Bio-Rad Laboratories shares owned by Westport Asset Management
Quarter-by-quarter ownership of Bio-Rad Laboratories (BIO) shares owned by Westport Asset Management
from 13F filings
Historical chart of Westport Asset Management investment in Bio-Rad Laboratories
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Quarterly reported holdings in Bio-Rad Laboratories by Westport Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $841k | 3.0k | 280.39 |
| 2025-06-30 | $724k | 3.0k | 241.32 |
| 2025-03-31 | $731k | 3.0k | 243.56 |
| 2024-12-31 | $986k | 3.0k | 328.51 |
| 2024-09-30 | $1.0M | 3.0k | 334.58 |
| 2024-06-30 | $819k | 3.0k | 273.11 |
| 2024-03-31 | $692k | 2.0k | 345.87 |
| 2023-12-31 | $646k | 2.0k | 322.89 |
| 2023-09-30 | $717k | 2.0k | 358.45 |
| 2023-06-30 | $758k | 2.0k | 379.12 |
| 2023-03-31 | $719k | 1.5k | 479.02 |
| 2022-12-31 | $631k | 1.5k | 420.49 |
| 2022-09-30 | $626k | 1.5k | 417.33 |
| 2022-06-30 | $743k | 1.5k | 495.33 |
| 2022-03-31 | $1.1M | 1.5k | 755.33 |
| 2021-12-31 | $1.1M | 1.5k | 755.33 |
| 2021-09-30 | $1.1M | 1.5k | 746.00 |
| 2021-06-30 | $966k | 1.5k | 644.00 |
| 2021-03-31 | $857k | 1.5k | 571.33 |
| 2020-12-31 | $874k | 1.5k | 582.67 |
| 2020-09-30 | $773k | 1.5k | 515.33 |
| 2020-06-30 | $677k | 1.5k | 451.33 |
| 2020-03-31 | $526k | 1.5k | 350.67 |