Summary
Updated Aug 30, 2026
Joseph D. Samberg is 10% Owner of NEXTNAV INC. (NN). 2 SEC Form 4 filings on record, most recently on 24 November 2025. Most recent open-market trade: bought $693K of NN on 24 November 2025. Lifetime open-market purchases: $693K. Lifetime open-market sales: $7.42M.
Recent Transactions
3Every recent SEC Form 4 transaction Joseph D. Samberg has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Joseph D. Samberg 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.
- Mariam Sorond - $5.01M of NN open-market activity in the last 12 months
- Susan Brasse Insley - $420K of NN open-market activity in the last 12 months
- Sammaad Shams - $256K of NN open-market activity in the last 12 months
- James S. Black - $213K of NN open-market activity in the last 12 months
- Christian D. Gates - $109K of NN open-market activity in the last 12 months
- Timothy Gray - $25K of NN 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 Joseph D. Samberg?
Joseph D. Samberg is a corporate insider, tracked as 10% Owner of NEXTNAV INC. (NN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Joseph D. Samberg last file a Form 4?
The most recent primary Form 4 on record is dated 24 November 2025, one of 2 filings going back to 2025.
Has Joseph D. Samberg been buying or selling stock?
Recorded transactions: 1 open-market purchase ($693K) and 3 open-market sales ($7.42M) across all tracked filings.
Where can I see all of Joseph D. Samberg'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.
Learn More
Follow Joseph D. Samberg and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
