| 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% | $1,222,288,672 | 6,066,852 | BlackRock, Inc. | 31 Mar 2025 |
As of 30 Sep 2025, 746 institutional investors reported holding 68,660,523 shares of WEST PHARMACEUTICAL SERVICES INC - Common Stock (WST). This represents 95% 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% | 9,704,948 | +4.2% | 0.04% | $2,545,899,009 |
| BlackRock, Inc. | 9% | 6,455,861 | -2.3% | 0.03% | $1,693,566,022 |
| STATE STREET CORP | 4.5% | 3,207,911 | -2% | 0.03% | $841,531,293 |
| Bank of New York Mellon Corp | 4% | 2,904,709 | -9.4% | 0.14% | $761,992,358 |
| Artisan Partners Limited Partnership | 3.9% | 2,770,920 | +22% | 1% | $726,895,444 |
| BROWN ADVISORY INC | 3.5% | 2,498,082 | -17% | 0.85% | $655,329,708 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.6% | 1,857,124 | +1.3% | 0.03% | $485,197,258 |
| MORGAN STANLEY | 2.1% | 1,478,629 | -0.44% | 0.02% | $387,889,624 |
| VAN ECK ASSOCIATES CORP | 2% | 1,424,879 | -4.1% | 0.35% | $373,789,000 |
| APG Asset Management N.V. | 2% | 1,413,698 | -15% | 0.89% | $315,621,614 |
| Durable Capital Partners LP | 1.6% | 1,172,583 | +13% | 2.3% | $307,603,698 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.4% | 1,038,094 | -1.3% | 0.66% | $272,323,326 |
| GENERATION INVESTMENT MANAGEMENT LLP | 1.4% | 976,014 | -16% | 1.7% | $256,037,753 |
| FRANKLIN RESOURCES INC | 1.3% | 965,931 | -13% | 0.06% | $253,392,682 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 1.2% | 885,236 | -15% | 0.05% | $232,223,960 |
| Invesco Ltd. | 1.2% | 881,285 | -8.2% | 0.04% | $231,187,494 |
| Findlay Park Partners LLP | 1.1% | 802,106 | -1.8% | 2.2% | $210,416,467 |
| NORTHERN TRUST CORP | 1% | 744,891 | -0.67% | 0.02% | $195,407,256 |
| CITADEL ADVISORS LLC | 1% | 727,537 | +465% | 0.15% | $190,854,781 |
| T. Rowe Price Investment Management, Inc. | 0.97% | 701,415 | +50% | 0.11% | $184,003,000 |
| Point72 Asset Management, L.P. | 0.92% | 659,253 | +94% | 0.38% | $172,942,016 |
| ProShare Advisors LLC | 0.85% | 612,620 | -17% | 0.34% | $160,708,605 |
| TD Asset Management Inc | 0.84% | 606,332 | +26% | 0.13% | $159,059,073 |
| ROYAL BANK OF CANADA | 0.78% | 559,775 | +2.9% | 0.03% | $146,846,000 |
| AQR CAPITAL MANAGEMENT LLC | 0.76% | 545,879 | +420% | 0.09% | $142,949,255 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 1,492,564 | $407,169,310 | -$3,947,704 | $275.14 | 114 |
| 2025 Q3 | 68,660,523 | $17,958,123,664 | -$186,326,960 | $262.33 | 746 |
| 2025 Q2 | 70,038,330 | $15,270,649,646 | +$210,523,947 | $218.80 | 724 |
| 2025 Q1 | 68,781,560 | $15,368,679,288 | -$323,502,271 | $223.88 | 699 |
| 2024 Q4 | 69,650,381 | $22,801,911,569 | +$487,991,876 | $327.56 | 733 |
| 2024 Q3 | 67,626,281 | $20,228,293,870 | -$216,209,584 | $300.16 | 722 |
| 2024 Q2 | 68,348,443 | $22,454,791,550 | +$203,409,565 | $329.39 | 766 |
| 2024 Q1 | 67,709,439 | $26,709,457,585 | -$227,433,059 | $395.71 | 772 |
