Summary
Updated Aug 31, 2026
Stephen J. Altemus is Chief Executive Officer, Director of Intuitive Machines, Inc. (LUNR). 9 SEC Form 4 filings on record going back to 2024, most recently on 16 April 2026. Most recent open-market trade: sold $325K of LUNR on 16 April 2026. Lifetime open-market sales: $54.51M.
Recent Transactions
20Every recent SEC Form 4 transaction Stephen J. Altemus has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Stephen J. Altemus go back to 2024: 9 primary Form 4 filings, an average of 3.0 per year. 38 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Stephen J. Altemus 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.
- ADVENT INTERNATIONAL, L.P. - $147.60M of LUNR open-market activity in the last 12 months
- Kamal Seyed Ghaffarian - $42.27M of LUNR open-market activity in the last 12 months
- Timothy Price Crain II - $15.87M of LUNR open-market activity in the last 12 months
- Michael Blitzer - $2.19M of LUNR open-market activity in the last 12 months
- Peter McGrath - $1.03M of LUNR open-market activity in the last 12 months
- William John Liquori Jr. - $547K of LUNR 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
Who is Stephen J. Altemus?
Stephen J. Altemus is a corporate insider, tracked as Chief Executive Officer, Director of Intuitive Machines, Inc. (LUNR). InsiderAlpha holds 9 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Stephen J. Altemus last file a Form 4?
The most recent primary Form 4 on record is dated 16 April 2026, one of 9 filings going back to 2024.
Has Stephen J. Altemus been buying or selling stock?
Recorded transactions: 0 open-market purchases and 13 open-market sales ($54.51M) across all tracked filings.
Where can I see all of Stephen J. Altemus'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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