---
schema_version: "secwatch.filing_event.v1"
accession: "0000905148-21-000732"
form_type: "8-K"
ticker: "MADL"
cik: "0001052354"
company_name: "MAN AHL DIVERSIFIED I LP"
filed_at: "2021-12-17T23:59:59+00:00"
generated_at: "2026-06-27T23:59:09.247723+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Man-AHL Diversified I L.P. General Partner appoints Christopher Guarnotta as new PFO effective Dec 15, 2021

## Summary
- Colin Bettison resigned as principal financial officer of the General Partner for the fund on December 15, 2021.
- Christopher Guarnotta appointed as successor principal financial officer of the General Partner for the fund on same date.
- Guarnotta is Head of Middle Office Accounting at Man Numeric, an affiliate, since 2014; prior role at Batterymarch Financial Management.

## SEC filing metadata
- accession: 0000905148-21-000732
- form_type: 8-K
- ticker: MADL
- cik: 0001052354
- company_name: MAN AHL DIVERSIFIED I LP
- filed_at: 2021-12-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1052354/000090514821000732/0000905148-21-000732-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1052354/000090514821000732/efc21-638_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000905148-21-000732
- JSON: https://secwatch.observer/filing/0000905148-21-000732.json
- Plain text: https://secwatch.observer/filing/0000905148-21-000732.txt

## Key facts
- Executive change
  Colin Bettison resigned as Principal Financial Officer at MAN AHL DIVERSIFIED I LP.
  - Action: resigned
  - Role: Principal Financial Officer
  source text: As of December 15, 2021, Mr. Colin Bettison , 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/1052354/000090514821000732/0000905148-21-000732-index.htm
- Executive change
  Christopher Guarnotta was appointed as Principal Financial Officer at MAN AHL DIVERSIFIED I LP.
  - Action: appointed
  - Role: Principal Financial Officer
  source text: As of December 15, 2021, Mr. Christopher Guarnotta 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/1052354/000090514821000732/0000905148-21-000732-index.htm

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