Which hedge funds own BIO? BIO RAD LABS INC, Q2 2026 13F holders
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7 of the hedge funds tracked by WhaleCreep disclosed a position in BIO (BIO RAD LABS INC) in their Q2 2026 13F filings, worth $64.6m in total. The largest holder by portfolio weight is Hound Partners at 0.8% of its book. 2 exited: Bridgewater Associates, Southeastern Asset Management.
7tracked managers holding
0opened this quarter
2exited this quarter
Which hedge funds hold BIO? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Hound Partners | Q2 2026 | 0.8% | $6.6m | 22,481 | -77% | reduced |
| Brevan Howard Capital Management | Q2 2026 | 0.1% | $4.0m | 13,718 | 254% | added |
| Tudor Investment | Q2 2026 | 0.0% | $7.3m | 25,000 | 384% | added |
| Millennium Management | Q2 2026 | 0.0% | $17.6m | 59,895 | 1718% | added |
| Citadel Advisors | Q2 2026 | 0.0% | $17.9m | 60,819 | -59% | reduced |
| Marshall Wace | Q2 2026 | 0.0% | $5.6m | 18,980 | -43% | reduced |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $5.7m | 19,256 | 136% | added |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Bridgewater Associates | 0.1% | $469.4k |
| Southeastern Asset Management | 93.8% | $16.3m |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| Caxton Associates | Q4 2024 | 0.0% |
How has hedge fund ownership of BIO changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 7 | $64.6m |
| Q1 2026 | 9 | $100.4m |
| Q4 2025 | 4 | $58.8m |
| Q3 2025 | 7 | $85.2m |
| Q2 2025 | 5 | $109.8m |
| Q1 2025 | 5 | $108.0m |
| Q4 2024 | 7 | $194.8m |
| Q3 2024 | 5 | $209.5m |
| Q2 2024 | 4 | $120.6m |
| Q1 2024 | 4 | $231.4m |
| Q4 2023 | 7 | $271.2m |
| Q3 2023 | 8 | $267.7m |
| Q2 2023 | 9 | $408.8m |
| Q1 2023 | 9 | $354.9m |
| Q4 2022 | 9 | $184.1m |
| Q3 2022 | 7 | $155.3m |
Counts every tracked manager that disclosed BIO in that quarter's filing, including managers that have since stopped filing.