Mesa Laboratories Inc (MLAB)

Mesa Laboratories Inc. experienced significant insider trading activity recently, with executives offloading shares totaling approximately $477,544 in net value over the past 90 days. These sales followed a positive earnings report in late May. Despite stable stock performance, leadership remains active in liquidating positions, contrasting with earlier buying interest observed during March.
Ticker: MLAB Exchange: NSM


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Insider trades have triggered activity signals for Mesa Laboratories Inc. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
73.25
Quantity 48,638 -47.9%
Value US$4,328,600
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Sale
Price
491.38
Quantity 47,275 +14.4%
Value US$1,635,001
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
89.50
Quantity 2,827
Value US$253,022
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
89.50
Quantity 2,827
Value US$253,022
3.7
Archbold Brian David Officer Officer
Transaction date
Proposed sale
Price
89.50
Quantity 2,516
Value US$225,187
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Sale
Price
101.27
Quantity 1,151 -23.7%
Value US$116,558
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
101.27
Quantity 1,223 -6.9%
Value US$123,850
3.7
Archbold Brian David Officer Officer
Transaction date
Proposed sale
Price
101.27
Quantity 1,151
Value US$116,558
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
101.27
Quantity 1,223
Value US$123,850
2.1
Owens Gary M Former Officer Officer
Transaction date
Proposed sale
Price
101.27
Quantity 3,706
Value US$375,296
2.1
Tripeny R Tony Non-Executive Director
Transaction date
Purchase
Price
76.00
Quantity 1,315 +32.2%
Value US$99,940
3.2
Capone Mark Christopher Non-Executive Director
Transaction date
Purchase
Price
76.35
Quantity 1,301 +61.1%
Value US$99,331
3.3
Ladiwala Shiraz Shabanali Non-Executive Director
Transaction date
Purchase
Price
72.23
Quantity 3,500 +69.7%
Value US$252,805
2.1
Owens Gary M President and CEO Officer
Transaction date
Sale
Price
97.12
Quantity 1,939 -4.1%
Value US$188,312
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Sale
Price
97.12
Quantity 472 -45.8%
Value US$45,840
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
97.12
Quantity 642 -4.8%
Value US$62,350
3.7
Archbold Brian David Officer Officer
Transaction date
Proposed sale
Price
97.12
Quantity 472
Value US$45,840
2.1
Owens Gary M Officer; Director Executive Director
Transaction date
Proposed sale
Price
97.12
Quantity 1,939
Value US$188,311
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
97.12
Quantity 642
Value US$62,350
2.1
Owens Gary M President and CEO Officer
Transaction date
Planned sale
Price
123.91
Quantity 21,000 -32.6%
Value US$2,602,110
2.1
Owens Gary M Officer; Director Executive Director
Transaction date
Proposed sale
Price
123.91
Quantity 21,000
Value US$2,602,119
2.1
Owens Gary M Officer; Director Executive Director
Transaction date
Proposed sale
Price
111.98
Quantity 2,551
Value US$285,652
2.1
Owens Gary M President and CEO Officer
Transaction date
Sale
Price
111.98
Quantity 2,551 -5.6%
Value US$285,651
2.1
Owens Gary M President and CEO Officer
Transaction date
Sale
Price
113.62
Quantity 2,518 -5.2%
Value US$286,085
2.1
Owens Gary M Officer; Director Executive Director
Transaction date
Proposed sale
Price
113.62
Quantity 2,518
Value US$286,086
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Planned sale
Price
125.00
Quantity 1,499 -100.0%
Value US$187,375
3.7
Archbold Brian David Officer Officer
Transaction date
Proposed sale
Price
125.00
Quantity 1,499
Value US$187,381
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Planned sale
Price
112.36
Quantity 1,500 -72.9%
Value US$168,540
3.7
Archbold Brian David Officer Officer
Transaction date
Proposed sale
Price
116.00
Quantity 1,500
Value US$174,000
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Planned sale
Price
123.74
Quantity 1,000 -1.6%
Value US$123,740
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Planned sale
Price
123.05
Quantity 3,000 -4.5%
Value US$369,150
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Planned sale
Price
123.32
Quantity 3,000 -4.3%
Value US$369,965
3.3
Schmieder John Bradley Director Non-Executive Director
Transaction date
Proposed sale
Price
122.72
Quantity 7,000
Value US$859,039
2.1
Owens Gary M President and CEO Officer
Transaction date
Planned sale
Price
142.82
Quantity 2,000 -6.2%
Value US$285,640
2.1
Owens Gary M Officer; Director Executive Director
Transaction date
Proposed sale
Price
144.93
Quantity 2,000
Value US$289,860
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
167.01
Quantity 1,128 -10.4%
Value US$188,387
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
167.01
Quantity 1,000 -9.3%
Value US$167,010
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
167.01
Quantity 2,128
Value US$355,397
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
171.62
Quantity 2,500 -20.5%
Value US$429,050
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
174.13
Quantity 2,500
Value US$435,325
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
165.71
Quantity 1,000 -9.3%
Value US$165,710
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
165.71
Quantity 1,000
Value US$165,710
3.3
Sakys John Officer Officer
Transaction date
Proposed sale
Price
169.97
Quantity 400
Value US$67,988
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
169.97
Quantity 400 -4.0%
Value US$67,988
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
184.27
Quantity 1,000 -9.3%
Value US$184,270
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
210.19
Quantity 2,100 -17.8%
Value US$441,399
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Sale
Price
191.31
Quantity 1,571 -2.2%
Value US$300,548
1.6
Hall Shannon Non-Executive Director
Transaction date
Sale
Price
174.98
Quantity 230 -19.4%
Value US$40,244
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Sale
Price
175.45
Quantity 2,500 -3.5%
Value US$438,625
3.3
GUILLEMIN EVAN Non-Executive Director
Transaction date
Sale
Price
196.12
Quantity 3,692 -11.4%
Value US$724,075
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
200.58
Quantity 1,372 -13.7%
Value US$275,196
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
200.54
Quantity 628 -5.9%
Value US$125,939
2.1
Tripeny R Tony Non-Executive Director
Transaction date
Purchase
Price
200.00
Quantity 500 +inf%
Value US$100,000
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
188.22
Quantity 722 -7.7%
Value US$135,898
2.1
Owens Gary M President and CEO Officer
Transaction date
Sale
Price
188.22
Quantity 1,756 -7.5%
Value US$330,521
2.4
DINOIA GREGORY SVP Commercial Officer
Transaction date
Sale
Price
188.22
Quantity 555 -13.2%
Value US$104,464
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Sale
Price
188.22
Quantity 392 -32.5%
Value US$73,784
3.7
Sullivan John James Non-Executive Director
Transaction date
Sale
Price
207.76
Quantity 5,192 -17.9%
Value US$1,078,690
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
250.44
Quantity 72 -0.9%
Value US$18,032
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
251.15
Quantity 670 -8.2%
Value US$168,270
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
251.29
Quantity 930 -10.2%
Value US$233,700
3.7
Sullivan John James Non-Executive Director
Transaction date
Planned sale
Price
259.42
Quantity 5,192 -18.5%
Value US$1,346,909
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Planned sale
Price
327.77
Quantity 1,000 -1.4%
Value US$327,770
3.7
Archbold Brian David SVP Operations Officer
Transaction date
Sale
Price
325.02
Quantity 1,659 -91.5%
Value US$539,208
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
324.74
Quantity 1,758 -19.0%
Value US$570,893
3.3
GUILLEMIN EVAN Non-Executive Director
Transaction date
Sale
Price
310.61
Quantity 2,320 -7.2%
Value US$720,615
3.7
Sullivan John James Non-Executive Director
Transaction date
Planned sale
Price
308.02
Quantity 5,192 -19.2%
Value US$1,599,240
3.3
Sakys John CFO Officer
Transaction date
Sale
Price
317.12
Quantity 1,000 -11.7%
Value US$317,120
2.4
DINOIA GREGORY SVP Commercial Officer
Transaction date
Sale
Price
323.72
Quantity 280 -9.4%
Value US$90,642
2.8
KELLY DAVID M Non-Executive Director
Transaction date
Sale
Price
324.07
Quantity 18 -0.7%
Value US$5,833
3.3
Sakys John CFO Officer
Transaction date
Planned sale
Price
309.86
Quantity 2,000 -21.0%
Value US$619,720
3.7
Sullivan John James Non-Executive Director
Transaction date
Planned sale
Price
304.48
Quantity 1,250 -5.4%
Value US$380,600
3.3
Schmieder John Bradley Non-Executive Director
Transaction date
Planned sale
Price
278.06
Quantity 800 -1.1%
Value US$222,448
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-06-23 2026-06-22 PlS Planned sale

