secwatch.observer — SEC 8-K summary ====================================== Issuer: Metsera, Inc. (—) CIK: 0002040807 Form: 8-K Filed at: 2025-04-28T23:59:59+00:00 Accession: 0001193125-25-100859 Event type: leadership Sentiment: neutral Materiality: 0.50 Item codes: 5.02, 7.01 LLM model: deepseek-v4-flash:cloud@v2 Metsera appoints Jon Stonehouse to Board and Matt Lang as Chief Legal Officer ----------------------------------------------------------------------------- - Jon P. Stonehouse appointed to Board (Class III) and Audit Committee effective April 28, 2025. - Matthew Lang appointed Chief Legal Officer and Secretary; previously CBO/CLO at Lyell Immunopharma. - Stonehouse receives option award vesting in 36 equal monthly installments under director comp plan. - Stonehouse is CEO of BioCryst Pharmaceuticals; brings M&A and pharma leadership experience. - Lang's background includes executive roles at Myovant Sciences and Gilead Sciences. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/2040807/000119312525100859/0001193125-25-100859-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/2040807/000119312525100859/d116647d8k.htm HTML page: https://secwatch.observer/filing/0001193125-25-100859 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer