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, 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 | 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, 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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 9,539,173 | $2.62B | 0.04% | −165,775−1.7% | Reduced |
| BlackRock, Inc. | 6,599,735 | $1.82B | 0.03% | +143,874+2.2% | Added |
| State Street Corp | 3,252,020 | $894.8M | 0.03% | +44,109+1.4% | Added |
| Artisan Partners Limited Partnership | 2,850,401 | $784.3M | 1.20% | +79,481+2.9% | Added |
| Bank of New York Mellon Corp | 2,662,035 | $732.4M | 0.13% | −242,674−8.4% | Reduced |
| Brown Advisory Inc | 1,943,606 | $534.8M | 0.75% | −554,476−22.2% | Reduced |
| Geode Capital Management, LLC | 1,869,086 | $512.2M | 0.03% | +11,962+0.6% | Added |
| Generation Investment Management LLP | 1,561,869 | $429.7M | 2.98% | +585,855+60.0% | Added |
| Morgan Stanley | 1,531,858 | $421.5M | 0.03% | +53,229+3.6% | Added |
| T. Rowe Price Investment Management, Inc. | 1,174,962 | $323.3M | 0.20% | +473,547+67.5% | Added |
| Longview Partners (Guernsey) LTD | 1,131,026 | $311.2M | 3.25% | +778,887+221.2% | Added |
| APG Asset Management N.V. | 1,199,005 | $280.9M | 0.80% | −214,693−15.2% | Reduced |
| Norges Bank | 988,737 | $272.0M | 0.03% | +988,737 | New |
| Kayne Anderson Rudnick Investment Management LLC | 955,149 | $262.8M | 0.71% | −82,945−8.0% | Reduced |
| Invesco Ltd. | 908,625 | $250.0M | 0.02% | +27,340+3.1% | Added |
| UBS Asset Management Americas Inc | 905,656 | $249.2M | 0.05% | +20,420+2.3% | Added |
| Franklin Resources Inc | 888,252 | $244.4M | 0.06% | −77,679−8.0% | Reduced |
| Northern Trust Corp | 726,512 | $199.9M | 0.03% | −18,379−2.5% | Reduced |
| Van Eck Associates Corp | 716,087 | $197.0M | 0.16% | −708,792−49.7% | Reduced |
| Findlay Park Partners LLP | 666,926 | $183.5M | 2.34% | −135,180−16.9% | Reduced |
| Jacobs Levy Equity Management, Inc | 639,561 | $176.0M | 0.68% | +229,913+56.1% | Added |
| TD Asset Management Inc | 605,726 | $166.7M | 0.13% | −606−0.1% | Reduced |
| SEI Investments Co | 591,757 | $162.8M | 0.16% | +64,247+12.2% | Added |
| ProShare Advisors LLC | 586,847 | $161.5M | 0.28% | −25,773−4.2% | Reduced |
| Charles Schwab Investment Management Inc | 542,803 | $149.3M | 0.02% | +15,639+3.0% | Added |
| Bank of America Corp | 531,846 | $146.3M | 0.01% | +57,640+12.2% | Added |
| AQR Capital Management LLC | 517,631 | $142.4M | 0.07% | −28,248−5.2% | Reduced |
| Epoch Investment Partners, Inc. | 505,305 | $139.0M | 0.79% | −20,594−3.9% | Reduced |
| Legal & General Group Plc | 502,686 | $138.3M | 0.03% | −5,879−1.2% | Reduced |
| Champlain Investment Partners, LLC | 475,355 | $130.8M | 1.32% | +16,435+3.6% | Added |
| American Century Companies Inc | 445,484 | $122.6M | 0.06% | +148,476+50.0% | Added |
| Royal Bank of Canada | 444,860 | $122.4M | 0.02% | −114,917−20.5% | Reduced |
| Gates Foundation TrustSuperinvestorGates Foundation Trust | 444,500 | $122.3M | 0.35% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 440,045 | $121.1M | 0.02% | +21,968+5.3% | Added |
| Dimensional Fund Advisors LP | 437,360 | $120.3M | 0.03% | +56,454+14.8% | Added |
| Steadfast Capital Management LP | 429,907 | $118.3M | 2.07% | −41,511−8.8% | Reduced |
| Neuberger Berman Group LLC | 427,512 | $117.6M | 0.09% | −17,883−4.0% | Reduced |
| Nuveen, LLC | 404,322 | $111.2M | 0.03% | +52,218+14.8% | Added |
| State Farm Mutual Automobile Insurance Co | 388,239 | $106.8M | 0.08% | 00.0% | Unchanged |
| Deutsche Bank AG | 372,875 | $102.6M | 0.03% | +26,580+7.7% | Added |
| Liontrust Investment Partners LLP | 366,188 | $100.8M | 1.50% | +366,188 | New |
| Amundi | 347,426 | $95.6M | 0.03% | +62,976+22.1% | Added |
| Price T Rowe Associates Inc | 339,267 | $93.3M | 0.01% | +224,722+196.2% | Added |
| DF Dent & Co Inc | 319,582 | $87.9M | 1.27% | −64,123−16.7% | Reduced |
| Riverbridge Partners LLC | 318,613 | $87.7M | 1.64% | −43,927−12.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 300,404 | $82.7M | 0.05% | +79,440+36.0% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 295,028 | $81.2M | 0.22% | +295,028 | New |
| Seilern Investment Management Ltd | 278,229 | $76.6M | 5.94% | −48,728−14.9% | Reduced |
