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

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All filings

15 Form 4 / 4-A filings, newest first

Filed	Insider	Top transaction	Shares	Price	Value
May 13, 2022	Powers Matthew R EVP, Gen Counsel & Corp Secy	FTax	4,992	$0.37	$1,847
May 13, 2022	Morrison Michael L EVP & CFO	FTax	6,548	$0.37	$2,423
May 13, 2022	Usher Christopher Theron President & CEO · Director	FTax	13,377	$0.37	$4,949
May 13, 2022	Williamson Ken EVP, Innov & Strat Mktg	FTax	6,631	$0.37	$2,453
May 13, 2022	Schwausch Scott VP, Finance & Corp Controller	FTax	1,977	$0.37	$731

Showing 1-5 of 15

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Real-time Form 4 intelligence. Smarter insider tracking.

Filed		Top transaction	Shares	Price	Value