West Pharmaceutical Services Inc
WST- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0000105770
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.
| 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.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| USS Investment Management Ltd | 19,207 | $4.82M | 0.02% | +721+3.9% | Added |
| ICICI Prudential Asset Management Co Ltd | 19,118 | $4.79M | 0.58% | 00.0% | Unchanged |
| M&T Bank Corp | 18,997 | $4.76M | 0.02% | −1,458−7.1% | Reduced |
| Fisher Asset Management, LLC | 18,638 | $4.67M | 0.00% | +62+0.3% | Added |
| Apella Capital, LLC | 16,838 | $4.61M | 0.07% | +70.0% | Added |
| Illinois Municipal Retirement Fund | 18,100 | $4.54M | 0.06% | −2,363−11.5% | Reduced |
| Motley Fool Asset Management LLC | 18,074 | $4.53M | 0.19% | −1,092−5.7% | Reduced |
| Daiwa Securities Group Inc. | 17,823 | $4.47M | 0.01% | +1,295+7.8% | Added |
| Mediolanum International Funds Ltd | 18,117 | $4.44M | 0.05% | +11,879+190.4% | Added |
| Natixis | 17,576 | $4.41M | 0.02% | −11,082−38.7% | Reduced |
| CIBC Asset Management Inc | 17,222 | $4.32M | 0.01% | +266+1.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,094 | $4.28M | 0.01% | −6,825−28.5% | Reduced |
| Hilton Capital Management, LLC | 17,043 | $4.27M | 0.32% | +6,776+66.0% | Added |
| MetLife Investment Management | 16,802 | $4.21M | 0.02% | −439−2.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 16,759 | $4.20M | 0.02% | +25+0.1% | Added |
| Sterling Capital Management LLC | 16,564 | $4.15M | 0.08% | −1,984−10.7% | Reduced |
| Retirement Systems of Alabama | 15,278 | $3.83M | 0.01% | −26−0.2% | Reduced |
| Tobam | 15,074 | $3.78M | 0.98% | −921−5.8% | Reduced |
| Jefferies Financial Group Inc. | 14,875 | $3.73M | 0.05% | −15,001−50.2% | Reduced |
| DnB Asset Management AS | 14,828 | $3.72M | 0.01% | +381+2.6% | Added |
| Ilmarinen Mutual Pension Insurance Co | 14,716 | $3.69M | 0.03% | +3,716+33.8% | Added |
| Quantitative Investment Management, LLC | 14,528 | $3.64M | 0.38% | +10,928+303.6% | Added |
| Landscape Capital Management, L.L.C. | 14,429 | $3.62M | 0.23% | +7,998+124.4% | Added |
| Voya Investment Management LLC | 14,183 | $3.55M | 0.00% | −32−0.2% | Reduced |
| Meiji Yasuda Asset Management Co Ltd. | 14,001 | $3.51M | 0.18% | +3,006+27.3% | Added |
| D. E. Shaw & Co., Inc. | 14,001 | $3.51M | 0.00% | +14,001 | New |
| Millennium Management LLC | 13,775 | $3.45M | 0.00% | −96,618−87.5% | Reduced |
| IFM Investors Pty Ltd | 13,773 | $3.45M | 0.03% | +43+0.3% | Added |
| Kornitzer Capital Management Inc | 13,668 | $3.43M | 0.07% | +13,668 | New |
| William Allan, LLC | 13,526 | $3.39M | 2.01% | +363+2.8% | Added |
| SEB Asset Management AB | 13,478 | $3.38M | 0.01% | +13,478 | New |
| Prudential PLC | 13,413 | $3.36M | 0.03% | −2,185−14.0% | Reduced |
| Motley Fool Wealth Management, LLC | 13,322 | $3.34M | 0.38% | −6,155−31.6% | Reduced |
| Endowment Wealth Management, Inc. | 13,231 | $3.32M | 1.47% | +12+0.1% | Added |
| Amalgamated Bank | 13,077 | $3.28M | 0.03% | −523−3.8% | Reduced |
| Employees Retirement System of Texas | 12,966 | $3.25M | 0.03% | 00.0% | Unchanged |
| Omers Administration Corp | 12,769 | $3.20M | 0.02% | +2,442+23.6% | Added |
| Eurizon Capital SGR S.p.A. | 12,627 | $3.16M | 0.01% | +12,627 | New |
| Summit Financial, LLC | 12,601 | $3.16M | 0.04% | +48+0.4% | Added |
| Xponance, Inc. | 12,543 | $3.14M | 0.02% | +1,641+15.1% | Added |
| CWM Advisors, LLC | 12,486 | $3.13M | 0.18% | +3,736+42.7% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 12,460 | $3.12M | 0.03% | −1,820−12.7% | Reduced |
| Mariner, LLC | 12,434 | $3.12M | 0.00% | −10,181−45.0% | Reduced |
| Cerity Partners LLC | 12,292 | $3.08M | 0.00% | −4,993−28.9% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 11,692 | $2.98M | 0.01% | −9,788−45.6% | Reduced |
| Franklin Resources Inc | 11,656 | $2.92M | 0.00% | −876,596−98.7% | Reduced |
| Public Sector Pension Investment Board | 11,654 | $2.92M | 0.01% | +2,254+24.0% | Added |
| Utah Retirement Systems | 11,620 | $2.91M | 0.03% | −193−1.6% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 10,966 | $2.75M | 0.02% | 00.0% | Unchanged |
