MLABNasdaqIndustrial Instruments For Measurement, Display, and ControlFiscal year ends March 31
MESA LABORATORIES INC /CO/
Financials through Q1 FY2027, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 10, 2026
$123.31+0.83 (+0.67%)
Close on Oct 19, 2026
- Market cap
- $709.87M
- P/E (TTM)
- 145.1
- Dividend yield
- 0.52%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
89.9%
5M of 6M shares
Institutional holders
159
21 new, 18 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
5 buys · 7 sales
Net sold $215.72K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Conestoga Capital Advisors | 618,111 | 11.38% | 13G (passive) amendment | Dec 31, 2024 |
| Brian Paul Nelson | 477,126 | 8.60% | 13G (passive) amendment | Jun 30, 2026 |
| Long Path Holdings LLC | 405,583 | 7.30% | 13G (passive) amendment | Mar 31, 2026 |
| Wasatch Advisors LP | 387,129 | 6.90% | 13G (passive) | Sep 30, 2026 |
| BlackRock, Inc. | 378,897 | 6.90% | 13G (passive) amendment | Sep 30, 2025 |
| Long Path Smaller Companies Fund, LP | 311,703 | 5.60% | 13G (passive) | Mar 11, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MLAB | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Long Path Partners LP | 477,126 | 8.53% | $47.50M | +71,543 | 20.24% |
| BlackRock, Inc. | 440,552 | 7.87% | $43.86M | +46,701 | 0.00% |
| Boston Partners | 265,149 | 4.74% | $26.39M | −3,562 | 0.02% |
| Vanguard Capital Management LLC | 237,457 | 4.24% | $23.64M | +4,814 | 0.00% |
| Aqr Capital Management LLC | 203,739 | 3.64% | $20.28M | +33,177 | 0.01% |
| Ranger Investment Management, L.P. | 173,988 | 3.11% | $17.32M | −28,915 | 1.10% |
| Morgan Stanley | 156,979 | 2.81% | $15.63M | −5,137 | 0.00% |
| Diamond Hill Capital Management Inc | 155,771 | 2.78% | $15.51M | +469 | 0.12% |
| Raymond James Financial Inc | 149,937 | 2.68% | $14.93M | +27,026 | 0.00% |
| Dimensional Fund Advisors LP | 148,395 | 2.65% | $14.77M | +23,765 | 0.00% |
| Geode Capital Management, LLC | 139,682 | 2.50% | $13.91M | +11,680 | 0.00% |
| Kennedy Capital Management LLC | 138,301 | 2.47% | $13.77M | −4,042 | 0.24% |
| Jacobs Levy Equity Management, Inc | 130,838 | 2.34% | $13.02M | +86,421 | 0.05% |
| State Street Corp | 124,292 | 2.22% | $12.37M | +2,224 | 0.00% |
| Russell Investments Group, Ltd. | 121,845 | 2.18% | $12.13M | −13,224 | 0.01% |
| Wasatch Advisors LP | 115,668 | 2.07% | $11.51M | +64,435 | 0.08% |
| Royce & Associates LP | 113,395 | 2.03% | $11.29M | −47,834 | 0.09% |
| Crawford Investment Counsel Inc | 98,805 | 1.77% | $9.84M | +3,270 | 0.16% |
| FMR LLC | 88,857 | 1.59% | $8.85M | +82,387 | 0.00% |
| D. E. Shaw & Co., Inc. | 81,755 | 1.46% | $8.14M | +27,197 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 159 | 5M | 89.9% | 21 / 73 | 38 / 18 | 1M | 1M |
| Q1 2026 | 161 | 5M | 86.3% | 26 / 61 | 42 / 20 | 1M | 1M |
| Q4 2025 | 159 | 5M | 84.8% | 35 / 55 | 44 / 12 | 1M | 1M |
| Q3 2025 | 141 | 5M | 89.2% | 27 / 41 | 53 / 39 | 1M | 2M |
| Q2 2025 | 154 | 5M | 93.4% | 24 / 48 | 54 / 19 | 1M | 0M |
| Q1 2025 | 151 | 5M | 92.4% | 18 / 55 | 52 / 20 | 0M | 0M |
| Q4 2024 | 156 | 5M | 91.5% | 12 / 58 | 52 / 19 | 1M | 0M |
| Q3 2024 | 166 | 5M | 87.6% | 30 / 49 | 50 / 17 | 1M | 0M |
| Q2 2024 | 154 | 5M | 87.5% | 25 / 40 | 63 / 25 | 0M | 1M |
