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, Q4 2025
Institutional positions in Mesa Laboratories Inc as of Dec 31, 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
- 159
- +23 vs. Q3 2025
- Shares held
- 4.74M
- −60.2K (−1.3%) vs. Q3 2025
- Total value
- $372.5M
- +$50.5M (+15.7%) vs. Q3 2025
- New holders
- 35
- 55 more added
- Sold out
- 12
- 44 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Mesa Laboratories Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 398,666 | $31.3M | 0.00% | +9,871+2.5% | Added |
| Vanguard Group Inc | 321,899 | $25.3M | 0.00% | +182+0.1% | Added |
| Long Path Partners LP | 227,223 | $17.8M | 6.10% | +227,223 | New |
| Boston Partners | 213,376 | $16.8M | 0.02% | +99,019+86.6% | Added |
| Select Equity Group, L.P. | 206,435 | $16.2M | 0.08% | +79,720+62.9% | Added |
| Ranger Investment Management, L.P. | 205,263 | $16.1M | 1.11% | −4,437−2.1% | Reduced |
| Geneva Capital Management LLC | 178,713 | $14.0M | 0.26% | −12,673−6.6% | Reduced |
| Morgan Stanley | 175,589 | $13.8M | 0.00% | −79,385−31.1% | Reduced |
| Royce & Associates LP | 153,352 | $12.0M | 0.12% | +4,794+3.2% | Added |
| Kennedy Capital Management, Inc. | 144,606 | $11.4M | 0.24% | +23,060+19.0% | Added |
| Diamond Hill Capital Management Inc | 141,973 | $11.1M | 0.06% | +18,592+15.1% | Added |
| Geode Capital Management, LLC | 127,950 | $10.0M | 0.00% | +90+0.1% | Added |
| State Street Corp | 120,641 | $9.47M | 0.00% | +1,693+1.4% | Added |
| Janus Henderson Group PLC | 116,642 | $9.16M | 0.00% | −29,012−19.9% | Reduced |
| Dimensional Fund Advisors LP | 116,363 | $9.13M | 0.00% | −409−0.4% | Reduced |
| Russell Investments Group, Ltd. | 116,337 | $9.13M | 0.01% | +17,150+17.3% | Added |
| Raymond James Financial Inc | 100,397 | $7.89M | 0.00% | +52,995+111.8% | Added |
| Meros Investment Management, LP | 85,017 | $6.67M | 2.65% | +8,540+11.2% | Added |
| Crawford Investment Counsel Inc | 81,220 | $6.38M | 0.11% | −1,247−1.5% | Reduced |
| D. E. Shaw & Co., Inc. | 76,565 | $6.01M | 0.00% | +43,754+133.4% | Added |
| Mason Capital Management LLC | 70,300 | $5.52M | 0.98% | 00.0% | Unchanged |
| AQR Capital Management LLC | 70,138 | $5.51M | 0.00% | +37,499+114.9% | Added |
| Northern Trust Corp | 65,651 | $5.15M | 0.00% | −6,315−8.8% | Reduced |
| Charles Schwab Investment Management Inc | 61,913 | $4.86M | 0.00% | +7,308+13.4% | Added |
| Gabelli Funds LLC | 60,724 | $4.77M | 0.03% | +6,750+12.5% | Added |
| Citadel Advisors LLC | 58,521 | $4.59M | 0.00% | +24,343+71.2% | Added |
| Jane Street Group, LLC | 56,371 | $4.43M | 0.01% | +18,144+47.5% | Added |
| Goldman Sachs Group Inc | 55,268 | $4.34M | 0.00% | +13,487+32.3% | Added |
| Roubaix Capital, LLC | 55,189 | $4.33M | 1.85% | −21,468−28.0% | Reduced |
| Bank of America Corp | 54,664 | $4.29M | 0.00% | +7,565+16.1% | Added |
| Herald Investment Management Ltd | 50,000 | $3.92M | 0.51% | 00.0% | Unchanged |
| Trexquant Investment LP | 46,121 | $3.62M | 0.03% | +21,031+83.8% | Added |
| Bank of New York Mellon Corp | 44,774 | $3.51M | 0.00% | +11,091+32.9% | Added |
| Monimus Capital Management, LP | 40,842 | $3.21M | 2.12% | +7,098+21.0% | Added |
| Jacobs Levy Equity Management, Inc | 38,842 | $3.05M | 0.01% | +34,985+907.1% | Added |
| Qube Research & Technologies Ltd | 28,130 | $2.21M | 0.00% | −2,595−8.4% | Reduced |
| Tudor Investment Corp Et Al | 27,426 | $2.15M | 0.01% | +21,085+332.5% | Added |
| BBR Partners, LLC | 25,195 | $1.98M | 0.11% | 00.0% | Unchanged |
| Irenic Capital Management LP | 25,000 | $1.96M | 0.26% | +25,000 | New |
| State of Wisconsin Investment Board | 22,606 | $1.77M | 0.00% | +4,200+22.8% | Added |
| Franklin Resources Inc | 22,074 | $1.73M | 0.00% | +22,074 | New |
| Segall Bryant & Hamill, LLC | 18,203 | $1.43M | 0.02% | −84−0.5% | Reduced |
| King Luther Capital Management Corp | 17,411 | $1.37M | 0.01% | −2,510−12.6% | Reduced |
| Numerai GP LLC | 14,909 | $1.17M | 0.14% | +11,299+313.0% | Added |
| Principal Financial Group Inc | 14,892 | $1.17M | 0.00% | +4,827+48.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 14,369 | $1.13M | 0.00% | +14,369 | New |
