Insider Ledger

NMTC insider buying and SEC filings, explained

Neuroone Medical Technologies Corp. · CIK 1500198

Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov

Company profile

Exchanges
Nasdaq
Industry (SIC)
Surgical & Medical Instruments & Apparatus
State of incorporation
DE
Fiscal year end
Sep 30
Former names
Original Source Entertainment, Inc.

Insider activity in the last 12 months

Bought
$737K
Insiders who bought
1
Sold (not marked 10b5-1)
$55K
Planned sales (10b5-1)
$0

Insider purchases and sales, last 12 months

TradedTypeWhat was filedSource
Aug 27, 2026Purchase (code P)David J. Wambeke (Chief Business Officer) bought 33,333 shares at about $2.01 ($67K), reported as a purchase (code P). Holdings up 20% to 199,999 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Sep 8, 2026
Jun 30, 2026SaleMark Christianson (Market Development Director) sold 10,000 shares at $3.18 ($32K). Holdings down 33% to 20,692 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Jul 2, 2026
Mar 30, 2026SaleMark Christianson (Business Development Director) sold 15,363 shares at $0.7400 ($11K). Holdings down 7% to 198,920 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Apr 1, 2026
Mar 12–13, 2026SaleMark Christianson (Business Development Director) sold 917 shares between Mar 12 and Mar 13 at $0.8000 ($734). Holdings down <1% to 214,283 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Mar 16, 2026
Mar 10–11, 2026SaleMark Christianson (Business Development Director) sold 13,720 shares between Mar 10 and Mar 11 at about $0.8000 ($11K). Holdings down 6% to 215,200 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Mar 12, 2026
Mar 1, 2026Purchase (code P)David J. Wambeke (Chief Business Officer) bought 1,000,000 shares at $0.6700 ($670K), reported as a purchase (code P). New position of 1,000,000 shares. Not marked as a 10b5-1 plan trade.SEC filing
Filed Mar 3, 2026

21 routine transactions (such as grants, option exercises or tax withholding) are not listed.

Cluster buys

No cluster buys in the last 12 months.

Red flags

No red flags in the last 12 months.

Key events

No key events in the last 12 months.

8-K filings, last 12 months

No 8-K filings in the last 12 months.

Red flags are objective triggers only: the item or form filed, never an opinion.

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