CFO

Officer
48,638 -47.9%
73.25
US$4,328,600
48,638 -47.9% 73.25 US$4,328,600
2026-06-23 2026-06-22 S Sale

SVP Operations

Officer
47,275 +14.4%
491.38
US$1,635,001
47,275 +14.4% 491.38 US$1,635,001
2026-06-23 2026-06-22 PlS Planned sale

CAO

Officer
99,863 +43.4%
74.46
US$1,185,468
99,863 +43.4% 74.46 US$1,185,468
2026-06-22 2026-06-22 PrS Proposed sale

Officer

Officer
2,827
89.50
US$253,022
2,827 89.50 US$253,022
2026-06-22 2026-06-22 PrS Proposed sale

Officer

Officer
2,827
89.50
US$253,022
2,827 89.50 US$253,022
2026-06-22 2026-06-22 PrS Proposed sale

Officer

Officer
2,516
89.50
US$225,187
2,516 89.50 US$225,187
2026-06-17 2026-06-16 S Sale

SVP Operations

Officer
1,151 -23.7%
101.27
US$116,558
1,151 -23.7% 101.27 US$116,558
2026-06-17 2026-06-16 S Sale

CAO

Officer
118 -7.4%
101.27
US$11,950
118 -7.4% 101.27 US$11,950
2026-06-17 2026-06-16 S Sale

CFO

Officer
1,223 -6.9%
101.27
US$123,850
1,223 -6.9% 101.27 US$123,850
2026-06-16 2026-06-16 PrS Proposed sale

Officer

Officer
1,151
101.27
US$116,558
1,151 101.27 US$116,558
2026-06-16 2026-06-16 PrS Proposed sale

Officer

Officer
1,223
101.27
US$123,850
1,223 101.27 US$123,850
2026-06-16 2026-06-16 PrS Proposed sale

Former Officer

Officer
3,706
101.27
US$375,296
3,706 101.27 US$375,296
2026-03-10 2026-03-10 B Purchase Non-Executive Director
1,315 +32.2%
76.00
US$99,940
1,315 +32.2% 76.00 US$99,940
2026-03-10 2026-03-10 B Purchase Non-Executive Director
1,301 +61.1%
76.35
US$99,331
1,301 +61.1% 76.35 US$99,331
2026-03-10 2026-03-10 B Purchase Non-Executive Director
3,500 +69.7%
72.23
US$252,805
3,500 +69.7% 72.23 US$252,805
2025-06-18 2025-06-16 S Sale

President and CEO

Officer
1,939 -4.1%
97.12
US$188,312
1,939 -4.1% 97.12 US$188,312
2025-06-18 2025-06-16 S Sale

SVP Operations

Officer
472 -45.8%
97.12
US$45,840
472 -45.8% 97.12 US$45,840
2025-06-18 2025-06-16 S Sale

CFO

Officer
642 -4.8%
97.12
US$62,350
642 -4.8% 97.12 US$62,350
2025-06-16 2025-06-16 PrS Proposed sale

Officer

Officer
472
97.12
US$45,840
472 97.12 US$45,840
2025-06-16 2025-06-16 PrS Proposed sale

Officer; Director

Executive Director
1,939
97.12
US$188,311
1,939 97.12 US$188,311
2025-06-16 2025-06-16 PrS Proposed sale

Officer

Officer
642
97.12
US$62,350
642 97.12 US$62,350
2025-03-24 2025-03-19 PlS Planned sale

President and CEO

Officer
21,000 -32.6%
123.91
US$2,602,110
21,000 -32.6% 123.91 US$2,602,110
2025-03-19 2025-03-19 PrS Proposed sale

Officer; Director

Executive Director
21,000
123.91
US$2,602,119
21,000 123.91 US$2,602,119
2024-10-29 2024-10-29 PrS Proposed sale

Officer; Director

Executive Director
2,551
111.98
US$285,652
2,551 111.98 US$285,652
2024-10-29 2024-10-29 S Sale

