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; 833 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, Q2 2026
Institutional positions in West Pharmaceutical Services Inc as of Jun 30, 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
- 833
- +87 vs. Q1 2026
- Shares held
- 70.5M
- −608.2K (−0.9%) vs. Q1 2026
- Total value
- $25.2B
- +$7.48B (+42.1%) vs. Q1 2026
- New holders
- 149
- 304 more added
- Sold out
- 62
- 260 more reduced
9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 833 | $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, Q2 2026
Shares, value and share of portfolio for each institution holding West Pharmaceutical Services Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vident Advisory, LLC | 45,454 | $16.3M | 0.12% | +1,850+4.2% | Added |
| Balyasny Asset Management LLC | 45,766 | $16.4M | 0.03% | +44,645+3,982.6% | Added |
| Baird Financial Group, Inc. | 46,908 | $16.8M | 0.02% | −10,379−18.1% | Reduced |
| Tredje AP-fonden | 48,615 | $17.5M | 0.08% | +21,358+78.4% | Added |
| STRS Ohio | 49,078 | $17.6M | 0.07% | +47,366+2,766.7% | Added |
| Handelsbanken Fonder AB | 49,193 | $17.7M | 0.05% | −8,535−14.8% | Reduced |
| Natixis Advisors, L.P. | 49,906 | $17.9M | 0.02% | −12,666−20.2% | Reduced |
| Janney Montgomery Scott LLC | 50,176 | $18.0M | 0.03% | +50,176 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 51,049 | $18.3M | 0.03% | +2,790+5.8% | Added |
| National Bank of Canada | 51,983 | $18.7M | 0.02% | +2,347+4.7% | Added |
| Ossiam | 52,586 | $18.9M | 0.25% | +52,586 | New |
| Credit Agricole S A | 52,687 | $18.9M | 0.05% | −13,939−20.9% | Reduced |
| Alliancebernstein L.P. | 76,356 | $19.1M | 0.01% | −10,945−12.5% | Reduced |
| Great West Life Assurance Co | 53,733 | $19.3M | 0.03% | +3,437+6.8% | Added |
| New York State Teachers Retirement System | 55,023 | $19.8M | 0.04% | −5,500−9.1% | Reduced |
| AQR Capital Management LLC | 57,609 | $20.3M | 0.01% | −209,335−78.4% | Reduced |
| Public Employees Retirement Association of Colorado | 57,395 | $20.6M | 0.07% | +8,700+17.9% | Added |
| Adage Capital Partners GP, L.L.C. | 59,007 | $21.2M | 0.03% | −5,200−8.1% | Reduced |
| Blair William & Co | 61,152 | $22.0M | 0.06% | −1,314−2.1% | Reduced |
| Standard Life Aberdeen plc | 61,351 | $22.0M | 0.03% | −7,725−11.2% | Reduced |
| Assetmark, Inc | 62,265 | $22.4M | 0.04% | +51,666+487.5% | Added |
| North Growth Management Ltd. | 62,000 | $22.4M | 2.88% | 00.0% | Unchanged |
| Aviva PLC | 63,477 | $22.8M | 0.03% | +91+0.1% | Added |
| State Board of Administration of Florida Retirement System | 64,484 | $23.1M | 0.04% | −1,228−1.9% | Reduced |
| CI Private Wealth, LLC | 64,490 | $23.2M | 0.03% | +5,161+8.7% | Added |
| Assenagon Asset Management S.A. | 64,754 | $23.2M | 0.03% | −72,807−52.9% | Reduced |
| Fifth Third Bancorp | 65,285 | $23.4M | 0.04% | −61−0.1% | Reduced |
| Clough Capital Partners L P | 66,400 | $23.8M | 1.94% | +66,400 | New |
