PDT Partners’s West Pharmaceutical WST Stock Holding History

PDT 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
2026 Q2	$3.35M	Buy	+9,332	New	+$2.85M	0.18%	181
2023 Q4	–	Sell	-3,378	Closed	-$1.27M	–	688
2023 Q3	$1.27M	Buy	3,378 +586	+21%	+$227K	0.16%	215
2023 Q2	$1.07M	Sell	2,792 -3,186	-53%	-$1.14M	0.15%	237
2023 Q1	$2.07M	Buy	5,978 +1,598	+36%	+$467K	0.28%	115
2022 Q4	$1.03M	Sell	4,380 -1	-0%	-$237	0.17%	212
2022 Q3	$1.08M	Sell	4,381 -9,118	-68%	-$2.78M	0.16%	199
2022 Q2	$4.08M	Buy	13,499 +2,599	+24%	+$846K	0.36%	40
2022 Q1	$4.48M	Hold	10,900	–	–	0.39%	40
2021 Q4	$5.11M	Sell	10,900 -502	-4%	-$216K	0.39%	43
2021 Q3	$4.84M	Buy	+11,402	New	+$4.81M	0.35%	79
2015 Q4	–	Sell	-7,481	Closed	-$405K	–	974
2015 Q3	$405K	Buy	+7,481	New	+$436K	0.01%	967
2014 Q3	–	Sell	-9,604	Closed	-$405K	–	1618
2014 Q2	$405K	Sell	9,604 -593	-6%	-$25.4K	0.01%	1091
2014 Q1	$449K	Sell	10,197 -11,494	-53%	-$541K	0.01%	996
2013 Q4	$1.06M	Sell	21,691 -1,837	-8%	-$86K	0.13%	227
2013 Q3	$968K	Buy	+23,528	New	+$898K	0.03%	786

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

PDT Partners's WST Position: Q2 2026 in Review

PDT Partners opened a new position in West Pharmaceutical (WST) in Q2 2026: 9,332 shares worth $3.35M. The stake represents 0.18% of the portfolio and ranks #181 among its holdings. This is a return to the name: PDT Partners previously reported a position in WST as recently as Q3 2023.

PDT Partners first reported a position in WST in Q3 2013 and has held it in 15 quarters since. The position peaked at $5.11M in Q4 2021. 831 funds tracked by Wall St. Rank hold WST as of Q2 2026.

PDT Partners held 9,332 shares of West Pharmaceutical worth $3.35M as of Q2 2026.
West Pharmaceutical was a new PDT Partners position in Q2 2026.
West Pharmaceutical made up 0.18% of PDT Partners's portfolio in Q2 2026, its #181 holding.
PDT Partners first reported a position in West Pharmaceutical in Q3 2013 and has held it in 15 quarters since.
PDT Partners's West Pharmaceutical position peaked at $5.11M in Q4 2021.
831 funds tracked by Wall St. Rank held West Pharmaceutical as of Q2 2026.

Based on PDT Partners's 13F filing for Q2 2026, filed 14 Aug 2026.