Mesa Laboratories Inc
MLAB- Exchange
- Nasdaq
- Industry
- Industrial Instruments For Measurement, Display, and Control
- SEC CIK
- 0000724004
In the last 90 days, Mesa Laboratories Inc insiders filed 2 open-market purchases and 1 sale; 159 institutions reported holding it in 13F filings for Q2 2026, worth $500.8M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Mesa Laboratories Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 141
- −13 vs. Q2 2025
- Shares held
- 4.98M
- −206.3K (−4.0%) vs. Q2 2025
- Total value
- $334.0M
- −$155.1M (−31.7%) vs. Q2 2025
- New holders
- 26
- 41 more added
- Sold out
- 39
- 54 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MLAB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 159 | $500.8M |
| Q1 2026 | 161 | $426.6M |
| Q4 2025 | 159 | $372.5M |
| Q3 2025 | 141 | $334.0M |
| Q2 2025 | 155 | $489.1M |
| Q1 2025 | 151 | $613.4M |
| Q4 2024 | 157 | $673.0M |
| Q3 2024 | 166 | $633.6M |
| Q2 2024 | 155 | $424.4M |
| Q1 2024 | 155 | $534.3M |
| Q4 2023 | 158 | $507.5M |
| Q3 2023 | 154 | $515.1M |
| Q2 2023 | 161 | $630.0M |
| Q1 2023 | 160 | $877.7M |
| Q4 2022 | 160 | $846.5M |
| Q3 2022 | 164 | $680.9M |
| Q2 2022 | 175 | $1.00B |
| Q1 2022 | 175 | $1.24B |
| Q4 2021 | 178 | $1.57B |
| Q3 2021 | 172 | $1.44B |
| Q2 2021 | 159 | $1.28B |
| Q1 2021 | 173 | $1.12B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Mesa Laboratories Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Conestoga Capital Advisors, LLC | 426,457 | $28.6M | 0.46% | −139,693−24.7% | Reduced |
| BlackRock, Inc. | 388,795 | $26.1M | 0.00% | −402,332−50.9% | Reduced |
| Vanguard Group Inc | 321,717 | $21.6M | 0.00% | −67,692−17.4% | Reduced |
| Morgan Stanley | 254,974 | $17.1M | 0.00% | +36,178+16.5% | Added |
| Ranger Investment Management, L.P. | 209,700 | $14.1M | 0.98% | −4,590−2.1% | Reduced |
| Geneva Capital Management LLC | 191,386 | $12.8M | 0.22% | −7,706−3.9% | Reduced |
| Simcoe Capital Management, LLC | 190,929 | $12.8M | 1.85% | +190,929 | New |
| Royce & Associates LP | 148,558 | $9.95M | 0.10% | −99,048−40.0% | Reduced |
| Janus Henderson Group PLC | 145,654 | $9.76M | 0.00% | +32,369+28.6% | Added |
| Kent Lake PR LLC | 134,516 | $9.01M | 4.61% | +134,516 | New |
| Millennium Management LLC | 133,817 | $8.97M | 0.01% | +76,107+131.9% | Added |
| Geode Capital Management, LLC | 127,860 | $8.57M | 0.00% | −10,909−7.9% | Reduced |
| Select Equity Group, L.P. | 126,715 | $8.49M | 0.04% | +24,517+24.0% | Added |
| Diamond Hill Capital Management Inc | 123,381 | $8.27M | 0.04% | +84,582+218.0% | Added |
| Kennedy Capital Management, Inc. | 121,546 | $8.14M | 0.18% | +31,067+34.3% | Added |
| State Street Corp | 118,948 | $7.97M | 0.00% | −92,887−43.8% | Reduced |
| Dimensional Fund Advisors LP | 116,772 | $7.82M | 0.00% | +1,488+1.3% | Added |
| Boston Partners | 114,357 | $7.66M | 0.01% | +108,936+2,009.5% | Added |
| Russell Investments Group, Ltd. | 99,187 | $6.65M | 0.01% | +19,711+24.8% | Added |
| Crawford Investment Counsel Inc | 82,467 | $5.53M | 0.09% | +30,723+59.4% | Added |
| Roubaix Capital, LLC | 76,657 | $5.14M | 2.39% | +76,657 | New |
| Meros Investment Management, LP | 76,477 | $5.12M | 2.19% | +39,859+108.9% | Added |
| Northern Trust Corp | 71,966 | $4.82M | 0.00% | −20,766−22.4% | Reduced |
| Mason Capital Management LLC | 70,300 | $4.71M | 0.96% | +70,300 | New |
| Charles Schwab Investment Management Inc | 54,605 | $3.66M | 0.00% | −7,159−11.6% | Reduced |
| Gabelli Funds LLC | 53,974 | $3.62M | 0.02% | +28,818+114.6% | Added |
| Herald Investment Management Ltd | 50,000 | $3.34M | 0.44% | +37,500+300.0% | Added |
| Raymond James Financial Inc | 47,402 | $3.18M | 0.00% | −138,153−74.5% | Reduced |
| Bank of America Corp | 47,099 | $3.16M | 0.00% | −17,829−27.5% | Reduced |
| Comerica Bank | 42,388 | $2.84M | 0.01% | −1,875−4.2% | Reduced |
| Goldman Sachs Group Inc | 41,781 | $2.80M | 0.00% | +12,355+42.0% | Added |
| Ameriprise Financial Inc | 39,095 | $2.62M | 0.00% | −34,418−46.8% | Reduced |
| Jane Street Group, LLC | 38,227 | $2.56M | 0.00% | +24,442+177.3% | Added |
| Cubist Systematic Strategies, LLC | 35,988 | $2.41M | 0.03% | +35,988 | New |
| Citadel Advisors LLC | 34,178 | $2.29M | 0.00% | +7,305+27.2% | Added |
| Monimus Capital Management, LP | 33,744 | $2.26M | 1.68% | +33,744 | New |
| Bank of New York Mellon Corp | 33,683 | $2.26M | 0.00% | −19,814−37.0% | Reduced |
| D. E. Shaw & Co., Inc. | 32,811 | $2.20M | 0.00% | +24,146+278.7% | Added |
| AQR Capital Management LLC | 32,639 | $2.19M | 0.00% | +24,912+322.4% | Added |
| Qube Research & Technologies Ltd | 30,725 | $2.06M | 0.00% | +10,827+54.4% | Added |
| Royal Bank of Canada | 26,882 | $1.80M | 0.00% | −10,396−27.9% | Reduced |
| BBR Partners, LLC | 25,195 | $1.69M | 0.10% | 00.0% | Unchanged |
| Trexquant Investment LP | 25,090 | $1.68M | 0.02% | +21,070+524.1% | Added |
| King Luther Capital Management Corp | 19,921 | $1.33M | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 19,161 | $1.28M | 0.00% | −12,133−38.8% | Reduced |
| State of Wisconsin Investment Board | 18,406 | $1.23M | 0.00% | +18,406 | New |
| Segall Bryant & Hamill, LLC | 18,287 | $1.23M | 0.02% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 17,145 | $1.15M | 0.06% | −8,201−32.4% | Reduced |
| Envestnet Asset Management Inc | 16,682 | $1.12M | 0.00% | −3,801−18.6% | Reduced |
| Marshall Wace, LLP | 14,600 | $978.3K | 0.00% | +14,600 | New |
| Public Employees Retirement System of Ohio | 13,722 | $919.5K | 0.00% | 00.0% | Unchanged |
| American Century Companies Inc | 12,735 | $853.4K | 0.00% | −696−5.2% | Reduced |
| Invesco Ltd. | 11,495 | $770.3K | 0.00% | −6,300−35.4% | Reduced |
| Renaissance Technologies LLC | 10,900 | $730.4K | 0.00% | −57,127−84.0% | Reduced |
| Gsa Capital Partners LLP | 10,768 | $722.0K | 0.06% | +4,456+70.6% | Added |
| Victory Capital Management Inc | 10,455 | $700.6K | 0.00% | +8,547+448.0% | Added |
| Stifel Financial Corp | 10,105 | $677.1K | 0.00% | +1,813+21.9% | Added |
| Nuveen, LLC | 10,078 | $675.3K | 0.00% | −5,846−36.7% | Reduced |
| Principal Financial Group Inc | 10,065 | $674.5K | 0.00% | −19,713−66.2% | Reduced |
| Two Sigma Investments, LP | 9,623 | $644.8K | 0.00% | +9,623 | New |
| Creative Planning | 8,732 | $585.1K | 0.00% | +2,379+37.4% | Added |
| Gamco Investors, Inc. Et Al | 8,212 | $550.3K | 0.01% | +4,282+109.0% | Added |
| Barclays PLC | 7,663 | $513.5K | 0.00% | −2,507−24.7% | Reduced |
| Rhumbline Advisers | 7,540 | $505.2K | 0.00% | −5,253−41.1% | Reduced |
| Tudor Investment Corp Et Al | 6,341 | $424.9K | 0.00% | +2,139+50.9% | Added |
| Quest Partners LLC | 6,071 | $406.8K | 0.03% | +15+0.2% | Added |
| Brevan Howard Capital Management LP | 5,977 | $400.5K | 0.01% | +3,678+160.0% | Added |
| LPL Financial LLC | 5,813 | $389.6K | 0.00% | −1,275−18.0% | Reduced |
| SEI Investments Co | 5,525 | $370.2K | 0.00% | +1,163+26.7% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 5,485 | $367.6K | 0.06% | +5,485 | New |
| Alliancebernstein L.P. | 5,424 | $363.5K | 0.00% | −236−4.2% | Reduced |
| Wells Fargo & Company | 5,176 | $346.8K | 0.00% | −12,967−71.5% | Reduced |
| JPMorgan Chase & Co | 4,321 | $289.6K | 0.00% | −717−14.2% | Reduced |
| EntryPoint Capital, LLC | 4,245 | $284.5K | 0.11% | +4,245 | New |
| Susquehanna International Group, LLP | 4,193 | $281.0K | 0.00% | −6,761−61.7% | Reduced |
| Deutsche Bank AG | 4,192 | $280.9K | 0.00% | +126+3.1% | Added |
| Price T Rowe Associates Inc | 4,113 | $276.0K | 0.00% | +283+7.4% | Added |
| Acadian Asset Management LLC | 4,042 | $268.0K | 0.00% | +4,042 | New |
| Balyasny Asset Management LLC | 3,972 | $266.2K | 0.00% | +3,972 | New |
| Jacobs Levy Equity Management, Inc | 3,857 | $258.5K | 0.00% | +3,857 | New |
| Aquatic Capital Management LLC | 3,610 | $241.9K | 0.00% | +2,956+452.0% | Added |
| Numerai GP LLC | 3,610 | $241.9K | 0.03% | +3,610 | New |
| Kings Path Partners LLC | 3,405 | $228.2K | 0.08% | 00.0% | Unchanged |
| Glenmede Investment Management, LP | 3,010 | $201.7K | 0.00% | −139,498−97.9% | Reduced |
| MetLife Investment Management | 2,888 | $193.5K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 2,662 | $178.4K | 0.00% | +2,662 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 2,476 | $165.9K | 0.00% | −364−12.8% | Reduced |
| New York State Common Retirement Fund | 2,143 | $143.6K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 1,331 | $89.2K | 0.00% | +87+7.0% | Added |
| Smartleaf Asset Management LLC | 1,299 | $83.2K | 0.01% | −400−23.5% | Reduced |
| State of Tennessee, Treasury Department | 1,238 | $83.0K | 0.00% | −1,983−61.6% | Reduced |
| Public Employees Retirement Association of Colorado | 1,181 | $79.0K | 0.00% | −55−4.4% | Reduced |
| BNP Paribas Arbitrage, SA | 1,029 | $69.0K | 0.00% | +243+30.9% | Added |
| Asset Dedication, LLC | 830 | $55.6K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 728 | $48.8K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 702 | $47.0K | 0.00% | −513−42.2% | Reduced |
| SRS Capital Advisors, Inc. | 615 | $41.2K | 0.00% | +103+20.1% | Added |
| FMR LLC | 606 | $40.6K | 0.00% | −2,317−79.3% | Reduced |
| CWM, LLC | 597 | $40.0K | 0.00% | +196+48.9% | Added |
| Point72 (DIFC) Ltd | 576 | $38.6K | 0.00% | +576 | New |