MMSI director granted 3,457 restricted stock units

McDonnell Michael R. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

McDonnell Michael R. reported acquisition or exercise transactions in this Form 4 filing.

Merit Medical Systems director Michael R. McDonnell received an equity grant of 3,457 shares of common stock in the form of restricted stock units. The grant was made at no cash cost to him as a compensation award and increased his directly held common shares to 9,852.

The RSUs were granted under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan and will vest on May 3, 2027, provided he continues to serve the company through that date. This is a routine stock-based compensation award rather than an open-market purchase or sale.

Insider Trade Summary

Grant/Award: 3,457 shares

Grant/Award 1 txn

Insider McDonnell Michael R.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, No Par Value	3,457	$0.00	$0.00

Holdings After Transaction: Common Stock, No Par Value — 9,852 shares (Direct)

Footnotes (1)

1. F1. The reported transaction involved the reporting person's receipt of a grant of 3,457 restricted stock units (RSUs) under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan. The RSUs granted to the reporting person will vest on May 3, 2027. Vesting of the RSUs is subject to continued service to the issuer through the vesting date.

Key Figures

RSUs granted: 3,457 shares Grant price per share: $0.0000 per share Shares held after grant: 9,852 shares +2 more

5 metrics

RSUs granted 3,457 shares Restricted stock unit grant to director on May 18, 2026

Grant price per share $0.0000 per share Compensation award, not an open-market purchase

Shares held after grant 9,852 shares Total directly held common stock following the transaction

Vesting date May 3, 2027 RSUs vest subject to continued service through this date

Acquisition transactions 1 transaction Single grant/award acquisition reported in Form 4

Key Terms

restricted stock units (RSUs), 2026 Equity Incentive Plan, vesting, continued service

4 terms

restricted stock units (RSUs) financial

"The reported transaction involved the reporting person's receipt of a grant of 3,457 restricted stock units (RSUs) under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan."

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

2026 Equity Incentive Plan financial

"The reported transaction involved the reporting person's receipt of a grant of 3,457 restricted stock units (RSUs) under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan."

vesting financial

"The RSUs granted to the reporting person will vest on May 3, 2027."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

continued service financial

"Vesting of the RSUs is subject to continued service to the issuer through the vesting date."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did MMSI director Michael R. McDonnell report?

Michael R. McDonnell reported receiving a grant of 3,457 restricted stock units as equity compensation. The award is in Merit Medical Systems common stock and was granted at no cash cost to him, reflecting routine director compensation rather than an open-market trade.

How many MMSI shares does Michael R. McDonnell hold after this Form 4?

After this equity award, Michael R. McDonnell directly holds 9,852 shares of Merit Medical Systems common stock. This total reflects the addition of 3,457 restricted stock units granted in the transaction, which are scheduled to vest in 2027 subject to continued service.

What are the vesting terms of Michael R. McDonnell’s new MMSI RSUs?

The 3,457 restricted stock units granted to Michael R. McDonnell vest on May 3, 2027. Vesting is contingent on his continued service to Merit Medical Systems through that vesting date, meaning the award is earned over time rather than immediately fully owned.

Was Michael R. McDonnell’s MMSI Form 4 a stock purchase or sale?

The Form 4 reflects an acquisition of stock through a grant, not a market purchase or sale. McDonnell received 3,457 restricted stock units as a compensation award under the company’s 2026 Equity Incentive Plan, at a reported price of zero per share.

Under which plan were Michael R. McDonnell’s MMSI RSUs granted?

The 3,457 restricted stock units reported on the Form 4 were granted under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan. This plan provides stock-based compensation such as RSUs to eligible participants, aligning their interests with long-term shareholder value.

What does the zero price per share mean on this MMSI Form 4 grant?

The reported price of 0.0000 per share indicates the RSUs were granted as compensation, not bought in the market. McDonnell did not pay cash for the 3,457 units; instead, they represent a stock-based award that will vest if service conditions are met.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/19/2026 - 06:02 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

McDonnell Michael R.

(Last) (First) (Middle)

1600 W MERIT PARKWAY

(Street)

SOUTH JORDAN UTAH 84095

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026

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

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

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

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	05/18/2026		A		3,457(1)	A	$0	9,852	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

Explanation of Responses:

1. The reported transaction involved the reporting person's receipt of a grant of 3,457 restricted stock units (RSUs) under the Merit Medical Systems, Inc. 2026 Equity Incentive Plan. The RSUs granted to the reporting person will vest on May 3, 2027. Vesting of the RSUs is subject to continued service to the issuer through the vesting date.

	/s/ Brian G. Lloyd, Attorney-in-Fact	05/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)