West Pharmaceutical Services Inc

WST

Exchange: NYSE
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0000105770

SEC filings (opens in a new tab)

In the last 90 days, West Pharmaceutical Services Inc insiders filed 0 open-market purchases and 2 sales; 834 institutions reported holding it in 13F filings for Q2 2026, worth $25.2B in total; Gates Foundation Trust is the only superinvestor holding it.

13F holders, Q1 2026

Institutional positions in West Pharmaceutical Services Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 755; −37 vs. Q4 2025
Shares held: 71.1M; +12.2M (+20.8%) vs. Q4 2025
Total value: $17.8B; +$1.62B (+10.0%) vs. Q4 2025
New holders: 89; 265 more added
Sold out: 126; 281 more reduced

12 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting WST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 755 institutions

Value heldQ1 2026: $17.8B

Institutions holding WST and their total value by quarter
Quarter	Holders	Value
Q2 2026	834	$25.2B
Q1 2026	755	$17.8B
Q4 2025	804	$19.1B
Q3 2025	758	$18.0B
Q2 2025	733	$15.3B
Q1 2025	715	$15.6B
Q4 2024	747	$22.9B
Q3 2024	733	$20.5B
Q2 2024	778	$22.4B
Q1 2024	778	$27.0B
Q4 2023	784	$24.1B
Q3 2023	759	$25.8B
Q2 2023	735	$26.0B
Q1 2023	698	$24.0B
Q4 2022	638	$16.3B
Q3 2022	638	$16.9B
Q2 2022	657	$20.6B
Q1 2022	718	$28.2B
Q4 2021	731	$32.2B
Q3 2021	672	$28.5B
Q2 2021	641	$24.7B
Q1 2021	591	$19.3B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding West Pharmaceutical Services Inc; share changes are against Q4 2025.

