4 hedge funds and family offices disclose a WST position in their latest SEC 13F filing — combined $112.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Viking Global | Viking Global Investors LP | 416,948 | $104.5M | 0.29% | 2026-03-31 |
| 2 | Ray Dalio | Bridgewater Associates LP | 23,161 | $5.8M | 0.03% | 2026-03-31 |
| 3 | Mark Hillman | Hillman Capital Management Inc | 8,906 | $2.5M | 1.54% | 2025-12-31 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 78 | $21K | 0.00% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold WST. The largest disclosed position is Viking Global at $104.5M (0.3% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying WST, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
4 hedge funds and family offices disclose a WST position in their latest SEC 13F filing — combined $112.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Viking Global | Viking Global Investors LP | 416,948 | $104.5M | 0.29% | 2026-03-31 |
| 2 | Ray Dalio | Bridgewater Associates LP | 23,161 | $5.8M | 0.03% | 2026-03-31 |
| 3 | Mark Hillman | Hillman Capital Management Inc | 8,906 | $2.5M | 1.54% | 2025-12-31 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 78 | $21K | 0.00% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold WST. The largest disclosed position is Viking Global at $104.5M (0.3% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying WST, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
