Insiders who reported open-market trades in the last 12 months at the companies Mark Christianson 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.
David J. Wambeke - $737K in NMTC purchases and sales in the last 12 months
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Mark Christianson is a corporate insider, tracked as Market Development Director of NEUROONE MEDICAL TECHNOLOGIES Corp (NMTC). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Mark Christianson submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Mark Christianson been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($77K) across all tracked filings.
Mark Christianson is Market Development Director of NEUROONE MEDICAL TECHNOLOGIES Corp (NMTC). 12 SEC Form 4 filings on record going back to 2024, most recently on 28 August 2026. Most recent open-market trade: sold $32K of NMTC on 2 July 2026. Lifetime open-market sales: $77K.
Recent transactions
14
The latest 14 SEC Form 4 transactions reported by Mark Christianson.
InsiderAlpha's records for Mark Christianson go back to 2024: 12 primary Form 4 filings, an average of 4.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
