West Pharmaceutical Services, Inc.
MX ˙ BMV ˙ US9553061055
SecurityMX:WST / West Pharmaceutical Services, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership676 shares
Latest Disclosed Value $ 169,435
Signaturefd, Llc reports 20.38% decrease in ownership of WST / West Pharmaceutical Services, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 676 shares of West Pharmaceutical Services, Inc. (MX:WST) valued at $169,435 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 849 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of -20.38% 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)
2026-04-07 2026-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 676 -173 -20.38 169 -27.47 0.0026
2026-01-20 2025-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 849 33 4.04 234 8.88 0.0036
2025-10-21 2025-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 816 82 11.17 214 33.75 0.0034
2025-07-16 2025-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 734 -385 -34.41 161 -36.00 0.0027
2025-05-02 2025-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 1,119 139 14.18 251 -22.12 0.0047
2025-02-10 2024-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 980 88 9.87 321 20.22 0.0061
2024-10-21 2024-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 892 -46 -4.90 268 -13.31 0.0051
2024-07-29 2024-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 938 -68 -6.76 309 -22.61 0.0063
2024-05-03 2024-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 1,006 90 9.83 398 23.60 0.0084
2024-02-01 2023-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 916 -62 -6.34 323 -12.02 0.0074
2023-11-03 2023-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 978 74 8.19 367 6.09 0.0096
2023-08-01 2023-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 904 5 0.56 346 10.93 0.0088
2023-04-28 2023-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 899 222 32.79 311 95.60 0.0085
2023-01-30 2022-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 677 146 27.50 159 21.37 0.0047
2022-11-08 2022-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 531 -249 -31.92 131 -44.49 0.0045
2022-08-10 2022-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 780 -43 -5.22 236 -30.18 0.0080
2022-05-02 2022-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 823 6 0.73 338 -11.75 0.0102
2022-01-25 2021-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 817 207 33.93 383 47.88 0.0118
2021-10-28 2021-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 610 139 29.51 259 53.25 0.0089
2021-07-26 2021-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 471 131 38.53 169 76.04 0.0067
2021-04-30 2021-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 340 45 15.25 96 14.29 0.0042
2021-02-11 2020-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 295 63 27.16 84 31.25 0.0040
2020-11-03 2020-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 232 83 55.70 64 88.24 0.0034
2020-07-30 2020-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 149 48 47.52 34 126.67 0.0021
2020-04-23 2020-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 101 77 320.83 15 275.00 0.0013
2020-02-05 2019-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 24 24 4 0.0003
2016-05-12 2016-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 0 -22 -100.00 0 -100.00
2016-01-22 2015-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 22 0 0.00 1 0.00 0.0002
2015-10-23 2015-09-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 22 22 1 0.0002
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.