Summary
Updated Aug 30, 2026
Halfdan Marius Foss is Chief Executive Officer of Flex LNG Ltd. (FLNG). 2 SEC Form 4 filings on record, most recently on 21 August 2026.
Trading Pattern
InsiderAlpha's records for Halfdan Marius Foss go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. 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.
Most Active Insiders Right Now
Halfdan Marius Foss has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- John Kristofer Galashan - $410.21M of LTH open-market activity in the last 90 days
- Mark A. Stevens - $407.10M of NVDA open-market activity in the last 90 days
- Frank Slootman - $405.01M of SNOW open-market activity in the last 90 days
- Xuning Wang - $401.19M of SN open-market activity in the last 90 days
- Fairmount Funds Management LLC - $399.66M of SYRE open-market activity in the last 90 days
- Andreas Bechtolsheim - $393.27M of ANET open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Halfdan Marius Foss?
Halfdan Marius Foss is a corporate insider, tracked as Chief Executive Officer of Flex LNG Ltd. (FLNG). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Halfdan Marius Foss submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Where can I see all of Halfdan Marius Foss'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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