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MLAB — MESA LABS INC

Reported value held$211.08M
Funds holding (latest)41
SectorIndustrials
Funds holding (Q2 2026)29
Institutional value$170.96M · 1.72M sh
New / Add / Cut / Exit2 / 17 / 10 / 2
Top-5 / Top-10 concentration61.4% / 82.1%
Institutional holdings change Accumulating +6.2% (+101.07K sh)
Institutional value change Up +19.6%

As of Q2 2026, 29 SEC-registered investment managers reported holding MLAB (MESA LABS INC) in their latest 13F filings, with a combined reported value of $170.96M across 1.72M shares. That is +6.2% by share count (+101.07K shares) versus the previous quarter, while reported value moved +19.6%. Ownership is concentrated: the five largest holders account for 61.4% of reported value and the top ten for 82.1%.

Compared with the prior quarter, 2 opened new positions, 17 added to existing stakes, 10 trimmed, 2 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

MLAB is classified in the Industrials sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 440.55K $43.86M 0.00% Add
Vanguard Group history Q4 2025 321.90K $25.27M 0.00% Hold
AQR Capital Management history Q2 2026 203.74K $20.28M 0.01% Add
Morgan Stanley history Q2 2026 156.98K $15.63M 0.00% Reduce
Geode Capital Management history Q2 2026 139.68K $13.91M 0.00% Add
Royce & Associates history Q2 2026 113.39K $11.29M 0.09% Reduce
Fidelity Management & Research (FMR) history Q2 2026 88.86K $8.85M 0.00% Add
D. E. Shaw & Co history Q2 2026 81.75K $8.14M 0.00% Add
Northern Trust Corp history Q2 2026 65.75K $6.54M 0.00% Reduce
Goldman Sachs Group history Q2 2026 64.32K $6.40M 0.00% Reduce
Janus Henderson Group history Q1 2026 69.40K $6.14M 0.00% Reduce
Charles Schwab Investment Management history Q2 2026 54.46K $5.42M 0.00% Reduce
Bank of America Corp history Q2 2026 49.95K $4.97M 0.00% Reduce
BNY Mellon history Q2 2026 45.60K $4.54M 0.00% Add
Citadel Advisors history Q2 2026 35.89K $3.57M 0.00% Add
Two Sigma Investments history Q2 2026 29.24K $2.91M 0.00% Add
Renaissance Technologies history Q2 2026 28.90K $2.88M 0.00% Reduce
Point72 Asset Management history Q2 2026 22.51K $2.24M 0.00% Add
Franklin Resources history Q2 2026 21.91K $2.18M 0.00% Add
Wellington Management Group history Q2 2025 22.47K $2.12M 0.00% New

View all 41 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 836.82K 844.36K 827.62K 791.13K 388.80K 398.67K 393.85K 440.55K
AQR Capital Management — — — — — — — 8.17K 14.71K 17.79K 21.63K 18.00K 11.43K 10.88K 8.16K 7.73K 32.64K 70.14K 170.56K 203.74K
Morgan Stanley 18.30K 21.53K 26.36K 35.24K 29.02K 263.74K 257.57K 250.60K 243.35K 261.32K 251.42K 237.59K 249.35K 240.53K 216.29K 218.80K 254.97K 175.59K 162.12K 156.98K
Geode Capital Management 86.69K 90.27K 92.92K 92.77K 92.59K 95.89K 100.04K 102.76K 105.09K 111.11K 112.86K 118.99K 124.76K 124.45K 137.52K 138.77K 127.86K 127.95K 128.00K 139.68K
Royce & Associates 341.20K 342.76K 356.64K 277.47K 251.18K 160.58K 157.90K 159.61K 166.02K 269.64K 283.74K 394.50K 347.14K 287.21K 271.12K 247.61K 148.56K 153.35K 161.23K 113.39K
Fidelity Management & Research (FMR) 23 23 140 250 788 165 285 360 411 496 523 293 393 1.38K 2.90K 2.92K 606 846 6.47K 88.86K
D. E. Shaw & Co — — — — — — — 2.61K 4.21K 5.92K 3.98K — — — — 8.66K 32.81K 76.56K 54.56K 81.75K
Northern Trust Corp 83.42K 81.88K 83.02K 89.53K 84.47K 84.49K 86.78K 92.99K 94.90K 81.52K 92.03K 90.35K 91.96K 93.79K 82.44K 92.73K 71.97K 65.65K 69.26K 65.75K
Goldman Sachs Group 19.46K 11.67K 9.91K 4.22K 6.89K 16.21K 15.41K 29.24K 87.17K 66.12K 7.98K 9.23K 15.94K 29.93K 15.33K 29.43K 41.78K 55.27K 70.62K 64.32K
Charles Schwab Investment Management 35.72K 36.49K 37.41K 37.03K 36.85K 38.19K 38.53K 38.79K 40.50K 41.39K 44.28K 45.16K 62.61K 62.59K 65.46K 61.76K 54.60K 61.91K 62.42K 54.46K
Bank of America Corp 32.77K 32.40K 29.80K 28.61K 29.61K 32.44K 35.83K 33.68K 47.64K 38.72K 48.86K 51.53K 53.61K 68.47K 67.31K 64.93K 47.10K 54.66K 57.87K 49.95K
BNY Mellon 60.14K 59.28K 55.05K 52.84K 200.00K 65.90K 63.15K 59.54K 56.26K 61.09K 59.51K 58.56K 53.96K 53.30K 54.77K 53.50K 33.68K 44.77K 43.94K 45.60K
Citadel Advisors 2.43K 1.54K 14.83K 4.60K 22.28K 50.54K 4.43K 46.99K 26.14K 27.27K 33.78K 24.70K 10.71K 6.82K 6.08K 26.87K 34.18K 58.52K 8.42K 35.89K
Two Sigma Investments 800 — — — 1.90K — — 2.15K — — — — — — — — 9.62K 12.23K 16.36K 29.24K
Renaissance Technologies 27.10K 15.88K 13.10K 13.10K 8.20K 17.93K 9.70K 23.00K 8.80K 30.40K 16.10K 2.40K 13.40K 7.50K 8.20K 68.03K 10.90K 3.50K 31.60K 28.90K
Point72 Asset Management — — — — 36.16K 78.01K 17.90K 100 — — 20.77K 7.84K — — — — — 13.46K 16.31K 22.51K
Franklin Resources — — — — — — — 2.48K 2.47K 2.46K 4.29K 5.04K 6.44K 3.29K 3.29K 3.48K — 22.07K 21.55K 21.91K
Wells Fargo & Co 33.10K 35.49K 56.59K 56.04K 64.06K 61.33K 68.79K 67.56K 64.41K 35.69K 32.60K 32.52K 30.80K 29.30K 30.02K 18.14K 5.18K 5.75K 1.92K 14.39K
Principal Global Investors 73.88K 90.73K 112.75K 128.33K 138.59K 150.52K 163.69K 158.64K 154.76K 28.83K 29.72K 28.82K 35.11K 38.36K 43.66K 29.78K 10.06K 14.89K 11.09K 12.07K
Invesco Ltd 248.83K 275.65K 277.55K 276.52K 231.63K 232.43K 231.01K 21.59K 21.68K 18.85K 21.08K 19.80K 18.44K 18.51K 17.93K 17.80K 11.49K 12.85K 14.10K 11.86K

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