| 2023 Q4 | 622,954 | $219,354,367 | -$17,847,876 | $352.12 | 8 |
| 2023 Q3 | 66,961,663 | $25,129,114,916 | +$166,241,652 | $375.21 | 742 |
| 2023 Q2 | 67,226,025 | $25,621,581,378 | -$805,330,933 | $382.47 | 715 |
| 2023 Q1 | 65,847,042 | $22,747,483,408 | +$353,737,179 | $346.47 | 672 |
| 2022 Q4 | 68,973,266 | $16,237,439,222 | +$15,801,582 | $235.35 | 614 |
| 2022 Q3 | 68,071,838 | $16,777,906,026 | -$360,225,113 | $246.08 | 605 |
| 2022 Q2 | 68,095,150 | $20,485,039,471 | -$169,571,363 | $302.37 | 630 |
| 2022 Q1 | 67,888,556 | $27,778,893,094 | -$2,815,994 | $410.71 | 685 |
| 2021 Q4 | 67,727,308 | $31,581,885,563 | +$703,952,861 | $469.01 | 711 |
| 2021 Q3 | 66,075,548 | $27,908,699,644 | -$686,245,852 | $424.54 | 659 |
| 2021 Q2 | 68,379,380 | $24,416,195,362 | +$165,122,717 | $359.10 | 624 |
| 2021 Q1 | 67,688,546 | $18,973,802,811 | +$70,217,298 | $281.78 | 577 |
| 2020 Q4 | 68,620,081 | $19,377,529,524 | +$199,394,101 | $283.31 | 574 |
| 2020 Q3 | 66,060,530 | $18,137,648,891 | -$198,196,422 | $274.90 | 558 |
| 2020 Q2 | 67,875,190 | $15,519,259,071 | +$456,073,916 | $227.17 | 508 |
| 2020 Q1 | 66,623,780 | $10,146,648,962 | -$43,431,012 | $152.25 | 451 |
| 2019 Q4 | 67,505,257 | $10,146,035,323 | +$89,925,160 | $150.33 | 434 |
| 2019 Q3 | 67,070,687 | $9,511,258,981 | -$50,961,217 | $141.82 | 395 |
| 2019 Q2 | 67,209,694 | $8,408,602,591 | +$89,368,343 | $125.15 | 361 |
| 2019 Q1 | 67,782,438 | $7,469,776,358 | -$154,328,537 | $110.20 | 368 |
| 2018 Q4 | 69,260,364 | $6,789,369,291 | +$36,993,006 | $98.03 | 341 |
| 2018 Q3 | 68,682,576 | $8,479,650,317 | +$105,273,098 | $123.47 | 345 |
| 2018 Q2 | 68,983,756 | $6,848,752,817 | -$60,450,395 | $99.29 | 312 |
| 2018 Q1 | 70,245,901 | $6,201,570,320 | +$35,298,392 | $88.29 | 321 |
| 2017 Q4 | 69,681,834 | $6,874,987,375 | -$50,678,482 | $98.67 | 330 |
| 2017 Q3 | 69,779,866 | $6,715,625,721 | +$236,113,782 | $96.26 | 297 |
| 2017 Q2 | 67,249,642 | $6,356,373,261 | +$125,373,531 | $94.52 | 308 |
| 2017 Q1 | 65,741,391 | $5,366,348,783 | +$388,444,808 | $81.61 | 285 |
| 2016 Q4 | 66,245,233 | $5,619,402,395 | +$85,996,345 | $84.83 | 280 |
| 2016 Q3 | 66,219,744 | $4,931,309,183 | +$54,113,324 | $74.50 | 270 |
| 2016 Q2 | 65,274,788 | $4,955,763,425 | -$129,961,431 | $75.88 | 281 |
| 2016 Q1 | 65,235,997 | $4,524,977,733 | +$73,919,237 | $69.32 | 239 |
| 2015 Q4 | 65,586,553 | $3,949,291,648 | -$8,118,514 | $60.22 | 242 |
| 2015 Q3 | 67,516,660 | $3,654,013,595 | +$3,552,146 | $54.12 | 245 |
| 2015 Q2 | 66,577,244 | $3,866,684,772 | +$17,938,823 | $58.08 | 216 |
| 2015 Q1 | 67,156,266 | $4,039,842,972 | +$107,556,054 | $60.21 | 211 |
| 2014 Q4 | 65,563,551 | $3,490,060,017 | -$15,363,280 | $53.24 | 221 |
| 2014 Q3 | 66,150,209 | $2,960,879,964 | +$86,227,110 | $44.76 | 212 |
| 2014 Q2 | 64,479,693 | $2,719,712,820 | +$34,736,013 | $42.18 | 220 |
| 2014 Q1 | 63,617,382 | $2,802,353,916 | +$37,288,118 | $44.05 | 222 |