| Q1 2024 | 155 | 5M | 96.2% | 23 / 56 | 48 / 26 | 1M | 0M |
| Q4 2023 | 158 | 5M | 91.8% | 26 / 52 | 56 / 20 | 1M | 1M |
| Q3 2023 | 154 | 5M | 88.0% | 16 / 55 | 56 / 22 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of MLAB | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 168,511 | 3.01% | $16.78M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 138,875 | 2.48% | $13.83M | 0.02% | Jun 30, 2026 |
| Diamond Hill Small Cap Fund | 109,454 | 1.96% | $10.90M | 3.54% | Jun 30, 2026 |
| Column Small Cap Select Fund | 87,923 | 1.57% | $8.97M | 0.47% | May 31, 2026 |
| Fidelity Enhanced Small Cap Core ETF | 74,048 | 1.32% | $7.37M | 0.13% | Jun 30, 2026 |
| Crawford Small Cap Dividend Fund | 65,070 | 1.16% | $6.48M | 1.70% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 62,568 | 1.12% | $6.23M | 0.01% | Jun 30, 2026 |
| Wasatch Micro Cap Value Fund | 62,487 | 1.12% | $6.22M | 1.61% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 58,440 | 1.04% | $5.89M | 0.02% | Jul 31, 2026 |
| Keeley Gabelli Small Cap Dividend Fund | 53,974 | 0.96% | $5.37M | 1.89% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF | 50,244 | 0.90% | $5.00M | 0.03% | Jun 30, 2026 |
| Bridge Builder Small/Mid Cap Growth Fund | 42,724 | 0.76% | $4.25M | 0.04% | Jun 30, 2026 |
| WPG Partners Select Small Cap Value Fund | 34,829 | 0.62% | $3.55M | 1.52% | May 31, 2026 |
| U.S. Small Cap Equity Fund | 31,118 | 0.56% | $3.14M | 0.32% | Jul 31, 2026 |
| Janus Henderson Small Cap Growth Alpha ETF | 30,109 | 0.54% | $3.04M | 0.84% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Siddhartha Kadia | President and CEO | 7,093 | 0.13% | Aug 17, 2026 |
| John Sakys | CFO | 19,835 | 0.35% | Jun 23, 2026 |
| Brian David Archbold | SVP Operations | 6,377 | 0.11% | Jun 23, 2026 |
| Lyndsey Elizabeth Crennen | CAO | 2,020 | 0.04% | Jun 23, 2026 |
| Gary M. Owens | President and CEO | 64,135 | 1.15% | Apr 2, 2026 |
| Shannon Hall | Director | 6,973 | 0.12% | Sep 11, 2026 |
| R. Tony Tripeny | Director | 6,298 | 0.11% | Sep 11, 2026 |
| Shiraz Shabanali Ladiwala | Director | 12,333 | 0.22% | Sep 11, 2026 |
| Jennifer Sadie Alltoft | Director | 7,662 | 0.14% | Sep 11, 2026 |
| John James Sullivan | Director | 62,944 | 1.12% | Sep 11, 2026 |
| Mark Christopher Capone | Director | 6,213 | 0.11% | Sep 11, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Shannon Hall Director | Aug 15, 2026 | Option exercise | +2,784 | – | – | 6,973 |
| R. Tony Tripeny Director | Aug 15, 2026 | Option exercise | +2,784 | – | – | 9,082 |
| John James Sullivan Director | Aug 15, 2026 | Option exercise | +2,784 | – | – | 20,618 |
| Jennifer Sadie Alltoft Director | Aug 15, 2026 | Option exercise | +2,784 | – | – | 7,662 |
| Shiraz Shabanali Ladiwala Director | Aug 15, 2026 | Option exercise | +3,810 | – | – | 12,333 |
| Mark Christopher Capone Director | Aug 15, 2026 | Option exercise | +2,784 | – | – | 6,213 |
| John James Sullivan Director | Aug 13, 2026 | Sale | −7,093 | $112.80 | $800.09K | 17,834 |
| R. Tony Tripeny Director | Aug 13, 2026 | Buy | +900 | $113.69 | $102.32K | 6,298 |
| Siddhartha Kadia President and CEO | Aug 13, 2026 | Buy | +7,093 | $112.80 | $800.09K | 7,093 |
| Brian David Archbold SVP Operations | Jun 22, 2026 | Sale | −2,516 | $89.50 | $225.18K | 6,377 |
| Lyndsey Elizabeth Crennen CAO | Jun 22, 2026 | Sale | −442 | $89.50 | $39.56K | 2,020 |
| John Sakys CFO | Jun 22, 2026 | Sale(10b5-1 plan) | −2,827 | $89.50 | $253.02K | 19,785 |
| Brian David Archbold SVP Operations | Jun 18, 2026 | Option exercise | +844 | $95.10 | $80.26K | 4,554 |
| Brian David Archbold SVP Operations | Jun 18, 2026 | Option exercise | +2,480 | $95.10 | $235.85K | 7,034 |
| Brian David Archbold SVP Operations | Jun 18, 2026 | Award | +1,859 | $95.10 | $176.79K | 8,893 |
| Lyndsey Elizabeth Crennen CAO | Jun 18, 2026 | Option exercise | +368 | $95.10 | $35.00K | 2,199 |
| Lyndsey Elizabeth Crennen CAO | Jun 18, 2026 | Award | +263 | $95.10 | $25.01K | 2,462 |
| Lyndsey Elizabeth Crennen CAO | Jun 18, 2026 | Option exercise | +125 | $95.10 | $11.89K | 1,598 |
| Lyndsey Elizabeth Crennen CAO | Jun 18, 2026 | Option exercise | +233 | $95.10 | $22.16K | 1,831 |
| John Sakys CFO | Jun 18, 2026 | Award | +2,282 | $95.10 | $217.02K | 22,612 |
| John Sakys CFO | Jun 18, 2026 | Option exercise | +1,036 | $95.10 | $98.52K | 17,574 |
| John Sakys CFO | Jun 18, 2026 | Option exercise | +2,756 | $95.10 | $262.10K | 20,330 |
| Brian David Archbold SVP Operations | Jun 16, 2026 | Sale(10b5-1 plan) | −1,151 | $101.27 | $116.56K | 3,710 |
| Lyndsey Elizabeth Crennen CAO | Jun 16, 2026 | Sale(10b5-1 plan) | −118 | $101.27 | $11.95K | 1,473 |
| John Sakys CFO | Jun 16, 2026 | Sale(10b5-1 plan) | −1,223 | $101.27 | $123.85K | 16,538 |
| Brian David Archbold SVP Operations | Jun 15, 2026 | Option exercise | +2,454 | $104.08 | $255.41K | 4,861 |
| John Sakys CFO | Jun 15, 2026 | Option exercise | +2,717 | $104.08 | $282.79K | 17,761 |
| Shiraz Shabanali Ladiwala Director | Mar 10, 2026 | Buy | +3,500 | $72.23 | $252.81K | 8,523 |
| R. Tony Tripeny Director | Mar 10, 2026 | Buy | +1,315 | $76.00 | $99.94K | 5,398 |
| Mark Christopher Capone Director | Mar 10, 2026 | Buy | +1,301 | $76.35 | $99.33K | 3,429 |
| John James Sullivan Director | Dec 2, 2025 | Gift | −2,000 | – | – | 25,282 |
| Gary M. Owens President and CEO | Oct 27, 2025 | Option exercise | +11,558 | – | – | 64,135 |
| R. Tony Tripeny Director | Aug 15, 2025 | Option exercise | +1,404 | – | – | 4,083 |
| John James Sullivan Director | Aug 15, 2025 | Option exercise | +1,404 | – | – | 27,282 |
| Shiraz Shabanali Ladiwala Director | Aug 15, 2025 | Option exercise | +1,949 | – | – | 5,023 |
| Jennifer Sadie Alltoft Director | Aug 15, 2025 | Option exercise | +1,404 | – | – | 4,878 |
| Mark Christopher Capone Director | Aug 15, 2025 | Option exercise | +1,404 | – | – | 2,128 |
| Shannon Hall Director | Aug 15, 2025 | Option exercise | +1,404 | – | – | 4,189 |
| Brian David Archbold SVP Operations | Jun 21, 2025 | Option exercise | +844 | $95.82 | $80.87K | 2,792 |
| Brian David Archbold SVP Operations | Jun 21, 2025 | Tax withholding | −385 | $95.82 | $36.89K | 2,407 |
| John Sakys CFO | Jun 21, 2025 | Option exercise | +1,036 | $95.82 | $99.27K | 15,498 |
| John Sakys CFO | Jun 21, 2025 | Tax withholding | −454 | $95.82 | $43.50K | 15,044 |
| Gary M. Owens President and CEO | Jun 21, 2025 | Option exercise | +3,301 | $95.82 | $316.30K | 54,022 |
| Gary M. Owens President and CEO | Jun 21, 2025 | Tax withholding | −1,445 | $95.82 | $138.46K | 52,577 |
| Gary M. Owens President and CEO | Jun 18, 2025 | Tax withholding | −3,810 | $92.99 | $354.29K | 50,721 |
| Gary M. Owens President and CEO | Jun 18, 2025 | Option exercise | +8,707 | $92.99 | $809.66K | 54,531 |
| John Sakys CFO | Jun 18, 2025 | Option exercise | +2,840 | $92.99 | $264.09K | 15,705 |
| John Sakys CFO | Jun 18, 2025 | Tax withholding | −1,243 | $92.99 | $115.59K | 14,462 |
| Brian David Archbold SVP Operations | Jun 18, 2025 | Tax withholding | −1,166 | $92.99 | $108.43K | 1,948 |
| Brian David Archbold SVP Operations | Jun 18, 2025 | Option exercise | +2,556 | $92.99 | $237.68K | 3,114 |
| Gary M. Owens President and CEO | Jun 16, 2025 | Sale | −1,939 | $97.12 | $188.32K | 45,824 |
| John Sakys CFO | Jun 16, 2025 | Sale | −642 | $97.12 | $62.35K | 12,865 |
| Brian David Archbold SVP Operations | Jun 16, 2025 | Sale | −472 | $97.12 | $45.84K | 558 |
| Gary M. Owens President and CEO | Jun 15, 2025 | Option exercise | +2,102 | – | – | 47,763 |
| Gary M. Owens President and CEO | Jun 15, 2025 | Option exercise | +2,324 | – | – | 43,337 |
| John Sakys CFO | Jun 15, 2025 | Option exercise | +793 | – | – | 12,839 |
| Brian David Archbold SVP Operations | Jun 15, 2025 | Option exercise | +495 | – | – | 1,030 |
| Brian David Archbold SVP Operations | Jun 15, 2025 | Option exercise | +535 | – | – | 535 |
| Gary M. Owens President and CEO | Mar 19, 2025 | Sale(10b5-1 plan) | −21,000 | $123.91 | $2.60M | 43,337 |
| Gary M. Owens President and CEO | Mar 19, 2025 | Option exercise | +21,000 | $122.98 | $2.58M | 64,337 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Gary M. Owens Former Officer | Aug 27, 2026 | 20,358 | $2.60M | Aug 27, 2026 | Restricted Stock Vesting |
| Gary M. Owens Former Officer | Aug 21, 2026 | 20,000 | $2.45M | Aug 21, 2026 | Restricted Stock Vesting |
| Brian David Archbold Officer | Jun 22, 2026 | 2,516 | $225.19K | Jun 22, 2026 | Restricted Stock Vesting |
| John Sakys Officer | Jun 22, 2026 | 2,827 | $253.02K | Jun 22, 2026 | Restricted Stock Vesting |
| Brian David Archbold Officer | Jun 16, 2026 | 1,151 | $116.56K | Jun 16, 2026 | Restricted Stock Vesting |
| John Sakys Officer | Jun 16, 2026 | 1,223 | $123.85K | Jun 16, 2026 | Restricted Stock Vesting |
| Gary M. Owens Former Officer | Jun 16, 2026 | 3,706 | $375.30K | Jun 16, 2026 | Restricted Stock Vesting |
| Brian David Archbold Officer | Jun 16, 2025 | 472 | $45.84K | Jun 16, 2025 | Restricted Stock Vesting |
| John Sakys Officer | Jun 16, 2025 | 642 | $62.35K | Jun 16, 2025 | Restricted Stock Vesting |
| Gary M. Owens Officer, Director | Jun 16, 2025 | 1,939 | $188.31K | Jun 16, 2025 | Restricted Stock Vesting |
| Gary M. Owens Officer, Director | Mar 19, 2025 | 21,000 | $2.60M | Mar 19, 2025 | Option Granted 03/20/2017 |
| Gary M. Owens Officer, Director | Oct 29, 2024 | 2,551 | $285.65K | Oct 29, 2024 | Restricted Stock Vesting |
| Gary M. Owens Officer, Director | Oct 28, 2024 | 2,518 | $286.09K | Oct 28, 2024 | Restricted Stock Vesting |
| Brian David Archbold Officer | Sep 13, 2024 | 1,499 | $187.38K | Sep 13, 2024 | Restricted Stock Vesting |
| Brian David Archbold Officer | Dec 15, 2023 | 1,500 | $174.00K | Dec 15, 2023 | Restricted Stock Vesting |