NeuroOne Medical Technologies Corporation

NMTCNASDAQHealthcare● Active

$3.46

+$0.02(+0.58%)

Market Cap$29824771

P/E Ratio—

52W High$6.96

52W Low$3.276

Avg Volume38K

Open$3.43

Beta0.51

Overview

NeuroOne Medical Technologies Corporation (NMTC) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · NMTC · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.27

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 21%Active transactions only · RSU vesting excluded79% Sell ↓

NeuroOne Medical Technologies Corporation insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 9, 2026

NMTC insider buying and selling by quarter

NMTC insider selling · NMTC insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

2.9M1.5M0

2024 Q2

2024 Q3

2024 Q4

2025 Q1

2025 Q2

2025 Q3

2025 Q4

2026 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 9, 2026

Active insiders

Most active in past 12 months · NMTC ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

NMTC executive sell shares · NMTC board member insider trading · NMTC insider trading SEC filing

Showing 78 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Apr 3, 2026	Mills Jason Richard Director	Award	41,929	—	—	49,687	Form 4
Apr 3, 2026	MATHIESEN JEFFREY S Director	Award	41,929	—	—	156,343	Form 4
Apr 3, 2026	BUCKMAN PAUL Director	Award	41,929	—	—	178,733	Form 4
Apr 3, 2026	Andrle Edward Director	Award	41,929	—	—	133,932	Form 4
Mar 30, 2026	Christianson Mark Business Development Director	Sale	15,363	$0.74	$11K	198,920	Form 4
Mar 31, 2026	Christianson Mark Business Development Director	Other	253	$0.78	$197	198,667	Form 4
Mar 31, 2026	Mertens Steve CTO	Other	906	$0.78	$704	152,141	Form 4
Mar 31, 2026	Rosa David A CEO and President · Director	Other	2,458	$0.78	$2K	1,080,132	Form 4
Mar 12, 2026	Christianson Mark Business Development Director	Sale	817	$0.80	$654	214,383	Form 4
Mar 13, 2026	Christianson Mark Business Development Director	Sale	100	$0.80	$80	214,283	Form 4
Mar 10, 2026	Christianson Mark Business Development Director	Sale	11,611	$0.80	$9K	217,309	Form 4
Mar 11, 2026	Christianson Mark Business Development Director	Sale	2,109	$0.80	$2K	215,200	Form 4
Mar 1, 2026	Wambeke David J. Chief Business Officer	Purchase	1,000,000	$0.67	$670K	1,000,000	Form 4
Feb 18, 2026	Mertens Steve CTO	Other	7,376	$0.68	$5K	153,047	Form 4
Feb 18, 2026	Christianson Mark Business Development Director	Other	1,812	$0.68	$1K	228,920	Form 4
Feb 18, 2026	Rosa David A CEO and President · Director	Other	71,325	$0.68	$49K	1,082,590	Form 4
Dec 31, 2025	Mertens Steve CTO	Other	906	$0.76	$687	160,423	Form 4
Dec 31, 2025	Rosa David A CEO and President · Director	Other	2,458	$0.76	$2K	1,153,915	Form 4
Dec 31, 2025	Christianson Mark Business Development Director	Other	253	$0.76	$192	230,732	Form 4
Dec 18, 2025	Mills Jason Richard Director	Award	7,758	—	—	7,758	Form 4
Sep 30, 2025	Mertens Steve CTO	Other	906	$0.89	$805	161,329	Form 4
Sep 30, 2025	Christianson Mark Business Development Director	Other	253	$0.89	$225	230,985	Form 4
Sep 30, 2025	Rosa David A CEO and President · Director	Other	2,458	$0.89	$2K	1,156,373	Form 4
Sep 5, 2025	Christianson Mark Business Development Director	Sale	30,000	$0.74	$22K	231,238	Form 4
Jun 30, 2025	Christianson Mark Business Development Director	Other	253	$0.68	$172	261,238	Form 4

Mills Jason Richard

Director

Award

Date

Apr 3

41,929

Price

—

Value

—

View Form 4 on SEC.gov

MATHIESEN JEFFREY S

Director

Award

Date

Apr 3

41,929

Price

—

Value

—

View Form 4 on SEC.gov

BUCKMAN PAUL

Director

Award

Date

Apr 3

41,929

Price

—

Value

—

View Form 4 on SEC.gov

Andrle Edward

Director

Award

Date

Apr 3

41,929

Price

—

Value

—

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Mar 30

15,363

Price

$0.74

Value

$11K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Other

Date

Mar 31

253

Price

$0.78

Value

$197

View Form 4 on SEC.gov

Mertens Steve

CTO

Other

Date

Mar 31

906

Price

$0.78

Value

$704

View Form 4 on SEC.gov

Rosa David A

CEO and President · Director

Other

Date

Mar 31

2,458

Price

$0.78

Value

$2K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Mar 12

817

Price

$0.80

Value

$654

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Mar 13

100

Price

$0.80

Value

$80

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Mar 10

11,611

Price

$0.80

Value

$9K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Mar 11

2,109

Price

$0.80

Value

$2K

View Form 4 on SEC.gov

Wambeke David J.

Chief Business Officer

Purchase

Date

Mar 1

1,000,000

Price

$0.67

Value

$670K

View Form 4 on SEC.gov

Mertens Steve

CTO

Other

Date

Feb 18

7,376

Price

$0.68

Value

$5K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Other

Date

Feb 18

1,812

Price

$0.68

Value

$1K

View Form 4 on SEC.gov

Rosa David A

CEO and President · Director

Other

Date

Feb 18

71,325

Price

$0.68

Value

$49K

View Form 4 on SEC.gov

Mertens Steve

CTO

Other

Date

Dec 31

906

Price

$0.76

Value

$687

View Form 4 on SEC.gov

Rosa David A

CEO and President · Director

Other

Date

Dec 31

2,458

Price

$0.76

Value

$2K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Other

Date

Dec 31

253

Price

$0.76

Value

$192

View Form 4 on SEC.gov

Mills Jason Richard

Director

Award

Date

Dec 18

7,758

Price

—

Value

—

View Form 4 on SEC.gov

Mertens Steve

CTO

Other

Date

Sep 30

906

Price

$0.89

Value

$805

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Other

Date

Sep 30

253

Price

$0.89

Value

$225

View Form 4 on SEC.gov

Rosa David A

CEO and President · Director

Other

Date

Sep 30

2,458

Price

$0.89

Value

$2K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Sale

Date

Sep 5

30,000

Price

$0.74

Value

$22K

View Form 4 on SEC.gov

Christianson Mark

Business Development Director

Other

Date

Jun 30

253

Price

$0.68

Value

$172

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 4

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About NMTC insider trading

NMTC insider trades

NeuroOne Medical Technologies Corporation (NMTC) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Christianson Mark (Business Development Director), Mertens Steve (CTO), Rosa David A (CEO and President · Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. NMTC insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For NeuroOne Medical Technologies Corporation's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

NMTC insider trading · 5 questions

The insiders of NeuroOne Medical Technologies Corporation (NMTC) include executives and directors such as Christianson Mark (Business Development Director), Mertens Steve (CTO), Rosa David A (CEO and President · Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

NMTC board member insider tradingwho are NMTC insidersNMTC insider rosterNeuroOne Medical Technologies Corporation executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026