West Pharmaceutical Services WST Institutional Ownership

NYSE WST

$337.09 -0.66 (-0.20%)

As of: Sep 9, 2026 · 3:59 PM EDT

Institutions by Trading Activity

831 Institutions

Increased 448 53.9%

Unchanged 124 14.9%

Reduced 259 31.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

100.64%

▲+1.85 pp QoQ

Shares Held by Institutions

71.25Mn

of 70.80Mn outstanding

▲+1.72% QoQ

Shares Outstanding

70.80Mn

-451.26K held outside 13F filers

Institutional Investors

831

filed 13F for Jun 2026

▲+79 vs prior quarter

Net Shares Added (QoQ)

+1.21Mn

accumulated since last quarter

Value of Holdings

$24.22Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

West Pharmaceutical Services Inc (NYSE:WST) has 831 institutional investors with active 13F positions as of June 2026.

These investors held 100.6% of outstanding shares in June 2026, up from 98.8% in March 2026.
They increased total shares held in West Pharmaceutical Services by 1.72% from the prior quarter, while the number of investors in WST increased 13.37% year over year.
During the quarter, 448 of these 831 funds increased positions in WST, 259 reduced exposure, and 124 held steady.
Combined, these investors held 71.25Mn shares in WST for June 2026, up by 1.21Mn shares quarter on quarter, and up 834.13K shares year over year.
BlackRock, Inc. is the top holder of West Pharmaceutical Services as of June 30, 2026, with 6.65Mn shares representing 9.4% of outstanding stock.
Leading buyers of West Pharmaceutical Services shares for the quarter ending June 2026 were FMR LLC (2.33Mn), NORGES BANK (862.92K), Sixth Street Partners Management Company, L.P. (583.98K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (377.58K), Ascentis Wealth Management, LLC (219.7K).
Top sellers of WST stock for the quarter ending June 2026 included APG Asset Management N.V. (706.7K), T. Rowe Price Investment Management, Inc. (535.38K), Bank of New York Mellon Corp (422.04K), AMERICAN CENTURY COMPANIES INC (300.14K), Longview Partners (Guernsey) LTD (281.58K).
According to Business Quant data, leading holders of WST for June 2026 are BlackRock, Inc. (6.65Mn), VANGUARD CAPITAL MANAGEMENT LLC (4.61Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (4.02Mn), FMR LLC (3.57Mn), State Street Corp (3.35Mn), Artisan Partners Limited Partnership (2.41Mn), Bank of New York Mellon Corp (2.04Mn), GENERATION INVESTMENT MANAGEMENT LLP (2.03Mn), GEODE CAPITAL MANAGEMENT, LLC (1.9Mn), T. Rowe Price Investment Management, Inc. (1.81Mn).

Form 13F Holdings

831 Institutional Holders

Report period 30 Jun, 2026

Total shares held 71.25Mn

Of outstanding 100.64%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,651,784	9.40%	▼184,930	-2.70%	$2.39Bn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	4,613,134	6.52%	▼70,152	-1.50%	$1.66Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	4,015,766	5.67%	▼78,243	-1.91%	$1.44Bn
4	FMR LLC	0000315066	3,574,816	5.05%	▲2,325,068	+186.04%	$1.28Bn
5	State Street Corp	0000093751	3,348,698	4.73%	▲54,920	+1.67%	$1.20Bn
6	Artisan Partners Limited Partnership	0001466153	2,411,792	3.41%	▼246,101	-9.26%	$865.83Mn
7	Bank of New York Mellon Corp	0001390777	2,043,823	2.89%	▼422,035	-17.12%	$733.73Mn
8	GENERATION INVESTMENT MANAGEMENT LLP	0001375534	2,028,322	2.86%	▼215,654	-9.61%	$728.17Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,903,279	2.69%	▼9,176	-0.48%	$680.55Mn
10	T. Rowe Price Investment Management, Inc.	0001897612	1,805,019	2.55%	▼535,384	-22.88%	$648.00K
11	Morgan Stanley	0000895421	1,582,546	2.24%	▲124,264	+8.52%	$568.14Mn
12	Jpmorgan Chase & Co	0000019617	1,164,527	1.64%	▲121,110	+11.61%	$413.03Mn
13	BROWN ADVISORY INC	0001345929	1,075,309	1.52%	▼265,568	-19.81%	$386.04Mn
14	Longview Partners (Guernsey) LTD	0001426092	1,033,826	1.46%	▼281,577	-21.41%	$371.14Mn
15	Invesco Ltd.	0000914208	1,009,852	1.43%	▼46,155	-4.37%	$362.54Mn
16	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0000861177	884,865	1.25%	▼17,899	-1.98%	$317.67Mn
17	NORGES BANK	0001374170	862,915	1.22%	▲862,915	0.00%	$309.79Mn
18	Goldman Sachs Group Inc	0000886982	814,772	1.15%	▲87,155	+11.98%	$292.50Mn
19	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	0001021223	760,622	1.07%	▼97,676	-11.38%	$273.06Mn
20	TD ASSET MANAGEMENT INC	0001056053	731,054	1.03%	▼37,899	-4.93%	$262.45Mn

Showing 1 to 20 of 831 holders