MESA LABORATORIES INC /CO/ (MLAB) — Institutional Holders, Q2 2026
160 institutional investment managers reported a MLAB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $500.9M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MLAB in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- JACOBS LEVY EQUITY MANAGEMENTAdded · +86,421 sh+$8.6M
- FMRAdded · +82,387 sh+$8.2M
- JANE STREET GROUPNew · +71,580 sh+$7.1M
- Long Path PartnersAdded · +71,543 sh+$7.1M
- WASATCH ADVISORSAdded · +64,435 sh+$6.4M
Biggest sellers
- Select Equity Group, L.P.Sold out · -235,885 sh-$23.5M
- Roubaix CapitalSold out · -72,115 sh-$7.2M
- ROYCE & ASSOCIATESTrimmed · -47,834 sh-$4.8M
- MONIMUS CAPITAL MANAGEMENTTrimmed · -45,948 sh-$4.6M
- Ranger Investment Management, L.P.Trimmed · -28,915 sh-$2.9M
MLAB 13F holders ranked 1–100 of 160
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Long Path Partners#1 · 477,126 sh | 477,126 | $47.5M | 20.24% | +17.6% |
| 2 | BlackRock#2 · 440,552 sh | 440,552 | $43.9M | <0.01% | +11.9% |
| 3 | Boston Partners#3 · 265,149 sh | 265,149 | $26.4M | 0.02% | -1.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 237,457 sh | 237,457 | $23.6M | <0.01% | +2.1% |
| 5 | AQR CAPITAL MANAGEMENT#5 · 203,739 sh | 203,739 | $20.3M | <0.01% | +19.5% |
| 6 | Ranger Investment Management, L.P.#6 · 173,988 sh | 173,988 | $17.3M | 1.10% | -14.3% |
| 7 | MORGAN STANLEY#7 · 156,979 sh | 156,979 | $15.6M | <0.01% | -3.2% |
| 8 | DIAMOND HILL CAPITAL MANAGEMENT#8 · 155,771 sh | 155,771 | $15.5M | 0.12% | +0.3% |
| 9 | RAYMOND JAMES FINANCIAL#9 · 149,937 sh | 149,937 | $14.9M | <0.01% | +22.0% |
| 10 | DIMENSIONAL FUND ADVISORS#10 · 148,395 sh | 148,395 | $14.8M | <0.01% | +19.1% |
| 11 | GEODE CAPITAL MANAGEMENT#11 · 139,682 sh | 139,682 | $13.9M | <0.01% | +9.1% |
| 12 | KENNEDY CAPITAL MANAGEMENT#12 · 138,301 sh | 138,301 | $13.8M | 0.24% | -2.8% |
| 13 | JACOBS LEVY EQUITY MANAGEMENT#13 · 130,838 sh | 130,838 | $13.0M | 0.05% | +194.6% |
| 14 | STATE STREET#14 · 124,292 sh | 124,292 | $12.4M | <0.01% | +1.8% |
| 15 | Russell Investments Group, Ltd.#15 · 121,845 sh | 121,845 | $12.1M | 0.01% | -9.8% |
| 16 | WASATCH ADVISORS#16 · 115,668 sh | 115,668 | $11.5M | — | +125.8% |
| 17 | ROYCE & ASSOCIATES#17 · 113,395 sh | 113,395 | $11.3M | 0.09% | -29.7% |
| 18 | CRAWFORD INVESTMENT COUNSEL#18 · 98,805 sh | 98,805 | $9.8M | 0.16% | +3.4% |
| 19 | FMR#19 · 88,857 sh | 88,857 | $8.8M | <0.01% | +1273.4% |
| 20 | D. E. Shaw#20 · 81,755 sh | 81,755 | $8.1M | <0.01% | +49.8% |
