Marshall Wace, LLP
- SEC CIK
- 0001318757
- Latest filing
- Aug 13, 2026
WST holding history
West Pharmaceutical Services Inc in every 13F filed by Marshall Wace, LLP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
WST overviewAll 13F holders of WSTFull Q2 2026 holdings
- Shares (Q2 2026)
- 83,578
- Value
- $30.0M
- % of portfolio
- <0.1%
- Quarters held
- 20
- Since Q2 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 83,578 | $30.0M | <0.1% | +82,005+5,213.3% | Added | Holders |
| Q1 2026 | 1,573 | $394.3K | <0.1% | −34,052−95.6% | Reduced | Holders |
| Q4 2025 | 35,625 | $9.80M | <0.1% | +34,825+4,353.1% | Added | Holders |
| Q3 2025 | 800 | $209.9K | <0.1% | −61,726−98.7% | Reduced | Holders |
| Q2 2025 | 62,526 | $13.7M | <0.1% | −103,573−62.4% | Reduced | Holders |
| Q1 2025 | 166,099 | $37.2M | <0.1% | −61,166−26.9% | Reduced | Holders |
| Q4 2024 | 227,265 | $74.4M | 0.1% | +99,006+77.2% | Added | Holders |
| Q3 2024 | 128,259 | $38.5M | <0.1% | +80,280+167.3% | Added | Holders |
| Q2 2024 | 47,979 | $15.8M | <0.1% | −327,699−87.2% | Reduced | Holders |
| Q1 2024 | 375,678 | $148.7M | 0.2% | +312,531+494.9% | Added | Holders |
| Q4 2023 | 63,147 | $22.2M | <0.1% | −90,614−58.9% | Reduced | Holders |
| Q3 2023 | 153,761 | $57.7M | 0.1% | +114,994+296.6% | Added | Holders |
| Q2 2023 | 38,767 | $14.8M | <0.1% | −19,272−33.2% | Reduced | Holders |
| Q1 2023 | 58,039 | $20.1M | <0.1% | +56,983+5,396.1% | Added | Holders |
| Q4 2022 | 1,056 | $248.5K | <0.1% | −112,121−99.1% | Reduced | Holders |
| Q3 2022 | 113,177 | $27.8M | 0.1% | +87,634+343.1% | Added | Holders |
| Q2 2022 | 25,543 | $7.72M | <0.1% | +25,543 | New | Holders |
| Q1 2022 | 0 | $0 | 0.0% | −199−100.0% | Sold out | Holders |
| Q4 2021 | 199 | $93.0K | <0.1% | −248,900−99.9% | Reduced | Holders |
| Q3 2021 | 249,099 | $105.8M | 0.5% | +93,783+60.4% | Added | Holders |
| Q2 2021 | 155,316 | $55.8M | 0.3% | +155,316 | New | Holders |