NASDAQ:MLAB

Mesa Laboratories Stock Insider Trading

Technology > Hardware, Equipment & Parts

Buy MLAB

*Your capital is at risk

$91.97

-1.26 (-1.35%)

At Close: Jun 23, 2026

Mesa Laboratories Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 42.64. In total, the insiders bought 219.66K and sold 27.34K MLAB shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	42.64
● Buy	219.66K shares
● Sell	27.34K shares
85% Buy Activity Negligible or No Correlation
Buy Signal Medium Confidence Apr 14, 2026 Analysis Breakdown: Supported by a positive Insider Power Score of 42.64. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (85% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 15, 2027 Buy	Restricted Stock Units 6	Crennen Lyndsey Elizabeth Chief Accounting Officer	Officer	1 443 Value: $132.7K
Jun 13, 2027 Buy	Restricted Stock Units	Crennen Lyndsey Elizabeth Chief Accounting Officer	Officer	542 Value: $49.8K
Mar 02, 2027 Buy	Restricted Stock Units - 5	Crennen Lyndsey Elizabeth Chief Accounting Officer	Officer	1 800 Value: $165.5K
Jun 22, 2026 Sell	Common Stock S-Sale	Crennen Lyndsey Elizabeth Cao	Officer	442 Value: $39.6K
Jun 22, 2026 Sell	Common Stock S-Sale	Archbold Brian David SVP Operations	Officer	2 516 Value: $225.2K
Jun 22, 2026 Sell	Common Stock S-Sale	Sakys John CFO	C-Suite Officer	2 827 Value: $253.0K
Jun 21, 2026 Buy	Restricted Stock Unit - 1	Crennen Lyndsey Elizabeth Chief Accounting Officer	Officer	125 Value: $11.5K
Jun 19, 2026 Buy	Restricted Stock Units - 3	Crennen Lyndsey Elizabeth Chief Accounting Officer	Officer	735 Value: $67.6K
Jun 18, 2026 Buy	Restricted Stock Units - 6 M-Exempt	Sakys John CFO	C-Suite Officer	1 036 Value: $98.5K
Jun 18, 2026 Buy	Restricted Stock Units - 7 M-Exempt	Sakys John CFO	C-Suite Officer	2 756 Value: $262.1K
Jun 18, 2026 Buy	Common Stock M-Exempt	Sakys John CFO	C-Suite Officer	1 036 Value: $98.5K
Jun 18, 2026 Buy	Restricted Stock Unit - 1 M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	125 Value: $11.9K
Jun 18, 2026 Buy	Restricted Stock Units - 2 M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	233 Value: $22.2K
Jun 18, 2026 Buy	Restricted Stock Units - 3 M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	368 Value: $35.0K
Jun 18, 2026 Buy	Common Stock M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	125 Value: $11.9K
Jun 18, 2026 Buy	Common Stock M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	233 Value: $22.2K
Jun 18, 2026 Buy	Common Stock M-Exempt	Crennen Lyndsey Elizabeth Cao	Officer	368 Value: $35.0K
Jun 18, 2026 Buy	Common Stock A-Award	Crennen Lyndsey Elizabeth Cao	Officer	263 Value: $25.0K
Jun 18, 2026 Buy	Common Stock A-Award	Archbold Brian David SVP Operations	Officer	1 859 Value: $176.8K
Jun 18, 2026 Buy	Common Stock M-Exempt	Archbold Brian David SVP Operations	Officer	2 480 Value: $235.8K
Jun 18, 2026 Buy	Common Stock M-Exempt	Archbold Brian David SVP Operations	Officer	844 Value: $80.3K
Jun 18, 2026 Buy	Restricted Stock Units - 8 M-Exempt	Archbold Brian David SVP Operations	Officer	2 480 Value: $235.8K
Jun 18, 2026 Buy	Restricted Stock Units - 7 M-Exempt	Archbold Brian David SVP Operations	Officer	844 Value: $80.3K
Jun 18, 2026 Buy	Common Stock A-Award	Sakys John CFO	C-Suite Officer	2 282 Value: $217.0K
Jun 18, 2026 Buy	Common Stock M-Exempt	Sakys John CFO	C-Suite Officer	2 756 Value: $262.1K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT MESA LABORATORIES

Mesa Laboratories, Inc. develops, manufactures, and sells life sciences tools and quality control products and services in the United States, Europe, the Asia Pacific, and internationally. The company's Sterilization and Disinfection Control segment manufactures and sells biological, cleaning, and chemical indicators that are used to assess the effectiveness of sterilization and disinfection processes in the hospital, dental, medical device, and ...

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