West Pharmaceutical Services, Inc.
DE ˙ DB ˙ GB00BLGXWY71
269,50 € ↑3,00 (1,13%)
2026-06-04
AKTIENPREIS
SecurityDE:WPS / West Pharmaceutical Services, Inc.
InstitutionRiverbridge Partners Llc
Latest Disclosed Ownership261,442 shares
Latest Disclosed Value $ 65,527,942
Riverbridge Partners Llc reports 17.94% decrease in ownership of WPS / West Pharmaceutical Services, Inc.

On April 17, 2026 - Riverbridge Partners Llc filed a 13F-HR form disclosing ownership of 261,442 shares of West Pharmaceutical Services, Inc. (DE:WPS) valued at $55,817,867 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 318,613 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of -17.94% during the quarter. The current value of the position is $70,458,619 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-17 2026-03-31 13F West Pharmaceutical Services COM 955306105 261,442 -57,171 -17.94 65,528 -25.25 1.6037
2026-01-13 2025-12-31 13F West Pharmaceutical Services COM 955306105 318,613 -43,927 -12.12 87,663 -7.83 1.6434
2025-10-14 2025-09-30 13F West Pharmaceutical Services COM 955306105 362,540 -20,980 -5.47 95,105 13.34 1.6048
2025-07-15 2025-06-30 13F West Pharmaceutical Services COM 955306105 383,520 -24,886 -6.09 83,914 -8.22 1.3501
2025-04-21 2025-03-31 13F West Pharmaceutical Services COM 955306105 408,406 -26,887 -6.18 91,434 -35.87 1.4668
2025-01-17 2024-12-31 13F West Pharmaceutical Services COM 955306105 435,293 -21,456 -4.70 142,585 4.00 1.9458
2024-10-15 2024-09-30 13F West Pharmaceutical Services COM 955306105 456,749 -30,187 -6.20 137,098 -14.52 1.8312
2024-07-17 2024-06-30 13F West Pharmaceutical Services COM 955306105 486,936 -14,955 -2.98 160,392 -19.24 2.1795
2024-04-26 2024-03-31 13F West Pharmaceutical Services COM 955306105 501,891 -14,132 -2.74 198,603 9.30 2.4232
2024-02-15 2023-12-31 13F/A-1 West Pharmaceutical Services COM 955306105 516,023 -7,996 -1.53 181,702 -7.59 2.2700
2024-01-24 2023-12-31 13F West Pharmaceutical Services COM 955306105 469,245 -8,295 165,231 2.1956
2024-02-15 2023-09-30 13F/A-1 West Pharmaceutical Services COM 955306105 524,019 -39,484 -7.01 196,617 -8.77 2.6833
2023-10-16 2023-09-30 13F West Pharmaceutical Services COM 955306105 477,540 -85,963 179,178 2.5995
2023-07-25 2023-06-30 13F West Pharmaceutical Services COM 955306105 563,503 22,613 4.18 215,523 15.01 2.7170
2023-04-21 2023-03-31 13F West Pharmaceutical Services COM 955306105 540,890 33,504 6.60 187,402 157,380.67 2.6270
2023-01-11 2022-12-31 13F West Pharmaceutical Services COM 955306105 507,386 -22,125 -4.18 119 -99.91 1.7928
2022-10-26 2022-09-30 13F West Pharmaceutical Services COM 955306105 529,511 65,985 14.24 130,302 -7.03 1.9348
2022-08-29 2022-06-30 13F/A-1 West Pharmaceutical Services COM 955306105 463,526 -92,868 -16.69 140,156 -38.67 2.2434
2022-07-11 2022-06-30 13F West Pharmaceutical Services COM 955306105 541,832 -14,562 163,834 2.3438
2022-04-20 2022-03-31 13F West Pharmaceutical Services COM 955306105 556,394 -61,815 -10.00 228,517 -21.19 2.5825
2022-01-14 2021-12-31 13F West Pharmaceutical Services COM 955306105 618,209 24 0.00 289,946 10.48 2.8675
2021-10-26 2021-09-30 13F West Pharmaceutical Services COM 955306105 618,185 1,433 0.23 262,444 18.50 2.6312
2021-07-26 2021-06-30 13F West Pharmaceutical Services COM 955306105 616,752 24,628 4.16 221,476 32.74 2.2489
2021-04-21 2021-03-31 13F West Pharmaceutical Services COM 955306105 592,124 27,808 4.93 166,849 4.36 1.9004
2021-01-22 2020-12-31 13F West Pharmaceutical Services COM 955306105 564,316 -23,904 -4.06 159,876 -1.13 1.7661
2020-10-08 2020-09-30 13F West Pharmaceutical Services COM 955306105 588,220 -17,461 -2.88 161,702 17.52 2.2568
2020-07-08 2020-06-30 13F West Pharmaceutical Services COM 955306105 605,681 21,679 3.71 137,593 54.75 2.1595
2020-04-13 2020-03-31 13F West Pharmaceutical Services COM 955306105 584,002 -4,653 -0.79 88,914 0.48 1.8613
2020-01-14 2019-12-31 13F West Pharmaceutical Services COM 955306105 588,655 -3,494 -0.59 88,493 5.38 1.5888
2019-10-11 2019-09-30 13F West Pharmaceutical Services COM 955306105 592,149 10,153 1.74 83,979 15.30 1.5913
2019-07-10 2019-06-30 13F West Pharmaceutical Services COM 955306105 581,996 -25,441 -4.19 72,837 8.81 1.3779
2019-04-04 2019-03-31 13F West Pharmaceutical Services COM 955306105 607,437 -12,026 -1.94 66,940 10.23 1.3000
2019-01-14 2018-12-31 13F West Pharmaceutical Services COM 955306105 619,463 -28,517 -4.40 60,726 -24.10 1.2663
2018-10-03 2018-09-30 13F West Pharmaceutical Services COM 955306105 647,980 177,637 37.77 80,006 71.32 1.3376
2018-07-03 2018-06-30 13F West Pharmaceutical Services COM 955306105 470,343 -18,863 -3.86 46,700 8.12 0.8418
2018-04-03 2018-03-31 13F West Pharmaceutical Services COM 955306105 489,206 -2,092 -0.43 43,192 -10.90 0.7887
2018-01-24 2017-12-31 13F West Pharmaceutical Services COM 955306105 491,298 -30,506 -5.85 48,476 -3.49 0.9374
2017-11-01 2017-09-30 13F West Pharmaceutical Services COM 955306105 521,804 10,381 2.03 50,229 3.91 0.9893
2017-07-24 2017-06-30 13F West Pharmaceutical Services COM 955306105 511,423 511,423 48,340 0.9244
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.