Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
HUDSON DENNIS S III
   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
__X__ Officer (give title below) _____ Other (specify below)
Chairman & CEO
(Last)
(First)
(Middle)
SEACOAST BANKING CORP. OF FLORIDA, P.O. BOX 9012		 3. Date of Earliest Transaction (Month/Day/Year)
02/22/2019
(Street)

STUART, FL 34995		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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 02/22/2019   A(1)   45,958 A $ 0 (1) 81,797 D  
Common Stock 02/22/2019   F   18,169 D $ 29.44 63,628 D  
Common Stock               21,915 D (2)  
Common Stock               30,485.0853 D (3)  
Common Stock               49,386 D (4)  
Common Stock               224,356 I Held by Sherwood Partners, Ltd, family partnership
Common Stock               280 I Held by Spouse as Custodian for son
Common Stock               20 I Held by son

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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 Underlying Securities
(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 of Derivative Security: 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 (5) $ 31.15               (6) 04/02/2028 Common Stock 55,279   55,279 D  
Common Stock Right to Buy (5) $ 28.69               (6) 04/03/2027 Common Stock 78,021   78,021 D  
Common Stock Right to Buy (5) $ 14.82               (7) 02/28/2024 Common Stock 51,956   51,956 D  
Common Stock Right to Buy (5) $ 12.63               (8) 01/28/2023 Common Stock 17,975   17,975 D  
Common Stock Right to Buy (5) $ 10.54             04/29/2015(9) 04/29/2024 Common Stock 50,000   50,000 D  
Common Stock Right to Buy (5) $ 11             06/28/2014(10) 06/27/2023 Common Stock 19,400   19,400 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HUDSON DENNIS S III
SEACOAST BANKING CORP. OF FLORIDA
P.O. BOX 9012
STUART, FL 34995		   X     Chairman & CEO  

Signatures

 /s/ Dennis S. Hudson, III   02/26/2019
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Represents shares subject to performance-based restricted stock units ("PSUs") granted on January 29, 2015 that were subject to performance requirements which were attained over a period ending December 31, 2018. On February 22, 2019, the Company's Compensation and Governance Committee certified the number of shares attained based on the performance criteria at which time the shares became fully vested.
(2) Shares held in Trust
(3) Represents shares held in the Company's Retirement Savings Plan as of December 31, 2018.
(4) Shares held jointly with spouse
(5) Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan
(6) 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.
(7) Originally had two tiered vesting. The performance criteria was met and the time-based vesting began on 12/1/2016. Option vests in equal installments at the end of each month over the next 48 months, provided that Optionee remains in continuous service on each applicable vesting date.
(8) Originally had two tiered vesting. Performance criteria was met and time-based vesting began on 7/1/15. Option vests in equal installments at the end of each month over the next 48 months, provided that Optionee remains in continuous service on each applicable vesting date.
(9) 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 continued employment.
(10) Vests over 5 years at the rate of 20% on the first anniversary of the date of grant (the date indicated) and then at the rate of 20% on each of the following four anniversaries thereafter, subject to continue employment.

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