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United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

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US · SEC FORM 4

NEUROONE MEDICAL TECHNOLOGIES Corp

NMTC · Nasdaq · CIK 0001500198 · Healthcare · Medical Devices

INSIDER SIGNAL

38.5 / 100

1 buyers · 1 purchase transaction lines · $67.0K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleStrong
RecencyLow
ConvictionModerate
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+4.0 / 25
Role+18.0 / 20
Recency+4.2 / 10
Conviction+5.2 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Buying conviction is reduced by concurrent selling
  • ✓ Role scores high · most senior buyer: Chief Business Officer

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Wambeke David J.Chief Business Officer
●
Christianson MarkMarket Development Director
▼
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Wambeke David J. · $67.0K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-08-27–2026-08-27

Roles in the peak window: Chief Business Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

38.5 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 39.0
  2. 38.9
  3. 38.8
  4. 38.6
  5. 38.5

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

2Purchases
5Sales
11Other Form 4 lines
16SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER0 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-29.1%
3M
-57.9%
6M
-74.5%
12M
-82.1%

Volatility & liquidity

Volatility
86.8%
Beta
—
Avg daily value
USD 379,888

Valuation

Market cap
USD 9.7M
P/E
—

Fundamentals

Profit margin
-39.6%
ROE
-51.0%
Industry
Medical Devices

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-09-30 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-06-10 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
178,730
Previous report
75,782
Avg daily volume
150,116
Days to cover
1.2

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-27Wambeke David J.Purchase (P)Common Stock33,333USD 2.01USD 66,999SEC filing ↗
2026-03-01Wambeke David J.Purchase (P)Common Stock1,000,000USD 0.67USD 670,000SEC filing ↗
2025-04-04Rosa David APurchase (P)Common Stock100,000USD 0.50USD 50,000SEC filing ↗
2025-04-04McClurg Ronald W.Purchase (P)Common Stock200,000USD 0.50USD 100,000SEC filing ↗
2023-12-21Volker ChristopherPurchase (P)Common Stock75,000USD 1.40USD 105,000SEC filing ↗
2023-09-13McClurg Ronald W.Purchase (P)Common Stock50,900USD 0.98USD 49,882SEC filing ↗
2022-06-15McClurg Ronald W.Purchase (P)Common Stock10,000USD 1.02USD 10,200SEC filing ↗
2022-06-10McClurg Ronald W.Purchase (P)Common Stock14,000USD 1.06USD 14,840SEC filing ↗
2022-05-24McClurg Ronald W.Purchase (P)Common Stock10,500USD 0.98USD 10,290SEC filing ↗
2022-05-20McClurg Ronald W.Purchase (P)Common Stock17,500USD 0.85USD 14,875SEC filing ↗

Form 4 evidence

18 transaction lines in the latest 365-day window; 168 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-27Wambeke David J.Purchase (P)Common Stock33,333USD 2.01USD 66,999SEC filing ↗
2026-06-30Christianson MarkSale (S)Common Stock10,000USD 3.18USD 31,800SEC filing ↗
2026-04-03Mills Jason RichardAward / grant (A)Common Stock41,929USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (18 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-27Wambeke David J.Purchase (P)Common Stock33,333USD 2.01USD 66,999SEC filing ↗
2026-06-30Christianson MarkSale (S)Common Stock10,000USD 3.18USD 31,800SEC filing ↗
2026-04-03Mills Jason RichardAward / grant (A)Common Stock41,929USD 0.00USD 0SEC filing ↗
2026-04-03MATHIESEN JEFFREY SAward / grant (A)Common Stock41,929USD 0.00USD 0SEC filing ↗
2026-04-03BUCKMAN PAULAward / grant (A)Common Stock41,929USD 0.00USD 0SEC filing ↗
2026-04-03Andrle EdwardAward / grant (A)Common Stock41,929USD 0.00USD 0SEC filing ↗
2026-03-13Christianson MarkSale (S)Common Stock100USD 0.80USD 80SEC filing ↗
2026-03-12Christianson MarkSale (S)Common Stock817USD 0.80USD 654SEC filing ↗
2026-03-11Christianson MarkSale (S)Common Stock2,109USD 0.80USD 1,687SEC filing ↗
2026-03-10Christianson MarkSale (S)Common Stock11,611USD 0.80USD 9,289SEC filing ↗
2026-03-01Wambeke David J.Purchase (P)Common Stock1,000,000USD 0.67USD 670,000SEC filing ↗
2026-02-18Rosa David ATax withholding (F)Common Stock71,325USD 0.68USD 48,501SEC filing ↗
2026-02-18Mertens SteveTax withholding (F)Common Stock7,376USD 0.68USD 5,016SEC filing ↗
2026-02-18Christianson MarkTax withholding (F)Common Stock1,812USD 0.68USD 1,232SEC filing ↗
2025-12-31Rosa David ATax withholding (F)Common Stock2,458USD 0.76USD 1,868SEC filing ↗
2025-12-31Mertens SteveTax withholding (F)Common Stock906USD 0.76USD 689SEC filing ↗
2025-12-31Christianson MarkTax withholding (F)Common Stock253USD 0.76USD 192SEC filing ↗
2025-12-18Mills Jason RichardAward / grant (A)Common Stock7,758USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNMTC
CIK0001500198
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history168 transaction lines from 2020-02-10 to 2026-08-27
10 P purchase lines · 25 S sale lines · 133 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.