Simmons First (SFNC) director Casteel gets 4,860 RSUs and 1,215 shares vest

Rhea-AI Filing Summary

Simmons First National Corp. director Marty Casteel reported equity award activity involving restricted stock units (RSUs) and common stock. On February 2, 2026, he received 4,860 RSUs at an exercise price of $0, each representing a contingent right to one share of SFNC common stock.

On the same date, 1,215 RSUs vested and were converted into 1,215 shares of SFNC common stock at $0, leaving 3,645 RSUs outstanding. Following these transactions, Casteel beneficially owned 217,533 shares of SFNC common stock directly. The remaining RSUs are scheduled to vest in three equal installments on April 1, July 1, and October 1, 2026, with shares delivered within 30 days of each vesting date, subject to specified events that may accelerate vesting.

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^*

Casteel Marty

(Last) (First) (Middle)

C/O SIMMONS FIRST NATIONAL CORP.

501 MAIN STREET

(Street)

PINE BLUFF AR 71601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SIMMONS FIRST NATIONAL CORP [ SFNC ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

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
SFNC Common Stock	02/02/2026		M		1,215	A	(1)	217,533	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
Restricted Stock Units	(2)	02/02/2026		A		4,860		(3)	(3)	SFNC Common Stock	4,860	$0	4,860	D
Restricted Stock Units	(1)	02/02/2026		M			1,215	(4)	(4)	SFNC Common Stock	1,215	$0	3,645(5)	D

Explanation of Responses:

1. Restricted Stock Units convert into shares of SFNC common stock on a one-for-one basis.

2. Each Restricted Stock Unit represents a contingent right to receive one share of SFNC common stock.

3. 1,215 Restricted Stock Units vest on February 2, 2026; 1,215 Restricted Stock Units vest on April 1, 2026; 1,215 Restricted Stock Units vest on July 1, 2026; and 1,215 Restricted Stock Units vest on October 1, 2026. SFNC shares will be delivered within 30 days of vesting. Events such as retirement, death, disability, and other specified events in the award agreement may result in earlier vesting.

4. The Restricted Stock Units vested on February 2, 2026.

5. 1,215 Restricted Stock Units vest on April 1, 2026; 1,215 Restricted Stock Units vest on July 1, 2026; and 1,215 Restricted Stock Units vest on October 1, 2026. SFNC shares will be delivered within 30 days of vesting. Events such as retirement, death, disability, and other specified events in the award agreement may result in earlier vesting.

	/s/ Natalie Gassiott, attorney-in-fact for Marty Casteel	02/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did SFNC director Marty Casteel report on February 2, 2026?

Marty Casteel reported a new RSU grant and a vesting event. He received 4,860 restricted stock units at $0 and had 1,215 RSUs vest into 1,215 shares of SFNC common stock the same day, reflecting routine equity compensation activity.

How many Simmons First (SFNC) shares does Marty Casteel own after these Form 4 transactions?

After the reported transactions, Marty Casteel beneficially owns 217,533 SFNC common shares. This total reflects his direct holdings following the vesting of 1,215 restricted stock units into common stock on February 2, 2026, as disclosed in the filing.

What restricted stock unit (RSU) grant did Marty Casteel receive from Simmons First (SFNC)?

Casteel received 4,860 restricted stock units at an exercise price of $0. Each RSU converts into one share of SFNC common stock, representing a contingent right to stock as the units vest on specified future dates during 2026.

When will Marty Casteel’s remaining SFNC restricted stock units vest?

The remaining 3,645 restricted stock units vest in three equal installments in 2026. According to the disclosure, 1,215 RSUs vest on April 1, 2026, 1,215 on July 1, 2026, and 1,215 on October 1, 2026, with shares delivered within 30 days of each vest.

Did Marty Casteel pay anything for the SFNC restricted stock units or shares received?

No, the reported RSU-related transactions were at an exercise price of $0. The Form 4 shows both the RSU grant of 4,860 units and the conversion of 1,215 RSUs into common shares occurred at a stated price per share of $0.

What does each Simmons First (SFNC) restricted stock unit represent for Marty Casteel?

Each restricted stock unit represents a contingent right to one SFNC share. The filing states that RSUs convert into SFNC common stock on a one-for-one basis, with delivery of shares generally within 30 days after each scheduled vesting date.