---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-058252"
form_type: "8-K"
ticker: "PODD"
cik: "0001145197"
company_name: "INSULET CORP"
filed_at: "2025-12-19T23:59:59+00:00"
generated_at: "2026-05-16T12:31:32.418753+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Insulet dismisses Grant Thornton, appoints PwC as auditor for FY 2026

## Summary
- Audit Committee approved PwC as independent auditor for FY 2026, subject to client acceptance; Grant Thornton dismissed.
- Grant Thornton's reports for FY 2024 and 2023 had no adverse opinion and were not qualified or modified.
- No disagreements or reportable events occurred between Insulet and Grant Thornton during 2024, 2023, and interim through Dec 15, 2025.
- Previously disclosed material weakness (ITGC outside North America) has been remediated as of FY 2024.
- Grant Thornton will complete the FY 2025 audit; PwC begins with FY 2026.

## SEC filing metadata
- accession: 0001628280-25-058252
- form_type: 8-K
- ticker: PODD
- cik: 0001145197
- company_name: INSULET CORP
- filed_at: 2025-12-19T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1145197/000162828025058252/0001628280-25-058252-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1145197/000162828025058252/podd-20251215.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-058252
- JSON: https://secwatch.observer/filing/0001628280-25-058252.json
- Plain text: https://secwatch.observer/filing/0001628280-25-058252.txt

## Source-grounded claims
- claim_id: 9eab3ba88ff31ef5bfcdfa0c1973f12b867036a0
  claim: INSULET CORP dismissed Grant Thornton LLP as its auditor.
  evidence_excerpt: poration (the “Company”) approved the appointment of PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accounting firm, subject to completion of standard client acceptance procedures, and dismissed Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1145197/000162828025058252/0001628280-25-058252-index.htm
- claim_id: ef00fdf469294886f728a27deb742ddfac93587b
  claim: INSULET CORP engaged PricewaterhouseCoopers LLP as its auditor.
  evidence_excerpt: s Certifying Accountant On December 15, 2025, following careful deliberation and a competitive process, the Audit Committee (the “Committee”) of the Board of Directors of Insulet Corporation (the “Company”) approved the appointment of PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accounting firm, subject to completion of standard client acceptance procedures, and dismissed Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. Grant Thornton was previously engaged to audit the Company’s consolidated financial statements for the year ending December 31, 2025. The appointment of PwC does not affect Grant Thornton’s engagement for the year ended December 31, 2025. Grant Thornton’s reports on the consolidated financial statements of the Company for the fiscal years
  evidence_url: https://www.sec.gov/Archives/edgar/data/1145197/000162828025058252/0001628280-25-058252-index.htm

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