SEC ownership of ION GEOPHYSICAL CORP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000866609.

Comparable stake leader

Gates Capital Management, Inc.

Disclosed value leader

Gates Capital Management, Inc.

Comparable rows

0/15

Latest evidence

27 Jul 2022

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
27 Jul 2022
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000866609
Issuer location
Houston, TX

Ownership snapshot

Top shareholders of ION GEOPHYSICAL CORP (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Gates Capital Management,...
Disclosed value leader
Gates Capital Management,...
Comparable rows
0/15
Latest evidence
27 Jul 2022
3/4/5 Highest disclosed value: $6,285,545 15 rows are not safely comparable across share classes. Showing 1-8 of 15 holder rows.

Quick read

Gates Capital Management, Inc. has the largest disclosed position value at $6.29M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Gates Capital Management, Inc.'s linked filing trail.
Disclosed position value Top 5
Gates Capital Management, Inc. $6.29M
James M. Lapeyre Jr. $1.31M
Christopher Theron Usher $262.7K
Ken Williamson $147.4K
Michael L. Morrison $94.5K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-8 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Gates Capital Management, Inc.
3/4/5
10%+ Owner
mixed-class rows
$6,285,545
6,142,846 shares
mixed-class rows
21 Sep 2021
James M. Lapeyre Jr.
3/4/5
Director
class O/S missing
$1,311,881
1,639,850 shares
01 Mar 2022
Christopher Theron Usher
3/4/5
President & CEO, Director
class O/S missing
$262,698
328,372 shares
11 May 2022
Ken Williamson
3/4/5
EVP, Innov & Strat Mktg
class O/S missing
$147,406
184,258 shares
11 May 2022
Michael L. Morrison
3/4/5
EVP & CFO
class O/S missing
$94,466
118,082 shares
11 May 2022
Matthew R. Powers
3/4/5
EVP, Gen Counsel & Corp Secy
class O/S missing
$77,546
96,932 shares
11 May 2022
Dale J. Lambert
3/4/5
EVP, E&P Technology & Services
class O/S missing
$63,132
78,915 shares
08 Jul 2022
Sheila M. Rodermund
3/4/5
EVP, Operations Optimization
class O/S missing
$38,543
48,179 shares
08 Jul 2022
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 03 Jul 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-16 of 16 reporting-owner rows connected to ION GEOPHYSICAL CORP. Open a relationship link for the CIK-to-CIK filing trail.

Rows
16
Largest Forms 3/4/5 holder
Gates Capital Management, Inc.
Net 12M change
$0
Latest report
27 Jul 2022
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Gates Capital Management, Inc. 10%+ Owner $6,285,545 Mixed 21 Sep 2021
James M. Lapeyre Jr. Director $1,311,881 Mixed 01 Mar 2022
Christopher Theron Usher President & CEO, Director $262,698 Mixed 11 May 2022
Ken Williamson EVP, Innov & Strat Mktg $147,406 Mixed 11 May 2022
Michael L. Morrison Evp & Cfo $94,466 Mixed 11 May 2022
Matthew R. Powers EVP, Gen Counsel & Corp Secy $77,546 Mixed 11 May 2022
Dale J. Lambert EVP, E&P Technology & Services $63,132 Mixed 08 Jul 2022
Sheila M. Rodermund EVP, Operations Optimization $38,543 Mixed 08 Jul 2022
John N. Seitz Director $23,007 Mixed 01 Mar 2022
S. James Nelson Director $21,413 Mixed 01 Mar 2022
Scott Schwausch VP, Finance & Corp Controller $19,918 Mixed 27 Jul 2022
Michael Y. Mcgovern Director $7,834 Mixed 01 Mar 2022
Mark J. Doran Director $3,769 Mixed 01 Mar 2022
Gary L. Pittman Director $3,769 Mixed 01 Mar 2022
ShaoHua Zhang Director $3,698 Mixed 01 Mar 2022
Steven Bate Chief Administration Officer Mixed 29 Mar 2022

Recent insider transactions for ION GEOPHYSICAL CORP

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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