Seacoast Banking director granted 2,015 shares of stock

Seacoast Banking Corporation of Florida director Dennis J. Arczynski received a grant of 2,015 shares of Common Stock on July 31, 2026, at $34.74 per share.

Rhea-AI Filing Summary

Seacoast Banking Corporation of Florida director Dennis J. Arczynski received a grant of 2,015 shares of Common Stock on July 31, 2026, at $34.74 per share. The shares were issued for 2026 Board services under Seacoast's 2021 Incentive Plan and are held in an LLC he controls with sole voting and dispositive power.

He also directly holds a stock option described as a Common Stock Right to Buy covering 2,142 underlying Common shares at an exercise price of $22.65, expiring February 6, 2027, granted under the 2013 Incentive Plan, along with other Common Stock positions through a non-employee directors deferred compensation plan, joint ownership with his spouse, and a SEP Plan.

Insider Trade Summary

Grant/Award: 2,015 shares

Grant/Award 6 txns

Insider ARCZYNSKI DENNIS J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1, F2	2,015	$34.74	$70K
holding	Common Stock Right to Buy F6	--	--	--
holding	Common Stock F3	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock F4	--	--	--
holding	Common Stock F5	--	--	--

Holdings After Transaction: Common Stock — 66,240.9519 shares (Direct); Common Stock Right to Buy — 2,142 contracts (Direct)

Footnotes (6)

1. F1. Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026
2. F2. Held in LLC in which the reporting person is principal, as to which shares the reporting person has sole voting and dispositive power
3. F3. Held in Seacoast's Non-employee Directors Deferred Compensation Plan
4. F4. Held jointly with spouse
5. F5. Held in SEP Plan
6. F6. Granted pursuant to Seacoast Banking Corporation of Florida's 2013 Incentive Plan

Key Figures

Stock grant shares: 2,015 shares Grant price: $34.74 per share Option underlying shares: 2,142 shares +2 more

5 metrics

Stock grant shares 2,015 shares Common Stock granted on July 31, 2026 for Board services

Grant price $34.74 per share Price used for 2,015-share Common Stock grant on July 31, 2026

Option underlying shares 2,142 shares Underlying Common Stock for Common Stock Right to Buy held directly

Option exercise price $22.65 per share Exercise price of Common Stock Right to Buy on 2,142 shares

Option expiration date 2027-02-06 Expiration of Common Stock Right to Buy granted under 2013 Incentive Plan

Key Terms

2021 Incentive Plan, Non-employee Directors Deferred Compensation Plan, SEP Plan, dispositive power, +1 more

5 terms

2021 Incentive Plan financial

"Stock issued from Seacoast's 2021 Incentive Plan for Board Services"

Non-employee Directors Deferred Compensation Plan financial

"Held in Seacoast's Non-employee Directors Deferred Compensation Plan"

SEP Plan financial

"Held in SEP Plan"

dispositive power financial

"shares the reporting person has sole voting and dispositive power"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Common Stock Right to Buy financial

"Common Stock Right to Buy with 2,142 underlying Common shares"

FAQ

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

What stock award did Seacoast Banking (SBCF) director Dennis Arczynski receive?

Dennis J. Arczynski received a grant of 2,015 Seacoast common shares on July 31, 2026, at $34.74 per share. The award was issued for 2026 Board services under Seacoast’s 2021 Incentive Plan and is held in an LLC he controls.

How are Dennis Arczynski’s newly granted SBCF shares held?

The 2,015 granted shares are held in an LLC where Arczynski is principal and has sole voting and dispositive power. This means he controls how these shares are voted and when they may be sold or transferred, according to the ownership footnote.

What stock options or rights does Dennis Arczynski hold in SBCF?

Arczynski holds a Common Stock Right to Buy covering 2,142 underlying shares with an exercise price of $22.65 per share. This right expires on February 6, 2027 and was granted under Seacoast’s 2013 Incentive Plan.

Were Dennis Arczynski’s SBCF transactions made under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not marked as affirmative. The reported activity is a stock grant for Board service rather than an open-market trade, and there is no note describing a pre-arranged trading plan.

What other types of SBCF share holdings are reported for Dennis Arczynski?

Beyond the new grant and option, Arczynski has Common Stock positions held through a Non-employee Directors Deferred Compensation Plan, jointly with his spouse, and in a SEP Plan, reflecting multiple account types and ownership arrangements for his Seacoast holdings.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/04/2026 - 07:58 PM Accepted by SEC EDGAR 08/04/2026 - 07:57 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^*

ARCZYNSKI DENNIS J

(Last) (First) (Middle)

SEACOAST BANKING CORPORATION OF FLORIDA

P. O. BOX 9012

(Street)

STUART FLORIDA 34995

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SEACOAST BANKING CORP OF FLORIDA [ SBCF ]

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)
07/31/2026

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	07/31/2026		A(1)		2,015	A	$34.74	15,331	D(2)
Common Stock								37,799.9519	D(3)
Common Stock								1,000	D
Common Stock								9,110	D(4)
Common Stock								3,000	D(5)

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
Common Stock Right to Buy(6)	$22.65							02/06/2017	02/06/2027	Common Stock	2,142		2,142	D

Explanation of Responses:

1. Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

2. Held in LLC in which the reporting person is principal, as to which shares the reporting person has sole voting and dispositive power

3. Held in Seacoast's Non-employee Directors Deferred Compensation Plan

4. Held jointly with spouse

5. Held in SEP Plan

6. Granted pursuant to Seacoast Banking Corporation of Florida's 2013 Incentive Plan

Remarks:

	/s/ Kathy L. Hsu as Power of Attorney for Dennis J. Arczynski	08/04/2026
	** 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)