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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 %
Charles Schwab
26
Charles Schwab
California
$110M +$5.31M +23,707 +5%
CIP
27
Champlain Investment Partners
Vermont
$105M +$5.93M +26,505 +6%
T. Rowe Price Investment Management
28
T. Rowe Price Investment Management
Maryland
$103M -$60.7M -271,189 -37%
LIP
29
Liontrust Investment Partners
United Kingdom
$100M +$35.4M +157,954 +55%
Gates Foundation Trust
30
Gates Foundation Trust
Washington
$99.5M +$99.5M +444,500 New
SIM
31
Seilern Investment Management
United Kingdom
$98.8M -$553K -2,468 -0.6%
DDC
32
DF Dent & Co
Maryland
$98.3M +$9.45M +42,202 +11%
TD Asset Management
33
TD Asset Management
Ontario, Canada
$98.1M +$5.68M +25,372 +6%
Neuberger Berman Group
34
Neuberger Berman Group
New York
$97M +$11.7M +52,370 +14%
SEI Investments
35
SEI Investments
Pennsylvania
$96.4M -$17.8M -79,719 -16%
BAMCO Inc
36
BAMCO Inc
New York
$93.2M -$4.02M -17,973 -4%
RP
37
Riverbridge Partners
Minnesota
$91.4M -$6.02M -26,887 -6%
Capital Research Global Investors
38
Capital Research Global Investors
California
$87.5M +$37.5M +167,468 +75%
Envestnet Asset Management
39
Envestnet Asset Management
Illinois
$87M +$17.7M +79,089 +26%
State Farm Mutual Automobile Insurance
40
State Farm Mutual Automobile Insurance
Illinois
$86.9M – – –
American Century Companies
41
American Century Companies
Missouri
$82.9M +$25.3M +113,065 +44%
NL
42
Nuveen LLC
North Carolina
$79.3M +$79.3M +354,005 New
William Blair Investment Management
43
William Blair Investment Management
Illinois
$79M -$64.5M -287,897 -45%
EIP
44
Epoch Investment Partners
New York
$73.8M +$12.8M +57,268 +21%
Dimensional Fund Advisors
45
Dimensional Fund Advisors
Texas
$71.5M +$9.95M +44,445 +16%
Millennium Management
46
Millennium Management
New York
$68.1M +$19M +84,786 +39%
Deutsche Bank
47
Deutsche Bank
Germany
$67.9M +$9.52M +42,536 +16%
Citadel Advisors
48
Citadel Advisors
Florida
$62.8M -$87.3M -390,151 -58%
Amundi
49
Amundi
France
$60.3M -$12.7M -57,646 -17%
WorldQuant Millennium Advisors
50
WorldQuant Millennium Advisors
New York
$60.1M +$60.1M +268,271 New
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