Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s West Pharmaceutical WST Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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
Q2 		$2.03M Buy
+5,660
New +$1.73M ﹤0.01% 435
2021
Q1 		– Sell
-1,297
Closed -$367K – 951
2020
Q4 		$367K Sell
1,297
-9,922
-88% -$2.78M ﹤0.01% 723
2020
Q3 		$3.08M Hold
11,219
– – 0.02% 327
2020
Q2 		$2.55M Sell
11,219
-600
-5% -$118K 0.02% 362
2020
Q1 		$1.8M Buy
11,819
+3,600
+44% +$554K 0.02% 405
2019
Q4 		$1.24M Buy
+8,219
New +$1.2M 0.01% 484

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Vanguard Portfolio Management
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Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
GIM
Generation Investment Management London, United Kingdom $10.3B AUM 4.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s WST Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) opened a new position in West Pharmaceutical (WST) in Q2 2026: 5,660 shares worth $2.03M. The stake represents ﹤0.01% of the portfolio and ranks #435 among its holdings. This is a return to the name: Grantham, Mayo, Van Otterloo & Co (GMO) previously reported a position in WST as recently as Q4 2020.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in WST in Q4 2019 and has held it in 6 quarters since. The position peaked at $3.08M in Q3 2020. 831 funds tracked by Wall St. Rank hold WST as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 5,660 shares of West Pharmaceutical worth $2.03M as of Q2 2026.
  • West Pharmaceutical was a new Grantham, Mayo, Van Otterloo & Co (GMO) position in Q2 2026.
  • West Pharmaceutical made up ﹤0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #435 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in West Pharmaceutical in Q4 2019 and has held it in 6 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s West Pharmaceutical position peaked at $3.08M in Q3 2020.
  • 831 funds tracked by Wall St. Rank held West Pharmaceutical as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.