| New York Life Investment Management LLC | 10,672 | $2.67M | 0.02% | +267+2.6% | Added |
| Assetmark, Inc | 10,599 | $2.66M | 0.01% | −2,394−18.4% | Reduced |
| Rakuten Investment Management, Inc. | 10,797 | $2.65M | 0.01% | +1,221+12.8% | Added |
| NLB Skladi, upravljanje premozenja, d.o.o. | 10,486 | $2.63M | 0.13% | +6,486+162.2% | Added |
| Swedbank AB | 10,423 | $2.61M | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 10,009 | $2.57M | 0.05% | −13,632−57.7% | Reduced |
| JustInvest LLC | 10,013 | $2.51M | 0.02% | −1,227−10.9% | Reduced |
| British Columbia Investment Management Corp | 9,916 | $2.49M | 0.01% | −2,814−22.1% | Reduced |
| NEOS Investment Management LLC | 9,815 | $2.46M | 0.01% | +5,562+130.8% | Added |
| Nissay Asset Management Corp | 9,802 | $2.46M | 0.01% | +190+2.0% | Added |
| CIBC World Markets Inc. | 9,790 | $2.45M | 0.00% | +5,527+129.7% | Added |
| Colony Group, LLC | 9,617 | $2.44M | 0.00% | −355−3.6% | Reduced |
| ASR Vermogensbeheer N.V. | 9,675 | $2.43M | 0.03% | +162+1.7% | Added |
| KBC Group NV | 9,610 | $2.41M | 0.01% | −11,791−55.1% | Reduced |
| Azzad Asset Management Inc | 9,545 | $2.39M | 0.24% | −280−2.8% | Reduced |
| Allstate Corp | 9,409 | $2.36M | 0.03% | +4,144+78.7% | Added |
| UniSuper Management Pty Ltd | 9,400 | $2.36M | 0.02% | +91+1.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 9,190 | $2.30M | 0.00% | −280−3.0% | Reduced |
| Candriam Luxembourg S.C.A. | 9,124 | $2.29M | 0.01% | −753−7.6% | Reduced |
| Davenport & Co LLC | 9,080 | $2.28M | 0.01% | −441−4.6% | Reduced |
| XTX Topco Ltd | 9,040 | $2.27M | 0.04% | +6,325+233.0% | Added |
| Hillman Capital Management, Inc. | 8,906 | $2.23M | 1.55% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 9,055 | $2.22M | 0.39% | +5,261+138.7% | Added |
| Bryn Mawr Trust Co | 8,620 | $2.16M | 0.05% | −85−1.0% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 8,295 | $2.08M | 0.02% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 8,247 | $2.07M | 0.03% | +18+0.2% | Added |
| Janus Henderson Group PLC | 8,172 | $2.05M | 0.00% | −1,669−17.0% | Reduced |
| Salem Investment Counselors Inc | 8,053 | $2.02M | 0.06% | +1,492+22.7% | Added |
| State of Tennessee, Treasury Department | 8,034 | $2.01M | 0.01% | −23,135−74.2% | Reduced |
| Keybank National Association | 7,959 | $1.99M | 0.01% | −885−10.0% | Reduced |
| Susquehanna International Group, LLP | 7,926 | $1.99M | 0.00% | −9,758−55.2% | Reduced |
| Weiss Asset Management LP | 7,924 | $1.99M | 0.04% | +7,924 | New |
| Crossmark Global Holdings, Inc. | 7,880 | $1.98M | 0.03% | +87+1.1% | Added |
| Mutual of America Capital Management LLC | 7,674 | $1.92M | 0.02% | −70−0.9% | Reduced |
| Advisor Group Holdings, Inc. | 7,579 | $1.90M | 0.00% | −1,312−14.8% | Reduced |
| Avanza Fonder AB | 7,508 | $1.88M | 0.05% | 00.0% | Unchanged |
| OP Asset Management Ltd | 7,459 | $1.87M | 0.02% | −734−9.0% | Reduced |
| US Bancorp | 7,332 | $1.84M | 0.00% | −1,336−15.4% | Reduced |
| Acadian Asset Management LLC | 7,322 | $1.83M | 0.00% | −3,279−30.9% | Reduced |
| Storebrand Asset Management AS | 7,239 | $1.81M | 0.01% | −402−5.3% | Reduced |
| State of Alaska, Department of Revenue | 7,175 | $1.80M | 0.02% | 00.0% | Unchanged |
| MML Investors Services, LLC | 7,073 | $1.77M | 0.00% | −5,265−42.7% | Reduced |
| Gotham Asset Management, LLC | 7,066 | $1.77M | 0.01% | +5,324+305.6% | Added |
| Generali Asset Management SPA SGR | 7,029 | $1.76M | 0.04% | +547+8.4% | Added |
| Pinebridge Investments LLC | 7,009 | $1.76M | 0.01% | +7,009 | New |
| Summit Trail Advisors, LLC | 6,920 | $1.73M | 0.02% | +1,136+19.6% | Added |
| Atria Investments LLC | 6,870 | $1.72M | 0.02% | −374−5.2% | Reduced |
| Peninsula Asset Management Inc | 6,749 | $1.69M | 0.86% | −205−2.9% | Reduced |
| HB Wealth Management, LLC | 6,567 | $1.65M | 0.01% | −2,283−25.8% | Reduced |
| Mercer Global Advisors Inc | 6,501 | $1.63M | 0.00% | −2,128−24.7% | Reduced |
| Regions Financial Corp | 6,478 | $1.62M | 0.01% | −2,675−29.2% | Reduced |