President and CEO

Officer
2,551 -5.6%
111.98
US$285,651
2,551 -5.6% 111.98 US$285,651
2024-10-29 2024-10-28 S Sale

President and CEO

Officer
2,518 -5.2%
113.62
US$286,085
2,518 -5.2% 113.62 US$286,085
2024-10-28 2024-10-28 PrS Proposed sale

Officer; Director

Executive Director
2,518
113.62
US$286,086
2,518 113.62 US$286,086
2024-09-16 2024-09-13 PlS Planned sale

SVP Operations

Officer
1,499 -100.0%
125.00
US$187,375
1,499 -100.0% 125.00 US$187,375
2024-09-13 2024-09-13 PrS Proposed sale

Officer

Officer
1,499
125.00
US$187,381
1,499 125.00 US$187,381
2023-12-19 2023-12-15 PlS Planned sale

SVP Operations

Officer
1,500 -72.9%
112.36
US$168,540
1,500 -72.9% 112.36 US$168,540
2023-12-15 2023-12-15 PrS Proposed sale

Officer

Officer
1,500
116.00
US$174,000
1,500 116.00 US$174,000
2023-09-19 2023-09-15 PlS Planned sale Non-Executive Director
1,000 -1.6%
123.74
US$123,740
1,000 -1.6% 123.74 US$123,740
2023-09-19 2023-09-14 PlS Planned sale Non-Executive Director
3,000 -4.5%
123.05
US$369,150
3,000 -4.5% 123.05 US$369,150
2023-09-14 2023-09-13 PlS Planned sale Non-Executive Director
3,000 -4.3%
123.32
US$369,965
3,000 -4.3% 123.32 US$369,965
2023-09-13 2023-09-13 PrS Proposed sale

Director

Non-Executive Director
7,000
122.72
US$859,039
7,000 122.72 US$859,039
2023-09-05 2023-09-01 PlS Planned sale

President and CEO

Officer
2,000 -6.2%
142.82
US$285,640
2,000 -6.2% 142.82 US$285,640
2023-09-01 2023-09-01 PrS Proposed sale

Officer; Director

Executive Director
2,000
144.93
US$289,860
2,000 144.93 US$289,860
2023-03-27 2023-03-24 PlS Planned sale

CFO

Officer
1,128 -10.4%
167.01
US$188,387
1,128 -10.4% 167.01 US$188,387
2023-03-27 2023-03-24 PlS Planned sale

CFO

Officer
1,000 -9.3%
167.01
US$167,010
1,000 -9.3% 167.01 US$167,010
2023-03-24 2023-03-24 PrS Proposed sale

Officer

Officer
2,128
167.01
US$355,397
2,128 167.01 US$355,397
2023-03-27 2023-03-22 PlS Planned sale

CFO

Officer
2,500 -20.5%
171.62
US$429,050
2,500 -20.5% 171.62 US$429,050
2023-03-22 2023-03-22 PrS Proposed sale

Officer

Officer
2,500
174.13
US$435,325
2,500 174.13 US$435,325
2023-03-16 2023-03-15 PlS Planned sale

CFO

Officer
1,000 -9.3%
165.71
US$165,710
1,000 -9.3% 165.71 US$165,710
2023-03-15 2023-03-15 PrS Proposed sale

Officer

Officer
1,000
165.71
US$165,710
1,000 165.71 US$165,710
2023-03-09 2023-03-09 PrS Proposed sale

Officer

Officer
400
169.97
US$67,988
400 169.97 US$67,988
2023-03-09 2023-03-09 PlS Planned sale

CFO

Officer
400 -4.0%
169.97
US$67,988
400 -4.0% 169.97 US$67,988
2023-02-09 2023-02-09 PlS Planned sale

CFO

Officer
1,000 -9.3%
184.27
US$184,270
1,000 -9.3% 184.27 US$184,270
2023-01-25 2023-01-23 PlS Planned sale

CFO

Officer
2,100 -17.8%
210.19
US$441,399
2,100 -17.8% 210.19 US$441,399
2023-01-17 2023-01-13 S Sale Non-Executive Director
1,571 -2.2%
191.31
US$300,548
1,571 -2.2% 191.31 US$300,548
2022-12-09 2022-12-08 S Sale Non-Executive Director
230 -19.4%
174.98
US$40,244
230 -19.4% 174.98 US$40,244
2022-11-21 2022-11-11 S Sale Non-Executive Director
2,500 -3.5%
175.45
US$438,625
2,500 -3.5% 175.45 US$438,625
2022-08-19 2022-08-18 S Sale Non-Executive Director
3,692 -11.4%
196.12
US$724,075
3,692 -11.4% 196.12 US$724,075
2022-08-17 2022-08-16 S Sale

