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.
Q2 2026 vs. Q1 2026
How the institutions holding Mesa Laboratories Inc changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 161 | 4 | 159 | +2 |
| Shares | 4.83M | 78.1K | 5.03M | +281.7K (+5.9%) |
| Value | $426.6M | $6.91M | $500.8M | +$81.1M (+19.3%) |
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (20)
Institutions that held Mesa Laboratories Inc at the end of Q2 2026 but not at the end of Q1 2026.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Jane Street Group, LLC | 71,580 | $7.13M | 0.00% |
| Qube Research & Technologies Ltd | 37,402 | $3.72M | 0.00% |
| Jupiter Topco LLC | 30,996 | $3.09M | 0.00% |
| NFJ Investment Group, LLC | 14,256 | $1.42M | 0.05% |
| Marshall Wace, LLP | 8,740 | $870.1K | 0.00% |
| CM Wealth Advisors LLC | 8,341 | $830.3K | 0.15% |
| Brevan Howard Capital Management LP | 4,489 | $446.9K | 0.01% |
| Magnetar Financial LLC | 4,139 | $412.0K | 0.00% |
| STRS Ohio | 3,700 | $368.3K | 0.00% |
| Seizert Capital Partners, LLC | 3,446 | $343.0K | 0.01% |
| Prelude Capital Management, LLC | 3,141 | $312.7K | 0.02% |
| Dynamic Technology Lab Private Ltd | 2,921 | $291.0K | 0.07% |
| Integrated Quantitative Investments LLC | 2,590 | $257.8K | 0.04% |
| CI Private Wealth, LLC | 2,423 | $241.2K | 0.00% |
| Topline Capital Management, LLC | 2,374 | $236.3K | 0.06% |
| Baird Financial Group, Inc. | 2,325 | $231.5K | 0.00% |
| Global Retirement Partners, LLC | 259 | $25.8K | 0.00% |
| Wealth Enhancement Trust Services, Inc. | 20 | $1.99K | 0.00% |
| Quarry LP | 19 | $1.89K | 0.00% |
| Clearstead Advisors, LLC | 13 | $1.29K | 0.00% |
Sold out (18)
Institutions that held Mesa Laboratories Inc at the end of Q1 2026 and filed for Q2 2026 without it.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Select Equity Group, L.P. | 235,885 | $20.9M |
| Roubaix Capital, LLC | 72,115 | $6.38M |
| Lazard Asset Management LLC | 20,328 | $1.80M |
| Trexquant Investment LP | 18,661 | $1.65M |
| Public Employees Retirement System of Ohio | 13,722 | $1.21M |
| Connor, Clark & Lunn Investment Management Ltd. | 9,517 | $841.5K |
| Tudor Investment Corp Et Al | 6,874 | $607.8K |
| Inceptionr LLC | 4,078 | $360.6K |
| Acadian Asset Management LLC | 3,863 | $341.0K |
| EntryPoint Capital, LLC | 3,469 | $306.7K |
| Squarepoint Ops LLC | 3,187 | $281.8K |
| SG Americas Securities, LLC | 2,667 | $236.0K |
| MAI Capital Management | 198 | $17.5K |
| Root Financial Partners, LLC | 74 | $6.54K |
| Sound Income Strategies, LLC | 40 | $3.55K |
| Wealth Preservation Advisors, LLC | 25 | $2.21K |
| Quadrant Capital Group LLC | 5 | $443 |
| Caitong International Asset Management Co., Ltd | 4 | $354 |
Not filed for Q2 2026 yet (4)
Institutions that held Mesa Laboratories Inc at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Janus Henderson Group PLC | 69,401 | $6.14M |
| CWM, LLC | 5,809 | $513.6K |
| Skopos Labs, Inc. | 2,913 | $257.5K |
| Sunbelt Securities, Inc. | 5 | $442 |