| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | 13% | $2,545,899,009 | 9,704,948 | The Vanguard Group | 30 Sep 2025 | |||
| BlackRock, Inc. | 8.4% | $1,311,168,054 | 6,066,852 | BlackRock, Inc. | 31 Mar 2025 |
As of 31 Dec 2025, 789 institutional investors reported holding 69,263,585 shares of WEST PHARMACEUTICAL SERVICES INC - Common Stock (WST). This represents 96% of the company’s total 71,941,794 outstanding shares.
The largest institutional shareholders of WEST PHARMACEUTICAL SERVICES INC - Common Stock (WST) together control 63% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 13% | 9,539,173 | -1.7% | 0.04% | $2,624,608,060 |
| BlackRock, Inc. | 9.2% | 6,599,735 | +2.2% | 0.03% | $1,815,851,080 |
| STATE STREET CORP | 4.5% | 3,252,020 | +1.4% | 0.03% | $894,760,783 |
| Artisan Partners Limited Partnership | 4% | 2,850,401 | +2.9% | 1.2% | $784,259,419 |
| Bank of New York Mellon Corp | 3.7% | 2,662,035 | -8.4% | 0.13% | $732,432,196 |
| BROWN ADVISORY INC | 2.7% | 1,943,606 | -22% | 0.75% | $534,770,720 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 1,869,086 | +0.64% | 0.03% | $512,249,725 |
| GENERATION INVESTMENT MANAGEMENT LLP | 2.2% | 1,561,869 | +60% | 3% | $429,732,636 |
| MORGAN STANLEY | 2.1% | 1,531,858 | +3.6% | 0.03% | $421,476,429 |
| APG Asset Management N.V. | 1.7% | 1,199,005 | -15% | 0.8% | $280,892,533 |
| T. Rowe Price Investment Management, Inc. | 1.6% | 1,174,962 | +68% | 0.2% | $323,280,000 |
| Longview Partners (Guernsey) LTD | 1.6% | 1,131,026 | +221% | 3.2% | $311,190,494 |
| NORGES BANK | 1.4% | 988,737 | 0.03% | $272,041,098 | |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.3% | 955,149 | -8% | 0.71% | $262,799,913 |
| Invesco Ltd. | 1.3% | 908,625 | +3.1% | 0.04% | $249,999,085 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.3% | 905,656 | +2.3% | 0.05% | $249,182,191 |
| FRANKLIN RESOURCES INC | 1.2% | 888,252 | -8% | 0.06% | $244,393,655 |
| NORTHERN TRUST CORP | 1% | 726,512 | -2.5% | 0.03% | $199,892,511 |
| VAN ECK ASSOCIATES CORP | 1% | 716,087 | -50% | 0.16% | $197,025,000 |
| Findlay Park Partners LLP | 0.93% | 666,926 | -17% | 2.3% | $183,498,020 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 0.89% | 639,561 | +56% | 0.68% | $175,968,814 |
| TD Asset Management Inc | 0.84% | 605,726 | -0.1% | 0.13% | $166,659,452 |
| SEI INVESTMENTS CO | 0.82% | 591,757 | +12% | 0.16% | $162,817,387 |
| ProShare Advisors LLC | 0.82% | 586,847 | -4.2% | 0.28% | $161,465,083 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.75% | 542,803 | +3% | 0.02% | $149,346,817 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 69,263,585 | $19,006,541,876 | +$173,377,584 | $275.14 | 789 |
| 2025 Q3 | 68,659,593 | $17,957,879,659 | -$183,856,964 | $262.33 | 749 |
| 2025 Q2 | 70,038,330 | $15,270,649,646 | +$210,523,894 | $218.80 | 724 |
| 2025 Q1 | 68,953,513 | $15,407,189,292 | -$318,348,909 | $223.88 | 703 |
| 2024 Q4 | 69,774,879 | $22,842,891,962 | +$206,715,816 | $327.56 | 741 |
| 2024 Q3 | 68,502,767 | $20,491,378,046 | +$105,304,444 | $300.16 | 721 |
