Mesa Laboratories Ownership | Who Owns Mesa Laboratories?
Mesa Laboratories Ownership Summary
Mesa Laboratories is owned by 92.21% institutional investors, 5.41% insiders, and 2.38% 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
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Mesa Laboratories | 92.21% | 5.41% | 2.38% |
| Sector | Healthcare Stocks | 244.59% | 12.11% | -156.70% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 803.50K | 14.92% | $69.72M |
| Long path partners lp | 477.13K | 8.65% | $47.50M |
| Blackrock funding, inc. /de | 440.55K | 7.99% | $43.86M |
| Vanguard group | 321.90K | 5.82% | $25.27M |
| Boston partners | 265.15K | 4.81% | $26.39M |
| Vanguard capital management | 237.46K | 4.31% | $23.64M |
| Aqr capital management | 203.74K | 3.69% | $20.28M |
| Ranger investment management | 173.99K | 3.16% | $17.32M |
| Morgan stanley | 156.98K | 2.85% | $15.63M |
| Diamond hill capital management | 155.77K | 2.83% | $15.51M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Long path partners lp | 477.13K | 20.24% | $47.50M |
| Kent lake pr | 134.52K | 4.55% | $9.01M |
| Meros investment management, lp | 67.96K | 2.15% | $6.77M |
| Monimus capital management, lp | 55.34K | 1.28% | $5.51M |
| Ranger investment management | 173.99K | 1.10% | $17.32M |
| Herald investment management | 42.50K | 0.57% | $4.23M |
| Keeley-teton advisors | 22.00K | 0.34% | $2.90M |
| Kennedy capital management | 138.30K | 0.24% | $13.77M |
| Crawford investment counsel | 98.81K | 0.16% | $9.84M |
| Cm wealth advisors | 8.34K | 0.15% | $830.35K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Kent lake pr | 134.52K | 4.55% | 134.52K |
| Jacobs levy equity management | 130.84K | 0.05% | 86.42K |
| Fmr | 88.86K | 0.00% | 82.39K |
| Jane street group | 71.58K | 0.00% | 71.58K |
| Long path partners lp | 477.13K | 20.24% | 71.54K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Conestoga capital advisors | - | - | -426.46K |
| Select equity group | - | - | -235.88K |
| Simcoe capital management | - | - | -190.93K |
| Geneva capital management | - | - | -178.71K |
| Glenmede investment management, lp | 3.01K | 0.00% | -139.50K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Kent lake pr | 134.52K | 4.55% | 134.52K | $9.01M |
| Sixth street partners management company | 54.46K | 0.00% | 54.46K | $5.42M |
| Cubist systematic strategies | 35.99K | 0.01% | 35.99K | $2.41M |
| Nfj investment group | 14.26K | 0.05% | 14.26K | $1.42M |
| Cm wealth advisors | 8.34K | 0.15% | 8.34K | $830.35K |
Sold Out
| Holder | Change |
|---|---|
| Hughes financial services | -1.00 |
| Twin peaks wealth advisors | -1.00 |
| Tfc financial management | -1.00 |
| Svb wealth | -2.00 |
| Innealta capital | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 158 | -1.86% | 5,084,236 | 5.31% | 92 | 1.20% | 94 | 9.30% | 37 | -13.95% |
| Mar 31, 2026 | 154 | -3.14% | 4,765,452 | 0.49% | 86 | 1.17% | 83 | -7.78% | 42 | -6.67% |
| Dec 31, 2025 | 31 | -77.86% | 623,685 | -87.49% | 11 | 0.14% | 14 | -80.00% | 9 | -82.35% |
| Sep 30, 2025 | 47 | -67.59% | 1,346,461 | -72.39% | 24 | 0.31% | 15 | -78.26% | 20 | -60.78% |
| Jun 30, 2025 | 147 | -2.00% | 4,956,007 | -4.08% | 90 | 1.00% | 71 | -1.39% | 50 | -1.96% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Conestoga Small Cap Investors | 404.51K | 7.35% | - |
| iShares Core S&P Small-Cap ETF | 325.58K | 5.92% | - |
| Conestoga Small Cap Growth | 181.46K | 3.33% | 8.41K |
| Vanguard Total Stock Mkt Idx Inv | 168.51K | 3.05% | 4.30K |
| Vanguard MStar Total Stk Mkt Idx Invest | 168.51K | 3.01% | - |
| Vanguard Morn Total Stk Mkt Idx Investor | 168.51K | 3.01% | 4.30K |
| Vanguard US Total Market Shares ETF | 159.57K | 2.94% | - |
| Ranger Small Cap | 139.02K | 2.52% | -8.54K |
| Kennedy Small Cap Value | 137.83K | 2.49% | -3.56K |
| iShares Russell 2000 ETF | 135.88K | 2.43% | -2.40K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 13, 2026 | Sullivan John James | - | Sell | $800.09K |
| Aug 13, 2026 | Kadia Siddhartha | President and CEO | Buy | $800.09K |
| Aug 13, 2026 | Tripeny R Tony | - | Buy | $102.32K |
| Jun 22, 2026 | Crennen Lyndsey Elizabeth | CAO | Sell | $39.56K |
| Jun 22, 2026 | Archbold Brian David | SVP Operations | Sell | $225.19K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2027 Q2 | - | - |
| 2027 Q1 | - | - |
| 2026 Q2 | - | - |
| 2026 Q1 | 3 | - |
| 2025 Q4 | - | - |
MLAB Ownership FAQ
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