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, Q1 2026
Institutional positions in Mesa Laboratories Inc as of Mar 31, 2026. 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
- 161
- +6 vs. Q4 2025
- Shares held
- 4.83M
- +405.3K (+9.2%) vs. Q4 2025
- Total value
- $426.6M
- +$79.4M (+22.9%) vs. Q4 2025
- New holders
- 26
- 61 more added
- Sold out
- 20
- 42 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Mesa Laboratories Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Long Path Partners LP | 405,583 | $35.9M | 16.29% | +178,360+78.5% | Added |
| BlackRock, Inc. | 393,851 | $34.8M | 0.00% | −4,815−1.2% | Reduced |
| Boston Partners | 268,711 | $23.8M | 0.02% | +55,335+25.9% | Added |
| Select Equity Group, L.P. | 235,885 | $20.9M | 0.11% | +29,450+14.3% | Added |
| Vanguard Capital Management LLC | 232,643 | $20.6M | 0.00% | +232,643 | New |
| Ranger Investment Management, L.P. | 202,903 | $17.9M | 1.30% | −2,360−1.1% | Reduced |
| AQR Capital Management LLC | 170,562 | $15.1M | 0.01% | +100,424+143.2% | Added |
| Morgan Stanley | 162,116 | $14.3M | 0.00% | −13,473−7.7% | Reduced |
| Royce & Associates LP | 161,229 | $14.3M | 0.14% | +7,877+5.1% | Added |
| Diamond Hill Capital Management Inc | 155,302 | $13.7M | 0.09% | +13,329+9.4% | Added |
| Kennedy Capital Management, Inc. | 142,343 | $12.6M | 0.27% | −2,263−1.6% | Reduced |
| Russell Investments Group, Ltd. | 135,069 | $11.9M | 0.01% | +18,732+16.1% | Added |
| Geode Capital Management, LLC | 128,002 | $11.3M | 0.00% | +520.0% | Added |
| Dimensional Fund Advisors LP | 124,630 | $11.0M | 0.00% | +8,267+7.1% | Added |
| State Street Corp | 122,068 | $10.8M | 0.00% | +1,427+1.2% | Added |
| Raymond James Financial Inc | 122,911 | $10.7M | 0.00% | +22,514+22.4% | Added |
| Monimus Capital Management, LP | 101,292 | $8.96M | 2.48% | +60,450+148.0% | Added |
| Crawford Investment Counsel Inc | 95,535 | $8.45M | 0.14% | +14,315+17.6% | Added |
| Roubaix Capital, LLC | 72,115 | $6.38M | 2.98% | +16,926+30.7% | Added |
| Goldman Sachs Group Inc | 70,617 | $6.24M | 0.00% | +15,349+27.8% | Added |
| Janus Henderson Group PLC | 69,401 | $6.14M | 0.00% | −47,241−40.5% | Reduced |
| Northern Trust Corp | 69,264 | $6.12M | 0.00% | +3,613+5.5% | Added |
| Meros Investment Management, LP | 68,032 | $6.02M | 2.61% | −16,985−20.0% | Reduced |
| Gabelli Funds LLC | 62,499 | $5.53M | 0.04% | +1,775+2.9% | Added |
| Charles Schwab Investment Management Inc | 62,424 | $5.52M | 0.00% | +511+0.8% | Added |
| Bank of America Corp | 57,871 | $5.12M | 0.00% | +3,207+5.9% | Added |
| D. E. Shaw & Co., Inc. | 54,558 | $4.82M | 0.00% | −22,007−28.7% | Reduced |
| Vanguard Portfolio Management LLC | 52,586 | $4.65M | 0.00% | +52,586 | New |
| Wasatch Advisors Inc | 51,233 | $4.53M | 0.03% | +51,233 | New |
| Herald Investment Management Ltd | 50,000 | $4.39M | 0.61% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 44,417 | $3.93M | 0.02% | +5,575+14.4% | Added |
| Bank of New York Mellon Corp | 43,937 | $3.88M | 0.00% | −837−1.9% | Reduced |
| Vanguard Fiduciary Trust Co | 38,337 | $3.39M | 0.00% | +38,337 | New |
| Renaissance Technologies LLC | 31,600 | $2.79M | 0.00% | +28,100+802.9% | Added |
| BBR Partners, LLC | 25,195 | $2.23M | 0.12% | 00.0% | Unchanged |
| Franklin Resources Inc | 21,553 | $1.91M | 0.00% | −521−2.4% | Reduced |
| Lazard Asset Management LLC | 20,328 | $1.80M | 0.00% | +20,328 | New |
| State of Wisconsin Investment Board | 19,006 | $1.68M | 0.00% | −3,600−15.9% | Reduced |
| Trexquant Investment LP | 18,661 | $1.65M | 0.01% | −27,460−59.5% | Reduced |
| Segall Bryant & Hamill, LLC | 18,174 | $1.61M | 0.02% | −29−0.2% | Reduced |
| King Luther Capital Management Corp | 17,411 | $1.54M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 16,359 | $1.45M | 0.00% | +4,124+33.7% | Added |
| Point72 Asset Management, L.P. | 16,309 | $1.44M | 0.00% | +2,851+21.2% | Added |
| Creative Planning | 14,994 | $1.33M | 0.00% | +2,557+20.6% | Added |
| Rice Hall James & Associates, LLC | 14,222 | $1.26M | 0.07% | +50.0% | Added |
