---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-058968"
form_type: "8-K"
ticker: "MPB"
cik: "0000879635"
company_name: "MID PENN BANCORP INC"
filed_at: "2025-12-29T23:59:59+00:00"
generated_at: "2026-05-16T12:12:38.155023+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Mid Penn Bancorp dismisses RSM as auditor, engages Deloitte for FY 2026

## Summary
- Dismissed RSM as independent auditor, effective upon completion of FY 2025 audit (Dec 23, 2025).
- RSM's audit reports for FY 2023 and FY 2024 were unqualified; no disagreements on accounting or audit scope.
- Previously disclosed material weakness in ICFR for 2023 was subsequently remediated.
- Engaged Deloitte as new auditor for FY 2026, approved by Audit Committee after competitive process.
- No consultations with Deloitte on accounting matters prior to engagement.

## SEC filing metadata
- accession: 0001628280-25-058968
- form_type: 8-K
- ticker: MPB
- cik: 0000879635
- company_name: MID PENN BANCORP INC
- filed_at: 2025-12-29T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/879635/000162828025058968/0001628280-25-058968-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/879635/000162828025058968/mpb-20251223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-058968
- JSON: https://secwatch.observer/filing/0001628280-25-058968.json
- Plain text: https://secwatch.observer/filing/0001628280-25-058968.txt

## Source-grounded claims
- claim_id: 14b5764191ab6d77bde574a815af6cc99dcd897f
  claim: MID PENN BANCORP INC engaged Deloitte & Touche LLP as its auditor.
  evidence_excerpt: (b) Following a competitive process, on December 23, 2025, the Company engaged Deloitte & Touche LLP (“Deloitte”) as the Company’s new independent registered public accounting firm for the fiscal year ending December 31, 2026, and related interim periods, subject to Deloitte’s customary client acceptance procedure. The engagement of Deloitte was approved by the Audit Committee of the Board of Directors of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/879635/000162828025058968/0001628280-25-058968-index.htm
- claim_id: 77af43faa6c91929412776200c5f2c5016f8ded4
  claim: MID PENN BANCORP INC dismissed RSM US LLP as its auditor.
  evidence_excerpt: (the “Company”) dismissed RSM US LLP (“RSM”) as its independent registered public accounting firm, to be effective upon the completion of the audit for the fiscal year ending December 31, 2025. The dismissal of RSM was approved by the Audit Committee of the Board of Directors of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/879635/000162828025058968/0001628280-25-058968-index.htm

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