Dark Forest Capital Management’s West Pharmaceutical WST Stock Holding History

Dark Forest Capital 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 Q1	–	Sell	-20,131	Closed	-$5.54M	–	1183
2025 Q4	$5.54M	Buy	20,131 +19,028	+1,725%	+$5.2M	0.25%	77
2025 Q3	$289K	Buy	+1,103	New	+$268K	0.01%	1036
2025 Q2	–	Sell	-2,950	Closed	-$660K	–	1546
2025 Q1	$660K	Buy	+2,950	New	+$813K	0.03%	844
2024 Q4	–	Sell	-788	Closed	-$237K	–	1315
2024 Q3	$237K	Buy	+788	New	+$241K	0.03%	788
2023 Q2	–	Sell	-19	Closed	-$6.58K	–	1439
2023 Q1	$6.58K	Buy	+19	New	+$5.55K	﹤0.01%	1059
2022 Q4	–	Sell	-66	Closed	-$16K	–	1523
2022 Q3	$16K	Buy	+66	New	+$20.1K	﹤0.01%	658
2022 Q1	–	Sell	-135	Closed	-$63K	–	1813
2021 Q4	$63K	Buy	+135	New	+$58.1K	0.02%	420
2021 Q3	–	Sell	-831	Closed	-$298K	–	1582
2021 Q2	$298K	Buy	+831	New	+$275K	0.13%	94

Other funds holding WST

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Dark Forest Capital Management's WST Position: Q1 2026 in Review

Dark Forest Capital Management sold out of West Pharmaceutical (WST) in Q1 2026, closing a stake of 20,131 shares — an estimated $5.54M sold.

Dark Forest Capital Management first reported a position in WST in Q2 2021 and held it in 8 quarters. The position peaked at $5.54M in Q4 2025. 753 funds tracked by Wall St. Rank hold WST as of Q1 2026.

Dark Forest Capital Management reported no remaining West Pharmaceutical position as of Q1 2026 after selling out during the quarter.
Dark Forest Capital Management sold 20,131 West Pharmaceutical shares in Q1 2026, an estimated $5.54M.
Dark Forest Capital Management first reported a position in West Pharmaceutical in Q2 2021 and held it in 8 quarters.
Dark Forest Capital Management's West Pharmaceutical position peaked at $5.54M in Q4 2025.
753 funds tracked by Wall St. Rank held West Pharmaceutical as of Q1 2026.

Based on Dark Forest Capital Management's 13F filing for Q1 2026, filed 15 May 2026.