Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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
OMB APPROVAL
OMB Number: 3235-0362
Expires: January 31, 2005
Estimated average burden hours per response... 1.0

1. Name and Address of Reporting Person *
KOERNER JOHN E III
2. Issuer Name and Ticker or Trading Symbol
IBERIABANK CORP [IBKC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)

200 WEST CONGRESS STREET
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2018
(Street)


LAFAYETTE, LA 70501
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock             7,800 D  
Common Stock             3,500 I By Koerner Capital LLC

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. 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. SEC 2270 (9-02)

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 at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Phantom Stock   01/02/2018 01/02/2018 A4 67.9612 (2)     (3)   (3) Common Stock
67.9612
$ 77.25 67.9612
D
 
Phantom Stock   01/26/2018 01/26/2018 A4 3.6877 (2)     (3)   (3) Common Stock
3.6877
$ 87 3.6877
D
 
Phantom Stock   02/01/2018 02/01/2018 A4 60.9402 (2)     (3)   (3) Common Stock
60.9402
$ 86.15 60.9402
D
 
Phantom Stock   03/01/2018 03/01/2018 A4 65.2985 (2)     (3)   (3) Common Stock
65.2985
$ 80.4 65.2985
D
 
Phantom Stock   04/02/2018 04/02/2018 A4 68.3149 (2)     (3)   (3) Common Stock
68.3149
$ 76.85 68.3149
D
 
Phantom Stock   04/27/2018 04/27/2018 A4 5.3284 (2)     (3)   (3) Common Stock
5.3284
$ 75.95 5.3284
D
 
Phantom Stock   05/01/2018 05/01/2018 A4 69.6749 (2)     (3)   (3) Common Stock
69.6749
$ 75.35 69.6749
D
 
Phantom Stock   06/01/2018 06/01/2018 A4 65.0558 (2)     (3)   (3) Common Stock
65.0558
$ 80.7 65.0558
D
 
Phantom Stock   07/02/2018 07/02/2018 A4 68.5826 (2)     (3)   (3) Common Stock
68.5826
$ 76.55 68.5826
D
 
Phantom Stock   07/27/2018 07/27/2018 A4 5.8054 (2)     (3)   (3) Common Stock
5.8054
$ 83.35 5.8054
D
 
Phantom Stock   08/01/2018 08/01/2018 A4 62.3886 (2)     (3)   (3) Common Stock
62.3886
$ 84.15 62.3886
D
 
Phantom Stock   09/04/2018 09/04/2018 A4 60.6586 (2)     (3)   (3) Common Stock
60.6586
$ 86.55 60.6586
D
 
Phantom Stock   10/01/2018 10/01/2018 A4 65.0961 (2)     (3)   (3) Common Stock
65.0961
$ 80.65 65.0961
D
 
Phantom Stock   10/26/2018 10/26/2018 A4 8.0158 (2)     (3)   (3) Common Stock
8.0158
$ 71.56 8.0158
D
 
Phantom Stock   11/01/2018 11/01/2018 A4 70.1122 (2)     (3)   (3) Common Stock
70.1122
$ 74.88 70.1122
D
 
Phantom Stock   12/03/2018 12/03/2018 A4 70.2341 (2)     (3)   (3) Common Stock
70.2341
$ 74.75 70.2341
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
KOERNER JOHN E III
200 WEST CONGRESS STREET
LAFAYETTE, LA 70501
       

Signatures

JOHN E. KOERNER III 02/11/2019
**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) EACH SHARE OF PHANTOM STOCK REPRESENTS THE RIGHT TO RECEIVE THE CASH VALUE OF ONE SHARE OF IBKC COMMON STOCK.
(2) ACQUISITION OF PHANTOM STOCK PURSUANT TO A NON-QUALIFIED DEFERRED COMPENSATION PLAN.
(3) SHARES OF PHANTOM STOCK ARE PAYABLE IN CASH UPON DISTRIBUTION.

Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.