West Pharmaceutical Services, Inc.
MX ˙ BMV ˙ US9553061055
SecurityMX:WST / West Pharmaceutical Services, Inc.
InstitutionV-Square Quantitative Management LLC
Latest Disclosed Ownership2,688 shares
Latest Disclosed Value $ 673,720
V-Square Quantitative Management LLC reports 15.02% increase in ownership of WST / West Pharmaceutical Services, Inc.

On April 27, 2026 - V-Square Quantitative Management LLC filed a 13F-HR form disclosing ownership of 2,688 shares of West Pharmaceutical Services, Inc. (MX:WST) valued at $673,720 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 2,337 shares of West Pharmaceutical Services, Inc.. This represents a change in shares of 15.02% 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)
2026-04-27 2026-03-31 13F West Pharmaceutical Services I A 955306105 2,688 351 15.02 674 4.67 0.0712
2026-01-22 2025-12-31 13F West Pharmaceutical Services I A 955306105 2,337 2,337 643 0.0668
2025-11-12 2025-09-30 13F West Pharmaceutical Services I A 955306105 0 -2,486 -100.00 0 -100.00
2025-07-17 2025-06-30 13F West Pharmaceutical Services I A 955306105 2,486 120 5.07 544 2.65 0.0728
2025-05-13 2025-03-31 13F West Pharmaceutical Services I A 955306105 2,366 283 13.59 530 -22.43 0.0773
2025-01-30 2024-12-31 13F West Pharmaceutical Services I A 955306105 2,083 -3 -0.14 682 8.95 0.0967
2024-10-17 2024-09-30 13F West Pharmaceutical Services I A 955306105 2,086 146 7.53 626 -2.03 0.0920
2024-07-16 2024-06-30 13F West Pharmaceutical Services I A 955306105 1,940 334 20.80 639 0.63 0.1036
2024-04-24 2024-03-31 13F West Pharmaceutical Services I A 955306105 1,606 302 23.16 636 38.34 0.0889
2024-02-21 2023-12-31 13F West Pharmaceutical Services I A 955306105 1,304 322 32.79 459 24.73 0.0812
2023-11-13 2023-09-30 13F West Pharmaceutical Services I A 955306105 982 541 122.68 368 119.05 0.1622
2023-07-26 2023-06-30 13F West Pharmaceutical Services I A 955306105 441 441 169 0.1230
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.