Citable ownership snapshot
WST's latest 13F holder table lists Durable Capital Partners as the largest holder in this view with 1,573,119 shares valued at $352.19M.
| Holder | Report date | Value | Portfolio weight |
|---|---|---|---|
| Durable Capital Partners | Dec 31, 2024 | $352.19M | 3.1% |
| Bill & Melinda Gates Foundation Trust | Jun 30, 2026 | $159.58M | 0.5% |
| Citadel Advisors | Jun 30, 2026 | $144.92M | 0.0% |
| Viking Global Investors | Mar 31, 2026 | $104.50M | 0.3% |
| Point72 Asset Management | Jun 30, 2026 | $102.31M | 0.1% |
| AQR Capital Management | Jun 30, 2026 | $20.33M | 0.0% |
| Balyasny Asset Management | Jun 30, 2026 | $16.43M | 0.0% |
| Renaissance Technologies | Jun 30, 2026 | $11.09M | 0.0% |
Source: SEC EDGAR 13F filings; period Dec 31, 2024; filed May 15, 2025.
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