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, Q4 2025
Institutional positions in West Pharmaceutical Services Inc as of Dec 31, 2025. 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
- 804
- +59 vs. Q3 2025
- Shares held
- 69.5M
- +754.2K (+1.1%) vs. Q3 2025
- Total value
- $19.1B
- +$1.11B (+6.2%) vs. Q3 2025
- New holders
- 115
- 269 more added
- Sold out
- 56
- 290 more reduced
13 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding West Pharmaceutical Services Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dark Forest Capital Management LP | 20,131 | $5.54M | 0.25% | +19,028+1,725.1% | Added |
| M&T Bank Corp | 20,455 | $5.63M | 0.02% | −170−0.8% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 20,446 | $5.63M | 0.03% | +14,753+259.1% | Added |
| Illinois Municipal Retirement Fund | 20,463 | $5.63M | 0.07% | +1,415+7.4% | Added |
| Ameriprise Financial Inc | 21,054 | $5.79M | 0.00% | −1,615−7.1% | Reduced |
| Swiss Life Asset Management Ltd | 21,299 | $5.86M | 0.03% | +1,811+9.3% | Added |
| KBC Group NV | 21,401 | $5.89M | 0.01% | +10,077+89.0% | Added |
| Public Employees Retirement System of Ohio | 21,545 | $5.93M | 0.02% | −818−3.7% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 21,480 | $6.03M | 0.01% | −7,693−26.4% | Reduced |
| La Banque Postale Asset Management SA | 22,009 | $6.06M | 0.07% | +19,819+905.0% | Added |
| Squarepoint Ops LLC | 22,019 | $6.06M | 0.01% | +20,101+1,048.0% | Added |
| Pathstone Holdings, LLC | 22,316 | $6.14M | 0.02% | +708+3.3% | Added |
| Jump Financial, LLC | 22,568 | $6.21M | 0.08% | +21,499+2,011.1% | Added |
| Mariner, LLC | 22,615 | $6.23M | 0.01% | +3,585+18.8% | Added |
| Ieq Capital, LLC | 23,107 | $6.36M | 0.02% | +3,388+17.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 23,919 | $6.58M | 0.01% | +2,922+13.9% | Added |
| Toronto Dominion Bank | 24,037 | $6.61M | 0.01% | −6,594−21.5% | Reduced |
| Whittier Trust Co of Nevada Inc | 23,641 | $6.64M | 0.14% | −350−1.5% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 24,222 | $6.66M | 0.03% | +172+0.7% | Added |
| Allianz Asset Management GmbH | 24,250 | $6.67M | 0.01% | +3,454+16.6% | Added |
| Panagora Asset Management Inc | 24,599 | $6.77M | 0.02% | +23,693+2,615.1% | Added |
| State of New Jersey Common Pension Fund D | 24,898 | $6.85M | 0.02% | −589−2.3% | Reduced |
| KLP Kapitalforvaltning AS | 25,400 | $6.99M | 0.03% | 00.0% | Unchanged |
| Victory Capital Management Inc | 25,534 | $7.03M | 0.00% | −509−2.0% | Reduced |
| Yousif Capital Management, LLC | 28,619 | $7.17M | 0.08% | −1,035−3.5% | Reduced |
| State of Tennessee, Treasury Department | 31,169 | $7.20M | 0.02% | +15,115+94.2% | Added |
| Alpine Peaks Capital, LP | 26,483 | $7.29M | 6.96% | −350−1.3% | Reduced |
| The PNC Financial Services Group, Inc. | 26,581 | $7.31M | 0.00% | −427−1.6% | Reduced |
| Truist Financial Corp | 26,607 | $7.32M | 0.01% | −2,500−8.6% | Reduced |
| Verition Fund Management LLC | 26,928 | $7.41M | 0.04% | +138+0.5% | Added |
| Brasada Capital Management, LP | 26,997 | $7.46M | 1.28% | −1,114−4.0% | Reduced |
| Cresset Asset Management, LLC | 27,757 | $7.64M | 0.03% | −428−1.5% | Reduced |
| CI Private Wealth, LLC | 28,350 | $7.80M | 0.01% | +24+0.1% | Added |
| Mn Services Vermogensbeheer B.V. | 28,524 | $7.85M | 0.05% | +1,824+6.8% | Added |
| Natixis | 28,658 | $7.88M | 0.03% | +14,241+98.8% | Added |
| Blue Zone Wealth Advisors, LLC | 29,248 | $8.05M | 1.54% | +365+1.3% | Added |
| Unisphere Establishment | 29,500 | $8.12M | 0.06% | 00.0% | Unchanged |
| Dai-Ichi Life Insurance Company, Ltd | 29,599 | $8.14M | 0.21% | +3,527+13.5% | Added |
| Jefferies Financial Group Inc. | 29,876 | $8.22M | 0.07% | −8,869−22.9% | Reduced |
| Treasurer of the State of North Carolina | 29,994 | $8.25M | 0.03% | −2,192−6.8% | Reduced |
| Resona Asset Management Co.,Ltd. | 30,028 | $8.27M | 0.04% | −471−1.5% | Reduced |
| Cetera Investment Advisers | 30,135 | $8.29M | 0.01% | −679−2.2% | Reduced |
| Oppenheimer Asset Management Inc. | 30,760 | $8.46M | 0.10% | −1,364−4.2% | Reduced |
| Danske Bank A/S | 33,517 | $9.22M | 0.02% | +1,654+5.2% | Added |
| Parnassus Investments | 34,387 | $9.46M | 0.02% | +819+2.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 34,507 | $9.49M | 0.02% | −58−0.2% | Reduced |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 34,752 | $9.56M | 0.34% | +34,752 | New |
