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 |
|---|---|---|---|---|---|
| Raymond James Financial Inc | 82,559 | $20.7M | 0.01% | −19,889−19.4% | Reduced |
| Man Group plc | 79,649 | $20.0M | 0.04% | +12,321+18.3% | Added |
| Teacher Retirement System of Texas | 76,525 | $19.2M | 0.08% | +38,368+100.6% | Added |
| Vestal Point Capital, LP | 75,000 | $18.8M | 0.53% | +75,000 | New |
| Asset Management One Co.,Ltd. | 74,797 | $18.7M | 0.06% | −50,207−40.2% | Reduced |
| RMB Capital Management, LLC | 72,166 | $18.1M | 0.32% | −367−0.5% | Reduced |
| Standard Life Aberdeen plc | 69,076 | $17.3M | 0.03% | +3,448+5.3% | Added |
| Credit Agricole S A | 66,626 | $16.7M | 0.05% | −22,363−25.1% | Reduced |
| Korea Investment CORP | 66,003 | $16.5M | 0.03% | −44,967−40.5% | Reduced |
| LPL Financial LLC | 65,853 | $16.5M | 0.00% | −7,988−10.8% | Reduced |
| State Board of Administration of Florida Retirement System | 65,712 | $16.5M | 0.03% | −270.0% | Reduced |
| Tudor Investment Corp Et Al | 65,415 | $16.4M | 0.09% | +24,745+60.8% | Added |
| Fifth Third Bancorp | 65,346 | $16.4M | 0.03% | +55,934+594.3% | Added |
| Bank of Nova Scotia | 65,323 | $16.4M | 0.03% | +50,402+337.8% | Added |
| Adage Capital Partners GP, L.L.C. | 64,207 | $16.1M | 0.02% | −700−1.1% | Reduced |
| Aviva PLC | 63,386 | $15.9M | 0.03% | +1,700+2.8% | Added |
| Natixis Advisors, L.P. | 62,572 | $15.7M | 0.02% | +10,268+19.6% | Added |
| Blair William & Co | 62,466 | $15.7M | 0.04% | +150+0.2% | Added |
| North Growth Management Ltd. | 62,000 | $15.6M | 2.38% | +23,000+59.0% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 61,501 | $15.4M | 0.23% | +61,501 | New |
| Los Angeles Capital Management LLC | 60,705 | $15.2M | 0.06% | +17,794+41.5% | Added |
| New York State Teachers Retirement System | 60,523 | $15.2M | 0.03% | +1,690+2.9% | Added |
| CI Private Wealth, LLC | 59,329 | $14.8M | 0.02% | +30,979+109.3% | Added |
| Handelsbanken Fonder AB | 57,728 | $14.5M | 0.05% | −5,526−8.7% | Reduced |
| Baird Financial Group, Inc. | 57,287 | $14.4M | 0.02% | −88,919−60.8% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 55,701 | $14.0M | 0.21% | −50,750−47.7% | Reduced |
| Andra AP-fonden | 55,007 | $13.8M | 0.17% | +48,327+723.5% | Added |
| BLI - Banque de Luxembourg Investments | 49,900 | $13.6M | 0.41% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 53,639 | $13.4M | 0.03% | +7,547+16.4% | Added |
| Kempen Capital Management N.V. | 51,501 | $12.9M | 0.11% | −3,014−5.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 50,520 | $12.7M | 0.02% | +47,676+1,676.4% | Added |
| Great West Life Assurance Co | 50,296 | $12.7M | 0.02% | +2,073+4.3% | Added |
| National Bank of Canada | 49,636 | $12.4M | 0.01% | +1,896+4.0% | Added |
| Public Employees Retirement Association of Colorado | 48,695 | $12.2M | 0.05% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 48,259 | $12.1M | 0.02% | +4,300+9.8% | Added |
| Manufacturers Life Insurance Company, The | 47,358 | $11.9M | 0.01% | −23,094−32.8% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 44,927 | $11.3M | 0.01% | −1,799−3.9% | Reduced |
| Pictet Asset Management Holding SA | 44,190 | $11.1M | 0.01% | −107,807−70.9% | Reduced |
| Taproot Management LP | 43,673 | $10.9M | 2.07% | −1,085−2.4% | Reduced |
| Vident Advisory, LLC | 43,604 | $10.9M | 0.09% | −10,091−18.8% | Reduced |
| Grace & White Inc | 43,530 | $10.9M | 1.93% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 41,547 | $10.4M | 0.01% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 40,704 | $10.2M | 0.09% | −737−1.8% | Reduced |
| Nordea Investment Management AB | 40,678 | $10.0M | 0.01% | +25,728+172.1% | Added |
| William Blair Investment Management, LLC | 39,725 | $9.96M | 0.03% | −1,517−3.7% | Reduced |
| Ameriprise Financial Inc | 39,255 | $9.81M | 0.00% | +18,201+86.4% | Added |
| State of Wisconsin Investment Board | 38,527 | $9.66M | 0.02% | −11,089−22.3% | Reduced |
| McCollum Christoferson Group LLC | 65,606 | $9.63M | 2.89% | +24,520+59.7% | Added |
| Nisa Investment Advisors, LLC | 36,753 | $9.21M | 0.03% | −1,195−3.1% | Reduced |
