NMTCNasdaqSurgical & Medical Instruments & ApparatusFiscal year ends September 30
NEUROONE MEDICAL TECHNOLOGIES Corp
Financials through Q3 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$1.00+0.04 (+4.01%)
Close on Oct 19, 2026
- Market cap
- $8.74M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
22.7%
2M of 9M shares
Institutional holders
25
24 new, 0 sold out
Net institutional buying
2M
In Q2 2026
Insider trades, 12 months
2 buys · 6 sales
Net bought $682.12K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Merchant Adventure Fund, L.P. | 4,200,000 | 13.60% | 13G (passive) amendment | Dec 31, 2024 |
| Bleichroeder Holdings LLC | 4,000,000 | 8.03% | 13G (passive) | Jun 30, 2025 |
| Brian Pratt | 1,085,934 | 12.50% | 13G (passive) amendment | Jul 10, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of NMTC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Bleichroeder LP | 666,666 | 7.32% | $2.03M | New | 0.36% |
| Vanguard Capital Management LLC | 352,774 | 3.87% | $1.07M | New | 0.00% |
| Bard Associates Inc | 305,428 | 3.35% | $928.50K | New | 0.21% |
| Perkins Capital Management Inc | 244,656 | 2.69% | $743.75K | New | 0.56% |
| Geode Capital Management, LLC | 93,555 | 1.03% | $284.45K | New | 0.00% |
| Sio Capital Management, LLC | 82,767 | 0.91% | $251.61K | New | 0.04% |
| Renaissance Technologies LLC | 70,861 | 0.78% | $215.42K | New | 0.00% |
| Cambridge Investment Research Advisors, Inc. | 56,998 | 0.63% | $174 | New | 0.00% |
| Vanguard Fiduciary Trust Co | 49,018 | 0.54% | $149.02K | New | 0.00% |
| Essex Investment Management Co LLC | 43,578 | 0.48% | $132.48K | New | 0.02% |
| BlackRock, Inc. | 25,121 | 0.28% | $76.37K | New | 0.00% |
| Northern Trust Corp | 21,398 | 0.23% | $65.05K | New | 0.00% |
| Citadel Advisors LLC | 15,032 | 0.17% | $45.70K | New | 0.00% |
| Susquehanna International Group, Llp | 13,520 | 0.15% | $41.10K | New | 0.00% |
| Belpointe Asset Management LLC | 12,500 | 0.14% | $38.00K | New | 0.00% |
| Legato Capital Management LLC | 10,273 | 0.11% | $31.23K | New | 0.00% |
| UBS Group AG | 2,623 | 0.03% | $7.97K | New | 0.00% |
| Morgan Stanley | 2,058 | 0.02% | $6.26K | New | 0.00% |
| Northwestern Mutual Wealth Management Co | 361 | 0.00% | $1.10K | New | 0.00% |
| Wells Fargo & Company/Mn | 166 | 0.00% | $505 | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 25 | 2M | 22.7% | 24 / 0 | 1 / 0 | 2M | 0M |
| Q1 2026 | 1 | 0M | 0.0% | 1 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of NMTC | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 254,938 | 2.80% | $775.01K | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 90,120 | 0.99% | $273.96K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 49,310 | 0.54% | $175.05K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 23,642 | 0.26% | $71.87K | 0.00% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 13,914 | 0.15% | $49.39K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 11,879 | 0.13% | $42.17K | 0.00% | May 31, 2026 |
| Vanguard Balanced Index Fund | 7,716 | 0.08% | $23.46K | 0.00% | Jun 30, 2026 |
| Fidelity Nasdaq Composite Index Fund | 4,972 | 0.05% | $17.65K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 1,479 | 0.02% | $4.50K | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| David A. Rosa | CEO & President, Director | 1,080,132 | 11.86% | Aug 28, 2026 |
| David J. Wambeke | Chief Business Officer | 199,999 | 2.20% | Sep 8, 2026 |
| Steve Mertens | Chief Technology Officer | 152,141 | 1.67% | Aug 28, 2026 |
| Christopher Volker | Chief Financial Officer | 75,000 | 0.82% | Aug 28, 2026 |
| Emily J. Johns | Chief Administrative Officer | – | – | Aug 28, 2026 |
| Mark Christianson | Market Development Director | 20,692 | 0.23% | Aug 28, 2026 |
