Security record · archived quarter
WST
West Pharmaceutical Services, Inc. · Healthcare · Medical - Instruments & Supplies
162Tracked holders
+3Δ holders
53.70MShares held
$14.74BReported value
+5New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +1.9% ·
share flow -0.9% ·
net new positions +2.5%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| 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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 9.54M | -1.7% | $2.62B | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 6.60M | +2.2% | $1.82B | 0.0% | ▲ Add | 3 | SEC ↗ ×21 |
| 3 | State Street Global Advisors ✦ (passive) | 3.25M | +1.4% | $894.76M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | Artisan Partners Limited Partnership | 2.85M | n/a | $784.26M | 1.2% | n/c | 1 | SEC ↗ |
| 5 | Bank of New York Mellon Corp | 2.66M | n/a | $732.43M | 0.1% | n/c | 1 | SEC ↗ ×20 |
| 6 | Brown Advisory Inc | 1.94M | n/a | $534.77M | 0.7% | n/c | 1 | SEC ↗ ×4 |
| 7 | Geode Capital Management ✦ (passive) | 1.87M | +0.6% | $512.25M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 8 | Morgan Stanley ✦ | 1.53M | +3.6% | $421.48M | 0.0% | ▲ Add | 2 | SEC ↗ ×19 |
| 9 | Norges Bank ✦ (passive) | 988.74K | New | $272.04M | 0.0% | New | 1 | SEC ↗ |
| 10 | Kayne Anderson Rudnick Investment… | 955.15K | n/a | $262.80M | 0.7% | n/c | 1 | SEC ↗ ×2 |
| 11 | Invesco Ltd. | 908.62K | n/a | $250.00M | 0.0% | n/c | 1 | SEC ↗ ×13 |
| 12 | UBS AM, a distinct business unit of… | 905.66K | n/a | $249.18M | 0.1% | n/c | 1 | SEC ↗ ×11 |
| 13 | Franklin Resources Inc | 888.25K | n/a | $244.39M | 0.1% | n/c | 1 | SEC ↗ ×8 |
| 14 | Northern Trust Corp | 726.51K | n/a | $199.89M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 15 | Td Asset Management Inc | 605.73K | n/a | $166.66M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 16 | Sei Investments Co | 591.76K | n/a | $162.82M | 0.2% | n/c | 1 | SEC ↗ ×2 |
| 17 | ProShare Advisors LLC | 586.85K | n/a | $161.47M | 0.3% | n/c | 1 | SEC ↗ |
| 18 | Charles Schwab Investment… | 542.80K | n/a | $149.35M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Bank Of America Corp /De/ | 531.85K | n/a | $146.33M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 20 | AQR Capital Management ✦ | 517.63K | -5.2% | $142.42M | 0.1% | ▼ Trim | 7 | SEC ↗ ×8 |
| 21 | Legal & General Group Plc | 502.69K | n/a | $138.31M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 22 | American Century Companies Inc | 445.48K | n/a | $122.57M | 0.1% | n/c | 1 | SEC ↗ |
| 23 | Royal Bank Of Canada | 444.86K | n/a | $122.40M | 0.0% | n/c | 1 | SEC ↗ ×11 |
| 24 | Gates Foundation Trust ✦ | 444.50K | 0.0% | $122.30M | 0.3% | Held | 4 | SEC ↗ |
| 25 | Goldman Sachs Group ✦ | 440.05K | +5.2% | $121.07M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 26 | Dimensional Fund Advisors Lp | 437.36K | n/a | $120.34M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 27 | Neuberger Berman Group LLC | 427.51K | n/a | $117.63M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 28 | Nuveen, LLC | 404.32K | n/a | $111.25M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 29 | State Farm Mutual Automobile… | 388.24K | n/a | $106.82M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 30 | Deutsche Bank Ag\ | 372.88K | n/a | $102.59M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 31 | Amundi | 347.43K | n/a | $95.59M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 32 | T. Rowe Price ✦ | 339.27K | +196.2% | $93.35M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 33 | Arrowstreet Capital ✦ | 300.40K | +36.0% | $82.65M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 34 | Viking Global Investors ✦ | 295.03K | New | $81.17M | 0.2% | New | 1 | SEC ↗ |
| 35 | Hsbc Holdings Plc | 293.74K | n/a | $80.85M | 0.0% | n/c | 1 | SEC ↗ ×16 |
| 36 | JPMorgan Chase ✦ | 274.96K | -42.0% | $75.65M | 0.0% | ▼ Trim | 2 | SEC ↗ ×14 |
| 37 | Rhumbline Advisers | 272.19K | n/a | $74.89M | 0.1% | n/c | 1 | SEC ↗ |
| 38 | Bamco Inc /Ny/ | 263.19K | n/a | $72.41M | 0.2% | n/c | 1 | SEC ↗ |
| 39 | Assenagon Asset Management S.A. | 251.01K | n/a | $69.06M | 0.1% | n/c | 1 | SEC ↗ |
| 40 | UBS Group AG | 250.40K | n/a | $68.89M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 41 | Envestnet Asset Management Inc | 248.11K | n/a | $68.27M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Citadel Advisors ✦ | 245.64K | -66.2% | $67.59M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 43 | Point72 Asset Management ✦ | 235.04K | -64.3% | $64.67M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 44 | Jane Street Group, Llc | 219.75K | n/a | $60.46M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 45 | Bnp Paribas Financial Markets | 213.33K | n/a | $58.70M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Federated Hermes, Inc. | 200.07K | n/a | $55.05M | 0.1% | n/c | 1 | SEC ↗ ×4 |
| 47 | Swiss National Bank | 197.04K | n/a | $54.21M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Sumitomo Mitsui Trust Group, Inc. | 176.12K | n/a | $48.46M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Russell Investments Group, Ltd. | 172.10K | n/a | $47.37M | 0.1% | n/c | 1 | SEC ↗ ×16 |