CFO

Officer
1,372 -13.7%
200.58
US$275,196
1,372 -13.7% 200.58 US$275,196
2022-08-17 2022-08-15 S Sale

CFO

Officer
628 -5.9%
200.54
US$125,939
628 -5.9% 200.54 US$125,939
2022-08-09 2022-08-09 B Purchase Non-Executive Director
500 +inf%
200.00
US$100,000
500 +inf% 200.00 US$100,000
2022-06-22 2022-06-21 S Sale

CFO

Officer
722 -7.7%
188.22
US$135,898
722 -7.7% 188.22 US$135,898
2022-06-22 2022-06-21 S Sale

President and CEO

Officer
1,756 -7.5%
188.22
US$330,521
1,756 -7.5% 188.22 US$330,521
2022-06-22 2022-06-21 S Sale

SVP Commercial

Officer
555 -13.2%
188.22
US$104,464
555 -13.2% 188.22 US$104,464
2022-06-22 2022-06-21 S Sale

SVP Operations

Officer
392 -32.5%
188.22
US$73,784
392 -32.5% 188.22 US$73,784
2022-06-13 2022-06-07 S Sale Non-Executive Director
5,192 -17.9%
207.76
US$1,078,690
5,192 -17.9% 207.76 US$1,078,690
2022-04-22 2022-04-20 PlS Planned sale

CFO

Officer
72 -0.9%
250.44
US$18,032
72 -0.9% 250.44 US$18,032
2022-03-25 2022-03-24 PlS Planned sale

CFO

Officer
670 -8.2%
251.15
US$168,270
670 -8.2% 251.15 US$168,270
2022-03-25 2022-03-23 PlS Planned sale

CFO

Officer
930 -10.2%
251.29
US$233,700
930 -10.2% 251.29 US$233,700
2022-02-16 2022-02-15 PlS Planned sale Non-Executive Director
5,192 -18.5%
259.42
US$1,346,909
5,192 -18.5% 259.42 US$1,346,909
2022-01-04 2022-01-03 PlS Planned sale Non-Executive Director
1,000 -1.4%
327.77
US$327,770
1,000 -1.4% 327.77 US$327,770
2021-12-15 2021-12-14 S Sale

SVP Operations

Officer
1,659 -91.5%
325.02
US$539,208
1,659 -91.5% 325.02 US$539,208
2021-12-10 2021-12-10 PlS Planned sale

CFO

Officer
1,758 -19.0%
324.74
US$570,893
1,758 -19.0% 324.74 US$570,893
2021-12-06 2021-12-02 S Sale Non-Executive Director
2,320 -7.2%
310.61
US$720,615
2,320 -7.2% 310.61 US$720,615
2021-11-16 2021-11-15 PlS Planned sale Non-Executive Director
5,192 -19.2%
308.02
US$1,599,240
5,192 -19.2% 308.02 US$1,599,240
2021-11-12 2021-11-11 S Sale

CFO

Officer
1,000 -11.7%
317.12
US$317,120
1,000 -11.7% 317.12 US$317,120
2021-11-09 2021-11-08 S Sale

SVP Commercial

Officer
280 -9.4%
323.72
US$90,642
280 -9.4% 323.72 US$90,642
2021-11-09 2021-11-08 S Sale Non-Executive Director
18 -0.7%
324.07
US$5,833
18 -0.7% 324.07 US$5,833
2021-10-25 2021-10-20 PlS Planned sale

CFO

Officer
2,000 -21.0%
309.86
US$619,720
2,000 -21.0% 309.86 US$619,720
2021-10-04 2021-10-01 PlS Planned sale Non-Executive Director
1,250 -5.4%
304.48
US$380,600
1,250 -5.4% 304.48 US$380,600
2021-08-12 2021-08-11 PlS Planned sale Non-Executive Director
800 -1.1%
278.06
US$222,448
800 -1.1% 278.06 US$222,448