Institutions holding WST in Q1 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Westfuller Advisors, LLC	10	$2.54K	0.00%	00.0%	Unchanged
Murphy & Mullick Capital Management Corp	10	$2.51K	0.00%	00.0%	Unchanged
North Star Investment Management Corp.	10	$2.51K	0.00%	+10	New
ZRC Wealth Management, LLC	9	$2.26K	0.00%	−8−47.1%	Reduced
Raffa Wealth Management, LLC	9	$2.26K	0.00%	00.0%	Unchanged
Raleigh Capital Management Inc.	9	$2.26K	0.00%	+9	New
Purpose Unlimited Inc.	8	$2.01K	0.00%	+8	New
Sachetta, LLC	8	$2.01K	0.00%	−14−63.6%	Reduced
JPL Wealth Management, LLC	8	$2.01K	0.00%	+8	New
Financial Management Professionals, Inc.	8	$2.00K	0.00%	00.0%	Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP	7	$1.80K	0.00%	+7	New
Prestige Wealth Management Group LLC	7	$1.75K	0.00%	−2−22.2%	Reduced
DiNuzzo Private Wealth, Inc.	7	$1.75K	0.00%	+1+16.7%	Added
Hughes Financial Services, LLC	7	$1.75K	0.00%	+3+75.0%	Added
RMG Wealth Management LLC	5	$1.61K	0.00%	00.0%	Unchanged
SHP Wealth Management	6	$1.50K	0.00%	+6	New
St Germain D J Co Inc	6	$1.50K	0.00%	00.0%	Unchanged
Signature Resources Capital Management, LLC	6	$1.50K	0.00%	00.0%	Unchanged
Private Wealth Management Group, LLC	6	$1.50K	0.00%	00.0%	Unchanged
Proathlete Wealth Management LLC	6	$1.50K	0.00%	00.0%	Unchanged
Rialto Wealth Management, LLC	5	$1.25K	0.00%	+2+66.7%	Added
Bare Financial Services, Inc	5	$1.25K	0.00%	+2+66.7%	Added
NBT Bank N A	5	$1.25K	0.00%	+5	New
Thurston, Springer, Miller, Herd & Titak, Inc.	5	$1.25K	0.00%	00.0%	Unchanged
Geneos Wealth Management Inc.	4	$1.00K	0.00%	−176−97.8%	Reduced
Westside Investment Management, Inc.	4	$1.00K	0.00%	00.0%	Unchanged
Bogart Wealth, LLC	4	$1.00K	0.00%	00.0%	Unchanged
DecisionPoint Financial, LLC	4	$1.00K	0.00%	00.0%	Unchanged
Vermillion Wealth Management, Inc.	4	$1.00K	0.00%	+4	New
Clark Wealth Partners	4	$1.00K	0.00%	+4	New
Avion Wealth	7	$1.00K	0.00%	−4−36.4%	Reduced
TFC Financial Management	3	$752	0.00%	00.0%	Unchanged
WestEnd Advisors, LLC	3	$752	0.00%	00.0%	Unchanged
HFM Investment Advisors, LLC	3	$752	0.00%	+1+50.0%	Added
Wall Street Financial Group, Inc.	3	$752	0.00%	+3	New
American Capital Advisory, LLC	2	$502	0.00%	00.0%	Unchanged
Dogwood Wealth Management LLC	2	$501	0.00%	−3−60.0%	Reduced
Principia Wealth Advisory, LLC	2	$501	0.00%	−2−50.0%	Reduced
NVWM, LLC	2	$501	0.00%	−1−33.3%	Reduced
Grove Bank & Trust	2	$501	0.00%	00.0%	Unchanged
Aspect Partners, LLC	2	$501	0.00%	00.0%	Unchanged
Bruce G. Allen Investments, LLC	2	$501	0.00%	00.0%	Unchanged
1015 Capital Partners, LLC	2	$501	0.00%	00.0%	Unchanged
Dunhill Financial, LLC	1	$338	0.00%	−1−50.0%	Reduced
Sound Income Strategies, LLC	1	$253	0.00%	00.0%	Unchanged
Quaker Wealth Management, LLC	1	$251	0.00%	−1−50.0%	Reduced
Seneschal Advisors, LLC	1	$251	0.00%	00.0%	Unchanged
Davis Capital Management	1	$251	0.00%	00.0%	Unchanged
Atlantic Union Bankshares Corp	1	$251	0.00%	+1	New
Cassaday & Co Wealth Management LLC	1	$251	0.00%	+1	New
Rakuten Securities, Inc.	1	$251	0.00%	+1	New
Tidemark, LLC	1	$251	0.00%	+1	New
Curio Wealth, LLC	1	$251	0.00%	+1	New
Portus Wealth Advisors, LLC	1	$251	0.00%	+1	New
Penserra Capital Management LLC	3	$0	0.00%	−3−50.0%	Reduced
Steadfast Capital Management LP	0	$0	0.00%	−429,907−100.0%	Sold out
Walleye Capital LLC	0	$0	0.00%	−134,453−100.0%	Sold out
HRT Financial LP	0	$0	0.00%	−127,188−100.0%	Sold out
EULAV Asset Management	0	$0	0.00%	−104,616−100.0%	Sold out
Moore Capital Management, LP	0	$0	0.00%	−95,000−100.0%	Sold out
Polar Capital Holdings Plc	0	$0	0.00%	−69,332−100.0%	Sold out
Jennison Associates LLC	0	$0	0.00%	−54,593−100.0%	Sold out
Janney Montgomery Scott LLC	0	$0	0.00%	−45,159−100.0%	Sold out
Trexquant Investment LP	0	$0	0.00%	−43,355−100.0%	Sold out
Hudson Bay Capital Management LP	0	$0	0.00%	−35,448−100.0%	Sold out
Fideuram - Intesa Sanpaolo Private Banking S.P.A.	0	$0	0.00%	−34,752−100.0%	Sold out
Parnassus Investments	0	$0	0.00%	−34,387−100.0%	Sold out
Dai-Ichi Life Insurance Company, Ltd	0	$0	0.00%	−29,599−100.0%	Sold out
Brasada Capital Management, LP	0	$0	0.00%	−26,997−100.0%	Sold out
Verition Fund Management LLC	0	$0	0.00%	−26,928−100.0%	Sold out
Jump Financial, LLC	0	$0	0.00%	−22,568−100.0%	Sold out
Dark Forest Capital Management LP	0	$0	0.00%	−20,131−100.0%	Sold out
Campbell & CO Investment Adviser LLC	0	$0	0.00%	−18,597−100.0%	Sold out
Cramer Rosenthal McGlynn LLC	0	$0	0.00%	−18,387−100.0%	Sold out
Aquatic Capital Management LLC	0	$0	0.00%	−15,314−100.0%	Sold out
ING Groep NV	0	$0	0.00%	−14,853−100.0%	Sold out
Syntegra Private Wealth Group, LLC	0	$0	0.00%	−14,756−100.0%	Sold out
SummitTX Capital, L.P.	0	$0	0.00%	−14,621−100.0%	Sold out
Brendel Financial Advisors LLC	0	$0	0.00%	−13,599−100.0%	Sold out
Skandinaviska Enskilda Banken AB (publ)	0	$0	0.00%	−13,232−100.0%	Sold out
Quantbot Technologies LP	0	$0	0.00%	−12,024−100.0%	Sold out
Magnetar Financial LLC	0	$0	0.00%	−11,918−100.0%	Sold out
Clear Harbor Asset Management, LLC	0	$0	0.00%	−11,897−100.0%	Sold out
Y-Intercept (Hong Kong) Ltd	0	$0	0.00%	−10,667−100.0%	Sold out
Elo Mutual Pension Insurance Co	0	$0	0.00%	−10,578−100.0%	Sold out
Park Avenue Securities LLC	0	$0	0.00%	−9,724−100.0%	Sold out
Brevan Howard Capital Management LP	0	$0	0.00%	−9,108−100.0%	Sold out
Rhenman & Partners Asset Management AB	0	$0	0.00%	−7,000−100.0%	Sold out
Virtus Investment Advisers, Inc.	0	$0	0.00%	−6,728−100.0%	Sold out
Radnor Capital Management, LLC	0	$0	0.00%	−6,000−100.0%	Sold out
Graham Capital Management, L.P.	0	$0	0.00%	−5,347−100.0%	Sold out
CAPROCK Group, Inc.	0	$0	0.00%	−5,078−100.0%	Sold out
Two Sigma Advisers, LP	0	$0	0.00%	−4,640−100.0%	Sold out
Kentucky Retirement Systems	0	$0	0.00%	−4,494−100.0%	Sold out
Sciencast Management LP	0	$0	0.00%	−4,421−100.0%	Sold out
Schonfeld Strategic Advisors LLC	0	$0	0.00%	−3,513−100.0%	Sold out
Harvest Fund Management Co., Ltd	0	$0	0.00%	−2,705−100.0%	Sold out
Everence Capital Management Inc	0	$0	0.00%	−2,525−100.0%	Sold out
R Squared Ltd	0	$0	0.00%	−2,417−100.0%	Sold out
Polymer Capital Management (US) LLC	0	$0	0.00%	−2,259−100.0%	Sold out