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BCS

Changes in Beneficial Ownership · 4

Seacoast Banking Corporation of Florida

SBCFNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Sep 17, 2026Accepted Sep 17, 2026, 4:30 PM EDTFiling CIK 730708Accession 0001078596-26-000007
Share

Structured filing — 4

wk-form4_1789677008.xml

Open full document ↗

Filing details

Report period
2026-09-16
Issuer
SEACOAST BANKING CORP OF FLORIDA
Issuer CIK
0000730708
Trading symbol
SBCF
Rule 10b5-1 indication
Checked

Reporting owner 1

Name
HUDSON DENNIS S III
Reporting owner CIK
0001078596
Relationship
Director
Address
P.O. BOX 9012, 815 COLORADO AVENUE, STUART, FL, 34995-9012

Non-derivative transactions

Non-derivative transactions · 1 reported row
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnership
Common Stock2026-09-16S · Form 4[F1]12,000D34.15[F2]206,869D[F3]
Table key
S · Form 4
Sale on the market or privately
D
Direct

Non-derivative holdings

Non-derivative holdings · 5 reported rows
SecurityAmount ownedOwnershipNature of ownership
Common Stock18,104D[F4]
Common Stock35,290.6666D[F5]
Common Stock9,356D[F6]
Common Stock21,867IHeld by Spouse in Trust
Common Stock51,416IHeld by Sherwood Partners, Ltd, family partnership
Table key
D
Direct
I
Indirect

Derivative holdings

Derivative holdings · 2 reported rows
SecurityConversion / exercise price (USD)ExercisableExpiresUnderlying securityUnderlying sharesAmount ownedOwnership
Common Stock Right to Buy[F7]31.15[F8]2028-04-01Common Stock55,27955,279D
Common Stock Right to Buy[F7]28.69[F8]2027-04-01Common Stock78,02178,021D
Table key
D
Direct

Footnotes

F1
Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 21, 2025↩ 1
F2
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.99 to $34.27. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction↩ 1
F3
Shares held in Trust↩ 1
F4
Shares held jointly with spouse↩ 1
F5
Represents shares held in the Company's Retirement Savings Plan as of June 30, 2026↩ 1
F6
Held in IRA↩ 1
F7
Granted pursuant to Company's Amended and Restated 2013 Incentive Plan↩ 1↩ 2
F8
Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continuous employment on each vesting date and the Company's banking subsidiary meets certain capital requirements.↩ 1↩ 2

Signature 1

Signed
/s/ Dennis S. Hudson, III
Date
2026-09-17

Company context

Seacoast Banking Corporation of Florida (NASDAQ: SBCF) is one of the largest community banks headquartered in Florida with approximately $15.7 billion in assets and $12.6 billion in deposits as of March 31, 2025. Seacoast provides integrated financial services including commercial and consumer banking, wealth management, mortgage and insurance services to customers at 79 full-service branches across Florida, and through advanced mobile and online banking solutions. Seacoast National Bank is the wholly-owned subsidiary bank of Seacoast Banking Corporation of Florida. For more information about Seacoast, visit www. SeacoastBanking.com.

Current securities

Historical securities (1)

Recent company filings

  1. Results of Operations and Financial Condition · Regulation FD DisclosureOct 27, 2026
  2. 144 filingSep 16, 2026
  3. Regulation FD DisclosureSep 9, 2026
  4. 4 filingAug 28, 2026
  5. 144 filingAug 27, 2026

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