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Mesa Laboratories Ownership | Who Owns Mesa Laboratories?

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Mesa Laboratories Ownership Summary

Mesa Laboratories is owned by 24.64% institutional investors, 5.47% insiders, and 69.89% retail investors. Blackrock is the largest institutional shareholder, holding 14.92% of MLAB shares. Conestoga Small Cap Investors is the top mutual fund, with 7.35% of its assets in Mesa Laboratories shares.

MLAB Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockMesa Laboratories24.64%5.47%69.89%
SectorTechnology Stocks 50.69%12.56%36.75%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock803.50K14.92%$69.72M
Conestoga capital advisors426.46K7.80%$28.58M
Blackrock funding, inc. /de388.80K7.11%$26.05M
Vanguard group321.72K5.89%$21.56M
Morgan stanley254.97K4.67%$17.09M
Ranger investment management209.70K3.84%$14.05M
Geneva capital management191.39K3.50%$12.82M
Simcoe capital management190.93K3.49%$12.79M
Eagle asset management149.66K2.78%$13.24M
Royce & associates lp148.56K2.72%$9.95M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Kent lake pr134.52K4.55%$9.01M
Roubaix capital76.66K2.39%$5.14M
Meros investment management, lp76.48K2.19%$5.12M
Simcoe capital management190.93K1.85%$12.79M
Monimus capital management, lp33.74K1.39%$2.26M
Ranger investment management209.70K0.98%$14.05M
Mason capital management70.30K0.96%$4.71M
Conestoga capital advisors426.46K0.46%$28.58M
Herald investment management50.00K0.45%$3.34M
Keeley-teton advisors22.00K0.34%$2.90M

Top Buyers

HolderShares% AssetsChange
Simcoe capital management190.93K1.85%190.93K
Kent lake pr134.52K4.55%134.52K
Boston partners114.36K0.01%108.94K
Diamond hill capital management123.38K0.04%84.58K
Roubaix capital76.66K2.39%76.66K

Top Sellers

HolderShares% AssetsChange
Blackrock funding, inc. /de388.80K0.00%-402.33K
Conestoga capital advisors426.46K0.46%-139.69K
Glenmede investment management, lp3.01K0.00%-139.50K
Raymond james financial47.40K0.00%-138.15K
Boone capital management---133.39K

New Positions

HolderShares% AssetsChangeValue
Simcoe capital management190.93K1.85%190.93K$12.79M
Kent lake pr134.52K4.55%134.52K$9.01M
Roubaix capital76.66K2.39%76.66K$5.14M
Mason capital management70.30K0.96%70.30K$4.71M
Herald investment management50.00K0.45%50.00K$3.34M

Sold Out

HolderChange
Parkside financial bank & trust-1.00
Twin peaks wealth advisors-1.00
Tfc financial management-1.00
Svb wealth-2.00
Innealta capital-2.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 202547-67.59%1,346,461-72.39%240.31%15-78.26%20-60.78%
Jun 30, 2025147-2.00%4,956,007-4.08%901.00%71-1.39%50-1.96%
Mar 31, 2025150-4.46%5,166,7521.23%951.08%722.86%51-
Dec 31, 2024146-11.52%4,835,724-1.17%891.09%66-15.38%48-4.00%
Sep 30, 20241647.19%4,893,0620.02%901.10%7816.42%50-18.03%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Conestoga Small Cap Investors404.51K7.35%-
iShares Core S&P Small-Cap ETF325.58K5.92%-
Conestoga Small Cap Growth181.46K3.33%8.41K
Vanguard US Total Market Shares ETF159.57K2.94%-
Vanguard Total Stock Mkt Idx Inv159.61K2.90%-3.54K
Ranger Small Cap155.18K2.84%-8.50K
Glenmede Small Cap Equity Adv126.71K2.32%-3.04K
Glenmede Small Cap Equity126.71K2.30%-3.04K
iShares Russell 2000 ETF124.44K2.26%-
Diamond Hill Small Cap Equity121.31K2.21%37.13K

Recent Insider Transactions

DateNameRoleActivityValue
Jun 16, 2025Owens Gary M President and CEOSell$188.31K
Jun 16, 2025Archbold Brian David SVP OperationsSell$45.84K
Jun 16, 2025Sakys John CFOSell$62.35K
Mar 19, 2025Owens Gary M President and CEOSell$2.60M
Oct 28, 2024Owens Gary M President and CEOSell$286.09K

Insider Transactions Trends

DateBuySell
2025 Q4--
2025 Q3--
2025 Q2-3
2025 Q1-1
2024 Q4-2

MLAB Ownership FAQ

Who owns the most shares of Mesa Laboratories?

Mesa Laboratories’s largest shareholders are Blackrock (803.5K shares, 14.92%), Conestoga capital advisors (426.46K shares, 7.80%), and Blackrock funding, inc. /de (388.8K shares, 7.11%). Together, they hold 29.84% of Mesa Laboratories’s total shares outstanding.

Does Blackrock own Mesa Laboratories?

Yes, BlackRock owns 14.92% of Mesa Laboratories, totaling 803.5K shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 69.72M$. In the last quarter, BlackRock decreased its holdings by -27.492K shares, a -3.31% change.

Who is Mesa Laboratories’s biggest shareholder by percentage of total assets invested?

Kent lake pr is Mesa Laboratories’s biggest shareholder by percentage of total assets invested, with 4.55% of its assets in 134.52K Mesa Laboratories shares, valued at 9.01M$.

Who is the top mutual fund holder of Mesa Laboratories shares?

Conestoga Small Cap Investors is the top mutual fund holder of Mesa Laboratories shares, with 7.35% of its total shares outstanding invested in 404.51K Mesa Laboratories shares.

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