| Rice Hall James & Associates, LLC | 14,217 | $1.12M | 0.06% | −2,928−17.1% | Reduced |
| Public Employees Retirement System of Ohio | 13,722 | $1.08M | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 13,528 | $1.06M | 0.01% | +13,528 | New |
| American Century Companies Inc | 13,470 | $1.06M | 0.00% | +735+5.8% | Added |
| Point72 Asset Management, L.P. | 13,458 | $1.06M | 0.00% | +13,458 | New |
| Man Group plc | 13,387 | $1.05M | 0.00% | +13,387 | New |
| Invesco Ltd. | 12,845 | $1.01M | 0.00% | +1,350+11.7% | Added |
| XTX Topco Ltd | 12,601 | $989.2K | 0.03% | +12,601 | New |
| Creative Planning | 12,437 | $976.3K | 0.00% | +3,705+42.4% | Added |
| Two Sigma Investments, LP | 12,235 | $960.4K | 0.00% | +2,612+27.1% | Added |
| Gsa Capital Partners LLP | 11,614 | $912.0K | 0.08% | +846+7.9% | Added |
| Stifel Financial Corp | 11,275 | $885.1K | 0.00% | +1,170+11.6% | Added |
| Nuveen, LLC | 10,078 | $791.1K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 9,665 | $757.0K | 0.00% | +5,623+139.1% | Added |
| BNP Paribas Arbitrage, SA | 9,406 | $738.4K | 0.00% | +8,377+814.1% | Added |
| UBS Group AG | 8,825 | $692.8K | 0.00% | −10,336−53.9% | Reduced |
| SEI Investments Co | 8,371 | $657.3K | 0.00% | +2,846+51.5% | Added |
| Barclays PLC | 8,186 | $642.6K | 0.00% | +523+6.8% | Added |
| Gamco Investors, Inc. Et Al | 7,754 | $608.7K | 0.01% | −458−5.6% | Reduced |
| Marshall Wace, LLP | 7,137 | $560.3K | 0.00% | −7,463−51.1% | Reduced |
| ExodusPoint Capital Management, LP | 6,937 | $544.6K | 0.01% | +6,937 | New |
| Envestnet Asset Management Inc | 6,932 | $544.2K | 0.00% | −9,750−58.4% | Reduced |
| Rhumbline Advisers | 6,617 | $519.4K | 0.00% | −923−12.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 6,228 | $488.9K | 0.00% | +6,228 | New |
| Dynamic Technology Lab Private Ltd | 6,190 | $486.0K | 0.11% | +6,190 | New |
| Wells Fargo & Company | 5,752 | $451.6K | 0.00% | +576+11.1% | Added |
| Royal Bank of Canada | 5,457 | $429.0K | 0.00% | −21,425−79.7% | Reduced |
| Alliancebernstein L.P. | 5,424 | $425.8K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 5,055 | $396.8K | 0.00% | +2,579+104.2% | Added |
| LPL Financial LLC | 4,984 | $391.2K | 0.00% | −829−14.3% | Reduced |
| Millennium Management LLC | 4,465 | $350.5K | 0.00% | −129,352−96.7% | Reduced |
| Aquatic Capital Management LLC | 4,446 | $349.0K | 0.01% | +836+23.2% | Added |
| Deutsche Bank AG | 4,440 | $348.5K | 0.00% | +248+5.9% | Added |
| JPMorgan Chase & Co | 4,100 | $321.9K | 0.00% | −221−5.1% | Reduced |
| Balyasny Asset Management LLC | 3,792 | $297.7K | 0.00% | −180−4.5% | Reduced |
| Graham Capital Management, L.P. | 3,723 | $292.3K | 0.01% | +3,723 | New |
| Canada Pension Plan Investment Board | 3,700 | $290.4K | 0.00% | +3,700 | New |
| Quantinno Capital Management LP | 3,661 | $287.4K | 0.00% | +3,661 | New |
| Skopos Labs, Inc. | 3,576 | $285.9K | 0.01% | +3,576 | New |
| SG Americas Securities, LLC | 3,609 | $283.0K | 0.00% | +3,609 | New |
| Renaissance Technologies LLC | 3,500 | $274.8K | 0.00% | −7,400−67.9% | Reduced |
| EntryPoint Capital, LLC | 3,469 | $272.3K | 0.11% | −776−18.3% | Reduced |
| Kings Path Partners LLC | 3,405 | $267.3K | 0.09% | 00.0% | Unchanged |
| Cerity Partners LLC | 3,361 | $263.8K | 0.00% | +3,361 | New |
| Mariner, LLC | 3,313 | $260.1K | 0.00% | +3,313 | New |
| Price T Rowe Associates Inc | 3,141 | $247.0K | 0.00% | −972−23.6% | Reduced |
| Engineers Gate Manager LP | 3,031 | $237.9K | 0.00% | +3,031 | New |
| MetLife Investment Management | 2,888 | $226.7K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 2,747 | $215.6K | 0.00% | +2,747 | New |
| State Board of Administration of Florida Retirement System | 2,564 | $201.3K | 0.00% | +2,564 | New |
| New York State Common Retirement Fund | 2,143 | $168.2K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 2,116 | $166.1K | 0.01% | −3,955−65.1% | Reduced |
| Quantbot Technologies LP | 2,095 | $164.5K | 0.01% | −567−21.3% | Reduced |
| CWM, LLC | 1,485 | $117.0K | 0.00% | +888+148.7% | Added |