Owns preparation and review of SEC filings, including 10-Q, 10-K, 8-K, and proxy materials. Researches complex technical accounting matters, drafts accounting memos and policies, monitors GAAP and SEC updates, and leads implementation assessments. Supports SOX/ICFR controls, audit activities, close processes, and cross-functional disclosure efforts with FP&A, Legal, and Investor Relations. Maintains SEC reporting tools and communicates complex accounting matters clearly to executives and auditors.