SUBJECT-11361.dossier · person · status: archived
MM
subject of file

Mark Madoff

Co-director of trading, BLMIS
Tracked because Family member implicated in proximity to the fraud; trustee actions against his estate.
Editorial summary · AI-drafted from public records

Elder son of Bernie Madoff, co-director of BLMIS market-making operations. Died by suicide on December 11, 2010 — the second anniversary of his father's arrest.

Facts on record2
Connections mapped23
Sources cited6
✦ Thin coverage gap +101 connected to 23 entities · only 2 facts on record · flagged for follow-up research
Evidence: 2S
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → View Card → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
TIMELINE Role Overlap Visualizer →
Connection Map
Key Connections
→ Federal Bureau of Investigation (FBI) institution
reporting/cooperation
Mark Madoff reported his father's confession to the FBI on December 10, 2008, which led to Bernie Madoff's arrest the next day.
← Bernard L. Madoff Investment Securities company
founder
Mark Madoff ran the market-making and proprietary trading businesses (House 5) and was not charged with criminal wrongdoing related to the Ponzi scheme.
← Bernie Madoff person
parent_child
Father–son. Mark co-directed BLMIS market-making; reported his father's confession to the FBI Dec 10, 2008; died by suicide on the second anniversary of the arrest.
Facts (2)
Data Freshness
Ageing Last update: 160d ago · Avg age: 245d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
✓ Verified Findings (2)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Partially Corroborated Died by suicide on December 11, 2010 — the second anniversary of his father's arrest — at his Manhattan apartment.
Date: 2010-12-11 Added: 20 Apr 2026 ↗ SOURCE: Mark Madoff — Wikipedia
✓ verified Partially Corroborated Co-director of BLMIS market-making and proprietary-trading operations; reported his father's confession to the FBI on December 10, 2008, leading to the next-day arrest.
Date: 2008-12-10 Added: 20 Apr 2026 ↗ SOURCE: Mark Madoff — Wikipedia
All Connections (23)
→ Andrés Piedrahíta person
affiliation secondary since 2008
Andrés Piedrahíta was a principal at Fairfield Greenwich Group, which invested in BLMIS while Mark Madoff was a director.
reporting/cooperation primary since 2008
Mark Madoff reported his father's confession to the FBI on December 10, 2008, which led to Bernie Madoff's arrest the next day.
→ Andrew Madoff person
family relationship secondary since 2008
Andrew Madoff is Mark Madoff's brother, as they are both sons of Bernie Madoff.
→ Peter Madoff person
family relationship secondary since 2008
Peter Madoff is Mark Madoff's uncle (brother of Bernie Madoff), as Peter was a senior executive at BLMIS alongside the family.
→ Irving H. Picard person
legal/proceeding secondary since 2009
Irving H. Picard, as the trustee liquidating BLMIS, would have been involved in legal proceedings related to Mark Madoff's estate and his role in the firm.
→ Jeffry Picower person
affiliation secondary since 2008
Jeffry Picower was a major investor and beneficiary of BLMIS operations where Mark Madoff was a director.
→ Carl Shapiro person
affiliation secondary since 2008
Carl Shapiro was a significant investor with BLMIS during Mark Madoff's tenure as co-director of operations.
affiliation secondary since 2008
Fairfield Greenwich Group was a major feeder fund that invested in BLMIS, where Mark Madoff oversaw market-making and trading.
affiliation secondary since 2008
Tremont Group Holdings was a feeder fund that invested in BLMIS during Mark Madoff's tenure.
affiliation secondary since 2008
MassMutual, through Tremont Group, was an investor in BLMIS while Mark Madoff was a co-director.
→ Kingate Global Fund company
affiliation secondary since 2008
Kingate Global Fund was a feeder fund that invested in BLMIS during Mark Madoff's time as co-director of operations.
affiliation secondary since 2008
Optimal Strategic US Equity, managed by Banco Santander, was a feeder fund that invested in BLMIS while Mark Madoff was a director.
→ Banco Santander company
affiliation secondary since 2008
Banco Santander was the parent company of Optimal Investment Services, which invested in BLMIS during Mark Madoff's tenure.
→ Mossack Fonseca company
affiliation secondary since 2008
Mossack Fonseca provided offshore legal and corporate services related to BLMIS feeder funds during Mark Madoff's time at the firm.
→ Jürgen Mossack person
affiliation secondary since 2008
Jürgen Mossack, co-founder of Mossack Fonseca, provided legal services that facilitated BLMIS investments during Mark Madoff's tenure.
→ Ramón Fonseca person
affiliation secondary since 2008
Ramón Fonseca, co-founder of Mossack Fonseca, provided legal services related to BLMIS feeder funds during Mark Madoff's time as director.
affiliation secondary since 2008
Fairfield Sentry Limited was the primary fund through which Fairfield Greenwich Group invested in BLMIS during Mark Madoff's co-directorship.
affiliation secondary since 2008
Kingate Management Limited managed the Kingate Global Fund, which invested in BLMIS while Mark Madoff was co-director of operations.
affiliation secondary since 2008
Optimal Investment Services, part of Banco Santander, was a feeder fund that invested in BLMIS during Mark Madoff's tenure.
→ Carlo Grosso person
affiliation secondary since 2008
Carlo Grosso was a principal at Fairfield Greenwich Group, which invested heavily in BLMIS while Mark Madoff oversaw trading operations.
← Bernie Madoff person
parent_child primary
Father–son. Mark co-directed BLMIS market-making; reported his father's confession to the FBI Dec 10, 2008; died by suicide on the second anniversary of the arrest.
founder primary since 2008
Mark Madoff ran the market-making and proprietary trading businesses (House 5) and was not charged with criminal wrongdoing related to the Ponzi scheme.
← Frank DiPascali person
co-worker inferential since 1975
Mark Madoff worked at BLMIS; DiPascali worked alongside him, though no direct statement linking them.
Sources (6)
2026 UNVERIFIED Research: Mark Madoff — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2026 UNVERIFIED Research: Mark Madoff — FEC donations (no results) fec_record Processed 📜 Receipt
2026 UNVERIFIED Research: Mark Madoff — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: Mark Madoff — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: Mark Madoff — SEC filings (no results) sec_filing Processed 📜 Receipt
2026-05-09 UNVERIFIED SEARCH_ERROR: Mark Madoff not found in fec claim_flag Processed 📜 Receipt