Model
Edge
ION Geophysical Corporation
0000866609
Filing Type
10-K/A
Filing Date
4/29/2021
Updated
4/30/21, 10:11 AM
Filing
10-K/A
Earnings Release
Exhibits
10-K/A
FY 2020 amended
EX-31.3
EXHIBIT 31.3
EX-31.4
EXHIBIT 31.4
GRAPHIC
Graphic
GRAPHIC
Graphic