---
schema_version: "secwatch.filing_event.v1"
accession: "0001438133-26-000052"
form_type: "8-K"
ticker: "TNDM"
cik: "0001438133"
company_name: "TANDEM DIABETES CARE INC"
filed_at: "2026-05-15T11:59:42+00:00"
generated_at: "2026-05-15T12:07:44.402522+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Tandem Diabetes terminates CCO Mark Novara without cause; last day May 18

## Summary
- Mark Novara, EVP & Chief Commercial Officer, notified of termination without cause on May 11, 2026.
- His last day of employment is scheduled to be May 18, 2026.
- Company states its strategy and 2026 goals remain unchanged.
- No successor has been announced as of the filing date.

## SEC filing metadata
- accession: 0001438133-26-000052
- form_type: 8-K
- ticker: TNDM
- cik: 0001438133
- company_name: TANDEM DIABETES CARE INC
- filed_at: 2026-05-15T11:59:42+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1438133/000143813326000052/0001438133-26-000052-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1438133/000143813326000052/tndm-20260511.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001438133-26-000052
- JSON: https://secwatch.observer/filing/0001438133-26-000052.json
- Plain text: https://secwatch.observer/filing/0001438133-26-000052.txt

## Key facts
- Executive change
  Mark Novara was terminated as Executive Vice President and Chief Commercial Officer at TANDEM DIABETES CARE INC.
  - Action: terminated
  - Role: Executive Vice President and Chief Commercial Officer
  source text: On May 11, 2026, Mark Novara, the Executive Vice President and Chief Commercial Officer of Tandem Diabetes Care, Inc. (the “Company”), was notified that his employment with the Company is being terminated without cause.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1438133/000143813326000052/0001438133-26-000052-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.