FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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 *   Kleffel Juliette 2. Date of Event Requiring Statement (Month/Day/Year) 12/12/2017 3. Issuer Name and Ticker or Trading Symbol SEACOAST BANKING CORP OF FLORIDA [SBCF] (Last) (First) (Middle) PO BOX 9012 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) EVP of Subsidiary 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) STUART, FL 34995 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 8,726 D   Common Stock 1,250 D (1)   Common Stock 995 D (2)   Common Stock 2,482 D (3) Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Common Stock Right to Buy (4)	  (5)	04/03/2027	Common Stock	18,078	$ 23.91	D	Â
Common Stock Right to Buy (4)	  (6)	02/28/2024	Common Stock	5,253	$ 14.82	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Kleffel Juliette PO BOX 9012 STUART, FL 34995	Â	Â	Â	EVP of Subsidiary

Signatures

/s/ Dennis S. Hudson, III as Power of Attorney for Juliette Kleffel		12/29/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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 an unvested time-based restricted stock award granted on October 1, 2016, which shall vest over 3 years in one-third increments, beginning on October 1, 2017 and on each anniversary thereafter, subject to continued employment.
(2)	Represents an unvested time-based restricted stock award granted on 4/1/2017 under Seacoast's 2013 Long-Term Incentive Plan, which shall vest 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 continue employment.
(3)	Represents restricted stock units ("RSUs") granted on April 3, 2017, that were subject to performance requirements which were attained over a period ending Dec. 31, 2016. One-third of the shares vest on each of April 3, 2018, 2019 and 2020, provided the recipient remains in continuous service with the Company on each such vesting date.
(4)	Granted pursuant to Seacoast Banking Corporation of Florida's 2013 Incentive Plan
(5)	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.
(6)	Two tiered vesting. First, performance vesting must be met which requires that: 1) the market price of Seacoast common stock increase to 120% or more of the exercise price; and 2) Seacoast's Tier 1 Capital must be equal to or greater than the regulatory standard. Once performance criteria is met, option shall vest 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.

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