| 21 | JANE STREET GROUP#21 · 71,580 sh | 71,580 | $7.1M | <0.01% | New |
| 22 | VANGUARD PORTFOLIO MANAGEMENT#22 · 69,350 sh | 69,350 | $6.9M | <0.01% | +31.9% |
| 23 | Meros Investment Management#23 · 67,962 sh | 67,962 | $6.8M | 2.15% | -0.1% |
| 24 | NORTHERN#24 · 65,745 sh | 65,745 | $6.5M | <0.01% | -5.1% |
| 25 | GOLDMAN SACHS GROUP#25 · 64,322 sh | 64,322 | $6.4M | <0.01% | -8.9% |
| 26 | GABELLI FUNDS#26 · 62,499 sh | 62,499 | $6.2M | 0.04% | 0.0% |
| 27 | MONIMUS CAPITAL MANAGEMENT#27 · 55,344 sh | 55,344 | $5.5M | 1.28% | -45.4% |
| 28 | CHARLES SCHWAB INVESTMENT MANAGEMENT#28 · 54,463 sh | 54,463 | $5.4M | <0.01% | -12.8% |
| 29 | BANK OF AMERICA#29 · 49,952 sh | 49,952 | $5.0M | <0.01% | -13.7% |
| 30 | Bank of New York Mellon#30 · 45,602 sh | 45,602 | $4.5M | <0.01% | +3.8% |
| 31 | Herald Investment Management Ltd#31 · 42,500 sh | 42,500 | $4.2M | — | -15.0% |
| 32 | VANGUARD FIDUCIARY#32 · 39,536 sh | 39,536 | $3.9M | <0.01% | +3.1% |
| 33 | Qube Research & Technologies Ltd#33 · 37,402 sh | 37,402 | $3.7M | <0.01% | New |
| 34 | CITADEL ADVISORS#34 · 35,890 sh | 35,890 | $3.6M | <0.01% | +326.1% |
| 35 | Jupiter Topco#35 · 30,996 sh | 30,996 | $3.1M | <0.01% | — |
| 36 | TWO SIGMA INVESTMENTS#36 · 29,239 sh | 29,239 | $2.9M | <0.01% | +78.7% |
| 37 | RENAISSANCE TECHNOLOGIES#37 · 28,900 sh | 28,900 | $2.9M | <0.01% | -8.5% |
| 38 | BBR PARTNERS#38 · 25,195 sh | 25,195 | $2.5M | 0.12% | 0.0% |
| 39 | Man Group plc#39 · 24,070 sh | 24,070 | $2.4M | <0.01% | +871.7% |
| 40 | Point72 Asset Management, L.P.#40 · 22,514 sh | 22,514 | $2.2M | <0.01% | +38.0% |
| 41 | FRANKLIN RESOURCES#41 · 21,905 sh | 21,905 | $2.2M | <0.01% | +1.6% |
| 42 | AMERICAN CENTURY COMPANIES#42 · 20,364 sh | 20,364 | $2.0M | <0.01% | +52.3% |
| 43 | RICE HALL JAMES & ASSOCIATES#43 · 18,968 sh | 18,968 | $1.9M | 0.09% | +33.4% |
| 44 | STATE OF WISCONSIN INVESTMENT BOARD#44 · 18,906 sh | 18,906 | $1.9M | <0.01% | -0.5% |
| 45 | SEGALL BRYANT & HAMILL#45 · 18,108 sh | 18,108 | $1.8M | 0.02% | -0.4% |
| 46 | Numerai GP#46 · 17,769 sh | 17,769 | $1.8M | 0.14% | +62.2% |
| 47 | XTX Topco Ltd#47 · 17,475 sh | 17,475 | $1.7M | 0.02% | +181.8% |
| 48 | KING LUTHER CAPITAL MANAGEMENT#48 · 17,411 sh | 17,411 | $1.7M | <0.01% | 0.0% |
| 49 | Creative Planning#49 · 16,615 sh | 16,615 | $1.7M | <0.01% | +10.8% |
| 50 | ROYAL BANK OF CANADA#50 · 14,803 sh | 14,803 | $1.5M | <0.01% | +11.5% |
| 51 | Engineers Gate Manager#51 · 14,731 sh | 14,731 | $1.5M | 0.02% | +291.2% |
| 52 | Mariner#52 · 14,407 sh | 14,407 | $1.4M | <0.01% | +60.7% |
| 53 | WELLS FARGO & COMPANY#53 · 14,386 sh | 14,386 | $1.4M | <0.01% | +650.8% |
| 54 | NFJ INVESTMENT GROUP#54 · 14,256 sh | 14,256 | $1.4M | 0.05% | New |
| 55 | Nuveen#55 · 13,896 sh | 13,896 | $1.4M | <0.01% | +37.1% |
| 56 | IEQ CAPITAL#56 · 13,580 sh | 13,580 | $1.4M | <0.01% | +40.6% |
| 57 | PRINCIPAL FINANCIAL GROUP#57 · 12,069 sh | 12,069 | $1.2M | <0.01% | +8.8% |
| 58 | Invesco Ltd.#58 · 11,862 sh | 11,862 | $1.2M | <0.01% | -15.9% |
| 59 | GLOBEFLEX CAPITAL L P#59 · 11,581 sh | 11,581 | $1.2M | 0.15% | +6.9% |
| 60 | STIFEL FINANCIAL#60 · 11,202 sh | 11,202 | $1.1M | <0.01% | -1.4% |
| 61 | Y-Intercept (Hong Kong) Ltd#61 · 10,010 sh | 10,010 | $996.5K | — | +58.5% |
| 62 | ENVESTNET ASSET MANAGEMENT#62 · 8,816 sh | 8,816 | $877.7K | <0.01% | +2.2% |
| 63 | MARSHALL WACE, LLP#63 · 8,740 sh | 8,740 | $870.1K | <0.01% | New |
| 64 | CM WEALTH ADVISORS#64 · 8,341 sh | 8,341 | $830.3K | 0.15% | New |
| 65 | GAMCO INVESTORS, ET AL#65 · 8,340 sh | 8,340 | $830.2K | <0.01% | +6.5% |
| 66 | UBS Group AG#66 · 7,773 sh | 7,773 | $773.8K | <0.01% | -35.5% |
| 67 | CenterBook Partners#67 · 7,739 sh | 7,739 | $770.4K | 0.04% | -45.5% |
| 68 | Quadrature Capital Ltd#68 · 7,682 sh | 7,682 | $764.7K | <0.01% | -11.6% |
| 69 | Vident Advisory#69 · 7,608 sh | 7,608 | $757.4K | <0.01% | 0.0% |
| 70 | Cerity Partners#70 · 7,413 sh | 7,413 | $738.0K | <0.01% | +2.3% |
| 71 | LOS ANGELES CAPITAL MANAGEMENT#71 · 7,388 sh | 7,388 | $735.5K | <0.01% | New |
| 72 | Quantinno Capital Management#72 · 7,067 sh | 7,067 | $703.5K | <0.01% | +63.7% |
| 73 | SEI INVESTMENTS#73 · 6,759 sh | 6,759 | $672.9K | <0.01% | -8.7% |
| 74 | MERCER GLOBAL ADVISORS#74 · 6,756 sh | 6,756 | $672.6K | <0.01% | +117.9% |
| 75 | RHUMBLINE ADVISERS#75 · 6,560 sh | 6,560 | $653.0K | <0.01% | +0.2% |
| 76 | CANADA PENSION PLAN INVESTMENT BOARD#76 · 6,300 sh | 6,300 | $627.2K | <0.01% | -7.4% |
| 77 | LPL Financial#77 · 6,044 sh | 6,044 | $601.7K | <0.01% | +32.7% |
| 78 | ALLIANCEBERNSTEIN L.P.#78 · 6,500 sh | 6,500 | $574.7K | <0.01% | +22.6% |
| 79 | MIRAE ASSET GLOBAL ETFS Ltd.#79 · 5,607 sh | 5,607 | $558.2K | <0.01% | +5.5% |
| 80 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#80 · 5,445 sh | 5,445 | $542.0K | <0.01% | +112.4% |
| 81 | DEUTSCHE BANK AG\#81 · 5,380 sh | 5,380 | $535.6K | <0.01% | +6.7% |
| 82 | Brevan Howard Capital Management#82 · 4,489 sh | 4,489 | $446.9K | <0.01% | New |
| 83 | PRICE T ROWE ASSOCIATES#83 · 4,393 sh | 4,393 | $438.0K | 0.00% | +20.8% |
