Filing Details

Accession Number:
Form Type:
Zero Holdings:
Publication Time:
2017-12-19 18:15:21
Reporting Period:
Accepted Time:
2017-12-19 18:15:21
SEC Url:
Form 4 Filing
Cik Name Symbol Sector (SIC) IRS No
866609 Ion Geophysical Corp IO Oil & Gas Field Exploration Services (1382) 222286646
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1481492 Theron Christopher Usher 2105 Citywest Boulevard
Suite 100
Houston TX 77042-2855
Evp & Coo, E&p Oper Optimizat No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2017-12-15 100,000 $3.10 137,367 No 4 M Direct
Common Stock Disposition 2017-12-15 100,000 $13.05 37,367 No 4 D Direct
Common Stock Acquisiton 2017-12-15 14,850 $13.50 52,217 No 4 P Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 D Direct
No 4 P Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Stock Appreciation Right Disposition 2017-12-15 100,000 $0.00 100,000 $3.10
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
50,000 2017-03-01 2026-03-01 No 4 M Direct
  1. Exercise of cash-settled SARs. In accordance with the rules for filing Form 4, the exercise of cash-settled SARs is treated as the simultaneous purchase of the number of shares for which SARs are exercised and the sale of the same number of shares. No shares actually changed hands.
  2. Compensation Committee approved acceleration of the vesting of the second tranche on 12/13/2017. Final tranche to vest as scheduled on 03/01/2019.