| JPMorgan Chase & Co | 274,960 | $75.7M | 0.01% | +37,997+16.0% | Added |
| Rhumbline Advisers | 272,192 | $74.9M | 0.06% | +29,250+12.0% | Added |
| Bamco Inc | 263,189 | $72.4M | 0.20% | −37,742−12.5% | Reduced |
| Assenagon Asset Management S.A. | 251,006 | $69.1M | 0.10% | +62,139+32.9% | Added |
| UBS Group AG | 250,398 | $68.9M | 0.01% | −44,512−15.1% | Reduced |
| Envestnet Asset Management Inc | 248,112 | $68.3M | 0.02% | −73,875−22.9% | Reduced |
| Citadel Advisors LLC | 245,640 | $67.6M | 0.05% | −481,897−66.2% | Reduced |
| Brown Brothers Harriman & Co | 240,691 | $66.2M | 0.36% | −6,665−2.7% | Reduced |
| Border to Coast Pensions Partnership Ltd | 236,307 | $65.1M | 1.13% | +80,575+51.7% | Added |
| Point72 Asset Management, L.P. | 235,037 | $64.7M | 0.10% | −424,216−64.3% | Reduced |
| Jane Street Group, LLC | 219,746 | $60.5M | 0.07% | +183,501+506.3% | Added |
| BNP Paribas Arbitrage, SA | 213,333 | $58.7M | 0.04% | +92,033+75.9% | Added |
| LGT Group Foundation | 205,087 | $56.8M | 0.62% | −4,498−2.1% | Reduced |
| Federated Hermes, Inc. | 200,066 | $55.0M | 0.09% | −27,470−12.1% | Reduced |
| Swiss National Bank | 197,040 | $54.2M | 0.03% | −10,060−4.9% | Reduced |
| Schroder Investment Management Group | 179,173 | $49.6M | 0.04% | +28,896+19.2% | Added |
| CBOE Vest Financial, LLC | 178,079 | $49.0M | 0.62% | −18,382−9.4% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 176,116 | $48.5M | 0.03% | −12,379−6.6% | Reduced |
| Russell Investments Group, Ltd. | 172,102 | $47.4M | 0.05% | +34,708+25.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 167,203 | $46.2M | 0.03% | +2,130+1.3% | Added |
| Prudential Financial Inc | 163,091 | $44.9M | 0.05% | +59,747+57.8% | Added |
| Ami Asset Management Corp | 159,039 | $43.8M | 2.48% | −3,961−2.4% | Reduced |
| Nomura Asset Management Co Ltd | 154,502 | $42.5M | 0.11% | −7,219−4.5% | Reduced |
| Birch Hill Investment Advisors LLC | 152,148 | $41.9M | 1.75% | +15,678+11.5% | Added |
| Pictet Asset Management Holding SA | 151,997 | $41.8M | 0.04% | −38,116−20.0% | Reduced |
| HSBC Holdings PLC | 146,872 | $40.4M | 0.02% | +27,745+23.3% | Added |
| Baird Financial Group, Inc. | 146,206 | $40.2M | 0.06% | +24,603+20.2% | Added |
| Citigroup Inc | 145,656 | $40.1M | 0.03% | +62,889+76.0% | Added |
| Barclays PLC | 142,185 | $39.1M | 0.02% | +2,169+1.5% | Added |
| Two Sigma Investments, LP | 139,939 | $38.5M | 0.06% | +38,738+38.3% | Added |
| Walleye Capital LLC | 134,453 | $37.0M | 0.21% | +109,722+443.7% | Added |
| Bank of Montreal | 132,649 | $36.5M | 0.01% | −322−0.2% | Reduced |
| Holocene Advisors, LP | 127,717 | $35.1M | 0.07% | −59,394−31.7% | Reduced |
| HRT Financial LP | 127,188 | $35.0M | 0.11% | +124,799+5,223.9% | Added |
| Asset Management One Co.,Ltd. | 125,004 | $34.4M | 0.10% | +55,229+79.2% | Added |
| California Public Employees Retirement System | 123,336 | $33.9M | 0.02% | +830+0.7% | Added |
| Annex Advisory Services, LLC | 122,958 | $33.8M | 0.65% | +9,800+8.7% | Added |
| Conestoga Capital Advisors, LLC | 122,791 | $33.8M | 0.57% | +22,008+21.8% | Added |
| Local Pensions Partnership Investment Ltd | 120,880 | $33.3M | 0.59% | −5,500−4.4% | Reduced |
| Canada Pension Plan Investment Board | 114,410 | $31.5M | 0.02% | −45,809−28.6% | Reduced |
| California State Teachers Retirement System | 113,570 | $31.2M | 0.03% | −3,946−3.4% | Reduced |
| Korea Investment CORP | 110,970 | $30.5M | 0.06% | +54,873+97.8% | Added |
| Millennium Management LLC | 110,393 | $30.4M | 0.02% | −202,593−64.7% | Reduced |
| Nan Shan Life Insurance Co., Ltd. | 109,867 | $30.2M | 0.93% | 00.0% | Unchanged |
| FMR LLC | 109,654 | $30.2M | 0.00% | +65,290+147.2% | Added |
| Wells Fargo & Company | 106,711 | $29.4M | 0.01% | −2,312−2.1% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 106,451 | $29.3M | 0.45% | +22,592+26.9% | Added |
| Quantinno Capital Management LP | 105,406 | $29.0M | 0.06% | +13,080+14.2% | Added |
| Renaissance Technologies LLC | 104,736 | $28.8M | 0.04% | +104,736 | New |
| EULAV Asset Management | 104,616 | $28.8M | 0.77% | 00.0% | Unchanged |
| Raymond James Financial Inc | 102,448 | $28.2M | 0.01% | −18,002−14.9% | Reduced |
| Mackenzie Financial Corp | 101,911 | $28.2M | 0.03% | +9,241+10.0% | Added |