Mesa Laboratories, Inc.
US ˙ NasdaqGS ˙ US59064R1095

SecurityMLAB / Mesa Laboratories, Inc.
InsiderBrian David Archbold
This page shows the track record and history of Archbold Brian David insider trades in Mesa Laboratories, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Brian David Archbold in MLAB / Mesa Laboratories, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MLAB / Mesa Laboratories, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Brian David Archbold in MLAB / Mesa Laboratories, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2025-06-16 472 97.1180 472 97.1180 45,840 50 57.4400 -18,727 -40.85
2022-06-21 392 188.2240 392 188.2240 73,784
2021-12-14 1,659 325.0200 1,659 325.0200 539,208
2021-08-09 639 280.0300 639 280.0300 178,939
2021-06-17 400 256.5600 400 256.5600 102,624
2021-06-16 921 255.6700 921 255.6700 235,472
2021-06-16 415 260.1400 415 260.1400 107,958
2021-03-10 223 271.7800 223 271.7800 60,607
2020-11-09 533 272.1100 533 272.1100 145,035
2020-08-10 145 250.0000 145 250.0000 36,250
2020-08-10 420 250.0000 420 250.0000 105,000
2020-08-10 38 250.0000 38 250.0000 9,500
2020-02-21 123 268.1910 123 268.1910 32,987

