3 hedge funds and family offices disclose a BIO position in their latest SEC 13F filing — combined $167.5M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Steven Romick | First Pacific Advisors LP | 401,457 | $121.6M | 1.60% | 2025-12-31 |
| 2 | Mason Hawkins | Southeastern Asset Management, Inc. | 162,804 | $45.4M | 2.23% | 2026-03-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 1,684 | $469K | 0.00% | 2026-03-31 |
As of the latest 13F window, 3 tracked superinvestors hold BIO. The largest disclosed position is Steven Romick at $121.6M (1.6% 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 BIO, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
3 hedge funds and family offices disclose a BIO position in their latest SEC 13F filing — combined $167.5M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Steven Romick | First Pacific Advisors LP | 401,457 | $121.6M | 1.60% | 2025-12-31 |
| 2 | Mason Hawkins | Southeastern Asset Management, Inc. | 162,804 | $45.4M | 2.23% | 2026-03-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 1,684 | $469K | 0.00% | 2026-03-31 |
As of the latest 13F window, 3 tracked superinvestors hold BIO. The largest disclosed position is Steven Romick at $121.6M (1.6% 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 BIO, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
