---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-274383"
form_type: "8-K"
ticker: "STIM"
cik: "0001227636"
company_name: "Neuronetics, Inc."
filed_at: "2024-12-10T23:59:59+00:00"
generated_at: "2026-05-29T05:03:14.577315+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Neuronetics closes Greenbrook TMS acquisition; adds 2 directors; secures $10M loan amendment.

## Summary
- Acquisition closed Dec 9; exchange ratio 0.01021 Neuronetics share per Greenbrook share; Greenbrook to delist from OTCQB.
- Madryn converted ~2.06B Greenbrook Shares from credit agreement and ~253M from interim funding, receiving Neuronetics shares at exchange ratio.
- Board expanded to 7; appointed Sasha Cucuz (Greybrook CEO) and Dr. Avinash Amin (Madryn managing partner).
- Credit agreement with Perceptive amended to allow $10M Tranche 3 loan for combined operations and new revenue covenants; warrant for 600k shares issued.
- Combined company to operate as Neuronetics (STIM); integration targeting cost synergies and profitable growth.

## SEC filing metadata
- accession: 0001193125-24-274383
- form_type: 8-K
- ticker: STIM
- cik: 0001227636
- company_name: Neuronetics, Inc.
- filed_at: 2024-12-10T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.01, 3.02, 5.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1227636/000119312524274383/0001193125-24-274383-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227636/000119312524274383/d897369d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-274383
- JSON: https://secwatch.observer/filing/0001193125-24-274383.json
- Plain text: https://secwatch.observer/filing/0001193125-24-274383.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.