Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

THOMPSON MARK WILSON

2. Date of Event Requiring Statement (MM/DD/YYYY) 10/6/2017

3. Issuer Name and Ticker or Trading Symbol

CenterState Bank Corp [CSFL]

(Last) (First) (Middle)

1101 FIRST STREET SOUTH, SUITE 202

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
_____ Officer (give title below) ___ X ___ Other (specify below)
/ BANK PRESIDENT

(Street)

WINTER HAVEN, FL 33880

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

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	16644	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		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)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Qualified Incentive Stock Option	⁽¹⁾	2/5/2018	Common Stock	3000	$15.16	D
Qualified Incentive Stock Option	⁽²⁾	6/8/2022	Common Stock	5000	$6.78	D
Restricted Stock Grants	⁽³⁾	6/8/2022	Common Stock	2500	$6.78	D
Restricted Stock Grants	⁽⁴⁾	7/18/2018	Common Stock	1000	$10.22	D
Restricted Stock Grants	⁽⁵⁾	1/1/2018	Common Stock	1685	$14.21	D
Restricted Stock Grants	⁽⁶⁾	1/1/2019	Common Stock	1264	$24.42	D
Restricted Stock Units	⁽⁷⁾	1/1/2020	Common Stock	1237	$18.00	D

Explanation of Responses:
(1)	Options issued on 2/5/08 pursuant to Incentive Stock Option Plan and fully exercisable. Options expire on 2/5/18.
(2)	Five thousand options issued on 6/8/12 pursuant to Incentive Stock Option Plan. Exercisable at a rate of 10% per year for eight years and the remaining 20% after the ninth year. Ten year term.
(3)	Pursuant to the restricted stock agreement, common shares will vest at a rate of 500 shares every June 8th during the years 2018 through 2022.
(4)	Pursuant to the restricted stock agreement, common shares will vest on 7/18/18.
(5)	Restricted stock grant issued pursuant to 2013 Equity Incentive Plan. Vesting date is 1/1/18, subject to certain contingencies.
(6)	Restricted stock grant issued pursuant to 2013 Equity Incentive Plan. Vesting date is 1/1/19, subject to certain contingencies.
(7)	Number of time vested Restricted Share Units ("RSU") awarded on 9/12/16. The awards will vest at a rate of one third on each January 1st, 2018, 2019 and 2020. There is a two year holding period after each vested date. The units are exchangeable with the company's common stock at the exchange rate of 1 for 1 after the vesting date and holding period.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
THOMPSON MARK WILSON 1101 FIRST STREET SOUTH, SUITE 202 WINTER HAVEN, FL 33880				BANK PRESIDENT

Signatures
Jennifer L. Idell, CFO, pursuant to power of attorney		10/6/2017
^** 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 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).
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 control number.