secwatch.observer — SEC 8-K summary ====================================== Issuer: RayzeBio, Inc. (—) CIK: 0001825367 Form: 8-K Filed at: 2023-09-19T23:59:59+00:00 Accession: 0001193125-23-237666 Event type: other_material Sentiment: positive Materiality: 0.80 Item codes: 5.03, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 RayzeBio closes upsized IPO of 19.87M shares at $18.00, raising ~$336.7M gross proceeds -------------------------------------------------------------------------------- - Closed IPO of 19,869,240 shares at $18.00 per share, including full exercise of underwriters' option for 2,591,640 additional shares. - Gross proceeds to RayzeBio of approximately $336.7 million before underwriting discounts and expenses. - Selling stockholder sold 1,163,000 shares; RayzeBio received no proceeds from those sales. - Shares began trading on Nasdaq Global Market on September 15, 2023 under ticker RYZB. - Joint book-running managers: J.P. Morgan, Jefferies, Evercore ISI, Truist Securities. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1825367/000119312523237666/0001193125-23-237666-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1825367/000119312523237666/d474188d8k.htm HTML page: https://secwatch.observer/filing/0001193125-23-237666 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer