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Artisan Partners Limited Partnership

Position in WST — West Pharmaceutical Services Inc

CIK 1466153 Milwaukee, WI

Position in WST

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$666,174,301
-$118,085,030 QoQ
Shares Held
2,657,893
-6.8% QoQ
Ownership
3.76%
of shares outstanding
% of Portfolio
1.10%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 93.98689112014668.ToString("F0")% Shared 0.ToString("F0")% None 6.013108879853327.ToString("F0")%

Common Shares in WST Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Mar 31, 2026

Artisan Partners Limited Partnership holds $1,199,224,402 across 8 Medical Instruments & Supplies names. WST ranks #1 (55.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 WST
West Pharmaceutical Services Inc
This page
2,657,893 $666,174,301

All Filings in WST

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $666,174,301 2,657,893
2025-12-31 $784,259,331 2,850,401
2025-09-30 $726,895,443 2,770,920
2025-06-30 $496,089,397 2,267,319
2025-03-31 $491,524,734 2,195,483
2024-12-31 $1,019,007,386 3,110,903
2024-09-30 $920,448,744 3,066,527
2024-06-30 $820,804,305 2,491,892
2024-03-31 $817,749,356 2,066,537
2023-12-31 $690,529,503 1,961,063
2023-09-30 $597,060,791 1,591,271
2023-06-30 $387,241,313 1,012,475
2023-03-31 $403,536,727 1,164,709
2022-12-31 $249,660,221 1,060,804
2022-09-30 $225,345,053 915,739
2022-06-30 $257,996,597 853,248
2022-03-31 $223,713,326 544,699
2021-12-31 $357,945,617 763,194
2021-09-30 $339,363,690 799,368
2021-06-30 $355,937,765 991,194
2021-03-31 $352,281,074 1,250,199
2020-12-31 $368,596,225 1,301,035
2020-09-30 $373,257,845 1,357,795
2020-06-30 $308,267,191 1,356,989
2020-03-31 $182,782,976 1,200,545