MESA LABORATORIES INC /CO/ — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Sullivan John James | — | Sale | 500 | $250.76 | $125,380 | 33,894 | Apr 5, 2021 |
| Sullivan John James | — | Sale | 500 | $250.76 | $125,380 | 57,458 | Apr 5, 2021 |
| Sullivan John James | — | Gift | 23,564 | — | — | 34,394 | Mar 26, 2021 |
| GUILLEMIN EVAN | — | Sale | 720 | $269.48 | $194,026 | 32,035 | Mar 16, 2021 |
| Sakys John | CFO | Option Exercise | 500 | $48.72 | $24,360 | 4,850 | Mar 12, 2021 |
| Archbold Brian David | SVP Continuous Improvement | Sale | 223 | $271.78 | $60,607 | 154 | Mar 11, 2021 |
| Sullivan John James | — | Sale | 1,250 | $273.94 | $342,425 | 57,958 | Mar 1, 2021 |
| DINOIA GREGORY | SVP Commericial | Sale | 280 | $276.75 | $77,490 | 840 | Feb 23, 2021 |
| GUILLEMIN EVAN | — | Sale | 3,600 | $281.52 | $1,013,472 | 32,755 | Feb 16, 2021 |
| Schmieder John Bradley | — | Sale | 1,750 | $278.23 | $486,903 | 71,717 | Feb 10, 2021 |
| Sullivan John James | — | Sale | 1,250 | $277.67 | $347,088 | 59,208 | Feb 1, 2021 |
| Schmieder John Bradley | — | Sale | 477 | $285.23 | $136,055 | 73,467 | Jan 12, 2021 |
| Sakys John | CFO | Option Exercise | 1,000 | $89.70 | $89,700 | 4,350 | Jan 8, 2021 |
| Sakys John | CFO | Sale | 16 | $290.00 | $4,640 | 3,350 | Jan 6, 2021 |
| Sullivan John James | — | Sale | 1,250 | $280.82 | $351,025 | 60,458 | Jan 4, 2021 |
| KELLY DAVID M | — | Sale | 250 | $283.18 | $70,795 | 2,350 | Dec 11, 2020 |
| Sullivan John James | — | Sale | 1,250 | $275.22 | $344,025 | 61,708 | Dec 1, 2020 |
| Sakys John | CFO | Sale | 984 | $290.00 | $285,360 | 3,350 | Nov 17, 2020 |
| KELLY DAVID M | — | Option Exercise | 17 | $58.51 | $995 | 3,304 | Nov 16, 2020 |
| GUILLEMIN EVAN | — | Option Exercise | 477 | — | — | 36,355 | Nov 15, 2020 |
| Sullivan John James | — | Option Exercise | 477 | — | — | 62,958 | Nov 15, 2020 |
| KELLY DAVID M | — | Option Exercise | 477 | — | — | 3,287 | Nov 15, 2020 |
| Schmieder John Bradley | — | Option Exercise | 477 | — | — | 73,944 | Nov 15, 2020 |
| Alltoft Jennifer Sadie | — | Option Exercise | 477 | — | — | 686 | Nov 15, 2020 |
| Hall Shannon | — | Option Exercise | 254 | — | — | 254 | Nov 15, 2020 |
| GUILLEMIN EVAN | — | Option Exercise | 200 | $51.85 | $10,370 | 37,928 | Nov 13, 2020 |
| GUILLEMIN EVAN | — | Sale | 950 | $273.77 | $260,081 | 35,878 | Nov 12, 2020 |
| Sullivan John James | — | Sale | 1,250 | $272.36 | $340,450 | 62,481 | Nov 11, 2020 |
| Archbold Brian David | SVP Continuous Improvement | Option Exercise | 533 | $203.54 | $108,487 | 765 | Nov 9, 2020 |
| Sakys John | CFO | Option Exercise | 942 | $89.70 | $84,497 | 4,292 | Oct 8, 2020 |
| Owens Gary M | President and CEO | Sale | 323 | $276.91 | $89,442 | 9,863 | Oct 7, 2020 |
| Owens Gary M | President and CEO | Sale | 1,000 | $265.00 | $265,000 | 10,863 | Oct 6, 2020 |
| DINOIA GREGORY | SVP Commercial | Option Exercise | 270 | $142.40 | $38,448 | 1,452 | Oct 2, 2020 |
| Owens Gary M | President and CEO | Sale | 100 | $249.32 | $24,932 | 11,863 | Sep 15, 2020 |
| DINOIA GREGORY | SVP Commerical | Sale | 280 | $243.55 | $68,194 | 1,182 | Sep 4, 2020 |
| Sakys John | CFO | Option Exercise | 298 | $48.72 | $14,519 | 3,698 | Sep 2, 2020 |
| KELLY DAVID M | — | Sale | 180 | $244.00 | $43,920 | 2,810 | Aug 28, 2020 |
| KELLY DAVID M | — | Sale | 800 | $247.72 | $198,176 | 2,810 | Aug 17, 2020 |
| DINOIA GREGORY | SVP Commercial | Sale | 835 | $245.70 | $205,160 | 1,462 | Aug 17, 2020 |
| Sakys John | CFO | Gift | 100 | — | — | 3,400 | Aug 14, 2020 |
| Schmieder John Bradley | — | Sale | 1,429 | $246.29 | $351,948 | 73,467 | Aug 12, 2020 |
| Archbold Brian David | SVP Continuous Improvement | Sale | 38 | $250.00 | $9,500 | 232 | Aug 10, 2020 |
| KELLY DAVID M | — | Sale | 942 | $250.00 | $235,500 | 2,810 | Aug 10, 2020 |
| DINOIA GREGORY | SVP Commecial Operations | Option Exercise | 90 | — | — | 1,552 | Jun 15, 2020 |
| Archbold Brian David | SVP Continuous Improvement | Option Exercise | 70 | — | — | 302 | Jun 15, 2020 |
| Owens Gary M | CEO | Tax Withholding | 440 | $226.72 | $99,757 | 11,000 | Jun 15, 2020 |
| GUILLEMIN EVAN | — | Option Exercise | 30 | — | — | 35,878 | Jun 15, 2020 |
| Schmieder John Bradley | — | Option Exercise | 30 | — | — | 73,467 | Jun 15, 2020 |
| KELLY DAVID M | — | Option Exercise | 30 | — | — | 2,810 | Jun 15, 2020 |
| Sullivan John James | — | Option Exercise | 30 | — | — | 63,731 | Jun 15, 2020 |