Chuck Royce's MLAB Position Overview
Chuck Royce (via Royce & Associates Lp) currently holds 148,558 shares of Mesa Laboratories, Inc. (MLAB) worth $9.95 M, representing 0.10% 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, Chuck Royce has maintained a long-term strategic position in MLAB, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2019, adding 118,355 shares. Largest reduction occurred in Q3 2025, reducing 99,048 shares.
Analysis based on 13F filings available since 2013 Q2
Chuck Royce's Mesa Laboratories (MLAB) Holding Value Over Time
Track share changes against reported price movement
Quarterly Mesa Laboratories (MLAB) Trades by Chuck Royce
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +51,390 | Add 0.00% | 51,389 | $54.14 |
| Q3 2013 | +30,000 | Add 58.38% | 81,389 | $67.61 |
| Q4 2013 | +700 | Add 0.86% | 82,089 | $78.59 |
| Q1 2014 | -27,570 | Reduce 33.59% | 54,519 | $90.24 |
| Q2 2014 | -1,930 | Reduce 3.54% | 52,589 | $83.95 |
| Q4 2014 | -9,800 | Reduce 18.64% | 42,789 | $77.31 |
| Q1 2015 | -4,300 | Reduce 10.05% | 38,489 | $72.20 |
| Q2 2015 | +16,400 | Add 42.61% | 54,889 | $88.91 |
| Q3 2015 | -5,600 | Reduce 10.20% | 49,289 | $111.40 |
| Q4 2015 | -4,789 | Reduce 9.72% | 44,500 | $99.51 |
| Q1 2016 | +14,600 | Add 32.81% | 59,100 | $96.35 |
| Q2 2016 | -5,100 | Reduce 8.63% | 54,000 | $123.00 |
| Q3 2016 | -13,700 | Reduce 25.37% | 40,300 | $114.37 |
| Q1 2017 | +9,772 | Add 24.25% | 50,072 | $122.70 |
| Q2 2017 | +28,458 | Add 56.83% | 78,530 | $143.31 |
| Q3 2017 | -2,057 | Reduce 2.62% | 76,473 | $149.32 |
| Q4 2017 | +2,289 | Add 2.99% | 78,762 | $124.30 |
| Q1 2018 | +7,890 | Add 10.02% | 86,652 | $148.44 |
| Q2 2018 | +15,778 | Add 18.21% | 102,430 | $211.08 |
| Q3 2018 | +13,943 | Add 13.61% | 116,373 | $185.62 |
| Q4 2018 | -5,692 | Reduce 4.89% | 110,681 | $208.39 |
| Q1 2019 | -6,482 | Reduce 5.86% | 104,199 | $230.50 |
| Q2 2019 | +16,305 | Add 15.65% | 120,504 | $244.34 |
| Q3 2019 | +118,355 | Add 98.22% | 238,859 | $237.77 |
| Q4 2019 | +27,120 | Add 11.35% | 265,979 | $249.40 |
| Q1 2020 | -15 | Reduce 0.01% | 265,964 | $226.09 |
| Q2 2020 | +40,316 | Add 15.16% | 306,280 | $216.80 |
| Q3 2020 | +4,174 | Add 1.36% | 310,454 | $254.76 |
| Q4 2020 | -3,201 | Reduce 1.03% | 307,253 | $286.64 |
| Q1 2021 | -5,212 | Reduce 1.70% | 302,041 | $243.50 |
| Q2 2021 | +30,705 | Add 10.17% | 332,746 | $271.17 |
| Q3 2021 | +8,459 | Add 2.54% | 341,205 | $302.36 |
| Q4 2021 | +1,553 | Add 0.46% | 342,758 | $328.09 |
| Q1 2022 | +13,885 | Add 4.05% | 356,643 | $254.88 |
| Q2 2022 | -79,172 | Reduce 22.20% | 277,471 | $203.94 |
| Q3 2022 | -26,291 | Reduce 9.48% | 251,180 | $140.83 |
| Q4 2022 | -90,603 | Reduce 36.07% | 160,577 | $166.21 |
| Q1 2023 | -2,680 | Reduce 1.67% | 157,897 | $174.73 |
| Q2 2023 | +1,712 | Add 1.08% | 159,609 | $128.50 |
| Q3 2023 | +6,413 | Add 4.02% | 166,022 | $105.07 |
| Q4 2023 | +103,623 | Add 62.42% | 269,645 | $104.77 |
| Q1 2024 | +14,094 | Add 5.23% | 283,739 | $109.73 |
| Q2 2024 | +110,762 | Add 39.04% | 394,501 | $86.77 |
| Q3 2024 | -47,356 | Reduce 12.00% | 347,145 | $129.86 |
| Q4 2024 | -59,938 | Reduce 17.27% | 287,207 | $131.87 |
| Q1 2025 | -16,089 | Reduce 5.60% | 271,118 | $118.66 |
| Q2 2025 | -23,512 | Reduce 8.67% | 247,606 | $94.22 |
| Q3 2025 | -99,048 | Reduce 40.00% | 148,558 | $67.01 |
Chuck Royce's Mesa Laboratories Investment FAQs
Chuck Royce first purchased Mesa Laboratories, Inc. (MLAB) in Q2 2013, acquiring 51,389 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Chuck Royce has held Mesa Laboratories, Inc. (MLAB) for 50 quarters since Q2 2013.
Chuck Royce's largest addition to Mesa Laboratories, Inc. (MLAB) was in Q3 2019, adding 238,859 shares worth $56.79 M.
According to the latest 13F filing for Q3 2025, Chuck Royce's firm, Royce & Associates Lp, owns 148,558 shares of Mesa Laboratories, Inc. (MLAB), valued at approximately $9.95 M.
As of the Q3 2025 filing, Mesa Laboratories, Inc. (MLAB) represents approximately 0.10% of Chuck Royce's publicly disclosed stock portfolio, making it one of their key holdings.
Chuck Royce's peak holding in Mesa Laboratories, Inc. (MLAB) was 394,501 shares, as reported at the end of Q2 2024.