NMTC · Insider Trading

NeuroOne Medical Technologies Corporation Common Stock

Every open-market purchase and sale reported by NMTC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
4
code P
Sales
7
code S
Reporting Insiders
10
current holders
NMTC — Recent Form 4 Transactions (latest 2026-09-08)
FiledInsiderRole TypeSharesValue
2026-09-08 David J. Wambeke Chief Business Officer Buy +33,333 +$67.00K
2026-08-28 David A Rosa CEO & President A +68,000 deriv. —
2026-08-28 Christopher Volker Chief Financial Officer A +35,000 deriv. —
2026-08-28 Emily J. Johns Chief Administrative Officer A +12,500 deriv. —
2026-08-28 Mark Christianson Market Development Director A +12,500 deriv. —
2026-08-28 Steve Mertens Chief Technology Officer A +15,000 deriv. —
2026-07-02 Mark Christianson Market Development Director Sell −10,000 −$31.77K
2026-04-07 Jeffrey S Mathiesen Director A +41,929 —
2026-04-07 Edward Andrle Director A +41,929 —
2026-04-07 Jason Richard Mills Director A +41,929 —
2026-04-07 Paul Buckman Director A +41,929 —
2026-04-01 David A Rosa CEO and President F −2,458 −$1.91K
2026-04-01 Mark Christianson Business Development Director MIXED −15,616 −$11.57K
2026-04-01 Steve Mertens Chief Technology Officer F −906 −$704
2026-03-16 Mark Christianson Business Development Director Sell −917 −$734
2026-03-12 Mark Christianson Business Development Director Sell −13,720 −$10.98K
2026-03-03 David J. Wambeke Chief Business Officer Buy +1,000,000 +$670.40K
2026-02-20 Mark Christianson Business Development Director F −1,812 −$1.23K
2026-02-20 David A Rosa CEO and President F −71,325 −$48.50K
2026-02-20 Steve Mertens Chief Technology Officer F −7,376 −$5.02K
2026-01-05 Mark Christianson Business Development Director F −253 −$192
2026-01-05 Steve Mertens Chief Technology Officer F −906 −$687
2026-01-05 David A Rosa CEO and President F +2,458 +$1.86K
2026-01-02 Jason Richard Mills Director A +7,758 —
2025-10-01 David A Rosa CEO and President F −2,458 −$2.18K
2025-10-01 Mark Christianson Business Development Director F −253 −$225
2025-10-01 Steve Mertens Chief Technology Officer F −906 −$805
2025-09-09 Mark Christianson Business Development Director Sell −30,000 −$22.20K
2025-07-02 David A Rosa CEO and President F −2,458 −$1.67K
2025-07-02 Steve Mertens Chief Technology Officer F −906 −$614
2025-07-02 Mark Christianson Business Development Director F −253 −$172
2025-06-25 Jeffrey S Mathiesen Director A +50,000 deriv. —
2025-06-25 Paul Buckman Director A +50,000 deriv. —
2025-06-25 Edward Andrle Director A +50,000 deriv. —
2025-06-05 Mark Christianson Business Development Director Sell −10,000 −$5.80K
2025-06-03 Emily J. Johns General Counsel A +500,000 deriv. —
2025-05-23 Mark Christianson Business Development Director Sell −8,981 −$5.60K
2025-05-21 Mark Christianson Business Development Director Sell −11,019 −$7.31K
2025-04-21 Steve Mertens Chief Technology Officer A +200,000 deriv. —
2025-04-21 David A Rosa CEO and President A +750,000 deriv. —
2025-04-21 Ronald W. McClurg Chief Financial Officer A +250,000 deriv. —
2025-04-21 Christopher Volker Chief Operating Officer A +575,000 deriv. —
2025-04-21 Mark Christianson Business Development Director A +200,000 deriv. —
2025-04-07 Ronald W. McClurg Chief Financial Officer Buy +200,000 +$100.00K
2025-04-07 David A Rosa CEO and President Buy +100,000 +$50.00K
2025-04-02 David A Rosa CEO and President F −2,458 −$2.09K
2025-04-02 Mark Christianson Business Development Director F −253 −$215
2025-04-02 Steve Mertens Chief Technology Officer F −906 −$770
2025-02-20 David A Rosa CEO and President F −71,325 −$82.74K
2025-02-20 Steve Mertens Chief Technology Officer F −7,376 −$8.56K
NMTC — Current Insider Holders
InsiderRole Shares HeldValue
David J. Wambeke Chief Business Officer 199,999 $160.78K
David A Rosa CEO & President 180,022 $144.72K
Ronald W. McClurg Chief Financial Officer 74,020 $59.50K
Paul Buckman Director 29,789 $23.95K
Jeffrey S Mathiesen Director 26,057 $20.95K
Steve Mertens Chief Technology Officer 25,357 $20.38K
Edward Andrle Director 22,322 $17.94K
Mark Christianson Market Development Director 20,692 $16.63K
Christopher Volker Chief Financial Officer 12,500 $10.05K
Jason Richard Mills Director 8,281 $6.66K
NMTC Insider Trading FAQ
Who are the insiders at NMTC?
10 officers, directors and 10%+ beneficial owners currently report holdings in NMTC via SEC Form 4.
Are NMTC insiders buying or selling?
Across the 50 most recent Form 4 filings for NMTC, 4 were open-market purchases (code P) and 7 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is NMTC insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent NMTC filing is dated 2026-09-08.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the NMTC quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.