West Pharmaceutical Services, Inc.
MX ˙ BMV ˙ US9553061055
SecurityMX:WST / West Pharmaceutical Services, Inc.
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership156,895 shares
Latest Disclosed Value $ 39,262,459
Hsbc Holdings Plc reports 6.82% increase in ownership of WST / West Pharmaceutical Services, Inc.

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 156,895 shares of West Pharmaceutical Services, Inc. (MX:WST) valued at $39,262,459 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 146,872 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of 6.82% during the quarter.

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)
2026-04-30 2026-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 156,895 10,023 6.82 39,262 -2.88 0.0027
2026-03-20 2025-12-31 13F/A-1 WEST PHARMACEUTICAL SVSC COM 955306105 146,872 27,745 23.29 40,425 29.22 0.0022
2026-03-06 2025-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 146,872 27,745 23.29 40,425 29.22 0.0019
2025-11-13 2025-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 119,127 -13,131 -9.93 31,283 8.29 0.0173
2025-08-13 2025-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 132,258 -5,060 -3.68 28,889 -5.85 0.0174
2025-05-14 2025-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 137,318 -3,458 -2.46 30,684 -33.46 0.0190
2025-02-14 2024-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 140,776 -3,729 -2.58 46,114 6.06 0.0268
2024-11-14 2024-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 144,505 -42,213 -22.61 43,480 -29.56 0.0253
2024-08-12 2024-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 186,718 19,561 11.70 61,727 -6.64 0.0377
2024-05-15 2024-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 167,157 28,689 20.72 66,120 35.63 0.0448
2024-02-12 2023-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 138,468 39,392 39.76 48,750 30.94 0.0425
2023-11-13 2023-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 99,076 -5,036 -4.84 37,231 -6.63 0.0387
2023-08-11 2023-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 104,112 -18,603 -15.16 39,873 -6.24 0.0406
2023-05-15 2023-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 122,715 -140,000 -53.29 42,527 -31.11 0.0509
2023-02-14 2022-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 262,715 39,199 17.54 61,736 11.42 0.0710
2022-11-14 2022-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 223,516 29,882 15.43 55,407 -5.23 0.0904
2022-08-11 2022-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 193,634 59,712 44.59 58,467 5.56 0.0816
2022-05-16 2022-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 133,922 -3,054 -2.23 55,387 -13.82 0.0673
2022-02-11 2021-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 136,976 15,305 12.58 64,269 23.65 0.0593
2021-11-12 2021-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 121,671 1,285 1.07 51,976 19.99 0.0523
2021-08-13 2021-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 120,386 -3,530 -2.85 43,317 24.33 0.0462
2021-05-14 2021-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 123,916 -13,277 -9.68 34,839 -10.15 0.0410
2021-02-25 2020-12-31 13F/A-1 WEST PHARMACEUTICAL SVSC COM 955306105 137,193 13,023 10.49 38,776 13.45 0.0517
2021-02-12 2020-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 137,193 13,023 38,776 9,206.8477
2020-11-12 2020-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 124,170 15,348 14.10 34,179 38.26 0.0545
2020-08-14 2020-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 108,822 60,391 124.69 24,721 234.97 0.0469
2020-05-15 2020-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 48,431 30,793 174.58 7,380 175.89 0.0171
2020-02-14 2019-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 17,638 -2,500 -12.41 2,675 -6.34 0.0046
2019-11-14 2019-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 20,138 6,323 45.77 2,856 65.18 0.0053
2019-08-13 2019-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 13,815 -18,049 -56.64 1,729 -50.75 0.0033
2019-05-15 2019-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 31,864 24,682 343.66 3,511 398.01 0.0064
2019-02-13 2018-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,182 -3,224 -30.98 705 -45.14 0.0013
2018-11-13 2018-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,406 867 9.09 1,285 35.55 0.0021
2018-08-10 2018-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,539 1,229 14.79 948 29.33 0.0017
2018-05-11 2018-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,310 -950 -10.26 733 -19.63 0.0011
2018-02-14 2017-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,260 711 8.32 912 10.95 0.0013
2017-11-14 2017-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,549 1,106 14.86 822 16.76 0.0013
2017-08-14 2017-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,443 890 13.58 704 31.34 0.0013
2017-05-15 2017-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 6,553 154 2.41 536 -1.29 0.0011
2017-02-09 2016-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 6,399 23 0.36 543 14.32 0.0013
2016-11-14 2016-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 6,376 -1,517 -19.22 475 -20.70 0.0012
2016-08-12 2016-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,893 -1,035 -11.59 599 -3.23 0.0016
2016-05-13 2016-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,928 -882 -8.99 619 4.92 0.0017
2016-02-12 2015-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,810 93 0.96 590 12.38 0.0014
2015-11-12 2015-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,717 2,126 28.01 525 18.78 0.0013
2015-08-13 2015-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,591 220 2.98 442 -0.45 0.0009
2015-05-14 2015-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,371 2,616 55.02 444 74.80 0.0009
2015-02-13 2014-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 4,755 -98 -2.02 254 17.05 0.0005
2014-11-18 2014-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 4,853 4,853 217 0.0005
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.