MLAB Insider Trading
MESA LABORATORIES INC /CO/ | Industrial Instruments For Measurement, Display, and Control
Comprehensive Trading Performance Summary
The investment history of corporate insiders at MESA LABORATORIES INC /CO/ provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Industrial Instruments For Measurement, Display, and Control sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2021-07-19 16:17 | 2021-07-16 | GUILLEMIN EVAN | Director | SELL | $282.18 | 720 | $203,170 | 29,450 | -2.4% |
| 2021-07-13 19:02 | 2021-07-12 | Sakys John | Officer - CFO | OPT+S | $278.77 | 1,000 | $278,770 | 7,514 | 0.0% |
| 2021-07-06 17:48 | 2021-07-01 | Sullivan John James | Director | SELL | $267.44 | 1,250 | $334,300 | 24,299 | -4.9% |
| 2021-07-06 23:11 | 2021-07-01 | Sakys John | Officer - CFO | OPT+S | $267.04 | 1,000 | $267,040 | 7,514 | 0.0% |
| 2021-06-21 17:21 | 2021-06-17 | Archbold Brian David | Officer - SVP Continuous Improvement | SELL | $256.56 | 400 | $102,624 | 793 | -33.5% |
| 2021-06-17 19:06 | 2021-06-16 | Archbold Brian David | Officer - SVP Continuous Improvement | SELL | $257.06 | 1,336 | $343,430 | 1,193 | -52.8% |
| 2021-06-17 19:25 | 2021-06-16 | Owens Gary M | Director, Officer - President and CEO | SELL | $255.67 | 6,545 | $1,673,360 | 18,396 | -26.2% |
| 2021-06-17 20:01 | 2021-06-16 | Schmieder John Bradley | Director | SELL | $262.27 | 505 | $132,446 | 71,507 | -0.7% |
| 2021-06-17 19:16 | 2021-06-16 | DINOIA GREGORY | Officer - SVP Commericial | SELL | $255.67 | 1,211 | $309,616 | 2,973 | -28.9% |
| 2021-06-17 19:50 | 2021-06-16 | Sakys John | Officer - CFO | SELL | $255.67 | 2,119 | $541,765 | 7,514 | -22.0% |
| 2021-06-17 01:40 | 2021-06-16 | GUILLEMIN EVAN | Director | SELL | $256.36 | 720 | $184,579 | 30,170 | -2.3% |
| 2021-06-09 18:54 | 2021-06-08 | Sullivan John James | Director | OPT+S | $258.19 | 5,192 | $1,340,522 | 24,208 | 0.0% |
| 2021-06-08 18:12 | 2021-06-07 | Owens Gary M | Officer - President and CEO | SELL | $264.00 | 1,350 | $356,400 | 8,513 | -13.7% |
| 2021-06-07 20:19 | 2021-06-04 | DINOIA GREGORY | Officer - SVP Commercial | OPT+S | $260.27 | 540 | $140,546 | 840 | 0.0% |
| 2021-06-08 01:34 | 2021-06-04 | KELLY DAVID M | Director | OPT+S | $260.28 | 851 | $221,498 | 2,600 | 0.0% |
| 2021-06-04 23:41 | 2021-06-01 | Sullivan John James | Director | SELL | $251.46 | 2,215 | $556,984 | 24,208 | -8.4% |
| 2021-05-18 19:49 | 2021-05-17 | GUILLEMIN EVAN | Director | SELL | $244.25 | 720 | $175,860 | 30,595 | -2.3% |
| 2021-05-07 18:20 | 2021-05-05 | Sullivan John James | Director | SELL | $250.23 | 300 | $75,069 | 32,859 | -0.9% |
| 2021-05-06 01:04 | 2021-05-04 | Sullivan John James | Director | SELL | $250.14 | 735 | $183,853 | 33,159 | -2.2% |
| 2021-04-19 17:52 | 2021-04-16 | GUILLEMIN EVAN | Director | SELL | $253.77 | 720 | $182,714 | 31,315 | -2.2% |
| 2021-04-12 17:53 | 2021-04-05 | Sullivan John James | Director | SELL | $250.76 | 500 | $125,380 | 33,894 | -1.5% |
| 2021-04-06 01:26 | 2021-04-05 | Sullivan John James | Director | SELL | $250.76 | 500 | $125,380 | 57,458 | -0.9% |
| 2021-03-17 02:57 | 2021-03-16 | GUILLEMIN EVAN | Director | SELL | $269.48 | 720 | $194,026 | 32,035 | -2.2% |
| 2021-03-15 16:50 | 2021-03-12 | Sakys John | Officer - CFO | OPT+S | $263.84 | 2,500 | $659,600 | 4,350 | 0.0% |
| 2021-03-11 18:24 | 2021-03-10 | Archbold Brian David | Officer - SVP Continuous Improvement | OPT+S | $271.78 | 223 | $60,607 | 154 | 0.0% |
| 2021-03-02 18:43 | 2021-03-01 | Sullivan John James | Director | SELL | $273.94 | 1,250 | $342,425 | 57,958 | -2.1% |
| 2021-02-24 18:47 | 2021-02-23 | DINOIA GREGORY | Officer - SVP Commericial | SELL | $276.75 | 280 | $77,490 | 840 | -25.0% |
| 2021-02-17 18:44 | 2021-02-16 | GUILLEMIN EVAN | Director | SELL | $281.52 | 3,600 | $1,013,472 | 32,755 | -9.9% |
| 2021-02-11 03:24 | 2021-02-10 | Schmieder John Bradley | Director | SELL | $278.23 | 1,750 | $486,903 | 71,717 | -2.4% |
| 2021-02-02 02:59 | 2021-02-01 | Sullivan John James | Director | SELL | $277.67 | 1,250 | $347,088 | 59,208 | -2.1% |
| 2021-01-12 18:27 | 2021-01-12 | Schmieder John Bradley | Director | SELL | $285.23 | 477 | $136,055 | 73,467 | -0.6% |
| 2021-01-07 19:40 | 2021-01-06 | Sakys John | Officer - CFO | OPT+S | $290.00 | 16 | $4,640 | 3,350 | 0.0% |
| 2021-01-05 01:14 | 2021-01-04 | Sullivan John James | Director | SELL | $280.82 | 1,250 | $351,025 | 60,458 | -2.0% |
| 2020-12-14 19:57 | 2020-12-11 | KELLY DAVID M | Director | SELL | $283.18 | 250 | $70,795 | 2,350 | -9.6% |
| 2020-12-02 03:36 | 2020-12-01 | Sullivan John James | Director | SELL | $275.22 | 1,250 | $344,025 | 61,708 | -2.0% |
| 2020-11-18 20:40 | 2020-11-17 | Sakys John | Officer - CFO | OPT+S | $290.00 | 984 | $285,360 | 3,350 | 0.0% |
| 2020-11-18 19:09 | 2020-11-16 | KELLY DAVID M | Director | OPT+S | $283.31 | 704 | $199,450 | 2,600 | 0.0% |
| 2020-11-16 19:48 | 2020-11-13 | GUILLEMIN EVAN | Director | OPT+S | $274.30 | 2,050 | $562,315 | 35,878 | 0.0% |
| 2020-11-14 01:21 | 2020-11-12 | GUILLEMIN EVAN | Director | OPT+S | $273.77 | 950 | $260,082 | 35,878 | 0.0% |
| 2020-11-12 20:24 | 2020-11-11 | Sullivan John James | Director | SELL | $272.36 | 1,250 | $340,450 | 62,481 | -2.0% |
| 2020-11-11 00:18 | 2020-11-09 | Archbold Brian David | Officer - SVP Continuous Improvement | OPT+S | $272.11 | 533 | $145,035 | 232 | 0.0% |
| 2020-10-10 01:20 | 2020-10-07 | Owens Gary M | Officer - President and CEO | SELL | $275.62 | 1,000 | $275,617 | 9,863 | -9.2% |
| 2020-10-10 01:29 | 2020-10-08 | Sakys John | Officer - CFO | OPT+S | $276.90 | 942 | $260,840 | 3,350 | 0.0% |
| 2020-10-07 01:35 | 2020-10-06 | Owens Gary M | Officer - President and CEO | SELL | $265.00 | 1,000 | $265,000 | 10,863 | -8.4% |
| 2020-10-06 03:01 | 2020-10-02 | DINOIA GREGORY | Officer - SVP Commercial | OPT+S | $260.00 | 332 | $86,320 | 1,120 | 0.0% |
| 2020-09-17 23:31 | 2020-09-16 | Owens Gary M | Officer - President and CEO | OPT+S | $249.32 | 100 | $24,932 | 11,863 | 0.0% |
| 2020-09-08 19:08 | 2020-09-04 | DINOIA GREGORY | Officer - SVP Commerical | SELL | $243.55 | 280 | $68,194 | 1,182 | -19.2% |
| 2020-09-04 18:25 | 2020-09-01 | Sakys John | Officer - CFO | OPT+S | $251.00 | 1,000 | $250,997 | 3,400 | 0.0% |
| 2020-09-02 23:41 | 2020-08-28 | KELLY DAVID M | Director | OPT+S | $244.77 | 780 | $190,920 | 2,810 | 0.0% |
| 2020-08-19 00:20 | 2020-08-17 | DINOIA GREGORY | Officer - SVP Commercial | OPT+S | $245.70 | 835 | $205,160 | 1,462 | 0.0% |
How to Interpret $MLAB Trades
Not every insider transaction in MESA LABORATORIES INC /CO/ is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $MLAB shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for MLAB
Insider activity data for MESA LABORATORIES INC /CO/ is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $MLAB, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.