Thomas J. Gunderson - 20 May 2026 Form 4 Insider Report for MERIT MEDICAL SYSTEMS INC (MMSI)

Reporting relationship: Director
Issuer ticker: MMSI
Reported as of: 20 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 May 2026, 09:10:10 UTC
Prior SEC filing: 19 May 2026
Next SEC filing: 17 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Brian G. Lloyd, Attorney-in-Fact

Key filing fact

Thomas J. Gunderson filed Form 4 for MERIT MEDICAL SYSTEMS INC (MMSI) on 21 May 2026.

Key facts

This page summarizes Thomas J. Gunderson's Form 4 filing for MERIT MEDICAL SYSTEMS INC (MMSI).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 21 May 2026, 09:10.

Change

Previous filing in this sequence was filed on 19 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001708144 Primary reporting owner

Gunderson Thomas J.

Relationship: Director
Address: 1600 WEST MERIT PARKWAY, SOUTH JORDAN
Signature: /s/ Brian G. Lloyd, Attorney-in-Fact
Signature date: 21 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MMSI transaction

Common Stock, No Par Value

Options Exercise

Transaction value
Shares: +13,750
Change %: +35%
Price: $52.17^*
Shares after: 53,241
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

MMSI transaction

Common Stock, No Par Value

Options Exercise

Transaction value
Shares: +7,500
Change %: +14%
Price: $52.17^*
Shares after: 60,741
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MMSI transaction Derivative

Non-qualified stock options (right to buy)

Options Exercise

Transaction value
Shares: -13,750
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 13,750
Exercise price: $52.17

MMSI transaction Derivative

Non-qualified stock options (right to buy)

Options Exercise

Transaction value
Shares: -7,500
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,500
Exercise price: $52.17

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The reported transactions involved the reporting person's exercise of stock options for an aggregate of 21,250 shares of common stock. The exercise prices were paid in cash, and no shares were sold in connection with the option exercises.