| 50 | Mitsubishi UFJ Asset Management… | 167.20K | n/a | $46.21M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Prudential Financial Inc | 163.09K | n/a | $44.87M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 52 | Nomura Asset Management Co Ltd | 154.50K | n/a | $42.51M | 0.1% | n/c | 1 | SEC ↗ |
| 53 | Pictet Asset Management Holding SA | 152.00K | n/a | $41.82M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Baird Financial Group, Inc. | 146.21K | n/a | $40.23M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 55 | Citigroup Inc | 145.66K | n/a | $40.08M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 56 | Barclays Plc | 142.19K | n/a | $39.12M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 57 | Two Sigma Investments ✦ | 139.94K | +38.3% | $38.50M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 58 | Bank Of Montreal /Can/ | 132.65K | n/a | $36.50M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 59 | Holocene Advisors, LP | 127.72K | n/a | $35.14M | 0.1% | n/c | 1 | SEC ↗ |
| 60 | Hrt Financial Lp | 127.19K | n/a | $34.99M | 0.1% | n/c | 1 | SEC ↗ |
| 61 | Asset Management One Co., Ltd. | 125.00K | n/a | $34.44M | 0.1% | n/c | 1 | SEC ↗ |
| 62 | California Public Employees… | 123.34K | n/a | $33.93M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Canada Pension Plan Investment Board | 114.41K | n/a | $31.48M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | California State Teachers… | 113.57K | n/a | $31.25M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Korea Investment CORP | 110.97K | n/a | $30.53M | 0.1% | n/c | 1 | SEC ↗ |
| 66 | Millennium Management ✦ | 110.39K | -64.7% | $30.37M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 67 | Fidelity (FMR) ✦ | 109.65K | +147.2% | $30.17M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 68 | Wells Fargo & Company/Mn | 106.71K | n/a | $29.36M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 69 | Quantinno Capital Management LP | 105.41K | n/a | $29.00M | 0.1% | n/c | 1 | SEC ↗ |
| 70 | Renaissance Technologies ✦ | 104.74K | New | $28.82M | 0.0% | New | 1 | SEC ↗ |
| 71 | Raymond James Financial Inc | 102.45K | n/a | $28.19M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 72 | Mackenzie Financial Corp | 101.91K | n/a | $28.16M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Ninety One UK Ltd | 101.89K | n/a | $28.03M | 0.1% | n/c | 1 | SEC ↗ |
| 74 | Qube Research & Technologies Ltd | 96.03K | n/a | $26.42M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Royal London Asset Management Ltd | 92.41K | n/a | $25.43M | 0.1% | n/c | 1 | SEC ↗ |
| 76 | Ensign Peak Advisors, Inc | 89.74K | n/a | $24.69M | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Credit Agricole S A | 88.99K | n/a | $24.48M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 78 | Principal Financial Group Inc | 85.63K | n/a | $23.56M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 79 | Alliancebernstein L.P. | 80.04K | n/a | $22.02M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Creative Planning | 79.50K | n/a | $21.87M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 81 | LPL Financial LLC | 73.84K | n/a | $20.32M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Manufacturers Life Insurance… | 70.45K | n/a | $19.38M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Man Group plc | 67.33K | n/a | $18.52M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 84 | State Board Of Administration Of… | 65.74K | n/a | $18.09M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Aberdeen Group plc | 65.63K | n/a | $18.06M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 86 | Adage Capital Partners ✦ | 64.91K | +16.9% | $17.86M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 87 | Blair William & Co/Il | 62.32K | n/a | $17.15M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Aviva Plc | 61.69K | n/a | $16.97M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Corient Private Wealth LP | 157.19K | n/a | $15.52M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 90 | Jennison Associates Llc | 54.59K | n/a | $15.02M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | FIL Ltd | 52.34K | n/a | $14.40M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | State Of Wisconsin Investment Board | 49.62K | n/a | $13.65M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | National Bank Of Canada /Fi/ | 47.74K | n/a | $13.13M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 94 | BNP Paribas Asset Management… | 46.73K | n/a | $12.86M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Universal- Beteiligungs- und… | 43.96K | n/a | $12.14M | 0.0% | n/c | 1 | SEC ↗ |
| 96 | New York State Common Retirement… | 41.55K | n/a | $11.43M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Tudor Investment Corp Et Al | 40.67K | n/a | $11.19M | 0.1% | n/c | 1 | SEC ↗ |
| 98 | Chevy Chase Trust Holdings, LLC | 36.48K | n/a | $10.04M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 99 | Marshall Wace ✦ | 35.62K | +4353.1% | $9.80M | 0.0% | ▲ Add | 7 | SEC ↗ ×3 |
| 100 | Stifel Financial Corp | 34.93K | n/a | $9.61M | 0.0% | n/c | 1 | SEC ↗ ×4 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $272.04M | 0.0% |
| Viking Global Investors | $81.17M | 0.2% |
| Renaissance Technologies | $28.82M | 0.0% |
Exited
| D. E. Shaw & Co. | $33.35M | 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: Q4 2025 ·
Methodology ·
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