| 84 | Magnetar Financial#84 · 4,139 sh | 4,139 | $412.0K | <0.01% | New |
| 85 | WEALTH ENHANCEMENT ADVISORY SERVICES#85 · 4,275 sh | 4,275 | $408.7K | — | +32.6% |
| 86 | JPMORGAN CHASE#86 · 3,949 sh | 3,949 | $393.0K | 0.00% | +7.1% |
| 87 | STRS OHIO#87 · 3,700 sh | 3,700 | $368.3K | <0.01% | New |
| 88 | SEIZERT CAPITAL PARTNERS#88 · 3,446 sh | 3,446 | $343.0K | 0.01% | New |
| 89 | CAPTRUST FINANCIAL ADVISORS#89 · 3,273 sh | 3,273 | $325.8K | <0.01% | +38.6% |
| 90 | PRELUDE CAPITAL MANAGEMENT#90 · 3,141 sh | 3,141 | $312.7K | 0.02% | New |
| 91 | MetLife Investment Management#91 · 3,094 sh | 3,094 | $308.0K | <0.01% | +7.1% |
| 92 | Dynamic Technology Lab Private Ltd#92 · 2,921 sh | 2,921 | $291.0K | 0.07% | New |
| 93 | Graham Capital Management, L.P.#93 · 2,859 sh | 2,859 | $284.6K | <0.01% | -14.1% |
| 94 | Integrated Quantitative Investments#94 · 2,590 sh | 2,590 | $257.8K | 0.04% | New |
| 95 | CITIGROUP#95 · 2,510 sh | 2,510 | $249.9K | <0.01% | +574.7% |
| 96 | Kings Path Partners#96 · 2,433 sh | 2,433 | $242.2K | — | -28.5% |
| 97 | Corient Private Wealth#97 · 2,423 sh | 2,423 | $241.2K | <0.01% | New |
| 98 | Topline Capital Management#98 · 2,374 sh | 2,374 | $236.3K | 0.06% | New |
| 99 | Baird Financial Group#99 · 2,325 sh | 2,325 | $231.5K | <0.01% | New |
| 100 | NEW YORK STATE COMMON RETIREMENT FUND#100 · 2,143 sh | 2,143 | $213.3K | <0.01% | 0.0% |
Funds that sold out of MLAB in Q2 2026 (18)
Held MLAB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Select Equity Group, L.P.235,885 sh | 235,885 | $20.9M |
| Roubaix Capital72,115 sh | 72,115 | $6.4M |
| LAZARD ASSET MANAGEMENT20,328 sh | 20,328 | $1.8M |
| Trexquant Investment18,661 sh | 18,661 | $1.7M |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO13,722 sh | 13,722 | $1.2M |
| Connor, Clark & Lunn Investment Management Ltd.9,517 sh | 9,517 | $841.5K |
| TUDOR INVESTMENT ET AL6,874 sh | 6,874 | $607.8K |
| INCEPTIONR4,078 sh | 4,078 | $360.6K |
| ACADIAN ASSET MANAGEMENT3,863 sh | 3,863 | $341.0K |
| EntryPoint Capital3,469 sh | 3,469 | $306.7K |
| Squarepoint Ops3,187 sh | 3,187 | $281.8K |
| SG Americas Securities2,667 sh | 2,667 | $236.0K |
| QUADRANT CAPITAL GROUP10 sh | 10 | $49.4K |
| MAI Capital Management198 sh | 198 | $17.5K |
| Root Financial Partners74 sh | 74 | $6.5K |
| Sound Income Strategies40 sh | 40 | $3.6K |
| Wealth Preservation Advisors25 sh | 25 | $2.2K |
| Caitong International Asset Management , Ltd4 sh | 4 | $354.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.