Ion Geophysical Corp

IOCIK 0000866609 · Every Form 4 filed by insiders at this issuer. See financials →

Annual report (10-K)

Latest 10-K/A filed Apr 30, 2021. Sentiment + YoY language diff vs prior year. Read sections →

Signal:NeutralFull-doc fallback

Full filing:tone -0.0040

Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.

YoY shift: Unscored

Year-over-year tone shift - average net-tone change across Risk Factors and MD&A vs the prior 10-K.

Why YoY instead of absolute: the LM lexicon has ~6.6× more negative words than positive (legal/risk-disclosure language is heavy on hedging), so every 10-K reads bearish on raw tone. Year-over-year change strips that bias and surfaces the actual shift in management's framing.

Per-snippet highlights

Sentence-level sentiment highlighting with category and subcategory filters is coming once the snippet-scoring pipeline lands. For now, dig into the actual section text on the Sections tab.

Top insiders

Most active reporters at Ion Geophysical Corp

Name	Roles	Filings
Seitz John N	Director	1
Usher Christopher Theron	OfficerDirector	1
Williamson Ken	Officer	1
Zhang Shaohua	Director	1

Showing 11-14 of 14

Per pagePrevPage 3 of 3

All filings

15 Form 4 / 4-A filings, newest first

Filed	Insider	Top transaction	Shares	Price	Value
Mar 3, 2022	McGovern Michael Y Director	AGrant	2,500	$0.00	$0
Mar 3, 2022	Nelson S James Director	AGrant	2,500	$0.00	$0
Mar 3, 2022	Pittman Gary L Director	AGrant	2,500	$0.00	$0
Mar 3, 2022	Seitz John N Director	AGrant	2,500	$0.00	$0
Mar 3, 2022	Zhang Shaohua Director	FTax	750	$0.58	$435

Showing 11-15 of 15