Mesa Laboratories shares owned by Citadel Advisors
Quarter-by-quarter ownership of Mesa Laboratories (MLAB) shares owned by Citadel Advisors
from 13F filings
Historical chart of Citadel Advisors investment in Mesa Laboratories
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Quarterly reported holdings in Mesa Laboratories by Citadel Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $2.3M | 34k | 67.01 |
| 2025-06-30 | $2.5M | 27k | 94.22 |
| 2025-03-31 | $722k | 6.1k | 118.66 |
| 2024-12-31 | $899k | 6.8k | 131.87 |
| 2024-09-30 | $1.4M | 11k | 129.86 |
| 2024-06-30 | $2.1M | 25k | 86.77 |
| 2024-03-31 | $3.7M | 34k | 109.73 |
| 2023-12-31 | $2.9M | 27k | 104.77 |
| 2023-09-30 | $2.7M | 26k | 105.07 |
| 2023-06-30 | $6.0M | 47k | 128.50 |
| 2023-03-31 | $774k | 4.4k | 174.73 |
| 2022-12-31 | $8.4M | 51k | 166.21 |
| 2022-06-30 | $938k | 4.6k | 203.87 |
| 2022-03-31 | $3.8M | 15k | 254.88 |
| 2021-12-31 | $505k | 1.5k | 328.14 |
| 2021-09-30 | $735k | 2.4k | 302.47 |
| 2021-06-30 | $1.5M | 5.6k | 271.26 |
| 2021-03-31 | $2.7M | 11k | 243.47 |
| 2020-12-31 | $3.5M | 12k | 286.70 |
| 2020-09-30 | $1.3M | 5.2k | 255.01 |
| 2020-06-30 | $2.8M | 13k | 216.75 |
| 2020-03-31 | $653k | 2.9k | 223.30 |
| 2019-12-31 | $1.6M | 6.4k | 249.33 |
| 2019-03-31 | $914k | 4.0k | 230.05 |
| 2018-12-31 | $575k | 2.8k | 208.40 |
| 2018-09-30 | $615k | 3.3k | 185.85 |
| 2016-09-30 | $205k | 1.8k | 114.14 |
| 2016-06-30 | $226k | 1.8k | 123.23 |