West Pharmaceutical Services, Inc.
US ˙ NYSE ˙ US9553061055

SecurityWST / West Pharmaceutical Services, Inc.
InstitutionArkadios Wealth Advisors
Latest Disclosed Ownership1,914 shares
Latest Disclosed Value $ 479,920
Arkadios Wealth Advisors reports 10.10% decrease in ownership of WST / West Pharmaceutical Services, Inc.

On May 18, 2026 - Arkadios Wealth Advisors filed a 13F-HR form disclosing ownership of 1,914 shares of West Pharmaceutical Services, Inc. (US:WST) valued at $479,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,129 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of -10.10% during the quarter. The current value of the position is $601,953 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-18 2026-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,914 -215 -10.10 480 -18.12 0.0051
2026-02-13 2025-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 2,129 -105 -4.70 586 -0.17 0.0114
2025-10-29 2025-09-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 2,234 969 76.60 586 112.32 0.0141
2025-08-04 2025-06-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,265 10 0.80 277 -1.78 0.0082
2025-05-08 2025-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,255 -9 -0.71 281 -32.13 0.0106
2025-01-15 2024-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,264 66 5.51 414 15.32 0.0226
2024-10-24 2024-09-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,198 211 21.38 360 10.46 0.0204
2024-07-29 2024-06-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 987 8 0.82 325 -16.02 0.0219
2024-04-30 2024-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 979 -8 -0.81 388 11.53 0.0300
2024-01-24 2023-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 987 -258 -20.72 348 -25.70 0.0294
2023-10-13 2023-09-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,245 -48 -3.71 467 -5.47 0.0443
2023-07-26 2023-06-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,293 -112 -7.97 494 1.65 0.0575
2023-05-02 2023-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,405 228 19.37 487 75.45 0.0580
2023-01-11 2022-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,177 -212 -15.26 277 0.0367
2022-10-21 2022-09-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,389 104 8.09 0 0.0518
2022-07-14 2022-06-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,285 335 35.26 0 0.0579
2022-05-02 2022-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 950 -575 -37.70 0 0.0511
2022-02-03 2021-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,525 -363 -19.23 1 0.0947
2021-10-19 2021-09-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 1,888 -855 -31.17 1 0.1155
2021-07-28 2021-06-30 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 2,743 2,643 2,643.00 1 0.1200
2021-04-26 2021-03-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 100 0 0.00 0 0.0046
2021-02-09 2020-12-31 13F WEST PHARMACEUTICAL SVSC INC COM Stock 955306105 100 100 0 0.0059
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.