| Stifel Financial Corp | 34,926 | $9.61M | 0.01% | −3,467−9.0% | Reduced |
| Hudson Bay Capital Management LP | 35,448 | $9.75M | 0.06% | +35,448 | New |
| Marshall Wace, LLP | 35,625 | $9.80M | 0.01% | +34,825+4,353.1% | Added |
| Chevy Chase Trust Holdings, Inc. | 36,475 | $10.0M | 0.03% | −223−0.6% | Reduced |
| Nisa Investment Advisors, LLC | 37,948 | $10.4M | 0.03% | +397+1.1% | Added |
| Teacher Retirement System of Texas | 38,157 | $10.5M | 0.04% | +28,626+300.3% | Added |
| North Growth Management Ltd. | 39,000 | $10.8M | 1.69% | +5,000+14.7% | Added |
| DekaBank Deutsche Girozentrale | 27,611 | $10.8M | 0.02% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 40,670 | $11.2M | 0.06% | +40,670 | New |
| McCollum Christoferson Group LLC | 41,086 | $11.3M | 3.27% | −615−1.5% | Reduced |
| William Blair Investment Management, LLC | 41,242 | $11.3M | 0.03% | +437+1.1% | Added |
| GW&K Investment Management, LLC | 41,441 | $11.4M | 0.10% | +40,577+4,696.4% | Added |
| New York State Common Retirement Fund | 41,547 | $11.4M | 0.02% | −46,368−52.7% | Reduced |
| Trexquant Investment LP | 43,355 | $11.9M | 0.11% | +35,184+430.6% | Added |
| Los Angeles Capital Management LLC | 42,911 | $12.0M | 0.04% | +5,970+16.2% | Added |
| Grace & White Inc | 43,530 | $12.0M | 2.14% | −2,200−4.8% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 43,959 | $12.1M | 0.02% | −2,561−5.5% | Reduced |
| Taproot Management LP | 44,758 | $12.3M | 2.00% | +44,758 | New |
| Janney Montgomery Scott LLC | 45,159 | $12.4M | 0.03% | −3,099−6.4% | Reduced |
| Thrivent Financial for Lutherans | 46,092 | $12.7M | 0.02% | +12,781+38.4% | Added |
| Whittier Trust Co | 45,481 | $12.8M | 0.14% | −297−0.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 46,726 | $12.9M | 0.01% | −42,677−47.7% | Reduced |
| National Bank of Canada | 47,740 | $13.1M | 0.01% | +2,437+5.4% | Added |
| Fred Alger Management, LLC | 48,124 | $13.2M | 0.05% | +28,390+143.9% | Added |
| Great West Life Assurance Co | 48,223 | $13.3M | 0.02% | −28,220−36.9% | Reduced |
| Public Employees Retirement Association of Colorado | 48,695 | $13.4M | 0.05% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 49,616 | $13.7M | 0.03% | +11,718+30.9% | Added |
| BLI - Banque de Luxembourg Investments | 49,900 | $13.8M | 0.41% | −3,000−5.7% | Reduced |
| Natixis Advisors, L.P. | 52,304 | $14.4M | 0.02% | −4,558−8.0% | Reduced |
| FIL Ltd | 52,345 | $14.4M | 0.01% | +656+1.3% | Added |
| Vident Advisory, LLC | 53,695 | $14.8M | 0.14% | −363−0.7% | Reduced |
| Kempen Capital Management N.V. | 54,515 | $15.0M | 0.13% | +54,515 | New |
| Jennison Associates LLC | 54,593 | $15.0M | 0.01% | +17,363+46.6% | Added |
| Comerica Bank | 56,693 | $15.6M | 0.06% | +13,680+31.8% | Added |
| New York State Teachers Retirement System | 58,833 | $16.2M | 0.03% | +101+0.2% | Added |
| Aviva PLC | 61,686 | $17.0M | 0.03% | +3,109+5.3% | Added |
| Ofi Invest Asset Management | 72,558 | $17.0M | 0.24% | +72,558 | New |
| Blair William & Co | 62,316 | $17.1M | 0.05% | −1,683−2.6% | Reduced |
| Handelsbanken Fonder AB | 63,254 | $17.4M | 0.05% | +2,474+4.1% | Added |
| Adage Capital Partners GP, L.L.C. | 64,907 | $17.9M | 0.03% | +9,400+16.9% | Added |
| Standard Life Aberdeen plc | 65,628 | $18.1M | 0.03% | −1,181−1.8% | Reduced |
| State Board of Administration of Florida Retirement System | 65,739 | $18.1M | 0.03% | −1,600−2.4% | Reduced |
| Man Group plc | 67,328 | $18.5M | 0.04% | −35,157−34.3% | Reduced |
| Polar Capital Holdings Plc | 69,332 | $19.1M | 0.09% | +69,332 | New |
| Manufacturers Life Insurance Company, The | 70,452 | $19.4M | 0.02% | +26,639+60.8% | Added |
| RMB Capital Management, LLC | 72,533 | $20.0M | 0.35% | −1,960−2.6% | Reduced |
| LPL Financial LLC | 73,841 | $20.3M | 0.01% | −2,787−3.6% | Reduced |
| Creative Planning | 79,502 | $21.9M | 0.02% | +19,557+32.6% | Added |
| Alliancebernstein L.P. | 80,043 | $22.0M | 0.01% | −2,985−3.6% | Reduced |
| Principal Financial Group Inc | 85,633 | $23.6M | 0.01% | +2,184+2.6% | Added |
| Credit Agricole S A | 88,989 | $24.5M | 0.07% | −26,634−23.0% | Reduced |
| Ensign Peak Advisors, Inc | 89,737 | $24.7M | 0.04% | −13,785−13.3% | Reduced |
| Royal London Asset Management Ltd | 92,414 | $25.4M | 0.05% | +40,712+78.7% | Added |