Mesa Laboratories shares owned by Brian McDonald
Quarter-by-quarter ownership of Mesa Laboratories (MLAB) shares owned by Brian McDonald
from 13F filings
Historical chart of Brian McDonald investment in Mesa Laboratories
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Quarterly reported holdings in Mesa Laboratories by Brian McDonald
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $6.5k | 81 | 80.08 |
| 2025-09-30 | $2.9M | 42k | 68.50 |
| 2025-06-30 | $4.2M | 44k | 95.19 |
| 2025-03-31 | $5.2M | 44k | 118.48 |
| 2024-12-31 | $5.6M | 42k | 131.67 |
| 2024-09-30 | $5.5M | 42k | 129.67 |
| 2024-06-30 | $3.7M | 43k | 87.04 |
| 2024-03-31 | $4.7M | 43k | 109.73 |
| 2023-09-30 | $4.8M | 46k | 105.07 |
| 2022-12-31 | $9.3M | 50k | 184.09 |
| 2022-09-30 | $5.5M | 45k | 121.27 |
| 2022-06-30 | $9.1M | 46k | 199.86 |
| 2022-03-31 | $12M | 46k | 248.91 |
| 2021-12-31 | $13M | 45k | 289.61 |
| 2021-09-30 | $14M | 46k | 295.94 |
| 2021-06-30 | $11M | 41k | 273.24 |
| 2021-03-31 | $11M | 43k | 261.67 |
| 2020-12-31 | $11M | 40k | 288.30 |
| 2020-09-30 | $10M | 37k | 277.36 |
| 2020-06-30 | $5.0M | 22k | 222.99 |
| 2020-03-31 | $5.4M | 24k | 229.30 |
| 2019-12-31 | $5.4M | 20k | 267.09 |
| 2019-09-30 | $4.5M | 20k | 222.58 |
| 2019-06-30 | $2.4M | 10k | 231.14 |
| 2019-03-31 | $2.4M | 10k | 232.18 |
| 2018-12-31 | $2.5M | 11k | 217.36 |
| 2018-09-30 | $1.7M | 9.0k | 183.92 |
| 2018-06-30 | $1.9M | 9.0k | 214.04 |
| 2018-03-31 | $1.6M | 9.2k | 169.37 |
| 2017-12-31 | $849k | 6.5k | 131.00 |
| 2017-09-30 | $557k | 3.5k | 160.01 |