Aigen Investment Management’s West Pharmaceutical WST Stock Holding History

Aigen Investment 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	–	Sell	-3,060	Closed	-$767K	–	823
2026 Q1	$767K	Buy	+3,060	New	+$761K	0.2%	140
2025 Q3	–	Sell	-2,686	Closed	-$588K	–	1123
2025 Q2	$588K	Buy	+2,686	New	+$574K	0.08%	361
2024 Q3	–	Sell	-1,609	Closed	-$530K	–	1054
2024 Q2	$530K	Buy	+1,609	New	+$569K	0.1%	290
2023 Q1	–	Sell	-5,207	Closed	-$1.23M	–	850
2022 Q4	$1.23M	Buy	+5,207	New	+$1.23M	0.17%	151
2022 Q3	–	Sell	-1,004	Closed	-$304K	–	792
2022 Q2	$304K	Buy	+1,004	New	+$327K	0.05%	392
2021 Q2	–	Sell	-12,712	Closed	-$3.58M	–	763
2021 Q1	$3.58M	Sell	12,712 -7,154	-36%	-$2.05M	0.47%	53
2020 Q4	$5.63M	Buy	+19,866	New	+$5.57M	0.73%	12

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

Aigen Investment Management's WST Position: Q2 2026 in Review

Aigen Investment Management sold out of West Pharmaceutical (WST) in Q2 2026, closing a stake of 3,060 shares — an estimated $767K sold.

Aigen Investment Management first reported a position in WST in Q4 2020 and held it in 7 quarters. The position peaked at $5.63M in Q4 2020. 832 funds tracked by Wall St. Rank hold WST as of Q2 2026.

Aigen Investment Management reported no remaining West Pharmaceutical position as of Q2 2026 after selling out during the quarter.
Aigen Investment Management sold 3,060 West Pharmaceutical shares in Q2 2026, an estimated $767K.
Aigen Investment Management first reported a position in West Pharmaceutical in Q4 2020 and held it in 7 quarters.
Aigen Investment Management's West Pharmaceutical position peaked at $5.63M in Q4 2020.
832 funds tracked by Wall St. Rank held West Pharmaceutical as of Q2 2026.

Based on Aigen Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.