secwatch.observer — SEC 8-K summary ====================================== Issuer: Onconetix, Inc. (ONCO) CIK: 0001782107 Form: 8-K Filed at: 2026-05-19T20:05:26+00:00 Accession: 0001213900-26-058997 Event type: other_material Sentiment: neutral Materiality: 0.70 Item codes: 5.03, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Onconetix announces 1-for-10 reverse stock split effective May 21, 2026 to meet Nasdaq bid price rule -------------------------------------------------------------------------------- - Board fixed 1-for-10 reverse split ratio; effective 12:01 a.m. ET on May 21, 2026. - Reverse split reduces outstanding shares from ~11.4M to ~1.14M; no change in authorized shares or par value. - Split intended to regain compliance with Nasdaq $1.00 minimum bid price rule for continued listing. - No fractional shares issued; holders of fractional shares will receive cash compensation based on closing price on May 20, 2026. - Common stock continues trading on Nasdaq Capital Market under symbol ONCO with new CUSIP 68237Q 401. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1782107/000121390026058997/0001213900-26-058997-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1782107/000121390026058997/ea0291543-8k_onconetix.htm HTML page: https://secwatch.observer/filing/0001213900-26-058997 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer