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West Pharmaceutical
WST

Overview Fund Activity

703 hedge funds and large institutions have $15.4B invested in West Pharmaceutical in 2025 Q1 according to their latest regulatory filings, with 91 funds opening new positions, 267 increasing their positions, 259 reducing their positions, and 112 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
703
Holders Change
-35
Holders Change %
-4.74%
% of All Funds
9.55%
Holding in Top 10
3
Holding in Top 10 Change
-7
Holding in Top 10 Change %
-70%
% of All Funds
0.04%
New
91
Increased
267
Reduced
259
Closed
112
Calls
$98M
Puts
$63M
Net Calls
+$35M
Net Calls Change
+$96.3M

Top Buyers

1
DCP
Durable Capital Partners
Maryland
$352M
2
VanEck Associates
VanEck Associates
New York
$324M
3
Brown Advisory
Brown Advisory
Maryland
$732M
4
Two Sigma Investments
Two Sigma Investments
New York
$117M
5
Gates Foundation Trust
Gates Foundation Trust
Washington
$99.5M

Top Sellers

1
AllianceBernstein
AllianceBernstein
Tennessee
$17.9M
2
Artisan Partners
Artisan Partners
Wisconsin
$492M
3
BlackRock
BlackRock
New York
$1.55B
4
Citadel Advisors
Citadel Advisors
Florida
$62.8M
5
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$34.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
CAM
51
Congress Asset Management
Massachusetts
$56.7M -$8.01M -35,796 -12%
Two Sigma Advisers
52
Two Sigma Advisers
New York
$54.6M +$53.1M +237,200 +3,540%
BNP Paribas Financial Markets
53
BNP Paribas Financial Markets
France
$54.4M +$15M +67,012 +38%
RhumbLine Advisers
54
RhumbLine Advisers
Massachusetts
$53M +$3.97M +17,711 +8%
Assenagon Asset Management
55
Assenagon Asset Management
Luxembourg
$52.6M +$30.4M +135,584 +137%
Raymond James Financial
56
Raymond James Financial
Florida
$52.3M +$2.62M +11,685 +5%
Federated Hermes
57
Federated Hermes
Pennsylvania
$51.9M +$34.5M +154,315 +199%
LGF
58
LGT Group Foundation
Liechtenstein
$49.5M +$25.5M +113,917 +106%
Adage Capital Partners
59
Adage Capital Partners
Massachusetts
$47.3M -$7.07M -31,600 -13%
Swiss National Bank
60
Swiss National Bank
Switzerland
$45.7M -$157K -700 -0.3%
Barclays
61
Barclays
United Kingdom
$43M +$11.4M +51,044 +36%
UBS Group
62
UBS Group
Switzerland
$40.8M +$6.9M +30,798 +20%
Sumitomo Mitsui Trust Group
63
Sumitomo Mitsui Trust Group
Japan
$39.9M -$262K -1,172 -0.7%
Ameriprise
64
Ameriprise
Minnesota
$39.1M +$1.5M +6,692 +4%
AAM
65
AMI Asset Management
California
$38.9M -$1.98M -8,857 -5%
Marshall Wace
66
Marshall Wace
United Kingdom
$37.2M -$13.7M -61,166 -27%
Baird Financial Group
67
Baird Financial Group
Wisconsin
$37.1M +$36.6M +163,502 +7,365%
VF
68
Vest Financial
Virginia
$35.6M -$2.85M -12,727 -7%
T. Rowe Price Associates
69
T. Rowe Price Associates
Maryland
$34.6M -$83M -370,568 -71%
BBHC
70
Brown Brothers Harriman & Co
New York
$33.7M +$12.5M +55,683 +59%
FGP
71
Freestone Grove Partners
California
$32M +$32M +142,976 New
Mitsubishi UFJ Asset Management
72
Mitsubishi UFJ Asset Management
Japan
$32M +$3.18M +14,207 +11%
Bank of Montreal
73
Bank of Montreal
Ontario, Canada
$31.5M -$3.7M -16,543 -11%
WP
74
Woodline Partners
California
$31.1M +$26.7M +119,417 +614%
EAM
75
EULAV Asset Management
Florida
$30.8M -$1.57K -7 -0%
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