John Sakys V.
Chief Financial Officer, ISONICS CORP.
Companies
- MESA LABORATORIES INC /CO/Chief financial officer Dec 3, 2012 to now1
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
- MESA LABORATORIES INC /CO/ MLAB19,835 shares2$2.5M at $127.74Jun 23, 2026
As of each latest filing. The line shows shares held over time.
Recent filings
- Jun 22, 2026Sold 2,827 shares at $89.50 of MESA LABORATORIES INC /CO/2
- Jun 18, 2026Granted 2,282 shares at $95.10 of MESA LABORATORIES INC /CO/2
- Jun 18, 2026Exercised options 2,756 shares at $95.10 of MESA LABORATORIES INC /CO/2
- Jun 18, 2026Exercised options 1,036 shares at $95.10 of MESA LABORATORIES INC /CO/2
- Jun 16, 2026Sold 1,223 shares at $101.27 of MESA LABORATORIES INC /CO/3
- Jun 15, 2026Exercised options 2,717 shares at $104.08 of MESA LABORATORIES INC /CO/4
- Jun 21, 2025Shares withheld for tax 454 shares at $95.82 of MESA LABORATORIES INC /CO/5
- Jun 21, 2025Exercised options 1,036 shares at $95.82 of MESA LABORATORIES INC /CO/5
- Jun 18, 2025Shares withheld for tax 1,243 shares at $92.99 of MESA LABORATORIES INC /CO/6
- Jun 18, 2025Exercised options 2,840 shares at $92.99 of MESA LABORATORIES INC /CO/6
- Jun 16, 2025Sold 642 shares at $97.12 of MESA LABORATORIES INC /CO/7
- Jun 15, 2025Exercised options 793 shares of MESA LABORATORIES INC /CO/7
- Sep 1, 2024Shares withheld for tax 454 shares at $133.69 of MESA LABORATORIES INC /CO/8
- Sep 1, 2024Exercised options 1,037 shares of MESA LABORATORIES INC /CO/8
- Jun 14, 2024Shares withheld for tax 572 shares at $91.60 of MESA LABORATORIES INC /CO/9
- Jun 14, 2024Exercised options 1,304 shares of MESA LABORATORIES INC /CO/9
- Jun 16, 2023Exercised options 848 shares of MESA LABORATORIES INC /CO/10
- Jun 15, 2023Shares withheld for tax 288 shares at $135.55 of MESA LABORATORIES INC /CO/10
- Jun 15, 2023Shares withheld for tax 373 shares at $134.45 of MESA LABORATORIES INC /CO/11
- Jun 15, 2023Exercised options 848 shares of MESA LABORATORIES INC /CO/11
- Mar 24, 2023Sold 1,128 shares at $167.01 of MESA LABORATORIES INC /CO/12
- Mar 24, 2023Exercised options 1,128 shares at $51.85 of MESA LABORATORIES INC /CO/12
- Mar 24, 2023Sold 1,000 shares at $167.01 of MESA LABORATORIES INC /CO/12
- Mar 24, 2023Exercised options 1,000 shares at $122.66 of MESA LABORATORIES INC /CO/12
- Mar 22, 2023Sold 2,500 shares at $171.62 of MESA LABORATORIES INC /CO/12
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2
- 3SEC EDGARForm 4 filed Jun 17, 2026
- 4SEC EDGARForm 4 filed Jun 16, 2026
- 5SEC EDGARForm 4 filed Jun 25, 2025
- 6SEC EDGARForm 4 filed Jun 20, 2025
- 7SEC EDGARForm 4 filed Jun 18, 2025
- 8SEC EDGARForm 4 filed Sep 6, 2024
- 9SEC EDGARForm 4 filed Jun 17, 2024
- 10SEC EDGARForm 4 filed Jun 21, 2023
- 11SEC EDGARForm 4 filed Jun 16, 2023
- 12SEC EDGARForm 4 filed Mar 27, 2023