FORM 3
        
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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 *

Rodermund Sheila M
2. Date of Event Requiring Statement (MM/DD/YYYY)
2/8/2021 

3. Issuer Name and Ticker or Trading Symbol

ION GEOPHYSICAL CORP [IO]
(Last)        (First)        (Middle)

2105 CITYWEST BLVD., SUITE 100
4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                          _____ 10% Owner
___X___ Officer (give title below)        _____ Other (specify below)
EVP, Operations Optimization /
(Street)

HOUSTON, TX 77042      

(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 5000 (1)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 Security5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (right to buy) 12/1/2020 (2)12/1/2029 Common Stock 10000 $8.43 D  

Explanation of Responses:
(1) These shares are restricted stock subject to time and performance vesting.
(2) The options became exercisable in four equal annual installments beginning on the date specified in Column 2.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Rodermund Sheila M
2105 CITYWEST BLVD., SUITE 100
HOUSTON, TX 77042


EVP, Operations Optimization

Signatures
/s/ Rebecca F. Sacco, attorney-in-fact3/2/2021
**Signature of Reporting PersonDate

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