West Pharmaceutical Services Inc (WST) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

72,700,000Shares Outstanding

70,614,210Shares held by institutions

$20,654,656,425Value of institutional holdings

97.13%Institutional ownership %

3.05%Shares Changed QoQ

788No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

West Pharmaceutical Services Inc (NYSE:WST) has 786 institutional investors with active 13F positions as of December 2025.

These investors held 96.3% of outstanding shares in December 2025, down from 96.5% in September 2025.
They increased total shares held in West Pharmaceutical Services by 2.79% from the prior quarter, while the number of investors in WST increased 6.5% year over year.
Of these 786 funds, 372 grew their exposure to West Pharmaceutical Services, 289 cut back, and 125 maintained positions.
Institutional investors collectively held 70.02Mn shares in West Pharmaceutical Services as of December 2025, up by 1.9Mn shares quarter on quarter, and down 2.65Mn shares year over year.
As of December 31, 2025, RIVERBRIDGE PARTNERS LLC held the largest stake in West Pharmaceutical Services with 261.44K shares, accounting for 0.36% of total shares outstanding.
Leading buyers of West Pharmaceutical Services shares for the quarter ending December 2025 were Vest Financial, LLC (24.87K), McCollum Christoferson Group LLC (24.52K), North Growth Management Ltd. (23.0K), Ninety One UK Ltd (17.34K), Robeco Institutional Asset Management B.V. (17.2K).
The largest sellers of West Pharmaceutical Services for the quarter ending December 2025 were Annex Advisory Services, LLC (121.44K), Assenagon Asset Management S.A. (113.44K), Pictet Asset Management Holding SA (107.81K), RIVERBRIDGE PARTNERS LLC (57.17K), Seilern Investment Management Ltd (52.21K).
West Pharmaceutical Services's 10 largest shareholders as of December 2025 include RIVERBRIDGE PARTNERS LLC (261.44K), Border to Coast Pensions Partnership Ltd (226.86K), Seilern Investment Management Ltd (226.02K), Vest Financial, LLC (202.95K), AMI ASSET MANAGEMENT CORP (154.4K), Assenagon Asset Management S.A. (137.56K), Conestoga Capital Advisors, LLC (130.97K), Ninety One UK Ltd (119.23K), SG Americas Securities, LLC (114.04K), McCollum Christoferson Group LLC (65.61K) per Business Quant data.

796 Institutional Holders

70,614,210 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	9,539,173	-165,775	-1.71%	$2,624,608,060.00
BlackRock, Inc.	31 Dec, 2025	6,599,735	143,874	2.23%	$1,815,851,080.00
State Street Corp	31 Dec, 2025	3,252,020	44,109	1.38%	$894,760,783.00
Artisan Partners Limited Partnership	31 Dec, 2025	2,850,401	79,481	2.87%	$784,259,419.00
Bank of New York Mellon Corp	31 Dec, 2025	2,662,035	-242,674	-8.35%	$732,432,196.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	1,967,638	1,266,223	180.52%	$541,377.00
BROWN ADVISORY INC	31 Dec, 2025	1,943,606	-554,476	-22.20%	$534,770,720.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,869,086	11,962	0.64%	$512,249,725.00
GENERATION INVESTMENT MANAGEMENT LLP	31 Dec, 2025	1,561,869	585,855	60.03%	$429,732,636.00
Morgan Stanley	31 Dec, 2025	1,531,858	53,229	3.60%	$421,476,429.00
APG Asset Management N.V.	31 Dec, 2025	1,199,005	-214,693	-15.19%	$280,892,533.00
Longview Partners (Guernsey) LTD	31 Dec, 2025	1,131,026	778,887	221.19%	$311,190,494.00
NORGES BANK	31 Dec, 2025	988,737	988,737	0.00%	$272,041,098.00
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	31 Dec, 2025	955,149	-82,945	-7.99%	$262,799,913.00
Invesco Ltd.	31 Dec, 2025	908,625	27,340	3.10%	$249,999,085.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	905,656	20,420	2.31%	$249,182,191.00
Franklin Resources Inc	31 Dec, 2025	888,252	-77,679	-8.04%	$244,393,655.00
Goldman Sachs Group Inc	31 Dec, 2025	880,054	461,977	110.50%	$242,137,785.00
Northern Trust Corp	31 Dec, 2025	726,512	-18,379	-2.47%	$199,892,511.00
VAN ECK ASSOCIATES CORP	31 Dec, 2025	716,087	-708,792	-49.74%	$197,025.00

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