NASDAQ:MLAB

Mesa Laboratories Stock Insider Trading

Technology > Hardware, Equipment & Parts

Buy MLAB

*Your capital is at risk

$104.38

-2.28 (-2.14%)

At Close: Jun 03, 2026

Mesa Laboratories Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 68.16. In total, the insiders bought 283.91K and sold 32.68K 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)	68.16
● Buy	283.91K shares
● Sell	32.68K shares
81% Buy Activity Weak Positive Correlation
Buy Signal High Confidence Apr 14, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 68.16. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (81% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 21, 2025 Buy	Restricted Stock Units - 7 M-Exempt	Archbold Brian David SVP Operations	Officer	844 Value: $88.1K
Jun 21, 2025 Buy	Restricted Stock Units - 7 M-Exempt	Archbold Brian David SVP Operations	Officer	844 Value: $88.1K
Jun 21, 2025 Sell	Common Stock F-InKind	Archbold Brian David SVP Operations	Officer	385 Value: $36.9K
Jun 21, 2025 Buy	Common Stock M-Exempt	Archbold Brian David SVP Operations	Officer	844 Value: $80.9K
Jun 21, 2025 Buy	Restricted Stock Units - 6 M-Exempt	Sakys John CFO	C-Suite Officer	1 036 Value: $108.1K
Jun 21, 2025 Sell	Common Stock F-InKind	Sakys John CFO	C-Suite Officer	454 Value: $43.5K
Jun 21, 2025 Buy	Common Stock M-Exempt	Sakys John CFO	C-Suite Officer	1 036 Value: $99.3K
Jun 21, 2025 Buy	Common Stock M-Exempt	Owens Gary M President And CEO	CEO / President	3 301 Value: $316.3K
Jun 21, 2025 Sell	Common Stock F-InKind	Owens Gary M President And CEO	CEO / President	1 445 Value: $138.5K
Jun 21, 2025 Buy	Restricted Stock Units - 8 M-Exempt	Owens Gary M President And CEO	CEO / President	3 301 Value: $344.6K
Jun 21, 2025 Buy	Restricted Stock Units - 8 M-Exempt	Owens Gary M President And CEO	CEO / President	3 301 Value: $344.6K
Jun 21, 2025 Sell	Common Stock F-InKind	Owens Gary M President And CEO	CEO / President	1 445 Value: $138.5K
Jun 21, 2025 Buy	Common Stock M-Exempt	Owens Gary M President And CEO	CEO / President	3 301 Value: $316.3K
Jun 18, 2025 Buy	Common Stock M-Exempt	Owens Gary M President And CEO	CEO / President	8 707 Value: $809.7K
Jun 18, 2025 Sell	Common Stock F-InKind	Owens Gary M President And CEO	CEO / President	3 810 Value: $354.3K
Jun 18, 2025 Buy	Restricted Stock Units - 9 M-Exempt	Owens Gary M President And CEO	CEO / President	8 707 Value: $809.7K
Jun 18, 2025 Buy	Restricted Stock Units - 8 M-Exempt	Archbold Brian David SVP Operations	Officer	2 556 Value: $237.7K
Jun 18, 2025 Buy	Common Stock M-Exempt	Archbold Brian David SVP Operations	Officer	2 556 Value: $237.7K
Jun 18, 2025 Sell	Common Stock F-InKind	Archbold Brian David SVP Operations	Officer	1 166 Value: $108.4K
Jun 18, 2025 Buy	Common Stock M-Exempt	Sakys John CFO	C-Suite Officer	2 840 Value: $264.1K
Jun 18, 2025 Sell	Common Stock F-InKind	Sakys John CFO	C-Suite Officer	1 243 Value: $115.6K
Jun 18, 2025 Buy	Restricted Stock Units - 7 M-Exempt	Sakys John CFO	C-Suite Officer	2 840 Value: $264.1K
Jun 18, 2025 Buy	Restricted Stock Units - 7 M-Exempt	Sakys John CFO	C-Suite Officer	2 840 Value: $264.1K
Jun 18, 2025 Sell	Common Stock F-InKind	Sakys John CFO	C-Suite Officer	1 243 Value: $115.6K
Jun 18, 2025 Buy	Common Stock M-Exempt	Sakys John CFO	C-Suite Officer	2 840 Value: $264.1K

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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