$WST

$394.73 +$2.58 (0.66%) Close

$WST Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 70.4M shares outstanding

Who owns WST?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 46.0%

BlackRock, Inc. 9.5% · Vanguard Capital Management LLC 6.6%

Institutional ownership

100.0%

-0.0 pts vs last qtr

Institutional holders

833

+77 vs last qtr

Net shares bought

−745.9K

by institutions in Q2 2026

New / sold out

149 / 72

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +2.3M
Norges Bank NEW +862.9K

Biggest sellers in Q2 2026

APG Asset Management N.V. −706.7K
T. Rowe Price Investment Management, Inc. −535.4K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.09M

1 notice from 1 person

Shares covered

3.4K

0.00% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Hofmann Thomas W Director $1.09M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−3.1%

−0.35% a year

Each share's claim on the business

+3.2%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$1.87B vs $236M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years77% 3–5 years5% 1–3 years10% Under 1 year8%

Quarterly turnover

11.2%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting WST on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	6.7M	9.45%	−184.9K (−2.7%)	≤2021	0.0%
Shares held by quarter Peak holding7.5M (Q4'24) Change over 8 quarters−625.5K Share of the company9.450% BlackRock, Inc.'s full portfolio →
VC Vanguard Capital Management LLC	4.6M	6.56%	−70.2K (−1.5%)	≤2021	0.0%
Shares held by quarter Peak holding4.7M (Q1'26) Change over 8 quarters+4.6M Share of the company6.560% Vanguard Capital Management LLC's full portfolio →

BlackRock, Inc.

6.7M

% of company

9.45%

Change vs last qtr

−184.9K (−2.7%)

Held since

≤2021

Vanguard Capital Management LLC

4.6M

% of company

6.56%

Change vs last qtr

−70.2K (−1.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding West Pharmaceutical Services, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting WST on Form N-PORT; together they hold 42.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$805M	2.2M	3.19%	0.04%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$657M	1.8M	2.60%	0.04%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$805M

% of company

3.19%

% of the fund

0.04%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$657M

% of company

2.60%

% of the fund

0.04%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding West Pharmaceutical Services, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
GE Green Eric Mark Insider	175.4K	0.25%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.250% Green Eric Mark's insider activity →
MD Michels Douglas A Insider	46.5K	0.07%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.070% Michels Douglas A's insider activity →

Green Eric Mark

Insider

175.4K

% of company

0.25%

Change vs last qtr

—

Held since

—

Michels Douglas A

Insider

46.5K

% of company

0.07%

Change vs last qtr

—

Held since

—

21 more holders behind a free account

See every insider and 5%+ holder of West Pharmaceutical Services, Inc..

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