polar Asset Management Partners first reported a position in West Pharmaceutical in Q3 2024 and held it in 4 quarters.
  • Polar Asset Management Partners's West Pharmaceutical position peaked at $11.9M in Q1 2025.
  • 756 funds tracked by Wall St. Rank held West Pharmaceutical as of Q3 2025.

Based on Polar Asset Management Partners's 13F filing for Q3 2025, filed 14 Nov 2025.