---
schema_version: "secwatch.filing_event.v1"
accession: "0001438133-24-000042"
form_type: "8-K"
ticker: "TNDM"
cik: "0001438133"
company_name: "TANDEM DIABETES CARE INC"
filed_at: "2024-03-11T23:59:59+00:00"
generated_at: "2026-06-04T23:44:56.642511+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Tandem Diabetes Care issues $316.25M convertible notes, repurchases existing 2025 notes and common stock

## Summary
- Issued $316.25M aggregate principal amount of 1.50% Convertible Senior Notes due 2029, including full exercise of initial purchasers' option for additional $41.25M.
- Used $246.1M of net proceeds to repurchase $246.7M of its 1.50% Convertible Senior Notes due 2025 in privately negotiated transactions.
- Used $30.0M to repurchase approximately 1.1 million shares of common stock at $27.105 per share from note purchasers.
- Entered capped call transactions with initial purchasers to reduce potential dilution upon conversion, with initial cap price of $42.0128 per share.
- Net proceeds were approximately $306.4M after deducting discounts, commissions, and capped call costs.

## SEC filing metadata
- accession: 0001438133-24-000042
- form_type: 8-K
- ticker: TNDM
- cik: 0001438133
- company_name: TANDEM DIABETES CARE INC
- filed_at: 2024-03-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1438133/000143813324000042/0001438133-24-000042-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1438133/000143813324000042/tndm-20240304.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001438133-24-000042
- JSON: https://secwatch.observer/filing/0001438133-24-000042.json
- Plain text: https://secwatch.observer/filing/0001438133-24-000042.txt

## Key facts
- Debt Financings
  TANDEM DIABETES CARE INC incurred convertible notes of $316.25 million aggregate principal amount with U.S. Bank Trust Company, National Association at 1.50% per year maturing March 15, 2029.
  - Instrument: convertible notes
  - Principal: $316.25 million aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 1.50% per year
  - Maturity: March 15, 2029
  - Event: incurrence
  source text: On March 8, 2024, Tandem Diabetes Care, Inc. (the “Company”) completed its previously announced private offering (the “Offering”) of $316.25 million aggregate principal amount of 1.50% Convertible Senior Notes due 2029 (the “Notes”), including the exercise in full of the initial purchasers’ option to purchase up to an additional $41.25 million principal amount of Notes.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1438133/000143813324000042/0001438133-24-000042-index.htm
- Material Agreements
  TANDEM DIABETES CARE INC entered into Indenture with U.S. Bank Trust Company, National Association valued at $316.25 million aggregate principal amount (effective 2024-03-08).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: U.S. Bank Trust Company, National Association
  - Value: $316.25 million aggregate principal amount
  - Effective: 2024-03-08
  source text: Indenture and Notes On March 8, 2024, Tandem Diabetes Care, Inc. (the “Company”) completed its previously announced private offering (the “Offering”) of $316.25 million aggregate principal amount of 1.50% Convertible Senior Notes due 2029
  evidence_url: https://www.sec.gov/Archives/edgar/data/1438133/000143813324000042/0001438133-24-000042-index.htm

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