Summary
Updated Aug 31, 2026
Necip Sayiner files SEC Form 4 reports at AXCELIS TECHNOLOGIES INC (ACLS). 13 SEC Form 4 filings on record going back to 2025, most recently on 4 June 2026. Most recent open-market trade: sold $250K of ACLS on 4 June 2026. Lifetime open-market sales: $4.69M.
Recent Transactions
13Every recent SEC Form 4 transaction Necip Sayiner has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Necip Sayiner go back to 2025: 13 primary Form 4 filings, an average of 6.5 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Necip Sayiner 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.
- Xianzhi Sean Fan - $5.75M of RMBS open-market activity in the last 12 months
- Luc Seraphin - $4.41M of RMBS open-market activity in the last 12 months
- Emiko Higashi - $2.39M of RMBS open-market activity in the last 12 months
- Desmond Lynch - $2.19M of RMBS open-market activity in the last 12 months
- Meera Rao - $1.74M of RMBS open-market activity in the last 12 months
- Eric B. Stang - $1.69M of RMBS 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 Necip Sayiner?
Necip Sayiner is a corporate insider of AXCELIS TECHNOLOGIES INC (ACLS). InsiderAlpha holds 13 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Necip Sayiner submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Necip Sayiner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($4.69M) across all tracked filings.
Where can I see all of Necip Sayiner'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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