[Form 4] MERIT MEDICAL SYSTEMS INC Insider Trading Activity

Rhea-AI Filing Summary

Merit Medical Systems executive chairman and director reported selling 5,000 shares of common stock on 11/18/2025 at a weighted average price of $84.826 per share. Following this sale, he directly owns 1,074,955 shares, with additional indirect holdings including 8,280.258 shares held by his spouse, 98,132 shares in a 401(k) plan as of 10/31/2025, and 90 shares held by his spouse as custodian for a child.

He also holds non-qualified stock options to purchase 100,334 shares at $37.71 exercisable through 02/26/2027, 58,083 shares at $56.25 exercisable through 03/19/2028, and 54,302 shares at $70.58 exercisable through 02/28/2030, each becoming exercisable in 25% annual installments from their respective commencement dates. The filing notes the spouse’s holdings are disclaimed as beneficial ownership.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lampropoulos Fred P.

(Last) (First) (Middle)

1600 WEST MERIT PARKWAY

(Street)

SOUTH JORDAN UT 84095

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MERIT MEDICAL SYSTEMS INC [ MMSI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Chairman

3. Date of Earliest Transaction (Month/Day/Year)
11/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, No Par Value								8,280.258	I	By spouse(1)
Common Stock, No Par Value								98,132	I	By 401(k) Plan(2)
Common Stock, No Par Value								90	I	By spouse as custodian for child(1)
Common Stock, No Par Value	11/18/2025		S		5,000	D	$84.826(3)	1,074,955	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-qualified stock options (right to buy)	$37.71							02/26/2021(4)	02/26/2027	Common Stock	100,334		100,334	D
Non-qualified stock options (right to buy)	$56.25							03/19/2022(5)	03/19/2028	Common Stock	58,083		58,083	D
Non-qualified stock options (right to buy)	$70.58							02/28/2024(6)	02/28/2030	Common Stock	54,302		54,302	D

Explanation of Responses:

1. Represents securities held by the spouse of the Reporting Person. The Reporting Person expressly disclaims beneficial ownership of the securities owned by his spouse.

2. The 401(k) number represents plan holdings as of 10/31/2025.

3. The price reported in Column 4 of Table 1 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.03 to $86.44, inclusive. The Reporting Person undertakes to provide to Merit Medical Systems, Inc., any security holder of Merit Medical Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

4. Becomes exercisable in equal annual installments of 25% commencing 2/26/2021.

5. Becomes exercisable in equal annual installments of 25% commencing 3/19/2022.

6. Becomes exercisable in equal annual installments of 25% commencing 2/28/2024.

	/s/ Brian G. Lloyd, Attorney-in-Fact	11/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did MMSI report in this Form 4?

The executive chairman of Merit Medical Systems (MMSI) reported selling 5,000 shares of common stock on 11/18/2025 at a weighted average price of $84.826 per share.

How many MMSI shares does the reporting person own after the transaction?

After the reported sale, the executive chairman directly owns 1,074,955 MMSI common shares, in addition to several indirect holdings through his spouse, a 401(k) plan, and as custodian for a child.

What indirect MMSI shareholdings are disclosed for the reporting person?

Indirect holdings include 8,280.258 shares held by his spouse, 98,132 shares held by a 401(k) plan as of 10/31/2025, and 90 shares held by his spouse as custodian for a child, with beneficial ownership of the spouse’s shares expressly disclaimed.

What stock options does the MMSI insider hold and at what exercise prices?

The executive chairman holds non-qualified stock options for 100,334 shares at $37.71 expiring 02/26/2027, 58,083 shares at $56.25 expiring 03/19/2028, and 54,302 shares at $70.58 expiring 02/28/2030.

How do the MMSI stock options held by the insider vest?

Each option grant becomes exercisable in equal annual installments of 25%, starting on its respective commencement date: 02/26/2021, 03/19/2022, and 02/28/2024.

What does the Form 4 say about the sale price range for the MMSI shares?

The filing states that the $84.826 sale price is a weighted average, with the 5,000 shares sold in multiple transactions at prices ranging from $84.03 to $86.44, inclusive.