| LPL Financial LLC | 67,793 | $24.3M | 0.01% | +1,940+2.9% | Added |
| OrbiMed Advisors LLC | 70,600 | $25.3M | 0.48% | +70,600 | New |
| RMB Capital Management, LLC | 75,808 | $27.2M | 0.42% | +3,642+5.0% | Added |
| Boston Trust Walden Corp | 81,231 | $29.2M | 0.22% | +81,231 | New |
| Marshall Wace, LLP | 83,578 | $30.0M | 0.03% | +82,005+5,213.3% | Added |
| Royal London Asset Management Ltd | 83,818 | $30.1M | 0.06% | −15,732−15.8% | Reduced |
| Principal Financial Group Inc | 85,727 | $30.8M | 0.02% | +364+0.4% | Added |
| Creative Planning | 90,518 | $32.5M | 0.02% | +7,146+8.6% | Added |
| Raymond James Financial Inc | 92,072 | $33.1M | 0.01% | +9,513+11.5% | Added |
| Ninety One UK Ltd | 93,032 | $33.4M | 0.07% | −26,199−22.0% | Reduced |
| Candriam Luxembourg S.C.A. | 96,349 | $34.6M | 0.16% | +87,225+956.0% | Added |
| Asset Management One Co.,Ltd. | 96,318 | $34.6M | 0.09% | +21,521+28.8% | Added |
| American Century Companies Inc | 99,557 | $35.7M | 0.02% | −300,143−75.1% | Reduced |
| Teacher Retirement System of Texas | 104,511 | $37.5M | 0.10% | +27,986+36.6% | Added |
| First Trust Advisors LP | 108,546 | $39.0M | 0.02% | +80,682+289.6% | Added |
| Conestoga Capital Advisors, LLC | 111,294 | $40.0M | 0.87% | −19,676−15.0% | Reduced |
| California State Teachers Retirement System | 113,071 | $40.6M | 0.04% | +2,437+2.2% | Added |
| Wells Fargo & Company | 114,107 | $41.0M | 0.01% | +17,133+17.7% | Added |
| Susquehanna Portfolio Strategies, LLC | 119,345 | $42.8M | 0.68% | +63,644+114.3% | Added |
| USS Investment Management Ltd | 123,343 | $44.3M | 0.17% | +104,136+542.2% | Added |
| National Pension Service | 126,271 | $45.3M | 0.03% | +122,301+3,080.6% | Added |
| California Public Employees Retirement System | 127,799 | $45.9M | 0.03% | −105,118−45.1% | Reduced |
| Local Pensions Partnership Investment Ltd | 128,880 | $46.3M | 0.97% | +8,000+6.6% | Added |
| Bank of Montreal | 137,753 | $49.5M | 0.02% | +10,579+8.3% | Added |
| HSBC Holdings PLC | 138,384 | $49.6M | 0.02% | −18,511−11.8% | Reduced |
| Vanguard Asset Management, Ltd | 138,190 | $49.6M | 0.03% | +13,548+10.9% | Added |
| Seilern Investment Management Ltd | 138,230 | $49.6M | 6.25% | −87,791−38.8% | Reduced |
| Schroder Investment Management Group | 144,449 | $51.2M | 0.04% | +9,443+7.0% | Added |
| Prudential Financial Inc | 143,328 | $51.5M | 0.06% | +46,916+48.7% | Added |
| Ami Asset Management Corp | 146,764 | $52.7M | 3.03% | −7,637−4.9% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 149,862 | $53.8M | 0.05% | +104,935+233.6% | Added |
| Vanguard Global Advisers, LLC | 152,124 | $54.6M | 0.03% | −5,613−3.6% | Reduced |
| Allianz Asset Management GmbH | 155,139 | $55.7M | 0.05% | −21,421−12.1% | Reduced |
| Birch Hill Investment Advisors LLC | 159,696 | $57.3M | 2.32% | −1,463−0.9% | Reduced |
| Nomura Asset Management Co Ltd | 160,692 | $57.7M | 0.12% | −13,570−7.8% | Reduced |