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

MLAB / Mesa Laboratories, Inc. Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-06-25 2025-06-21 4 Archbold Brian David MLAB Common Stock F - Taxes D 95.8200 -385 -37 2,407
2025-06-25 2025-06-21 4 Archbold Brian David MLAB Common Stock M - Exercise D 95.8200 844 81 2,792
2025-06-20 2025-06-18 4 Archbold Brian David MLAB Common Stock F - Taxes D 92.9900 -1,166 -108 1,948
2025-06-20 2025-06-18 4 Archbold Brian David MLAB Common Stock M - Exercise D 92.9900 2,556 238 3,114
2025-06-18 2025-06-16 4 Archbold Brian David MLAB Common Stock S - Sale D 97.1180 -472 -46 558
2025-06-18 2025-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 495 1,030
2025-06-18 2025-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 535 535
2024-09-16 2024-09-13 4 Archbold Brian David MLAB Common Stock S - Sale D 125.0000 -1,499 -187 0
2024-09-06 2024-09-01 4 Archbold Brian David MLAB Common Stock F - Taxes D 133.6900 -386 -52 1,499
2024-09-06 2024-09-01 4 Archbold Brian David MLAB Common Stock M - Exercise D 845 1,885
2024-06-17 2024-06-14 4 Archbold Brian David MLAB Common Stock F - Taxes D 91.6000 -407 -37 1,040
2024-06-17 2024-06-14 4 Archbold Brian David MLAB Common Stock M - Exercise D 889 1,447
2023-12-19 2023-12-15 4 Archbold Brian David MLAB Common Stock S - Sale D 112.3600 -1,500 -169 558
2023-06-21 2023-06-16 4 Archbold Brian David MLAB Common Stock F - Taxes D 135.5500 -189 -26 2,058
2023-06-21 2023-06-16 4 Archbold Brian David MLAB Common Stock M - Exercise D 612 2,247
2023-06-16 2023-06-15 4 Archbold Brian David MLAB Common Stock F - Taxes D 134.4500 -283 -38 1,635
2023-06-16 2023-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 614 1,918
2022-09-02 2022-09-01 4 Archbold Brian David MLAB Common Stock F - Taxes D 178.4200 -412 -74 1,304
2022-09-02 2022-09-01 4 Archbold Brian David MLAB Common Stock M - Exercise D 357 1,716
2022-09-02 2022-09-01 4 Archbold Brian David MLAB Common Stock M - Exercise D 546 1,359
2022-06-22 2022-06-21 4 Archbold Brian David MLAB Common Stock S - Sale D 188.2240 -392 -74 813
2022-06-22 2022-06-21 4 Archbold Brian David MLAB Common Stock A - Award D 868 1,205
2022-06-22 2022-06-17 4 Archbold Brian David MLAB Common Stock F - Taxes D 185.5700 -155 -29 337
2022-06-22 2022-06-17 4 Archbold Brian David MLAB Common Stock M - Exercise D 338 492
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 226.72 -917 6,975
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 203.54 -532 7,892
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 142.00 -210 8,424
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Common Stock S - Sale D 325.0200 -1,659 -539 154
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Common Stock M - Exercise D 226.7200 917 208 1,813
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Common Stock M - Exercise D 203.5400 532 108 896
2021-12-15 2021-12-14 4 Archbold Brian David MLAB Common Stock M - Exercise D 142.4000 210 30 364
2021-09-01 2021-09-01 4 Archbold Brian David MLAB Non Qualified Stock Options A - Award D 268.85 3,421 8,634
2021-09-01 2021-09-01 4 Archbold Brian David MLAB Restricted Stock Units - 5 A - Award D 546 546
2021-09-01 2021-09-01 4 Archbold Brian David MLAB Restricted Stock Units - 4 A - Award D 1,066 1,066
2021-08-12 2021-08-09 4 Archbold Brian David MLAB Common Stock S - Sale D 280.0300 -639 -179 154
2021-06-21 2021-06-17 4 Archbold Brian David MLAB Common Stock S - Sale D 256.5600 -400 -103 793
2021-06-17 2021-06-16 4 Archbold Brian David MLAB Common Stock S - Sale D 260.1400 -415 -108 1,193
2021-06-17 2021-06-16 4 Archbold Brian David MLAB Common Stock S - Sale D 255.6700 -921 -235 1,608
2021-06-17 2021-06-15 4 Archbold Brian David MLAB Common Stock A - Award D 1,960 2,529
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Restricted Stock Unit - 3 M - Exercise D -419 0
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Restricted Stock Unit - 2 M - Exercise D -277 535
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Restricted Stock Units - 1 M - Exercise D -70 140
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Common Stock F - Taxes D 263.3000 -351 -92 569
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 419 920
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 277 501
2021-06-16 2021-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 70 224
2021-03-11 2021-03-11 4 Archbold Brian David MLAB Common Stock M - Exercise D 129.1000 145 19 377
2021-03-11 2021-03-10 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 129.10 -145 5,213
2021-03-11 2021-03-10 4 Archbold Brian David MLAB Common Stock S - Sale D 271.7800 -223 -61 154
2020-11-10 2020-11-09 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 203.54 -533 5,358
2020-11-10 2020-11-09 4 Archbold Brian David MLAB Common Stock S - Sale D 272.1100 -533 -145 232
2020-11-10 2020-11-09 4 Archbold Brian David MLAB Common Stock M - Exercise D 203.5400 533 108 765
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 142.40 -420 5,891
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Non Qualified Stock Option X - Other D 129.10 -145 6,311
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Common Stock S - Sale D 250.0000 -38 -10 232
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Common Stock S - Sale D 250.0000 -420 -105 270
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Common Stock M - Exercise D 142.4000 420 60 690
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Common Stock S - Sale D 250.0000 -145 -36 270
2020-08-13 2020-08-10 4 Archbold Brian David MLAB Common Stock M - Exercise D 129.1000 145 19 415
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Restricted Stock Units - 3 A - Award D 419 419
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Non Qualified Stock Options A - Award D 226.72 2,697 6,456
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Restricted Stock Units - 2 A - Award D 812 812
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Restricted Stock Units - 1 M - Exercise D -70 210
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Common Stock F - Taxes D 226.7200 -32 -7 270
2020-06-17 2020-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 70 302
2020-02-21 2020-02-21 4 Archbold Brian David MLAB Common Stock S - Sale D 268.1910 -123 -33 232
2019-06-18 2019-06-15 4 Archbold Brian David MLAB Restricted Stock Unit - 1 M - Exercise D -70 280
2019-06-18 2019-06-15 4 Archbold Brian David MLAB Common Stock F - Taxes D 202.3900 -25 -5 355
2019-06-18 2019-06-15 4 Archbold Brian David MLAB Common Stock M - Exercise D 70 380
2019-06-13 3 Archbold Brian David MLAB Restricted Stock Award D 620
2019-06-13 3 Archbold Brian David MLAB Restricted Stock Award D 620
2019-06-13 3 Archbold Brian David MLAB Restricted Stock Award D 620
P
Pembelian sekuritas non-derivatif atau derivatif di pasar terbuka atau secara pribadi.
S
Penjualan terbuka atau penjualan pribadi atas sekuritas non-derivatif atau derivatif.
A
Hibah, penghargaan, atau perolehan sekuritas lainnya dari perusahaan (seperti opsi)
C
Konversi turunan
D
Penjualan atau pengalihan sekuritas kembali ke perusahaan.
F
Pembayaran harga pelaksanaan atau kewajiban pajak menggunakan sebagian sekuritas yang diterima dari perusahaan.
G
Pemberian sekuritas oleh atau kepada orang dalam.
K
Swap ekuitas dan transaksi lindung nilai serupa
M
Pelaksanaan atau konversi sekuritas derivatif yang diterima dari perusahaan (seperti opsi)
V
Transaksi yang dilaporkan secara sukarela pada Formulir 4.
J
Lainnya (disertai dengan catatan kaki yang menjelaskan transaksi tersebut)