4 hedge funds and family offices disclose a BBIO position in their latest SEC 13F filing — combined $901.7M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Viking Global | Viking Global Investors LP | 11,842,434 | $879.4M | 2.46% | 2026-03-31 |
| 2 | Ray Dalio | Bridgewater Associates LP | 259,459 | $19.3M | 0.09% | 2026-03-31 |
| 3 | Polen Capital | Polen Capital Management LLC | 38,241 | $2.9M | 0.01% | 2025-12-31 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 539 | $41K | 0.01% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold BBIO. The largest disclosed position is Viking Global at $879.4M (2.5% 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 BBIO, 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 BBIO position in their latest SEC 13F filing — combined $901.7M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Viking Global | Viking Global Investors LP | 11,842,434 | $879.4M | 2.46% | 2026-03-31 |
| 2 | Ray Dalio | Bridgewater Associates LP | 259,459 | $19.3M | 0.09% | 2026-03-31 |
| 3 | Polen Capital | Polen Capital Management LLC | 38,241 | $2.9M | 0.01% | 2025-12-31 |
| 4 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 539 | $41K | 0.01% | 2025-12-31 |
As of the latest 13F window, 4 tracked superinvestors hold BBIO. The largest disclosed position is Viking Global at $879.4M (2.5% 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 BBIO, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
