DENNIS J. ARCZYNSKI - 03 Feb 2026 Form 4 Insider Report for SEACOAST BANKING CORP OF FLORIDA (SBCF)

Role
Director
Signature
/s/ Kathy L. Hsu as Power of Attorney for Dennis J. Arczynski
Issuer symbol
SBCF
Transactions as of
03 Feb 2026
Net transactions value
-$67,765
Form type
4
Filing time
05 Feb 2026, 16:17:43 UTC
Previous filing
11 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
ARCZYNSKI DENNIS J Director SEACOAST BANKING CORPORATION OF FLORIDA, P. O. BOX 9012, STUART /s/ Kathy L. Hsu as Power of Attorney for Dennis J. Arczynski 05 Feb 2026 0001398345

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SBCF Common Stock Options Exercise $49,199 +3,419 +342% $14.39 4,419 03 Feb 2026 Direct
transaction SBCF Common Stock Sale $116,964 -3,419 -77% $34.21 1,000 03 Feb 2026 Direct
holding SBCF Common Stock 13,316 03 Feb 2026 Direct F1
holding SBCF Common Stock 37,799 03 Feb 2026 Direct F2
holding SBCF Common Stock 9,110 03 Feb 2026 Direct F3
holding SBCF Common Stock 3,000 03 Feb 2026 Direct F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SBCF Common Stock Right to Buy Options Exercise $0 -3,419 -100% $0.000000 0 03 Feb 2026 Common Stock 3,419 $14.39 Direct F5
holding SBCF Common Stock Right to Buy 2,142 03 Feb 2026 Common Stock 2,142 $22.65 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Held in LLC in which the reporting person is principal, as to which shares the reporting person has sole voting and dispositive power
F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan
F3 Held jointly with spouse
F4 Held in SEP Plan
F5 Granted pursuant to Seacoast Banking Corporation of Florida's 2013 Incentive Plan