Ostrum Asset Management’s West Pharmaceutical WST Stock Holding History

Ostrum Asset Management’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	$534K	Hold	1,487	–	–	0.03%	316
2026 Q1	$373K	Buy	1,487 +746	+101%	+$186K	0.02%	371
2025 Q4	$204K	Sell	741 -246	-25%	-$67.3K	0.01%	460
2025 Q3	$259K	Sell	987 -32	-3%	-$7.78K	0.01%	470
2025 Q2	$223K	Sell	1,019 -30	-3%	-$6.41K	0.01%	482
2025 Q1	$235K	Sell	1,049 -1,412	-57%	-$389K	0.01%	487
2024 Q4	$806K	Sell	2,461 -1,665	-40%	-$524K	0.07%	347
2024 Q3	$1.24M	Buy	4,126 +253	+7%	+$77.5K	0.1%	277
2024 Q2	$1.28M	Sell	3,873 -5	-0.1%	-$1.77K	0.11%	270
2024 Q1	$1.53M	Buy	3,878 +1,062	+38%	+$393K	0.12%	272
2023 Q4	$992K	Sell	2,816 -415	-13%	-$147K	0.09%	321
2023 Q3	$1.21M	Sell	3,231 -1,194	-27%	-$462K	0.11%	271
2023 Q2	$1.69M	Sell	4,425 -5	-0.1%	-$1.79K	0.14%	216
2023 Q1	$1.53M	Buy	+4,430	New	+$1.29M	0.13%	222

Other funds holding WST

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Ostrum Asset Management's WST Position: Q2 2026 in Review

Ostrum Asset Management held its West Pharmaceutical (WST) position steady in Q2 2026 at 1,487 shares worth $534K. The position accounts for 0.03% of the portfolio, ranked #316.

Ostrum Asset Management first reported a position in WST in Q1 2023 and has held it in 14 quarters since. The position peaked at $1.69M in Q2 2023. 830 funds tracked by Wall St. Rank hold WST as of Q2 2026.

Ostrum Asset Management held 1,487 shares of West Pharmaceutical worth $534K as of Q2 2026.
Ostrum Asset Management left its West Pharmaceutical share count unchanged in Q2 2026.
West Pharmaceutical made up 0.03% of Ostrum Asset Management's portfolio in Q2 2026, its #316 holding.
Ostrum Asset Management first reported a position in West Pharmaceutical in Q1 2023 and has held it in 14 quarters since.
Ostrum Asset Management's West Pharmaceutical position peaked at $1.69M in Q2 2023.
830 funds tracked by Wall St. Rank held West Pharmaceutical as of Q2 2026.

Based on Ostrum Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.