| Bamco Inc | 164,174 | $58.9M | 0.09% | −35,576−17.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 168,080 | $60.3M | 0.03% | −4,700−2.7% | Reduced |
| Wellington Management Group LLP | 175,052 | $62.8M | 0.01% | −73,584−29.6% | Reduced |
| Lord, Abbett & Co. LLC | 181,384 | $65.1M | 0.19% | +181,384 | New |
| CBOE Vest Financial, LLC | 182,581 | $65.5M | 0.69% | −20,367−10.0% | Reduced |
| Los Angeles Capital Management LLC | 186,295 | $66.9M | 0.25% | +125,590+206.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 188,231 | $67.6M | 0.04% | +6,146+3.4% | Added |
| Citigroup Inc | 190,778 | $68.5M | 0.03% | +48,344+33.9% | Added |
| Federated Hermes, Inc. | 197,269 | $70.8M | 0.10% | −10,892−5.2% | Reduced |
| Swiss National Bank | 203,160 | $72.9M | 0.04% | −8,000−3.8% | Reduced |
| Brown Brothers Harriman & Co | 206,212 | $74.0M | 0.32% | −22,203−9.7% | Reduced |
| Jane Street Group, LLC | 217,581 | $78.1M | 0.05% | −87,551−28.7% | Reduced |
| LGT Group Foundation | 223,365 | $80.2M | 0.91% | +19,809+9.7% | Added |
| Border to Coast Pensions Partnership Ltd | 226,857 | $81.4M | 1.20% | 00.0% | Unchanged |
| Riverbridge Partners LLC | 232,514 | $83.5M | 2.33% | −28,928−11.1% | Reduced |
| Rhumbline Advisers | 239,648 | $86.0M | 0.06% | −19,579−7.6% | Reduced |
| Barclays PLC | 246,199 | $88.4M | 0.03% | −102,905−29.5% | Reduced |
| BNP Paribas Arbitrage, SA | 257,112 | $92.3M | 0.05% | −56,482−18.0% | Reduced |
| Envestnet Asset Management Inc | 259,536 | $93.2M | 0.02% | +24,015+10.2% | Added |
| Russell Investments Group, Ltd. | 271,862 | $97.5M | 0.09% | +76,530+39.2% | Added |
| Holocene Advisors, LP | 275,421 | $98.9M | 0.23% | +71,800+35.3% | Added |
| Point72 Asset Management, L.P. | 283,396 | $101.7M | 0.16% | +124,046+77.8% | Added |
| Quantinno Capital Management LP | 308,116 | $110.6M | 0.13% | +146,638+90.8% | Added |
| Stonehage Fleming Financial Services Holdings Ltd | 340,263 | $122.2M | 4.17% | +85,446+33.5% | Added |
| Bank of America Corp | 350,482 | $125.8M | 0.01% | −31,331−8.2% | Reduced |
| Citadel Advisors LLC | 352,769 | $126.6M | 0.07% | +29,182+9.0% | Added |
| UBS Group AG | 374,361 | $134.4M | 0.02% | +98,853+35.9% | Added |
| Amundi | 385,311 | $138.3M | 0.03% | −258,754−40.2% | Reduced |
| Vanguard Fiduciary Trust Co | 396,602 | $142.4M | 0.03% | −8,502−2.1% | Reduced |
| Liontrust Investment Partners LLP | 402,233 | $144.4M | 2.12% | +65,238+19.4% | Added |
| Deutsche Bank AG | 410,699 | $147.4M | 0.04% | −8,155−1.9% | Reduced |
| William Blair Investment Management, LLC | 417,309 | $149.8M | 0.45% | +377,584+950.5% | Added |
| Royal Bank of Canada | 434,255 | $155.9M | 0.03% | +56,703+15.0% | Added |
| Arrowstreet Capital, Limited Partnership | 438,718 | $157.5M | 0.07% | −71,798−14.1% | Reduced |
| Gates Foundation TrustSuperinvestorGates Foundation Trust | 444,500 | $159.6M | 0.46% | 00.0% | Unchanged |
| Nuveen, LLC | 446,156 | $160.2M | 0.04% | +37,166+9.1% | Added |
| APG Asset Management N.V. | 560,582 | $176.0M | 0.43% | −706,700−55.8% | Reduced |