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, Q2 2026
Institutional positions in Mesa Laboratories Inc as of Jun 30, 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
- 159
- +2 vs. Q1 2026
- Shares held
- 5.03M
- +281.7K (+5.9%) vs. Q1 2026
- Total value
- $500.8M
- +$81.1M (+19.3%) vs. Q1 2026
- New holders
- 20
- 73 more added
- Sold out
- 18
- 38 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Mesa Laboratories Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Globeflex Capital L P | 11,581 | $1.15M | 0.15% | +743+6.9% | Added |
| Invesco Ltd. | 11,862 | $1.18M | 0.00% | −2,241−15.9% | Reduced |
| Principal Financial Group Inc | 12,069 | $1.20M | 0.00% | +981+8.8% | Added |
| Ieq Capital, LLC | 13,580 | $1.35M | 0.01% | +3,922+40.6% | Added |
| Nuveen, LLC | 13,896 | $1.38M | 0.00% | +3,757+37.1% | Added |
| NFJ Investment Group, LLC | 14,256 | $1.42M | 0.05% | +14,256 | New |
| Wells Fargo & Company | 14,386 | $1.43M | 0.00% | +12,470+650.8% | Added |
| Mariner, LLC | 14,407 | $1.43M | 0.00% | +5,441+60.7% | Added |
| Engineers Gate Manager LP | 14,731 | $1.47M | 0.02% | +10,965+291.2% | Added |
| Royal Bank of Canada | 14,803 | $1.47M | 0.00% | +1,528+11.5% | Added |
| Creative Planning | 16,615 | $1.65M | 0.00% | +1,621+10.8% | Added |
| King Luther Capital Management Corp | 17,411 | $1.73M | 0.01% | 00.0% | Unchanged |
| XTX Topco Ltd | 17,475 | $1.74M | 0.02% | +11,274+181.8% | Added |
| Numerai GP LLC | 17,769 | $1.77M | 0.14% | +6,817+62.2% | Added |
| Segall Bryant & Hamill, LLC | 18,108 | $1.80M | 0.02% | −66−0.4% | Reduced |
| State of Wisconsin Investment Board | 18,906 | $1.88M | 0.00% | −100−0.5% | Reduced |
| Rice Hall James & Associates, LLC | 18,968 | $1.89M | 0.09% | +4,746+33.4% | Added |
| American Century Companies Inc | 20,364 | $2.03M | 0.00% | +6,991+52.3% | Added |
| Franklin Resources Inc | 21,905 | $2.18M | 0.00% | +352+1.6% | Added |
| Point72 Asset Management, L.P. | 22,514 | $2.24M | 0.00% | +6,205+38.0% | Added |
| Man Group plc | 24,070 | $2.40M | 0.00% | +21,593+871.7% | Added |
| BBR Partners, LLC | 25,195 | $2.51M | 0.12% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 28,900 | $2.88M | 0.00% | −2,700−8.5% | Reduced |
| Two Sigma Investments, LP | 29,239 | $2.91M | 0.00% | +12,880+78.7% | Added |
| Jupiter Topco LLC | 30,996 | $3.09M | 0.00% | +30,996 | New |
| Citadel Advisors LLC | 35,890 | $3.57M | 0.00% | +27,467+326.1% | Added |
| Qube Research & Technologies Ltd | 37,402 | $3.72M | 0.00% | +37,402 | New |
| Vanguard Fiduciary Trust Co | 39,536 | $3.94M | 0.00% | +1,199+3.1% | Added |
| Herald Investment Management Ltd | 42,500 | $4.23M | 0.57% | −7,500−15.0% | Reduced |
| Bank of New York Mellon Corp | 45,602 | $4.54M | 0.00% | +1,665+3.8% | Added |
| Bank of America Corp | 49,952 | $4.97M | 0.00% | −7,919−13.7% | Reduced |
| Charles Schwab Investment Management Inc | 54,463 | $5.42M | 0.00% | −7,961−12.8% | Reduced |
| Monimus Capital Management, LP | 55,344 | $5.51M | 1.40% | −45,948−45.4% | Reduced |
| Gabelli Funds LLC | 62,499 | $6.22M | 0.04% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 64,322 | $6.40M | 0.00% | −6,295−8.9% | Reduced |
| Northern Trust Corp | 65,745 | $6.54M | 0.00% | −3,519−5.1% | Reduced |
| Meros Investment Management, LP | 67,962 | $6.77M | 2.15% | −70−0.1% | Reduced |
| Vanguard Portfolio Management LLC | 69,350 | $6.90M | 0.00% | +16,764+31.9% | Added |
| Jane Street Group, LLC | 71,580 | $7.13M | 0.00% | +71,580 | New |
| D. E. Shaw & Co., Inc. | 81,755 | $8.14M | 0.01% | +27,197+49.8% | Added |
| FMR LLC | 88,857 | $8.85M | 0.00% | +82,387+1,273.4% | Added |
| Crawford Investment Counsel Inc | 98,805 | $9.84M | 0.16% | +3,270+3.4% | Added |
| Royce & Associates LP | 113,395 | $11.3M | 0.09% | −47,834−29.7% | Reduced |
| Wasatch Advisors Inc | 115,668 | $11.5M | 0.08% | +64,435+125.8% | Added |
| Russell Investments Group, Ltd. | 121,845 | $12.1M | 0.01% | −13,224−9.8% | Reduced |
| State Street Corp | 124,292 | $12.4M | 0.00% | +2,224+1.8% | Added |
| Jacobs Levy Equity Management, Inc | 130,838 | $13.0M | 0.05% | +86,421+194.6% | Added |
| Kennedy Capital Management, Inc. | 138,301 | $13.8M | 0.24% | −4,042−2.8% | Reduced |
| Geode Capital Management, LLC | 139,682 | $13.9M | 0.00% | +11,680+9.1% | Added |
| Dimensional Fund Advisors LP | 148,395 | $14.8M | 0.00% | +23,765+19.1% | Added |
| Raymond James Financial Inc | 149,937 | $14.9M | 0.00% | +27,026+22.0% | Added |
| Diamond Hill Capital Management Inc | 155,771 | $15.5M | 0.12% | +469+0.3% | Added |
| Morgan Stanley | 156,979 | $15.6M | 0.00% | −5,137−3.2% | Reduced |
| Ranger Investment Management, L.P. | 173,988 | $17.3M | 1.10% | −28,915−14.3% | Reduced |
| AQR Capital Management LLC | 203,739 | $20.3M | 0.01% | +33,177+19.5% | Added |
| Vanguard Capital Management LLC | 237,457 | $23.6M | 0.00% | +4,814+2.1% | Added |
| Boston Partners | 265,149 | $26.4M | 0.02% | −3,562−1.3% | Reduced |
| BlackRock, Inc. | 440,552 | $43.9M | 0.00% | +46,701+11.9% | Added |
| Long Path Partners LP | 477,126 | $47.5M | 20.24% | +71,543+17.6% | Added |
| Select Equity Group, L.P. | 0 | $0 | 0.00% | −235,885−100.0% | Sold out |
| Roubaix Capital, LLC | 0 | $0 | 0.00% | −72,115−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −20,328−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −18,661−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −13,722−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −9,517−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −6,874−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −4,078−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −3,863−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −3,469−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −3,187−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −2,667−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −198−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −74−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |