Stock Ownership/WST

WEST PHARMACEUTICAL SVSC INC (WST): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in WST · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
30
13F filers
Aggregate Value
$861.3M
Across holders
Last Price
$353.32
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity17 increased12 reduced3 exited
Full exits: Qube Research & Technologies Ltd, VIKING GLOBAL INVESTORS LP, Ancora Advisors, LLC
Institutional Holders of WST
↗
30 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BILL & MELINDA GATES FOUNDATION TRUST
CIK 0001166559
Endowment445K$159.6M18.5%0.5%Unchanged+$0Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund439K$157.5M18.3%0.1%Reduced$-25.8MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund353K$126.6M14.7%0.0%Added+$122.5MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund283K$101.7M11.8%0.1%Added$-37.2MQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund275K$98.9M11.5%0.2%Added+$25.8MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund84K$30.0M3.5%0.0%Added+$28.9MQ2 2026
ORBIMED ADVISORS LLC
CIK 0001055951
Hedge Fund71K$25.3M2.9%0.5%Added—Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund59K$21.2M2.5%0.0%Reduced$-1.9MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund58K$20.3M2.4%0.0%Reduced+$19.4MQ2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund46K$16.4M1.9%0.0%Added+$16.0MQ2 2026
BILL & MELINDA GATES FOUNDATION TRUSTUnchanged
Endowment
$159.6M· 18.5% of total· 0.5% port· 445K sh· +$0 QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$157.5M· 18.3% of total· 0.1% port· 439K sh· $-25.8M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$126.6M· 14.7% of total· 0.0% port· 353K sh· +$122.5M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$101.7M· 11.8% of total· 0.1% port· 283K sh· $-37.2M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$98.9M· 11.5% of total· 0.2% port· 275K sh· +$25.8M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$30.0M· 3.5% of total· 0.0% port· 84K sh· +$28.9M QoQ· Q2 2026
ORBIMED ADVISORS LLCAdded
Hedge Fund
$25.3M· 2.9% of total· 0.5% port· 71K sh· — QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced
Hedge Fund
$21.2M· 2.5% of total· 0.0% port· 59K sh· $-1.9M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$20.3M· 2.4% of total· 0.0% port· 58K sh· +$19.4M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$16.4M· 1.9% of total· 0.0% port· 46K sh· +$16.0M QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCAdded
Hedge Fund
$14.2M· 1.6% of total· 0.0% port· 39K sh· +$1.3M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$12.4M· 1.4% of total· 0.0% port· 35K sh· $-11.1M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$11.1M· 1.3% of total· 0.0% port· 31K sh· $-64.2M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$11.1M· 1.3% of total· 0.1% port· 31K sh· — QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALReduced
Hedge Fund
$8.6M· 1.0% of total· 0.0% port· 24K sh· $-14.9M QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$7.7M· 0.9% of total· 0.0% port· 22K sh· — QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$7.6M· 0.9% of total· 0.0% port· 21K sh· +$2.7M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$6.5M· 0.8% of total· 0.0% port· 18K sh· $-74.5M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$5.6M· 0.6% of total· 0.0% port· 15K sh· +$4.6M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$4.6M· 0.5% of total· 0.0% port· 13K sh· $-399K QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$4.3M· 0.5% of total· 0.0% port· 12K sh· +$1.8M QoQ· Q2 2026
Bridgewater Associates, LPReduced
Hedge Fund
$3.7M· 0.4% of total· 0.0% port· 10K sh· $-4.6M QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCAdded
Institutional Manager
$2.0M· 0.2% of total· 0.0% port· 6K sh· — QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$1.4M· 0.2% of total· 0.0% port· 4K sh· +$865K QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$1.2M· 0.1% of total· 0.0% port· 3K sh· $-7.3M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$502K· 0.1% of total· 0.0% port· 1K sh· $-2.1M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$427K· 0.0% of total· 0.0% port· 1K sh· +$359 QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$374K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$238K· 0.0% of total· 0.0% port· 661 sh· $-6.5M QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$11K· 0.0% of total· 0.0% port· 32 sh· — QoQ· Q2 2026
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