Summary
Updated Aug 30, 2026
Nelson Dias is Chief Revenue Officer of Altair Engineering Inc. (ALTR). 1 SEC Form 4 filing on record, dated 11 December 2024. Most recent open-market trade: sold $2.39M of ALTR on 11 December 2024. Lifetime open-market sales: $2.39M.
Recent Transactions
2Every recent SEC Form 4 transaction Nelson Dias has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as Nelson Dias. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- George J. Christ - $24.96M of ALTR open-market activity on record
- Christ Revocable Trust - $15.44M of ALTR open-market activity on record
- GC Investments LLC - $9.52M of ALTR open-market activity on record
- James Ralph Scapa - $5.64M of ALTR open-market activity on record
- JRS Investments LLC - $1.97M of ALTR open-market activity on record
- James R. Scapa Declaration of Trust - $1.97M of ALTR open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Nelson Dias?
Nelson Dias is a corporate insider, tracked as Chief Revenue Officer of Altair Engineering Inc. (ALTR). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Nelson Dias last file a Form 4?
The only primary Form 4 on record is dated 11 December 2024.
Has Nelson Dias been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($2.39M) across all tracked filings.
Where can I see all of Nelson Dias'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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