West Pharmaceutical Services, Inc.
US ˙ NYSE ˙ US9553061055

SecurityWST / West Pharmaceutical Services, Inc.
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Silvercrest Asset Management Group Llc closes position in WST / West Pharmaceutical Services, Inc.

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 0 shares of West Pharmaceutical Services, Inc. (US:WST) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 953 shares of West Pharmaceutical Services, Inc.. The current value of the position is $0 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)
2026-05-15 2026-03-31 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 0 -100.00 0
2026-02-17 2025-12-31 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 953 -10 -1.04 262 3.97 0.0018
2025-11-14 2025-09-30 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 963 -212 -18.04 253 -1.95 0.0017
2025-08-14 2025-06-30 13F WEST PHARMACEUTICAL SVSC COM 955306105 1,175 -9,103 -88.57 257 -88.83 0.0017
2025-05-15 2025-03-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 10,278 -2,331 -18.49 2,301 -44.29 0.0165
2025-02-14 2024-12-31 13F WEST PHARMACEUTICAL SVSC COM 955306105 12,609 617 5.15 4,130 14.75 0.0276
2024-11-14 2024-09-30 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 11,992 -85 -0.70 3,600 -9.53 0.0245
2024-08-15 2024-06-30 13F/A-1 WEST PHARMACEUTICAL SVSC INC COM COM 955306105 12,077 474 4.09 3,978 -13.35 0.0273
2024-08-14 2024-06-30 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 24,154 12,551 7,956 0.0182
2024-05-15 2024-03-31 13F WEST PHARMACEUTICAL SVSC INC COM COM 955306105 11,603 1,375 13.44 4,591 27.49 0.0311
2024-02-14 2023-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 10,228 960 10.36 3,601 3.57 0.0255
2023-11-14 2023-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 9,268 -1,129 -10.86 3,477 -12.55 0.0264
2023-08-14 2023-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 10,397 -867 -7.70 3,977 1.90 0.0284
2023-05-15 2023-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 11,264 119 1.07 3,903 48.82 0.0296
2023-02-14 2022-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 11,145 393 3.66 2,623 -0.91 0.0202
2022-11-14 2022-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 10,752 -408 -3.66 2,646 -21.58 0.0218
2022-08-15 2022-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 11,160 3,374 43.33 3,374 5.50 0.0256
2022-05-16 2022-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,786 1,466 23.20 3,198 7.89 0.0208
2022-02-14 2021-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,320 -1,361 -17.72 2,964 -9.11 0.0188
2021-11-15 2021-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,681 105 1.39 3,261 19.85 0.0220
2021-08-16 2021-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,576 1,146 17.82 2,721 50.17 0.0178
2021-05-17 2021-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,430 215 3.46 1,812 2.90 0.0122
2021-02-16 2020-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,215 0 0.00 1,761 3.04 0.0129
2020-11-16 2020-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,215 -85 -1.35 1,709 19.43 0.0147
2020-08-14 2020-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,300 85 1.37 1,431 51.27 0.0127
2020-05-15 2020-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,215 0 0.00 946 1.28 0.0101
2020-02-14 2019-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 6,215 -930 -13.02 934 -7.80 0.0072
2019-11-14 2019-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,145 0 0.00 1,013 13.31 0.0084
2019-08-14 2019-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,145 0 0.00 894 13.60 0.0084
2019-05-15 2019-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 7,145 -1,915 -21.14 787 -11.37 0.0077
2019-02-14 2018-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 9,060 0 0.00 888 -20.64 0.0098
2018-11-14 2018-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 9,060 0 0.00 1,119 24.33 0.0102
2018-08-14 2018-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 9,060 90 1.00 900 13.64 0.0084
2018-05-15 2018-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 0 0.00 792 -10.51 0.0077
2018-02-14 2017-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 -18 -0.20 885 2.31 0.0082
2017-11-14 2017-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,988 18 0.20 865 2.00 0.0086
2017-08-14 2017-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 0 0.00 848 15.85 0.0091
2017-05-15 2017-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 0 0.00 732 -3.81 0.0078
2017-02-14 2016-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 0 0.00 761 13.92 0.0085
2016-11-14 2016-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 8,970 -177 -1.94 668 -3.75 0.0080
2016-08-15 2016-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 9,147 -4,160 -31.26 694 -24.73 0.0088
2016-05-16 2016-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 13,307 177 1.35 922 16.56 0.0127
2016-02-16 2015-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 13,130 -90 -0.68 791 10.63 0.0110
2015-11-16 2015-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 13,220 0 0.00 715 -6.90 0.0109
2015-08-14 2015-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 13,220 0 0.00 768 -3.52 0.0103
2015-05-15 2015-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 13,220 -5,130 -27.96 796 -18.53 0.0113
2015-02-17 2014-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 18,350 -29,650 -61.77 977 -54.52 0.0142
2014-11-14 2014-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 48,000 -362,229 -88.30 2,148 -87.59 0.0332
2014-08-14 2014-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 410,229 -278,184 -40.41 17,303 -42.94 0.2595
2014-05-15 2014-03-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 688,413 -270,089 -28.18 30,324 -35.51 0.4826
2014-02-14 2013-12-31 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 958,502 27,396 2.94 47,024 22.73 0.7800
2013-11-14 2013-09-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 931,106 489,200 110.70 38,315 23.41 0.7363
2013-08-14 2013-06-30 13F WEST PHARMACEUTICAL SVSC INC C COM 955306105 441,906 441,906 31,048 0.6554
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.