Bio-Rad Laboratories shares owned by Brian McDonald
Quarter-by-quarter ownership of Bio-Rad Laboratories (BIO) shares owned by Brian McDonald
from 13F filings
Historical chart of Brian McDonald investment in Bio-Rad Laboratories
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All positions including Bio-Rad Laboratories held by Brian McDonald consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in Bio-Rad Laboratories by Brian McDonald
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $5.4M | 19k | 280.52 |
| 2025-06-30 | $3.5M | 15k | 241.23 |
| 2025-03-31 | $3.8M | 16k | 243.57 |
| 2024-12-31 | $20M | 60k | 328.53 |
| 2024-09-30 | $19M | 55k | 334.56 |
| 2024-06-30 | $13M | 46k | 273.14 |
| 2024-03-31 | $13M | 37k | 345.87 |
| 2023-09-30 | $11M | 31k | 358.46 |
| 2022-12-31 | $12M | 27k | 454.90 |
| 2022-09-30 | $9.3M | 25k | 377.93 |
| 2022-06-30 | $12M | 24k | 490.07 |
| 2022-03-31 | $11M | 20k | 561.99 |
| 2021-12-31 | $11M | 19k | 574.92 |
| 2021-09-30 | $16M | 21k | 753.58 |
| 2021-06-30 | $20M | 26k | 776.26 |
| 2021-03-31 | $14M | 22k | 640.41 |
| 2020-12-31 | $12M | 19k | 594.84 |
| 2020-09-30 | $7.2M | 12k | 581.70 |
| 2020-06-30 | $4.7M | 9.0k | 520.30 |
| 2020-03-31 | $8.0M | 19k | 433.02 |
| 2019-12-31 | $7.0M | 19k | 367.11 |
| 2019-09-30 | $6.3M | 19k | 340.64 |
| 2019-06-30 | $5.2M | 17k | 308.50 |
| 2019-03-31 | $5.6M | 18k | 307.61 |
| 2018-12-31 | $4.4M | 18k | 239.30 |
| 2018-09-30 | $5.0M | 18k | 276.34 |
| 2018-06-30 | $4.8M | 16k | 302.59 |
| 2018-03-31 | $4.3M | 16k | 262.25 |
| 2017-12-31 | $4.2M | 16k | 254.42 |
| 2017-09-30 | $3.5M | 16k | 219.01 |
| 2017-06-30 | $3.9M | 17k | 235.11 |
| 2017-03-31 | $3.6M | 17k | 217.80 |
| 2016-12-31 | $3.0M | 16k | 188.47 |
| 2016-09-30 | $2.4M | 15k | 161.22 |
| 2016-06-30 | $2.3M | 15k | 153.76 |
| 2016-03-31 | $2.0M | 14k | 140.15 |
| 2015-12-31 | $2.0M | 15k | 130.52 |
| 2015-09-30 | $2.0M | 15k | 134.33 |
| 2015-06-30 | $4.5M | 30k | 150.58 |
| 2015-03-31 | $2.0M | 15k | 135.16 |
| 2014-12-31 | $3.6M | 30k | 120.54 |
| 2014-09-30 | $1.8M | 16k | 113.39 |
| 2014-06-30 | $1.8M | 15k | 119.71 |
| 2014-03-31 | $2.1M | 17k | 128.12 |
| 2013-12-31 | $2.0M | 16k | 123.61 |
| 2013-09-30 | $2.1M | 18k | 117.56 |
| 2013-06-30 | $1.9M | 17k | 112.22 |
| 2012-12-31 | $1.7M | 17k | 105.05 |
| 2012-09-30 | $1.8M | 17k | 106.73 |
| 2012-06-30 | $1.7M | 17k | 100.02 |
| 2012-03-31 | $124k | 1.2k | 103.48 |
| 2011-12-31 | $1.6M | 17k | 96.07 |
| 2011-09-30 | $1.5M | 17k | 90.76 |
| 2011-06-30 | $2.0M | 17k | 119.38 |
| 2011-03-31 | $6.0k | 46 | 130.43 |