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 * SEELY JAMEY S 2. Issuer Name and Ticker or Trading Symbol ION GEOPHYSICAL CORP [IO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP-Gen Counsel & Corp Sec'y (Last) (First) (Middle) 2105 CITYWEST BLVD., SUITE 400 3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year) 12/31/2015 (Street) HOUSTON, TX 77042 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 11/17/2015   P4 811 (1) A $ 4.8907 (2) 11,074 D   Common Stock 11/19/2015   P4 1,020 (3) A $ 6.81 (4) 12,094 (5) D Â

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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SEELY JAMEY S 2105 CITYWEST BLVD. SUITE 400 HOUSTON, TX 77042	Â	Â	  EVP-Gen Counsel & Corp Sec'y	Â

Signatures

Rebecca F. Sacco, attorney-in-fact		02/12/2016
**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)	To report shares omitted from original Form 4 filed on 11/19/2015; as adjusted for the one-for-fifteen reverse stock split effective on 02/05/2016.
(2)	This transaction was executed in multiple trades at prices ranging from $4.884 to $4.8945, inclusive; as adjusted for the one-for-fifteen reverse split effective on 02/05/2016. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
(3)	To report shares omitted from original Form 4 filed on 11/20/2015, as adjusted for the one-for-fifteen reverse stock split effective on 02/05/2016.
(4)	As adjusted for the one-for-fifteen reverse stock split effective on 02/05/2016.
(5)	Effective as of February 5, 2016, ION's common stock was reduced on a one-for-fifteen basis pursuant to the issuer's reverse stock split. Accordingly, all shares reported in this report reflect the effect of the one-for-fifteen reverse stock split.

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.