{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-24-048931","form_type":"8-K","ticker":null,"cik":"0001735948","company_name":"Greenbrook TMS Inc.","filed_at":"2024-12-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.405616+00:00","generated_at":"2026-05-29T05:13:50.012207+00:00","sec_items":["1.01","8.01","2.01","2.03","3.03","5.01","5.02","7.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.9,"calibrated_materiality_score":0.9,"confidence":"high","headline":"Neuronetics completes acquisition of Greenbrook TMS; Greenbrook becomes wholly owned subsidiary","bullets":["Greenbrook borrowed $1.5M unsecured from Madryn at 0% interest, maturing by Dec 31, 2024.","Neuronetics acquired all Greenbrook shares; each share exchanged for 0.01021 Neuronetics common share.","Madryn converted ~$128M Term Loans into 2,309,453,605 Greenbrook shares, holding 95.8% pre-closing.","Board members Burke, Campbell, Cucuz, Elstad, Leonard, Mann, Tworecke departed; new directors appointed.","Greenbrook shares removed from OTCQB; combined company trades as STIM on NASDAQ."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-24-048931","json":"https://secwatch.observer/filing/0001140361-24-048931.json","markdown":"https://secwatch.observer/filing/0001140361-24-048931.md","text":"https://secwatch.observer/filing/0001140361-24-048931.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1735948/000114036124048931/0001140361-24-048931-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1735948/000114036124048931/ef20039750_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud","generated_at":"2026-05-29T05:13:50.012207+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"86afce9578e2fc79daac745c52d41f2b95137602","claim":"Greenbrook TMS Inc. underwent a change of control involving Neuronetics, Inc. for 0.01021 of a share of Neuronetics common stock (closed 2024-12-09).","evidence_excerpt":"Agreement ”) and the Plan of Arrangement, each Greenbrook Share outstanding immediately prior to the effective time of the Arrangement (the “ Effective Time ”) was exchanged for 0.01021 of a share of Neuronetics common stock, in accordance with the terms of the Arrangement Agreement (the “ Consideration ”). A copy of the Arrangement Agreement was filed as Exhibit","evidence_source":"SEC 8-K Item 2.01/5.01","evidence_url":"https://www.sec.gov/Archives/edgar/data/1735948/000114036124048931/0001140361-24-048931-index.htm","confidence":0.9,"family_label":"M&A Transactions","details":[{"label":"Action","value":"change of control"},{"label":"Counterparty","value":"Neuronetics, Inc."},{"label":"Consideration","value":"0.01021 of a share of Neuronetics common stock"},{"label":"Closing","value":"2024-12-09"}],"fact_type":"ma_transaction"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}