NEUROONE MEDICAL TECHNOLOGIES Corp (NMTC) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of NMTC are David A Rosa (Ceo And President, 1.08Mn shares), David J. Wambeke (Chief Business Officer, 1.00Mn shares), Ronald W. Mcclurg (Chief Financial Officer, 444.12K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
David A Rosa Ceo And President 1,082,590 0 20 Feb, 2026
David J. Wambeke Chief Business Officer 1,000,000 0 03 Mar, 2026
Ronald W. Mcclurg Chief Financial Officer 444,117 0 07 Apr, 2025
Mark Christianson Business Development Director 228,920 0 20 Feb, 2026
Mark Christianson Business Development Director 214,283 0 16 Mar, 2026
Steve Mertens Chief Technology Officer 153,047 0 20 Feb, 2026
Paul Buckman 136,804 0 19 Feb, 2025
Jeffrey S Mathiesen 114,414 0 19 Feb, 2025
Edward Andrle 92,003 0 19 Feb, 2025
Christopher Volker Chief Operating Officer 75,000 0 26 Dec, 2023
Jason Richard Mills 7,758 0 02 Jan, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
12 Mar, 2026 Mark Christianson Common Stock D 817 $0.80 214,383 D S
13 Mar, 2026 Mark Christianson Common Stock D 100 $0.80 214,283 D S
10 Mar, 2026 Mark Christianson Common Stock D 11,611 $0.80 217,309 D S
11 Mar, 2026 Mark Christianson Common Stock D 2,109 $0.80 215,200 D S
01 Mar, 2026 David J. Wambeke Common Stock A 1,000,000 $0.67 1,000,000 D P
01 Mar, 2026 David J. Wambeke Option to Purchase Common Stock A 500,000 $0.00 500,000 D A
18 Feb, 2026 Mark Christianson Common Stock D 1,812 $0.68 228,920 D F
18 Feb, 2026 David A Rosa Common Stock D 71,325 $0.68 1,082,590 D F
18 Feb, 2026 Steve Mertens Common Stock D 7,376 $0.68 153,047 D F
18 Feb, 2026 Mark Christianson Common Stock D 1,812 $0.68 228,920 D F
31 Dec, 2025 David A Rosa Common Stock A 2,458 $0.76 1,153,915 D F
31 Dec, 2025 Mark Christianson Common Stock D 253 $0.76 230,732 D F
31 Dec, 2025 Mark Christianson Common Stock D 253 $0.76 230,732 D F
31 Dec, 2025 Steve Mertens Common Stock D 906 $0.76 160,423 D F
18 Dec, 2025 Jason Richard Mills Common Stock A 7,758 $0.00 7,758 D A
18 Dec, 2025 Jason Richard Mills Option to purchase common stock A 4,806 $0.00 4,806 D A
30 Sep, 2025 David A Rosa Common Stock D 2,458 $0.89 1,156,373 D F
30 Sep, 2025 Mark Christianson Common Stock D 253 $0.89 230,985 D F
30 Sep, 2025 Steve Mertens Common Stock D 906 $0.89 161,329 D F
30 Sep, 2025 Mark Christianson Common Stock D 253 $0.89 230,985 D F