Security record · archived quarter
WST
West Pharmaceutical Services, Inc. · Healthcare · Medical - Instruments & Supplies
161Tracked holders
-2Δ holders
49.75MShares held
$12.46BReported value
+4New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth -1.2% ·
share flow +3.6% ·
net new positions -1.9%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 4 | 0 | 175.10K | $64.20M | n/a | n/a |
| Q2 2026 | 160 | +3 | 50.04M | $17.95B | +8 | −6 |
| Q1 2026 | 161 | -2 | 49.75M | $12.46B | +4 | −7 |
| Q4 2025 | 162 | +3 | 53.70M | $14.74B | +5 | −1 |
| Q3 2025 | 21 | -1 | 26.99M | $7.08B | n/a | −2 |
| Q2 2025 | 20 | 0 | 24.84M | $5.43B | +1 | −1 |
| Q1 2025 | 17 | +2 | 8.37M | $1.87B | +2 | n/a |
| Q4 2024 | 15 | +2 | 8.55M | $2.80B | +2 | n/a |
| Q3 2024 | 12 | -1 | 4.43M | $1.33B | n/a | −1 |
| Q2 2024 | 13 | n/a | 5.33M | $1.75B | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.84M | +3.6% | $1.71B | 0.0% | ▲ Add | 4 | SEC ↗ ×21 |
| 2 | Vanguard Capital Management Llc | 4.68M | n/a | $1.17B | 0.0% | n/c | 1 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 3.29M | +1.3% | $825.55M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 4 | Artisan Partners Limited Partnership | 2.66M | -6.8% | $666.17M | 1.1% | ▼ Trim | 2 | SEC ↗ |
| 5 | Bank of New York Mellon Corp | 2.47M | -7.4% | $618.04M | 0.1% | ▼ Trim | 2 | SEC ↗ ×23 |
| 6 | Geode Capital Management ✦ (passive) | 1.91M | +2.3% | $477.53M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | Morgan Stanley ✦ | 1.46M | -4.8% | $365.50M | 0.0% | ▼ Trim | 3 | SEC ↗ ×19 |
| 8 | Brown Advisory Inc | 1.34M | -31.0% | $336.08M | 0.6% | ▼ Trim | 2 | SEC ↗ ×4 |
| 9 | Fidelity (FMR) ✦ | 1.25M | +1039.7% | $313.24M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 10 | Invesco Ltd. | 1.06M | +16.2% | $264.68M | 0.0% | ▲ Add | 2 | SEC ↗ ×12 |
| 11 | JPMorgan Chase ✦ | 1.04M | +279.5% | $255.78M | 0.0% | ▲ Add | 3 | SEC ↗ ×15 |
| 12 | UBS AM, a distinct business unit of… | 902.76K | -0.3% | $226.27M | 0.0% | ▼ Trim | 2 | SEC ↗ ×11 |
| 13 | Kayne Anderson Rudnick Investment… | 858.30K | -10.1% | $215.12M | 0.6% | ▼ Trim | 2 | SEC ↗ ×2 |
| 14 | Td Asset Management Inc | 768.95K | +26.9% | $192.73M | 0.2% | ▲ Add | 2 | SEC ↗ ×2 |
| 15 | Northern Trust Corp | 731.28K | +0.7% | $183.29M | 0.0% | ▲ Add | 2 | SEC ↗ ×10 |
| 16 | Goldman Sachs Group ✦ | 727.62K | +65.3% | $182.37M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 17 | ProShare Advisors LLC | 660.08K | +12.5% | $165.44M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 18 | Amundi | 644.07K | +85.4% | $161.43M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 19 | Capital Research Global Investors | 604.01K | New | $151.39M | 0.0% | New | 1 | SEC ↗ |
| 20 | Charles Schwab Investment… | 554.33K | +2.1% | $138.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | Sei Investments Co | 529.26K | -10.6% | $132.65M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 22 | T. Rowe Price ✦ | 526.38K | +55.1% | $131.93M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 23 | Arrowstreet Capital ✦ | 510.52K | +69.9% | $127.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 24 | Legal & General Group Plc | 506.46K | +0.8% | $126.94M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 25 | Dimensional Fund Advisors Lp | 461.46K | +5.5% | $115.64M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 26 | Gates Foundation Trust ✦ | 444.50K | 0.0% | $111.41M | 0.4% | Held | 5 | SEC ↗ |
| 27 | Deutsche Bank Ag\ | 418.85K | +12.3% | $104.98M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 28 | Viking Global Investors ✦ | 416.95K | +41.3% | $104.50M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 29 | Nuveen, LLC | 408.99K | +1.1% | $102.51M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 30 | American Century Companies Inc | 399.70K | -10.3% | $100.18M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 31 | State Farm Mutual Automobile… | 388.24K | 0.0% | $97.31M | 0.1% | Held | 2 | SEC ↗ ×2 |
| 32 | Bank Of America Corp /De/ | 381.81K | -28.2% | $95.70M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 33 | Royal Bank Of Canada | 377.55K | -15.1% | $94.63M | 0.0% | ▼ Trim | 2 | SEC ↗ ×9 |
| 34 | Barclays Plc | 349.10K | +145.5% | $87.50M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 35 | Citadel Advisors ✦ | 323.59K | +31.7% | $81.10M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 36 | Bnp Paribas Financial Markets | 313.59K | +47.0% | $78.60M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 37 | Jane Street Group, Llc | 305.13K | +38.9% | $76.48M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 38 | UBS Group AG | 275.51K | +10.0% | $69.05M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 39 | AQR Capital Management ✦ | 266.94K | -48.4% | $66.51M | 0.0% | ▼ Trim | 8 | SEC ↗ ×11 |
| 40 | Rhumbline Advisers | 259.23K | -4.8% | $64.97M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 41 | Wellington Management ✦ | 248.64K | +1467.7% | $62.32M | 0.0% | ▲ Add | 8 | SEC ↗ ×8 |
| 42 | Envestnet Asset Management Inc | 235.52K | -5.1% | $59.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | California Public Employees… | 232.92K | +88.8% | $58.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Two Sigma Investments ✦ | 225.63K | +61.2% | $56.55M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 45 | Swiss National Bank | 211.16K | +7.2% | $52.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Renaissance Technologies ✦ | 209.66K | +100.2% | $52.55M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 47 | Federated Hermes, Inc. | 208.16K | +4.0% | $52.17M | 0.1% | ▲ Add | 2 | SEC ↗ ×4 |
| 48 | Holocene Advisors, LP | 203.62K | +59.4% | $51.04M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 49 | Bamco Inc /Ny/ | 199.75K | -24.1% | $50.07M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 50 | Russell Investments Group, Ltd. | 195.33K | +13.5% | $48.91M | 0.1% | ▲ Add | 2 | SEC ↗ ×16 |
| 51 | Mitsubishi UFJ Asset Management… | 182.09K | +8.9% | $45.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Neuberger Berman Group LLC | 181.85K | -57.5% | $45.58M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 53 | Allianz Asset Management GmbH | 176.56K | +628.1% | $44.25M | 0.1% | ▲ Add | 2 | SEC ↗ ×4 |
| 54 | Nomura Asset Management Co Ltd | 174.26K | +12.8% | $43.68M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 55 | Sumitomo Mitsui Trust Group, Inc. | 172.78K | -1.9% | $43.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | Quantinno Capital Management LP | 161.48K | +53.2% | $40.47M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 57 | Point72 Asset Management ✦ | 159.35K | -32.2% | $39.94M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 58 | Hsbc Holdings Plc | 156.90K | -46.6% | $39.26M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 59 | Citigroup Inc | 142.43K | -2.2% | $35.70M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 60 | Assenagon Asset Management S.A. | 137.56K | -45.2% | $34.48M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 61 | Canada Pension Plan Investment Board | 135.37K | +18.3% | $33.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 62 | Schroder Investment Management Group | 135.01K | n/a | $33.10M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 63 | Bank Of Montreal /Can/ | 127.17K | -4.1% | $31.87M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 64 | Ninety One UK Ltd | 119.23K | +17.0% | $29.88M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 65 | California State Teachers… | 110.63K | -2.6% | $27.73M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 66 | Royal London Asset Management Ltd | 99.55K | +7.7% | $24.95M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 67 | Wells Fargo & Company/Mn | 96.97K | -9.1% | $24.31M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 68 | Prudential Financial Inc | 96.41K | -40.9% | $24.16M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 69 | Alliancebernstein L.P. | 87.30K | +9.1% | $24.02M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Principal Financial Group Inc | 85.36K | -0.3% | $21.40M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 71 | Creative Planning | 83.37K | +4.9% | $20.90M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Raymond James Financial Inc | 82.56K | -19.4% | $20.69M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 73 | Man Group plc | 79.65K | +18.3% | $19.96M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 74 | Asset Management One Co., Ltd. | 74.80K | -40.2% | $18.74M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 75 | Aberdeen Group plc | 69.08K | +5.2% | $17.31M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 76 | Credit Agricole S A | 66.63K | -25.1% | $16.70M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 77 | Korea Investment CORP | 66.00K | -40.5% | $16.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | LPL Financial LLC | 65.85K | -10.8% | $16.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 79 | State Board Of Administration Of… | 65.71K | 0.0% | $16.47M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Tudor Investment Corp Et Al | 65.42K | +60.8% | $16.40M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 81 | Fifth Third Bancorp | 65.35K | +594.3% | $16.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Bank Of Nova Scotia | 65.32K | +337.8% | $16.37M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | Adage Capital Partners ✦ | 64.21K | -1.1% | $16.09M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 84 | Aviva Plc | 63.39K | +2.8% | $15.89M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 85 | Blair William & Co/Il | 62.47K | +0.2% | $15.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Corient Private Wealth LP | 59.33K | -62.3% | $14.84M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 87 | Baird Financial Group, Inc. | 57.29K | -60.8% | $14.36M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 88 | Healthcare Of Ontario Pension Plan… | 50.52K | +1676.4% | $12.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | National Bank Of Canada /Fi/ | 49.64K | +4.0% | $12.44M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 90 | Universal- Beteiligungs- und… | 48.26K | +9.8% | $12.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Manufacturers Life Insurance… | 47.36K | -32.8% | $11.87M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | BNP Paribas Asset Management… | 44.93K | -3.9% | $11.26M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Pictet Asset Management Holding SA | 44.19K | -70.9% | $11.08M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | New York State Common Retirement… | 41.55K | 0.0% | $10.41M | 0.0% | Held | 2 | SEC ↗ |
| 95 | Nordea Investment Management Ab | 40.68K | +172.1% | $10.05M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 96 | Ameriprise Financial Inc | 39.26K | +86.5% | $9.81M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 97 | State Of Wisconsin Investment Board | 38.53K | -22.4% | $9.66M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | Stifel Financial Corp | 36.37K | +4.1% | $9.12M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 99 | Chevy Chase Trust Holdings, LLC | 35.44K | -2.8% | $8.88M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 100 | Mitsubishi UFJ Trust & Banking Corp | 34.07K | -1.2% | $8.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Capital Research Global… | $151.39M | 0.0% |
Exited
| Norges Bank | $272.04M | was 0.0% |
| Hrt Financial Lp | $34.99M | was 0.1% |
| Jennison Associates Llc | $15.02M | was 0.0% |
| Parnassus Investments, Llc | $9.46M | was 0.0% |
| Nomura Holdings Inc | $227,541 | was 0.0% |
| Walleye Trading LLC | $182,418 | was 0.0% |
| Group One Trading Llc | $108,130 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 749 holders, 70.07M shares, $16.37B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 15
Favorite Annette F
Officer · 2.52K sh · $921,260
Sep 14
Favorite Annette F
Officer · 2.50K sh · $887,500
Sep 11
Favorite Annette F
Officer · 2.50K sh · $862,500
Sep 08
Favorite Annette F
Officer · 2.82K sh · $960,062
Sep 08
Favorite Annette F
Officer · 2.82K sh · $960,403
Sep 08
Favorite Annette F
Officer · 2.50K sh · $852,025
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 06
SC 13G: FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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