Renaissance Technologies's MLAB Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 10,900 shares of Mesa Laboratories, Inc. (MLAB) worth $730,409, representing 0.00% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Renaissance Technologies has maintained a long-term strategic position in MLAB, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2025, adding 59,827 shares. Largest reduction occurred in Q3 2025, reducing 57,127 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's Mesa Laboratories (MLAB) Holding Value Over Time
Track share changes against reported price movement
Quarterly Mesa Laboratories (MLAB) Trades by Renaissance Technologies
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +89,201 | Add 0.00% | 89,200 | $54.13 |
| Q3 2013 | +22,000 | Add 24.66% | 111,200 | $67.61 |
| Q4 2013 | +14,988 | Add 13.48% | 126,188 | $78.58 |
| Q1 2014 | +7,955 | Add 6.30% | 134,143 | $90.25 |
| Q2 2014 | +26,457 | Add 19.72% | 160,600 | $83.96 |
| Q3 2014 | +7,200 | Add 4.48% | 167,800 | $57.78 |
| Q4 2014 | -20,576 | Reduce 12.26% | 147,224 | $77.31 |
| Q1 2015 | -7,124 | Reduce 4.84% | 140,100 | $72.20 |
| Q2 2015 | -5,907 | Reduce 4.22% | 134,193 | $88.90 |
| Q3 2015 | +207 | Add 0.15% | 134,400 | $111.40 |
| Q4 2015 | +4,199 | Add 3.12% | 138,599 | $99.50 |
| Q1 2016 | -2,199 | Reduce 1.59% | 136,400 | $96.35 |
| Q2 2016 | -34,800 | Reduce 25.51% | 101,600 | $123.00 |
| Q3 2016 | -7,441 | Reduce 7.32% | 94,159 | $114.36 |
| Q4 2016 | -10,859 | Reduce 11.53% | 83,300 | $122.75 |
| Q1 2017 | -3,800 | Reduce 4.56% | 79,500 | $122.70 |
| Q2 2017 | +7,771 | Add 9.77% | 87,271 | $143.31 |
| Q3 2017 | -3,071 | Reduce 3.52% | 84,200 | $149.32 |
| Q4 2017 | -5,600 | Reduce 6.65% | 78,600 | $124.30 |
| Q1 2018 | -4,600 | Reduce 5.85% | 74,000 | $148.45 |
| Q2 2018 | -11,500 | Reduce 15.54% | 62,500 | $211.09 |
| Q3 2018 | +200 | Add 0.32% | 62,700 | $185.61 |
| Q4 2018 | -400 | Reduce 0.64% | 62,300 | $208.39 |
| Q1 2019 | -8,400 | Reduce 13.48% | 53,900 | $230.50 |
| Q2 2019 | -7,100 | Reduce 13.17% | 46,800 | $244.34 |
| Q3 2019 | +33,700 | Add 72.01% | 80,500 | $237.76 |
| Q4 2019 | -14,600 | Reduce 18.14% | 65,900 | $249.39 |
| Q1 2020 | -32,000 | Reduce 48.56% | 33,900 | $226.08 |
| Q2 2020 | +15,200 | Add 44.84% | 49,100 | $216.80 |
| Q3 2020 | -7,000 | Reduce 14.26% | 42,100 | $254.75 |
| Q4 2020 | -28,000 | Reduce 66.51% | 14,100 | $286.67 |
| Q1 2021 | -2,200 | Reduce 15.60% | 11,900 | $243.53 |
| Q2 2021 | +11,800 | Add 99.16% | 23,700 | $271.18 |
| Q3 2021 | +3,400 | Add 14.35% | 27,100 | $302.36 |
| Q4 2021 | -11,218 | Reduce 41.39% | 15,882 | $328.11 |
| Q1 2022 | -2,782 | Reduce 17.52% | 13,100 | $254.89 |
| Q3 2022 | -4,900 | Reduce 37.40% | 8,200 | $140.85 |
| Q4 2022 | +9,734 | Add 118.71% | 17,934 | $0.17 |
| Q1 2023 | -8,234 | Reduce 45.91% | 9,700 | $0.17 |
| Q2 2023 | +13,300 | Add 137.11% | 23,000 | $0.13 |
| Q3 2023 | -14,200 | Reduce 61.74% | 8,800 | $105.11 |
| Q4 2023 | +21,600 | Add 245.45% | 30,400 | $104.77 |
| Q1 2024 | -14,300 | Reduce 47.04% | 16,100 | $109.75 |
| Q2 2024 | -13,700 | Reduce 85.09% | 2,400 | $86.77 |
| Q3 2024 | +11,000 | Add 458.33% | 13,400 | $129.86 |
| Q4 2024 | -5,900 | Reduce 44.03% | 7,500 | $131.87 |
| Q1 2025 | +700 | Add 9.33% | 8,200 | $118.66 |
| Q2 2025 | +59,827 | Add 729.60% | 68,027 | $94.22 |
| Q3 2025 | -57,127 | Reduce 83.98% | 10,900 | $67.01 |
Renaissance Technologies's Mesa Laboratories Investment FAQs
Renaissance Technologies first purchased Mesa Laboratories, Inc. (MLAB) in Q2 2013, acquiring 89,200 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held Mesa Laboratories, Inc. (MLAB) for 50 quarters since Q2 2013.
Renaissance Technologies's largest addition to Mesa Laboratories, Inc. (MLAB) was in Q2 2013, adding 89,200 shares worth $4.83 M.
According to the latest 13F filing for Q3 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 10,900 shares of Mesa Laboratories, Inc. (MLAB), valued at approximately $730,409.
As of the Q3 2025 filing, Mesa Laboratories, Inc. (MLAB) represents approximately 0.00% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies's peak holding in Mesa Laboratories, Inc. (MLAB) was 167,800 shares, as reported at the end of Q3 2014.