Security record · archived quarter
MLAB
Mesa Laboratories, Inc. · Healthcare · Medical - Specialties
67Tracked holders
0Δ holders
2.99MShares held
$297.50MReported value
+4New positions
−4Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +15.5% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 67 | 0 | 2.99M | $297.50M | +4 | −4 |
| Q1 2026 | 70 | 0 | 2.66M | $235.21M | +6 | −6 |
| Q4 2025 | 70 | +2 | 2.73M | $214.06M | +2 | — |
| Q3 2025 | 17 | +1 | 1.54M | $103.48M | +2 | −1 |
| Q2 2025 | 13 | +4 | 1.73M | $163.31M | +4 | — |
| Q1 2025 | 6 | -3 | 383.09K | $45.46M | — | −3 |
| Q4 2024 | 9 | +1 | 400.64K | $52.84M | +1 | — |
| Q3 2024 | 7 | 0 | 174.94K | $22.72M | +1 | −1 |
| Q2 2024 | 7 | — | 189.52K | $16.45M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 440.55K | +11.9% | $43.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | Boston Partners | 265.15K | -1.3% | $26.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | Boston Partners | 265.15K | -1.3% | $26.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Vanguard Capital Management Llc | 237.46K | +2.1% | $23.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 203.74K | +19.4% | $20.28M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 23 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 25 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 26 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 27 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 156.98K | -3.2% | $15.63M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 33 | Raymond James Financial Inc | 149.94K | +22.0% | $14.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Raymond James Financial Inc | 149.94K | +22.0% | $14.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Raymond James Financial Inc | 149.94K | +22.0% | $14.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Raymond James Financial Inc | 149.94K | +22.0% | $14.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Dimensional Fund Advisors Lp | 148.40K | +19.1% | $14.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Dimensional Fund Advisors Lp | 148.40K | +19.1% | $14.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Dimensional Fund Advisors Lp | 148.40K | +19.1% | $14.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Dimensional Fund Advisors Lp | 148.40K | +19.1% | $14.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | Geode Capital Management ✦ (passive) | 139.68K | +9.1% | $13.91M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 42 | Geode Capital Management ✦ (passive) | 139.68K | +9.1% | $13.91M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 43 | State Street Global Advisors ✦ (passive) | 124.29K | +1.8% | $12.37M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 44 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 47 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 48 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Russell Investments Group, Ltd. | 121.84K | -9.8% | $12.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Fidelity (FMR) ✦ | 88.86K | +1273.4% | $8.85M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 59 | Fidelity (FMR) ✦ | 88.86K | +1273.4% | $8.85M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 60 | D. E. Shaw & Co. ✦ | 81.75K | +49.9% | $8.14M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 61 | Jane Street Group, Llc | 71.58K | New | $7.13M | 0.0% | New | 1 | SEC ↗ |
| 62 | Jane Street Group, Llc | 71.58K | New | $7.13M | 0.0% | New | 1 | SEC ↗ |
| 63 | Northern Trust Corp | 65.75K | -5.1% | $6.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Northern Trust Corp | 65.75K | -5.1% | $6.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Northern Trust Corp | 65.75K | -5.1% | $6.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Northern Trust Corp | 65.75K | -5.1% | $6.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 67 | Northern Trust Corp | 65.75K | -5.1% | $6.54M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Goldman Sachs Group ✦ | 64.32K | -8.9% | $6.40M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 69 | Goldman Sachs Group ✦ | 64.32K | -8.9% | $6.40M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 70 | Charles Schwab Investment… | 54.46K | -12.8% | $5.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Bank Of America Corp /De/ | 49.95K | -13.7% | $4.97M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 72 | Bank Of America Corp /De/ | 49.95K | -13.7% | $4.97M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Bank Of America Corp /De/ | 49.95K | -13.7% | $4.97M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Bank of New York Mellon Corp | 45.60K | +3.8% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Bank of New York Mellon Corp | 45.60K | +3.8% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 76 | Bank of New York Mellon Corp | 45.60K | +3.8% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Bank of New York Mellon Corp | 45.60K | +3.8% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Bank of New York Mellon Corp | 45.60K | +3.8% | $4.54M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Qube Research & Technologies Ltd | 37.40K | New | $3.72M | 0.0% | New | 1 | SEC ↗ |
| 80 | Citadel Advisors ✦ | 35.89K | +326.1% | $3.57M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 81 | Two Sigma Investments ✦ | 29.24K | +78.7% | $2.91M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 82 | Renaissance Technologies ✦ | 28.90K | -8.5% | $2.88M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 83 | Man Group plc | 24.07K | +871.7% | $2.40M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Point72 Asset Management ✦ | 22.51K | +38.0% | $2.24M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Franklin Resources Inc | 21.91K | +1.6% | $2.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Franklin Resources Inc | 21.91K | +1.6% | $2.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Franklin Resources Inc | 21.91K | +1.6% | $2.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | Franklin Resources Inc | 21.91K | +1.6% | $2.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | American Century Companies Inc | 20.36K | +52.3% | $2.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | State Of Wisconsin Investment Board | 18.91K | -0.5% | $1.88M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Creative Planning | 16.61K | +10.8% | $1.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | Creative Planning | 16.61K | +10.8% | $1.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | Royal Bank Of Canada | 14.80K | +11.5% | $1.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 94 | Royal Bank Of Canada | 14.80K | +11.5% | $1.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 95 | Mariner, LLC | 14.41K | +60.7% | $1.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 96 | Wells Fargo & Company/Mn | 14.39K | +650.8% | $1.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 97 | Wells Fargo & Company/Mn | 14.39K | +650.8% | $1.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Wells Fargo & Company/Mn | 14.39K | +650.8% | $1.43M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Nuveen, LLC | 13.90K | +37.0% | $1.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 100 | Nuveen, LLC | 13.90K | +37.0% | $1.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Jane Street Group, Llc | $7.13M | 0.0% |
| Jane Street Group, Llc | $7.13M | 0.0% |
| Qube Research & Technologies… | $3.72M | 0.0% |
Exited
| Lazard Asset Management Llc | $1.80M | was 0.0% |
| Connor, Clark & Lunn… | $841,493 | was 0.0% |
| Tudor Investment Corp Et Al | $607,799 | was 0.0% |
| Squarepoint Ops LLC | $281,795 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 158 holders, 4.82M shares, $424.86M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Aug 13
Kadia Siddhartha
Officer · President and CEO · 7.09K sh @ 112.80 · $800,090
Aug 13
Tripeny R Tony
Director · 900 sh @ 113.69 · $102,321
Open-market sales (S)
Aug 13
Sullivan John James
Director · 7.09K sh · $800,090
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 07
SC 13G/A — Long Path Smaller Companies Fund, LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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