| Stifel Financial Corp | 36,370 | $9.12M | 0.01% | +1,444+4.1% | Added |
| Fred Alger Management, LLC | 35,942 | $9.01M | 0.04% | −12,182−25.3% | Reduced |
| Vanguard Investments Australia, Ltd. | 35,687 | $8.94M | 0.03% | +35,687 | New |
| Chevy Chase Trust Holdings, Inc. | 35,443 | $8.88M | 0.03% | −1,032−2.8% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 34,074 | $8.54M | 0.02% | −433−1.3% | Reduced |
| Winton Group Ltd | 33,422 | $8.38M | 0.29% | +33,422 | New |
| Capital Fund Management S.A. | 32,249 | $8.08M | 0.07% | +32,249 | New |
| Yousif Capital Management, LLC | 31,260 | $7.83M | 0.09% | +2,641+9.2% | Added |
| Danske Bank A/S | 31,248 | $7.83M | 0.02% | −2,269−6.8% | Reduced |
| Cresset Asset Management, LLC | 31,045 | $7.78M | 0.03% | +3,288+11.8% | Added |
| Resona Asset Management Co.,Ltd. | 31,088 | $7.72M | 0.04% | +1,060+3.5% | Added |
| Treasurer of the State of North Carolina | 30,645 | $7.68M | 0.02% | +651+2.2% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 30,600 | $7.67M | 0.04% | +10,990+56.0% | Added |
| Robeco Institutional Asset Management B.V. | 30,082 | $7.54M | 0.01% | +17,203+133.6% | Added |
| Alpine Peaks Capital, LP | 29,883 | $7.49M | 7.57% | +3,400+12.8% | Added |
| Unisphere Establishment | 29,500 | $7.39M | 0.06% | 00.0% | Unchanged |
| Blue Zone Wealth Advisors, LLC | 29,068 | $7.29M | 1.48% | −180−0.6% | Reduced |
| Mn Services Vermogensbeheer B.V. | 28,524 | $7.15M | 0.05% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 28,409 | $7.12M | 0.01% | −61,328−68.3% | Reduced |
| First Trust Advisors LP | 27,864 | $6.98M | 0.00% | +13,080+88.5% | Added |
| DekaBank Deutsche Girozentrale | 27,611 | $6.98M | 0.01% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 27,520 | $6.90M | 0.03% | +2,120+8.3% | Added |
| CIBC Bancorp USA Inc. | 27,424 | $6.87M | 0.01% | +27,424 | New |
| The PNC Financial Services Group, Inc. | 27,408 | $6.87M | 0.00% | +827+3.1% | Added |
| Victory Capital Management Inc | 27,406 | $6.87M | 0.00% | +1,872+7.3% | Added |
| Tredje AP-fonden | 27,257 | $6.83M | 0.04% | +17,074+167.7% | Added |
| Oppenheimer Asset Management Inc. | 27,197 | $6.82M | 0.08% | −3,563−11.6% | Reduced |
| ExodusPoint Capital Management, LP | 26,814 | $6.72M | 0.07% | +10,246+61.8% | Added |
| Jones Financial Companies LLLP | 26,246 | $6.39M | 0.00% | +24,703+1,601.0% | Added |
| FIL Ltd | 25,439 | $6.38M | 0.00% | −26,906−51.4% | Reduced |
| State of New Jersey Common Pension Fund D | 24,898 | $6.24M | 0.02% | 00.0% | Unchanged |
| Truist Financial Corp | 24,412 | $6.12M | 0.01% | −2,195−8.2% | Reduced |
| Cetera Investment Advisers | 24,058 | $6.03M | 0.01% | −6,077−20.2% | Reduced |
| Squarepoint Ops LLC | 23,661 | $5.93M | 0.01% | +1,642+7.5% | Added |
| Pathstone Holdings, LLC | 23,596 | $5.91M | 0.02% | +1,280+5.7% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 23,443 | $5.88M | 0.03% | −779−3.2% | Reduced |
| Bridgewater Associates, LP | 23,161 | $5.81M | 0.03% | +19,088+468.6% | Added |
| Wiley Bros.-Aintree Capital, LLC | 23,053 | $5.79M | 0.03% | +2,607+12.8% | Added |
| Qube Research & Technologies Ltd | 22,304 | $5.59M | 0.01% | −73,726−76.8% | Reduced |
| TD Waterhouse Canada Inc. | 21,952 | $5.54M | 0.02% | +19,845+941.9% | Added |
| Swiss Life Asset Management Ltd | 21,668 | $5.43M | 0.03% | +369+1.7% | Added |
| NFJ Investment Group, LLC | 21,606 | $5.42M | 0.21% | +21,606 | New |
| Toroso Investments, LLC | 21,330 | $5.35M | 0.02% | +21,330 | New |
| Mackenzie Financial Corp | 21,292 | $5.34M | 0.01% | −80,619−79.1% | Reduced |
| Toronto Dominion Bank | 21,221 | $5.32M | 0.01% | −2,816−11.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 20,913 | $5.24M | 0.02% | +3,475+19.9% | Added |
| Public Employees Retirement System of Ohio | 20,835 | $5.22M | 0.02% | −710−3.3% | Reduced |
| Whittier Trust Co | 19,990 | $5.13M | 0.06% | −25,491−56.0% | Reduced |
| Czech National Bank | 19,593 | $4.91M | 0.03% | +623+3.3% | Added |
| Arizona State Retirement System | 19,549 | $4.90M | 0.03% | −188−1.0% | Reduced |
| State of Michigan Retirement System | 19,456 | $4.88M | 0.03% | 00.0% | Unchanged |