| CenterBook Partners LP | 14,194 | $1.26M | 0.07% | +14,194 | New |
| Invesco Ltd. | 14,103 | $1.25M | 0.00% | +1,258+9.8% | Added |
| Public Employees Retirement System of Ohio | 13,722 | $1.21M | 0.00% | 00.0% | Unchanged |
| American Century Companies Inc | 13,373 | $1.18M | 0.00% | −97−0.7% | Reduced |
| Royal Bank of Canada | 13,275 | $1.17M | 0.00% | +7,818+143.3% | Added |
| UBS Group AG | 12,046 | $1.07M | 0.00% | +3,221+36.5% | Added |
| Stifel Financial Corp | 11,363 | $1.00M | 0.00% | +88+0.8% | Added |
| Principal Financial Group Inc | 11,088 | $980.4K | 0.00% | −3,804−25.5% | Reduced |
| Numerai GP LLC | 10,952 | $968.4K | 0.10% | −3,957−26.5% | Reduced |
| Globeflex Capital L P | 10,838 | $958.3K | 0.15% | +10,838 | New |
| Nuveen, LLC | 10,139 | $896.5K | 0.00% | +61+0.6% | Added |
| Ieq Capital, LLC | 9,658 | $854.0K | 0.00% | +9,658 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 9,517 | $841.5K | 0.00% | −4,852−33.8% | Reduced |
| Mariner, LLC | 8,966 | $792.6K | 0.00% | +5,653+170.6% | Added |
| Quadrature Capital Ltd | 8,693 | $768.6K | 0.01% | −4,835−35.7% | Reduced |
| Envestnet Asset Management Inc | 8,624 | $762.5K | 0.00% | +1,692+24.4% | Added |
| Citadel Advisors LLC | 8,423 | $744.8K | 0.00% | −50,098−85.6% | Reduced |
| Gamco Investors, Inc. Et Al | 7,834 | $692.7K | 0.01% | +80+1.0% | Added |
| Vident Advisory, LLC | 7,608 | $672.7K | 0.01% | +7,608 | New |
| SEI Investments Co | 7,403 | $654.7K | 0.00% | −968−11.6% | Reduced |
| Cerity Partners LLC | 7,245 | $640.6K | 0.00% | +3,884+115.6% | Added |
| Tudor Investment Corp Et Al | 6,874 | $607.8K | 0.00% | −20,552−74.9% | Reduced |
| Canada Pension Plan Investment Board | 6,800 | $601.3K | 0.00% | +3,100+83.8% | Added |
| Rhumbline Advisers | 6,547 | $578.9K | 0.00% | −70−1.1% | Reduced |
| FMR LLC | 6,470 | $572.1K | 0.00% | +5,624+664.8% | Added |
| Y-Intercept (Hong Kong) Ltd | 6,315 | $558.4K | 0.01% | +6,315 | New |
| XTX Topco Ltd | 6,201 | $548.3K | 0.01% | −6,400−50.8% | Reduced |
| CWM, LLC | 5,809 | $513.6K | 0.00% | +4,324+291.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 5,316 | $470.0K | 0.00% | +261+5.2% | Added |
| Deutsche Bank AG | 5,043 | $445.9K | 0.00% | +603+13.6% | Added |
| Alliancebernstein L.P. | 5,302 | $416.2K | 0.00% | −122−2.2% | Reduced |
| LPL Financial LLC | 4,553 | $402.6K | 0.00% | −431−8.6% | Reduced |
| Quantinno Capital Management LP | 4,318 | $381.8K | 0.00% | +657+17.9% | Added |
| Inceptionr LLC | 4,078 | $360.6K | 0.09% | +4,078 | New |
| Acadian Asset Management LLC | 3,863 | $341.0K | 0.00% | −5,802−60.0% | Reduced |
| Engineers Gate Manager LP | 3,766 | $333.0K | 0.00% | +735+24.2% | Added |
| Price T Rowe Associates Inc | 3,637 | $322.0K | 0.00% | +496+15.8% | Added |
| JPMorgan Chase & Co | 3,687 | $313.7K | 0.00% | −413−10.1% | Reduced |
| EntryPoint Capital, LLC | 3,469 | $306.7K | 0.09% | 00.0% | Unchanged |
| Kings Path Partners LLC | 3,405 | $301.1K | 0.10% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 3,329 | $294.4K | 0.01% | −394−10.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 3,224 | $293.6K | 0.00% | +3,224 | New |
| Squarepoint Ops LLC | 3,187 | $281.8K | 0.00% | +440+16.0% | Added |
| Mercer Global Advisors Inc | 3,100 | $274.1K | 0.00% | +3,100 | New |
| Skopos Labs, Inc. | 2,913 | $257.5K | 0.01% | −663−18.5% | Reduced |
| MetLife Investment Management | 2,888 | $255.4K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 2,667 | $236.0K | 0.00% | −942−26.1% | Reduced |
| State Board of Administration of Florida Retirement System | 2,564 | $226.7K | 0.00% | 00.0% | Unchanged |
| Man Group plc | 2,477 | $219.0K | 0.00% | −10,910−81.5% | Reduced |
| Captrust Financial Advisors | 2,361 | $208.7K | 0.00% | +2,361 | New |
| New York State Common Retirement Fund | 2,143 | $189.5K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 1,992 | $176.1K | 0.00% | +1,992 | New |
| Wells Fargo & Company | 1,916 | $169.4K | 0.00% | −3,836−66.7% | Reduced |
| US Bancorp | 1,461 | $129.2K | 0.00% | +124+9.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 1,331 | $117.7K | 0.00% | 00.0% | Unchanged |