West Pharmaceutical Services, Inc.
US ˙ NYSE ˙ US9553061055

SecurityWST / West Pharmaceutical Services, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership65,346 shares
Latest Disclosed Value $ 16,378,451
Fifth Third Bancorp reports 594.28% increase in ownership of WST / West Pharmaceutical Services, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 65,346 shares of West Pharmaceutical Services, Inc. (US:WST) valued at $16,378,321 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 9,412 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of 594.28% during the quarter. The current value of the position is $20,735,593 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)
2026-05-01 2026-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 65,346 55,934 594.28 16,378 532.60 0.0299
2026-02-02 2025-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,412 -1,943 -17.11 2,590 -13.06 0.0082
2025-11-07 2025-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 11,355 -986 -7.99 2,979 10.30 0.0095
2025-07-15 2025-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 12,341 -122 -0.98 2,700 -3.23 0.0093
2025-04-15 2025-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 12,463 1,511 13.80 2,790 -22.22 0.0106
2025-01-21 2024-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,952 218 2.03 3,587 11.36 0.0130
2024-10-17 2024-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,734 272 2.60 3,222 -6.53 0.0117
2024-07-22 2024-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,462 303 2.98 3,446 -14.28 0.0131
2024-04-23 2024-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,159 189 1.90 4,020 14.53 0.0157
2024-01-19 2023-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,970 216 2.21 3,511 -4.07 0.0149
2023-10-31 2023-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,754 288 3.04 3,660 1.08 0.0170
2023-07-26 2023-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,466 -222 -2.29 3,620 7.87 0.0160
2023-04-24 2023-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,688 422 4.55 3,357 53.94 0.0156
2023-01-25 2022-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,266 -241 -2.53 2,181 -6.80 0.0105
2022-10-25 2022-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,507 703 7.99 2,339 -12.13 0.0122
2022-08-04 2022-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,804 -298 -3.27 2,662 -28.79 0.0129
2022-04-19 2022-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 9,102 178 1.99 3,738 -10.68 0.0153
2022-02-01 2021-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,924 425 5.00 4,185 15.99 0.0163
2021-10-15 2021-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,499 556 7.00 3,608 26.51 0.0157
2021-08-06 2021-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,943 -398 -4.77 2,852 21.36 0.0125
2021-05-07 2021-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 8,341 722 9.48 2,350 8.85 0.0109
2021-02-16 2020-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 7,619 1,996 35.50 2,159 39.65 0.0106
2020-11-09 2020-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 5,623 363 6.90 1,546 29.37 0.0085
2020-08-05 2020-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 5,260 -31 -0.59 1,195 48.26 0.0072
2020-05-05 2020-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 5,291 813 18.16 806 19.76 0.0058
2020-02-14 2019-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 4,478 592 15.23 673 22.14 0.0037
2019-11-14 2019-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 3,886 586 17.76 551 33.41 0.0033
2019-08-07 2019-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 3,300 550 20.00 413 36.30 0.0025
2019-05-14 2019-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,750 325 13.40 303 27.31 0.0019
2019-02-14 2018-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,425 90 3.85 238 -17.36 0.0017
2018-11-14 2018-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,335 0 0.00 288 24.14 0.0018
2018-08-14 2018-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,335 0 0.00 232 12.62 0.0016
2018-05-15 2018-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,335 -76 -3.15 206 -13.45 0.0014
2018-02-14 2017-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,411 76 3.25 238 5.78 0.0016
2017-11-14 2017-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,335 0 0.00 225 1.81 0.0016
2017-08-11 2017-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,335 335 16.75 221 35.58 0.0016
2017-05-12 2017-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,000 0 0.00 163 -4.12 0.0012
2017-02-13 2016-12-31 13F/A-1 WEST PHARMACEUTICAL SVSC COM 955306105 2,000 -600 -23.08 170 -12.37 0.0014
2017-02-09 2016-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,600 0 194 0.0016
2016-11-10 2016-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,600 -190 -6.81 194 -8.49 0.0016
2016-08-11 2016-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,790 -68 -2.38 212 7.07 0.0018
2016-05-13 2016-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 2,858 2,424 558.53 198 661.54 0.0017
2016-02-16 2015-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 434 -19 -4.19 26 4.00 0.0002
2015-11-13 2015-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 453 155 52.01 25 47.06 0.0002
2015-08-14 2015-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 298 2 0.68 17 -5.56 0.0001
2015-05-14 2015-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 296 128 76.19 18 100.00 0.0002
2015-02-13 2014-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 168 -232 -58.00 9 -55.00 0.0001
2014-02-14 2013-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 400 0 0.00 20 25.00 0.0002
2013-11-14 2013-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 400 200 100.00 16 14.29 0.0002
2013-08-14 2013-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 200 200 14 0.0001
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.