| 2024 Q2 | 68,264,555 | $22,427,067,892 | -$85,436,872 | $329.39 | 765 |
| 2024 Q1 | 68,476,899 | $27,013,149,916 | -$61,599,634 | $395.71 | 773 |
| 2023 Q4 | 68,654,469 | $24,095,915,369 | -$40,197,518 | $352.12 | 776 |
| 2023 Q3 | 68,617,905 | $25,750,554,481 | +$188,033,862 | $375.21 | 753 |
| 2023 Q2 | 68,109,208 | $25,959,372,992 | -$536,833,981 | $382.47 | 727 |
| 2023 Q1 | 69,530,466 | $24,023,693,976 | +$337,155,239 | $346.47 | 685 |
| 2022 Q4 | 69,130,558 | $16,274,465,898 | +$84,036,083 | $235.35 | 627 |
| 2022 Q3 | 68,591,681 | $16,905,826,463 | -$426,987,902 | $246.08 | 621 |
| 2022 Q2 | 68,252,580 | $20,598,288,583 | -$313,220,081 | $302.37 | 645 |
| 2022 Q1 | 68,987,302 | $28,230,153,122 | +$12,831,022 | $410.71 | 703 |
| 2021 Q4 | 68,897,668 | $32,124,610,400 | +$628,245,813 | $469.01 | 719 |
| 2021 Q3 | 67,352,622 | $28,445,255,423 | -$757,416,674 | $424.54 | 660 |
| 2021 Q2 | 69,185,010 | $24,703,501,155 | +$168,106,325 | $359.10 | 632 |
| 2021 Q1 | 68,655,696 | $19,249,105,816 | -$1,483,079 | $281.78 | 581 |
| 2020 Q4 | 68,772,292 | $19,420,583,256 | +$181,864,375 | $283.31 | 582 |
| 2020 Q3 | 68,011,060 | $18,672,970,021 | -$206,990,921 | $274.90 | 565 |
| 2020 Q2 | 68,729,649 | $15,713,367,193 | +$430,300,021 | $227.17 | 516 |
| 2020 Q1 | 67,095,723 | $10,218,503,618 | -$57,849,907 | $152.25 | 458 |
| 2019 Q4 | 67,516,262 | $10,147,693,254 | +$89,380,655 | $150.33 | 438 |
| 2019 Q3 | 67,073,748 | $9,511,691,556 | -$48,072,443 | $141.82 | 399 |
| 2019 Q2 | 67,459,734 | $8,439,980,479 | +$21,201,788 | $125.15 | 366 |
| 2019 Q1 | 67,782,706 | $7,469,804,358 | -$147,754,418 | $110.20 | 369 |
| 2018 Q4 | 69,304,554 | $6,793,717,291 | +$30,353,474 | $98.03 | 345 |
| 2018 Q3 | 68,762,507 | $8,489,518,317 | +$105,177,114 | $123.47 | 347 |
| 2018 Q2 | 69,014,206 | $6,851,742,817 | -$115,598,904 | $99.29 | 316 |
| 2018 Q1 | 70,245,901 | $6,201,570,320 | +$38,472,059 | $88.29 | 321 |
| 2017 Q4 | 69,798,001 | $6,886,660,375 | -$49,215,782 | $98.67 | 333 |
| 2017 Q3 | 69,787,442 | $6,716,535,721 | +$236,119,441 | $96.26 | 299 |
| 2017 Q2 | 67,340,267 | $6,364,939,261 | +$134,188,764 | $94.52 | 309 |
| 2017 Q1 | 66,678,304 | $5,442,811,783 | +$392,806,753 | $81.61 | 289 |
| 2016 Q4 | 67,087,906 | $5,690,874,395 | +$81,927,181 | $84.83 | 284 |
| 2016 Q3 | 66,232,350 | $4,932,244,183 | +$58,975,958 | $74.50 | 273 |
| 2016 Q2 | 66,741,578 | $5,067,062,425 | -$136,060,448 | $75.88 | 284 |
| 2016 Q1 | 68,346,963 | $4,740,630,733 | +$68,000,266 | $69.32 | 246 |
| 2015 Q4 | 67,388,697 | $4,057,814,648 | -$10,518,430 | $60.22 | 245 |
| 2015 Q3 | 67,592,322 | $3,658,107,595 | +$15,378,346 | $54.12 | 247 |
| 2015 Q2 | 67,515,045 | $3,921,152,772 | +$8,866,404 | $58.08 | 217 |
| 2015 Q1 | 67,356,211 | $4,051,881,972 | +$106,839,580 | $60.21 | 212 |
| 2014 Q4 | 65,784,192 | $3,501,807,017 | -$17,047,109 | $53.24 | 224 |
| 2014 Q3 | 66,150,209 | $2,960,879,964 | +$86,227,818 | $44.76 | 212 |
| 2014 Q2 | 64,480,946 | $2,719,765,820 | +$33,968,152 | $42.18 | 221 |
| 2014 Q1 | 63,620,215 | $2,802,477,916 | +$26,493,263 | $44.05 | 223 |