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 2025
Institutional positions in Mesa Laboratories Inc as of Jun 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
- 155
- +6 vs. Q1 2025
- Shares held
- 5.19M
- +184.9K (+3.7%) vs. Q1 2025
- Total value
- $489.1M
- −$105.0M (−17.7%) vs. Q1 2025
- New holders
- 25
- 48 more added
- Sold out
- 19
- 53 more reduced
2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Mesa Laboratories Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 8,665 | $816.4K | 0.00% | +8,665 | New |
| Barclays PLC | 10,170 | $958.2K | 0.00% | +3,472+51.8% | Added |
| Swiss National Bank | 10,402 | $980.1K | 0.00% | −200−1.9% | Reduced |
| Susquehanna International Group, LLP | 10,954 | $1.03M | 0.00% | +3,863+54.5% | Added |
| Herald Investment Management Ltd | 12,500 | $1.18M | 0.17% | 00.0% | Unchanged |
| Rhumbline Advisers | 12,793 | $1.21M | 0.00% | −835−6.1% | Reduced |
| American Century Companies Inc | 13,431 | $1.27M | 0.00% | +194+1.5% | Added |
| Public Employees Retirement System of Ohio | 13,722 | $1.29M | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 13,785 | $1.30M | 0.00% | +6,766+96.4% | Added |
| Legal & General Group Plc | 14,657 | $1.38M | 0.00% | +746+5.4% | Added |
| Nuveen, LLC | 15,924 | $1.50M | 0.00% | −3,500−18.0% | Reduced |
| UBS Asset Management Americas Inc | 17,403 | $1.64M | 0.00% | −2,574−12.9% | Reduced |
| Invesco Ltd. | 17,795 | $1.68M | 0.00% | −134−0.7% | Reduced |
| Wells Fargo & Company | 18,143 | $1.71M | 0.00% | −11,876−39.6% | Reduced |
| Segall Bryant & Hamill, LLC | 18,287 | $1.72M | 0.02% | −1,723−8.6% | Reduced |
| Public Sector Pension Investment Board | 18,528 | $1.75M | 0.01% | +1,272+7.4% | Added |
| Qube Research & Technologies Ltd | 19,898 | $1.87M | 0.00% | +16,190+436.6% | Added |
| King Luther Capital Management Corp | 19,921 | $1.88M | 0.01% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 20,483 | $1.93M | 0.00% | +1,425+7.5% | Added |
| Wellington Management Group LLP | 22,471 | $2.12M | 0.00% | +22,471 | New |
| Gabelli Funds LLC | 25,156 | $2.37M | 0.02% | +25,156 | New |
| BBR Partners, LLC | 25,195 | $2.37M | 0.15% | −2,400−8.7% | Reduced |
| Rice Hall James & Associates, LLC | 25,346 | $2.39M | 0.13% | −2,029−7.4% | Reduced |
| Citadel Advisors LLC | 26,873 | $2.53M | 0.00% | +20,791+341.8% | Added |
| Goldman Sachs Group Inc | 29,426 | $2.77M | 0.00% | +14,092+91.9% | Added |
| Principal Financial Group Inc | 29,778 | $2.81M | 0.00% | −13,881−31.8% | Reduced |
| UBS Group AG | 31,294 | $2.95M | 0.00% | +3,907+14.3% | Added |
| Meros Investment Management, LP | 36,618 | $3.45M | 1.64% | +4,654+14.6% | Added |
| Royal Bank of Canada | 37,278 | $3.51M | 0.00% | +6,506+21.1% | Added |
| Diamond Hill Capital Management Inc | 38,799 | $3.66M | 0.02% | +9,341+31.7% | Added |
| Comerica Bank | 44,263 | $4.17M | 0.02% | −220.0% | Reduced |
| Crawford Investment Counsel Inc | 51,744 | $4.88M | 0.09% | +25,544+97.5% | Added |
| Bank of New York Mellon Corp | 53,497 | $5.04M | 0.00% | −1,270−2.3% | Reduced |
| Millennium Management LLC | 57,710 | $5.44M | 0.00% | +57,710 | New |
| Charles Schwab Investment Management Inc | 61,764 | $5.82M | 0.00% | −3,700−5.7% | Reduced |
| Bank of America Corp | 64,928 | $6.12M | 0.00% | −2,379−3.5% | Reduced |
| Renaissance Technologies LLC | 68,027 | $6.41M | 0.01% | +59,827+729.6% | Added |
| Ameriprise Financial Inc | 73,513 | $6.93M | 0.00% | −93,255−55.9% | Reduced |
| Russell Investments Group, Ltd. | 79,476 | $7.49M | 0.01% | −7,580−8.7% | Reduced |
| Kennedy Capital Management, Inc. | 90,479 | $8.52M | 0.20% | −22,792−20.1% | Reduced |
| Northern Trust Corp | 92,732 | $8.74M | 0.00% | +10,288+12.5% | Added |
| Select Equity Group, L.P. | 102,198 | $9.63M | 0.04% | +28,301+38.3% | Added |
| Janus Henderson Group PLC | 113,285 | $10.7M | 0.01% | +32,541+40.3% | Added |
| Dimensional Fund Advisors LP | 115,284 | $10.9M | 0.00% | +4,037+3.6% | Added |
| Geode Capital Management, LLC | 138,769 | $13.1M | 0.00% | +1,253+0.9% | Added |
| Glenmede Investment Management, LP | 142,508 | $13.4M | 0.07% | +142,508 | New |
| Raymond James Financial Inc | 185,555 | $17.5M | 0.01% | −78,458−29.7% | Reduced |
| Geneva Capital Management LLC | 199,092 | $18.8M | 0.31% | +9,780+5.2% | Added |
| State Street Corp | 211,835 | $20.0M | 0.00% | −7,708−3.5% | Reduced |
| Ranger Investment Management, L.P. | 214,290 | $20.2M | 1.41% | −16,698−7.2% | Reduced |
| Morgan Stanley | 218,796 | $20.6M | 0.00% | +2,506+1.2% | Added |
| Royce & Associates LP | 247,606 | $23.3M | 0.24% | −23,512−8.7% | Reduced |
| Vanguard Group Inc | 389,409 | $36.7M | 0.00% | +4,796+1.2% | Added |
| Conestoga Capital Advisors, LLC | 566,150 | $53.3M | 0.79% | −5,208−0.9% | Reduced |
| BlackRock, Inc. | 791,127 | $74.5M | 0.00% | −36,489−4.4% | Reduced |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −11,360−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −5,247−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −2,820−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −2,700−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −2,461−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| Yousif Capital Management, LLC | 0 | $0 | 0.00% | −2,061−100.0% | Sold out |
| Avantax Advisory Services, Inc. | 0 | $0 | 0.00% | −2,036−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −1,879−100.0% | Sold out |
| Resona Asset Management Co.,Ltd. | 0 | $0 | 0.00% | −595−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −593−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −567−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Millstone Evans Group, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Versant Capital Management, Inc | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Glenmede Trust Co NA | – | – | – | – | Not filed |
| Keeley-Teton Advisors, LLC | – | – | – | – | Not filed |