Christopher Theron Usher - 01 Sep 2021 Form 4 Insider Report for ION GEOPHYSICAL CORP

Signature
/s/ Rebecca F. Sacco, attorney-in-fact
Issuer symbol
N/A
Transactions as of
01 Sep 2021
Net transactions value
-$22,349
Form type
4
Filing time
03 Sep 2021, 17:37:40 UTC
Previous filing
13 May 2021
Next filing
03 Dec 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IO Common Stock Tax liability $22,349 -17,325 -4.7% $1.29* 350,388 01 Sep 2021 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These shares were not sold, but were withheld by ION Geophysical Corporation upon the vesting of restricted stock shares to satisfy tax withholding obligations.