Summary
Updated Aug 30, 2026
Heerema International Group Services SA is 10% Owner of CADIZ INC (CDZI). 1 SEC Form 4 filing on record, dated 6 November 2024. Most recent open-market trade: bought $6.91M of CDZI on 6 November 2024. Lifetime open-market purchases: $6.91M.
Recent Transactions
1Every recent SEC Form 4 transaction Heerema International Group Services SA has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Heerema International Group Services SA go back to 2024: 1 primary Form 4 filing, an average of 0.3 per year. The typical open-market purchase is $6.91M (1 buy totaling $6.91M). The largest single buy on record is $6.91M of CDZI in 2024. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Heerema International Group Services SA files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- David Mark O'Hara - $508K of CDZI open-market activity in the last 12 months
- Cathryn Rivera - $11K of CDZI open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is Heerema International Group Services SA?
Heerema International Group Services SA is a corporate entity, tracked as 10% Owner of CADIZ INC (CDZI). InsiderAlpha holds 1 primary Form 4 filing for it, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Heerema International Group Services SA last file a Form 4?
The only primary Form 4 on record is dated 6 November 2024.
Has Heerema International Group Services SA been buying or selling stock?
Recorded transactions: 1 open-market purchase ($6.91M) and 0 open-market sales across all tracked filings.
Where can I see all of Heerema International Group Services SA's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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