---
schema_version: "secwatch.filing_event.v1"
accession: "0000905148-23-001031"
form_type: "8-K"
ticker: "MADL"
cik: "0001052354"
company_name: "MAN AHL DIVERSIFIED I LP"
filed_at: "2023-10-02T23:59:59+00:00"
generated_at: "2026-06-10T06:14:01.102145+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Christopher Guarnotta resigns as PFO; Mark Bilancieri appointed

## Summary
- Christopher Guarnotta resigned as principal financial officer of the general partner, Man Investments (USA) Corp., effective September 29, 2023.
- Mark Bilancieri appointed as successor principal financial officer of the general partner, effective same date.
- Bilancieri currently serves as Head of Middle Office Accounting at Man Numeric, an affiliate, and joined in 2019.
- The Fund has no officers or directors; its affairs are managed by the general partner.

## SEC filing metadata
- accession: 0000905148-23-001031
- form_type: 8-K
- ticker: MADL
- cik: 0001052354
- company_name: MAN AHL DIVERSIFIED I LP
- filed_at: 2023-10-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1052354/000090514823001031/0000905148-23-001031-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1052354/000090514823001031/efc23-348_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000905148-23-001031
- JSON: https://secwatch.observer/filing/0000905148-23-001031.json
- Plain text: https://secwatch.observer/filing/0000905148-23-001031.txt

## Key facts
- Executive change
  Mark Bilancieri was appointed as principal financial officer at MAN AHL DIVERSIFIED I LP.
  - Action: appointed
  - Role: principal financial officer
  source text: (b) As of September 29, 2023, Mr. Mark Bilancieri was appointed principal financial officer of the General Partner for purposes of the management of the Fund.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1052354/000090514823001031/0000905148-23-001031-index.htm
- Executive change
  Christopher Guarnotta resigned as principal financial officer at MAN AHL DIVERSIFIED I LP.
  - Action: resigned
  - Role: principal financial officer
  source text: As of September 29, 2023, Mr. Christopher Guarnotta, acting as the principal financial officer of the General Partner for purposes of the management of the Fund, resigned from the General Partner.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1052354/000090514823001031/0000905148-23-001031-index.htm

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