Summary
Updated Aug 31, 2026
Stephen M. Spinelli is Senior Vice President of Sales of NAPCO SECURITY TECHNOLOGIES, INC (NSSC). 2 SEC Form 4 filings on record going back to 2025, most recently on 19 March 2026. Most recent open-market trade: sold $765K of NSSC on 18 November 2025. Lifetime open-market sales: $765K.
Recent Transactions
3Every recent SEC Form 4 transaction Stephen M. Spinelli has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Stephen M. Spinelli go back to 2025: 2 primary Form 4 filings, an average of 1.0 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Stephen M. Spinelli 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.
- Richard Soloway - $31.16M of NSSC open-market activity in the last 12 months
- Donna Anne Soloway - $1.73M of NSSC 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 M. Spinelli?
Stephen M. Spinelli is a corporate insider, tracked as Senior Vice President of Sales of NAPCO SECURITY TECHNOLOGIES, INC (NSSC). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Stephen M. Spinelli last file a Form 4?
The most recent primary Form 4 on record is dated 19 March 2026, one of 2 filings going back to 2025.
Has Stephen M. Spinelli been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($765K) across all tracked filings.
Where can I see all of Stephen M. Spinelli'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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