Dale J. Lambert - Dec 1, 2021 Form 4 Insider Report for ION GEOPHYSICAL CORP (IO)

Role
EVP, E&P Technology & Services
Signature
/s/ Rebecca F. Sacco, attorney-in-fact
Stock symbol
IO
Transactions as of
Dec 1, 2021
Transactions value $
-$10,379
Form type
4
Date filed
12/3/2021, 05:19 PM
Previous filing
May 13, 2021
Next filing
May 13, 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IO Common Stock Tax liability -$10.4K -5.97K -5.83% $1.74* 96.4K Dec 1, 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.