| Ronald W. McClurg | Chief Financial Officer | 444,117 | 4.88% | Apr 21, 2025 |
| Jason Richard Mills | Director | 49,687 | 0.55% | Apr 7, 2026 |
| Paul Buckman | Director | 178,733 | 1.96% | Apr 7, 2026 |
| Jeffrey S. Mathiesen | Director | 156,343 | 1.72% | Apr 7, 2026 |
| Edward Andrle | Director | 133,932 | 1.47% | Apr 7, 2026 |
| Brian Pratt | 10% owner | 1,085,934 | 11.93% | Jul 14, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| David J. Wambeke Chief Business Officer | Aug 27, 2026 | Buy | +33,333 | $2.01 | $67.00K | 199,999 |
| Mark Christianson Market Development Director | Jun 30, 2026 | Sale | −10,000 | $3.18 | $31.80K | 20,692 |
| Edward Andrle Director | Apr 3, 2026 | Award | +41,929 | – | – | 133,932 |
| Paul Buckman Director | Apr 3, 2026 | Award | +41,929 | – | – | 178,733 |
| Jason Richard Mills Director | Apr 3, 2026 | Award | +41,929 | – | – | 49,687 |
| Jeffrey S. Mathiesen Director | Apr 3, 2026 | Award | +41,929 | – | – | 156,343 |
| Steve Mertens Chief Technology Officer | Mar 31, 2026 | Tax withholding | −906 | $0.78 | $707 | 152,141 |
| David A. Rosa CEO and President, Director | Mar 31, 2026 | Tax withholding | −2,458 | $0.78 | $1.92K | 1,080,132 |
| Mark Christianson Business Development Director | Mar 31, 2026 | Tax withholding | −253 | $0.78 | $197 | 198,667 |
| Mark Christianson Business Development Director | Mar 30, 2026 | Sale | −15,363 | $0.74 | $11.37K | 198,920 |
| Mark Christianson Business Development Director | Mar 13, 2026 | Sale | −100 | $0.80 | $80 | 214,283 |
| Mark Christianson Business Development Director | Mar 12, 2026 | Sale | −817 | $0.80 | $654 | 214,383 |
| Mark Christianson Business Development Director | Mar 11, 2026 | Sale | −2,109 | $0.80 | $1.69K | 215,200 |
| Mark Christianson Business Development Director | Mar 10, 2026 | Sale | −11,611 | $0.80 | $9.29K | 217,309 |
| David J. Wambeke Chief Business Officer | Mar 1, 2026 | Buy | +1,000,000 | $0.67 | $670.00K | 1,000,000 |
| David A. Rosa CEO and President, Director | Feb 18, 2026 | Tax withholding | −71,325 | $0.68 | $48.50K | 1,082,590 |
| Steve Mertens Chief Technology Officer | Feb 18, 2026 | Tax withholding | −7,376 | $0.68 | $5.02K | 153,047 |
| Mark Christianson Business Development Director | Feb 18, 2026 | Tax withholding | −1,812 | $0.68 | $1.23K | 228,920 |
| David A. Rosa CEO and President, Director | Dec 31, 2025 | Tax withholding | +2,458 | $0.76 | $1.87K | 1,153,915 |
| Steve Mertens Chief Technology Officer | Dec 31, 2025 | Tax withholding | −906 | $0.76 | $689 | 160,423 |
| Mark Christianson Business Development Director | Dec 31, 2025 | Tax withholding | −253 | $0.76 | $192 | 230,732 |
| Jason Richard Mills Director | Dec 18, 2025 | Award | +7,758 | – | – | 7,758 |
| David A. Rosa CEO and President, Director | Sep 30, 2025 | Tax withholding | −2,458 | $0.89 | $2.19K | 1,156,373 |
| Steve Mertens Chief Technology Officer | Sep 30, 2025 | Tax withholding | −906 | $0.89 | $806 | 161,329 |
| Mark Christianson Business Development Director | Sep 30, 2025 | Tax withholding | −253 | $0.89 | $225 | 230,985 |
| Mark Christianson Business Development Director | Sep 5, 2025 | Sale | −30,000 | $0.74 | $22.20K | 231,238 |
| Mark Christianson Business Development Director | Jun 30, 2025 | Tax withholding | −253 | $0.68 | $172 | 261,238 |
| David A. Rosa CEO and President, Director | Jun 30, 2025 | Tax withholding | −2,458 | $0.68 | $1.67K | 1,158,831 |
| Steve Mertens Chief Technology Officer | Jun 30, 2025 | Tax withholding | −906 | $0.68 | $616 | 162,235 |
| Mark Christianson Business Development Director | Jun 4, 2025 | Sale | −10,000 | $0.58 | $5.80K | 261,491 |
| Mark Christianson Business Development Director | May 22, 2025 | Sale | −8,967 | $0.62 | $5.56K | 271,491 |
| Mark Christianson Business Development Director | May 21, 2025 | Sale | −14 | $0.65 | $9 | 280,458 |
| Mark Christianson Business Development Director | May 20, 2025 | Sale | −3,013 | $0.66 | $1.99K | 280,472 |
| Mark Christianson Business Development Director | May 19, 2025 | Sale | −8,006 | $0.67 | $5.36K | 283,485 |
| David A. Rosa CEO and President, Director | Apr 4, 2025 | Buy | +100,000 | $0.50 | $50.00K | 1,161,289 |
| Ronald W. McClurg Chief Financial Officer | Apr 4, 2025 | Buy | +200,000 | $0.50 | $100.00K | 444,117 |
| Steve Mertens Chief Technology Officer | Mar 31, 2025 | Tax withholding | −906 | $0.85 | $770 | 163,141 |
| Mark Christianson Business Development Director | Mar 31, 2025 | Tax withholding | −253 | $0.85 | $215 | 291,491 |
| David A. Rosa CEO and President, Director | Mar 31, 2025 | Tax withholding | −2,458 | $0.85 | $2.09K | 1,061,289 |
| David A. Rosa CEO and President, Director | Feb 18, 2025 | Tax withholding | −71,325 | $1.16 | $82.74K | 1,063,747 |
| Steve Mertens Chief Technology Officer | Feb 18, 2025 | Tax withholding | −7,376 | $1.16 | $8.56K | 164,047 |
| Mark Christianson Business Development Director | Feb 18, 2025 | Tax withholding | −1,812 | $1.16 | $2.10K | 291,744 |
| Jeffrey S. Mathiesen Director | Feb 14, 2025 | Award | +27,778 | – | – | 114,414 |
| Paul Buckman Director | Feb 14, 2025 | Award | +27,778 | – | – | 136,804 |
| Edward Andrle Director | Feb 14, 2025 | Award | +27,778 | – | – | 92,003 |
| David A. Rosa CEO and President, Director | Jan 31, 2025 | Tax withholding | −2,239 | $1.15 | $2.57K | 1,135,072 |
| Mark Christianson Business Development Director | Jan 31, 2025 | Tax withholding | −90 | $1.15 | $103 | 293,556 |
| Steve Mertens Chief Technology Officer | Jan 31, 2025 | Tax withholding | −252 | $1.15 | $290 | 171,423 |
| Mark Christianson Business Development Director | Dec 31, 2024 | Tax withholding | −343 | $0.83 | $285 | 293,646 |
| Steve Mertens Chief Technology Officer | Dec 31, 2024 | Tax withholding | −1,158 | $0.83 | $961 | 171,675 |
| David A. Rosa CEO and President, Director | Dec 31, 2024 | Tax withholding | −4,697 | $0.83 | $3.90K | 1,137,311 |
| Mark Christianson Business Development Director | Nov 30, 2024 | Tax withholding | −90 | $0.62 | $56 | 293,989 |
| David A. Rosa CEO and President, Director | Nov 30, 2024 | Tax withholding | −2,239 | $0.62 | $1.39K | 1,142,008 |
| Steve Mertens Chief Technology Officer | Nov 30, 2024 | Tax withholding | −252 | $0.62 | $156 | 172,833 |
| David A. Rosa CEO and President, Director | Oct 31, 2024 | Tax withholding | −2,239 | $0.97 | $2.17K | 1,144,247 |
| Mark Christianson Business Development Director | Oct 31, 2024 | Tax withholding | −90 | $0.97 | $87 | 294,079 |
| Steve Mertens Chief Technology Officer | Oct 31, 2024 | Tax withholding | −252 | $0.97 | $244 | 173,085 |
| Steve Mertens Chief Technology Officer | Sep 30, 2024 | Tax withholding | −1,158 | $0.99 | $1.15K | 173,337 |
| Mark Christianson Business Development Director | Sep 30, 2024 | Tax withholding | −343 | $0.99 | $340 | 294,169 |
| David A. Rosa CEO and President, Director | Sep 30, 2024 | Tax withholding | −4,697 | $0.99 | $4.65K | 1,146,486 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Mark Christianson Officer | Jun 30, 2026 | 10,000 | $33.40K | Jun 30, 2026 | Awarded |
| Mark Christianson Officer | Mar 9, 2026 | 30,000 | $25.20K | Mar 9, 2026 | Awarded |
| Mark Christianson Officer | Aug 20, 2025 | 30,000 | $24.21K | Aug 20, 2025 | Awarded |
| Mark Christianson Co-Founder, VP of Business Communication,Affiliate | Mar 14, 2025 | 30,000 | $30.60K | Mar 14, 2025 | Awarded |
| Mark Christianson co-founder, VP of Business Communication, Affiliat | May 24, 2024 | 30,000 | $32.70K | May 24, 2024 | Awarded |
| Mark Christianson Officer | Dec 21, 2023 | 50,000 | $69.00K | Dec 21, 2023 | awarded |