NASDAQ:MMSI

Merit Medical Systems Stock Insider Trading

Healthcare > Medical - Instruments & Supplies

Buy MMSI

*Your capital is at risk

$60.65

-0.240 (-0.394%)

At Close: Jun 03, 2026

Merit Medical Systems Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -47.23. In total, the insiders bought 771.65K and sold 427.99K MMSI 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)	-47.23
● Buy	771.65K shares
● Sell	427.99K shares
70% Buy Activity Negligible or No Correlation
Buy Signal Low Confidence Feb 26, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory negative Insider Power Score of -47.23. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
May 20, 2026 Buy	Common Stock, No Par Value M-Exempt	Gunderson Thomas J. Director	Director	7 500 Value: $391.3K
May 20, 2026 Buy	Common Stock, No Par Value M-Exempt	Gunderson Thomas J. Director	Director	13 750 Value: $717.3K
May 20, 2026 Buy	Non-qualified stock options (right to buy) M-Exempt	Gunderson Thomas J. Director	Director	7 500 Value: $391.3K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Millner F. Ann Ed.d. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Gunderson Thomas J. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Evans Stephen C. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Kaiser Laura S. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Perez Silvia M. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Carpenter Lonny J. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Mcdonnell Michael R. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Ward Lynne N. Director	Director	3 457 Value: $220.0K
May 18, 2026 Buy	Common Stock, No Par Value A-Award	Ward Scott R. Director	Director	3 457 Value: $220.0K
May 13, 2026 Buy	Common Stock J-Other	Ward Scott R. Insider	Other	0 Value: $0
May 11, 2026 Buy	Common Stock, No Par Value P-Purchase	Smith Christian Adam Chief Commercial Officer	Officer	1 626 Value: $99.2K
May 07, 2026 Sell	Common Stock, No Par Value S-Sale	Ward Lynne N. Director	Director	5 000 Value: $313.0K
May 07, 2026 Buy	Common Stock, No Par Value P-Purchase	Lloyd Brian G. Chief Legal Officer, Secretary	Officer	2 000 Value: $125.3K
May 06, 2026 Buy	Common Stock, No Par Value P-Purchase	Aronson Martha Goldberg President And CEO	CEO / President	2 000 Value: $120.9K
May 06, 2026 Buy	Common Stock, No Par Value P-Purchase	Parra Raul Jr. CFO And Treasurer	C-Suite Officer	1 500 Value: $91.5K
May 05, 2026 Buy	Common Stock, No Par Value P-Purchase	Voigt Michel J. Chief Human Resources Officer	Officer	2 250 Value: $136.5K
Apr 02, 2026 Buy	Common Stock J-Other	Lampropoulos Fred P. Insider	Other	0 Value: $0
Feb 26, 2026 Buy	Common Stock, No Par Value A-Award	Parra Raul Jr. CFO And Treasurer	C-Suite Officer	12 305 Value: $960.0K
Feb 26, 2026 Buy	Common Stock, No Par Value A-Award	Parra Raul Jr. CFO And Treasurer	C-Suite Officer	9 613 Value: $750.0K
Feb 26, 2026 Sell	Common Stock, No Par Value F-InKind	Parra Raul Jr. CFO And Treasurer	C-Suite Officer	5 778 Value: $450.8K
Feb 26, 2026 Buy	Common Stock, No Par Value A-Award	Parra Raul Jr. CFO And Treasurer	C-Suite Officer	17 002 Value: $1.33M
Feb 26, 2026 Buy	Common Stock, No Par Value A-Award	Smith Christian Adam Chief Commercial Officer	Officer	8 203 Value: $640.0K

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 MERIT MEDICAL SYSTEMS

Merit Medical Systems, Inc. designs, develops, manufactures, and markets single-use medical products for interventional, diagnostic, and therapeutic procedures, primarily in cardiology, radiology, oncology, critical care, and endoscopy. The company operates in two segments, Cardiovascular and Endoscopy. It provides peripheral intervention products for the diagnosis and treatment of diseases in peripheral vessels and organs; and cardiac interventi...

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