secwatch.observer — SEC 8-K summary ====================================== Issuer: TANDEM DIABETES CARE INC (TNDM) CIK: 0001438133 Form: 8-K Filed at: 2025-12-30T23:59:59+00:00 Accession: 0001438133-25-000237 Event type: other Sentiment: neutral Materiality: 0.30 Item codes: 5.03, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Tandem Diabetes amends bylaws with updated advance notice, proxy card, voting rules -------------------------------------------------------------------------------- - Board adopted Amended and Restated Bylaws on Dec 26, 2025 as part of periodic governance review. - Advance notice provisions updated: stockholder nominees must satisfy Rule 14a-19 requirements; non-compliant nominees disregarded. - White proxy card reserved exclusively for Board; other solicitations must use non-white cards. - Voting standard (plurality for contested, majority for uncontested) determined 10 days before notice mailing. - Board given express authority to cancel, reschedule, or postpone stockholder meetings. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1438133/000143813325000237/0001438133-25-000237-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1438133/000143813325000237/tndm-20251226.htm HTML page: https://secwatch.observer/filing/0001438133-25-000237 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer