---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-088604"
form_type: "8-K"
ticker: "RYTM"
cik: "0001649904"
company_name: "RHYTHM PHARMACEUTICALS, INC."
filed_at: "2023-08-08T23:59:59+00:00"
generated_at: "2026-06-12T02:11:54.630278+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Rhythm Pharma terminates CAO, appoints Christopher German as principal accounting officer

## Summary
- William T. Roberts terminated as CAO effective Aug 11, 2023; no reason stated.
- Christopher German, Executive Director, Corporate Controller since Mar 2023, named principal accounting officer.
- German brings 20+ years experience in financial reporting and accounting; holds CPA and B.S. from Lehigh.
- German previously served as Corporate Controller at Oncorus (2021-2023) and Repligen (2018-2021).

## SEC filing metadata
- accession: 0001104659-23-088604
- form_type: 8-K
- ticker: RYTM
- cik: 0001649904
- company_name: RHYTHM PHARMACEUTICALS, INC.
- filed_at: 2023-08-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1649904/000110465923088604/0001104659-23-088604-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1649904/000110465923088604/tm2323116d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-088604
- JSON: https://secwatch.observer/filing/0001104659-23-088604.json
- Plain text: https://secwatch.observer/filing/0001104659-23-088604.txt

## Key facts
- Executive change
  Christopher German was appointed as Principal Accounting Officer at RHYTHM PHARMACEUTICALS, INC..
  - Action: designated
  - Role: Principal Accounting Officer
  source text: On August 8, 2023, the Board of Directors of the Company designated Christopher German, the Company’s Executive Director, Corporate Controller, as principal accounting officer, effective on the Effective Date.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1649904/000110465923088604/0001104659-23-088604-index.htm
- Executive change
  William T. Roberts was terminated as Chief Accounting Officer at RHYTHM PHARMACEUTICALS, INC..
  - Action: terminated
  - Role: Chief Accounting Officer
  source text: On August 4, 2023, Rhythm Pharmaceuticals, Inc. (the “Company”) notified William T. Roberts, the Company’s Chief Accounting Officer, of the termination of Mr. Roberts’ employment with the Company, to be effective on August 11, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/1649904/000110465923088604/0001104659-23-088604-index.htm

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