Insider Transactions Reported by 14 Insiders of MESA LABORATORIES INC /CO/

Symbol
MLAB on Nasdaq
Location
Lakewood, CO

Insiders trading volume in the past year

MESA LABORATORIES INC /CO/ executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Gary M. Owens President and CEO $7,737,724 -$2,790,422 -27% 27 Oct 2025
John Bradley Schmieder Director $7,051,714 14 Sep 2023
John James Sullivan Director $5,737,069 02 Dec 2025
MESA LABORATORIES INC /CO/ Director $3,350,351 15 Jun 2022
Evan Guillemin Director $3,281,699 01 Sep 2022
John Sakys Cfo $2,566,577 -$62,350 -2.4% 21 Jun 2025
Brian David Archbold SVP Operations $1,122,731 -$45,840 -3.9% 21 Jun 2025
Shiraz Shabanali Ladiwala Director $794,144 +$252,805 +47% 10 Mar 2026
R. Tony Tripeny Director $538,854 +$99,940 +23% 10 Mar 2026
Jennifer Sadie Alltoft Director $503,138 15 Aug 2025
Gregory Dinoia SVP Commercial $496,105 17 Jun 2022
Shannon Hall Director $450,237 15 Aug 2025
Mark Christopher Capone Director $390,410 +$99,331 +34% 10 Mar 2026
David M. Kelly Director $292,136 08 Nov 2021

Recent Insider Transactions by Companies or Individuals for MESA LABORATORIES INC /CO/

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Shiraz Shabanali Ladiwala MLAB Common Stock Purchase 69.7% $252,805 $72.23 3,500 8,523 10 Mar 2026 Direct
Mark Christopher Capone MLAB Common Stock Purchase 61.1% $99,331 $76.35 1,301 3,429 10 Mar 2026 Direct
R. Tony Tripeny MLAB Common Stock Purchase 32.2% $99,940 $76.00 1,315 5,398 10 Mar 2026 Direct
John James Sullivan MLAB Common Stock Gift -7.33% -2,000 25,282 02 Dec 2025 Direct
Gary M. Owens MLAB Common Stock Options Exercise 22% 11,558 64,135 27 Oct 2025 Direct
Shiraz Shabanali Ladiwala MLAB Common Stock Options Exercise 63.4% 1,949 5,023 15 Aug 2025 Direct
Shiraz Shabanali Ladiwala MLAB Restricted Stock Units - 6 Award 3,810 3,810 15 Aug 2025 Direct
Shiraz Shabanali Ladiwala MLAB Restricted Stock Units - 5 Options Exercise -100% -1,949 0 15 Aug 2025 Direct
John James Sullivan MLAB Common Stock Options Exercise 5.43% 1,404 27,282 15 Aug 2025 Direct
John James Sullivan MLAB Restricted Stock Units - 10 Award 2,784 2,784 15 Aug 2025 Direct
John James Sullivan MLAB Restricted Stock Units - 9 Options Exercise -100% -1,404 0 15 Aug 2025 Direct
Shannon Hall MLAB Common Stock Options Exercise 50.4% 1,404 4,189 15 Aug 2025 Direct
Shannon Hall MLAB Restricted Stock Units - 8 Award 2,784 2,784 15 Aug 2025 Direct
Shannon Hall MLAB Restricted Stock Units - 7 Options Exercise -100% -1,404 0 15 Aug 2025 Direct
R. Tony Tripeny MLAB Common Stock Options Exercise 52.4% 1,404 4,083 15 Aug 2025 Direct
R. Tony Tripeny MLAB Restricted Stock Units - 4 Award 2,784 2,784 15 Aug 2025 Direct
R. Tony Tripeny MLAB Restricted Stock Units - 3 Options Exercise -100% -1,404 0 15 Aug 2025 Direct
Mark Christopher Capone MLAB Common Stock Options Exercise 193.9% 1,404 2,128 15 Aug 2025 Direct
Mark Christopher Capone MLAB Restricted Stock Units - 3 Award 2,784 2,784 15 Aug 2025 Direct
Mark Christopher Capone MLAB Restricted Stock Units - 2 Options Exercise -100% -1,404 0 15 Aug 2025 Direct
Jennifer Sadie Alltoft MLAB Common Stock Options Exercise 40.4% 1,404 4,878 15 Aug 2025 Direct
Jennifer Sadie Alltoft MLAB Restricted Stock Units - 9 Award 2,784 2,784 15 Aug 2025 Direct
Jennifer Sadie Alltoft MLAB Restricted Stock Units - 8 Options Exercise -100% -1,404 0 15 Aug 2025 Direct
John Sakys MLAB Common Stock Tax liability -2.93% -454 15,044 21 Jun 2025 Direct
John Sakys MLAB Common Stock Options Exercise 7.16% 1,036 15,498 21 Jun 2025 Direct
John Sakys MLAB Restricted Stock Units - 6 Options Exercise -50% -1,036 1,036 21 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Tax liability -13.8% -385 2,407 21 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Options Exercise 43.3% 844 2,792 21 Jun 2025 Direct
Brian David Archbold MLAB Restricted Stock Units - 7 Options Exercise -50% -844 844 21 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Tax liability -2.67% -1,445 52,577 21 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Options Exercise 6.51% 3,301 54,022 21 Jun 2025 Direct
Gary M. Owens MLAB Restricted Stock Units - 8 Options Exercise -50% -3,301 3,300 21 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Tax liability -6.99% -3,810 50,721 18 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Options Exercise 19% 8,707 54,531 18 Jun 2025 Direct
Gary M. Owens MLAB Restricted Stock Units - 9 Options Exercise -34% -8,707 16,900 18 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Tax liability -37.4% -1,166 1,948 18 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Options Exercise 458.1% 2,556 3,114 18 Jun 2025 Direct
Brian David Archbold MLAB Restricted Stock Units - 8 Options Exercise -34% -2,556 4,960 18 Jun 2025 Direct
John Sakys MLAB Common Stock Tax liability -7.91% -1,243 14,462 18 Jun 2025 Direct
John Sakys MLAB Common Stock Options Exercise 22.1% 2,840 15,705 18 Jun 2025 Direct
John Sakys MLAB Restricted Stock Units - 7 Options Exercise -34% -2,840 5,511 18 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Sale -4.06% $188,312 $97.12 -1,939 45,824 16 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Sale -45.8% $45,840 $97.12 -472 558 16 Jun 2025 Direct
John Sakys MLAB Common Stock Sale -4.75% $62,350 $97.12 -642 12,865 16 Jun 2025 Direct
John Sakys MLAB Restricted Stock Units - 8 Award 8,133 8,133 15 Jun 2025 Direct
Brian David Archbold MLAB Restricted Stock Units - 9 Award 7,346 7,346 15 Jun 2025 Direct
Gary M. Owens MLAB Restricted Stock Units - 10 Award 24,659 24,659 15 Jun 2025 Direct
Gary M. Owens MLAB Common Stock Options Exercise 10.2% 4,426 47,763 15 Jun 2025 Direct
Gary M. Owens MLAB Restricted Stock Units - 7 Options Exercise -100% -2,324 0 15 Jun 2025 Direct
Brian David Archbold MLAB Common Stock Options Exercise 1,030 1,030 15 Jun 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.