SUBJECT-0158.dossier · person · status: active
MT
subject of file

Matthew Tannin

Former Bear Stearns hedge fund manager arrested for fraud
Tracked because Former Bear Stearns hedge fund manager arrested for fraud · 4 documented connections
Facts on record5
Connections mapped4
Sources cited9
Evidence: 3P 1S 1I
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN company → [subsidiary] → company → [employment] → person 176× PATTERN company → [employment] → person 143× PATTERN person → [affiliation] → company → [employment] → person 140× PATTERN person → [oversight] → company → [employment] → person 111× PATTERN person → [sec filing] → government agency → [regulatory f... 104×
TIMELINE Role Overlap Visualizer →
Connection Map
Key Connections
→ Securities and Exchange Commission government agency
sec_filing
Matthew Tannin filed a filing with the SEC on 2007-05-09. Accession number: N/A.
→ Bear Stearns company
employment
Tannin was the co-manager of the Bear Stearns hedge funds. Like Cioffi, he was charged with and acquitted of securities fraud.
Facts (5)
Data Freshness
Ageing Last update: 159d ago · Avg age: 1426d
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 (4)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Partially Corroborated Matthew Tannin filed filing with the SEC on 2007-05-09. Accession number: N/A.
✓ verified Primary Source TANNIN, MATTHEW of NEW YORK, NY (employer: NONE, occupation: NOT EMPLOYED) made a campaign contribution of $250 to ACTBLUE on 2018-06-22. FEC transaction ID: SA11AI_115045206.
✓ verified Primary Source TANNIN, MATTHEW of NEW YORK, NY (employer: N/A, occupation: NOT EMPLOYED) made a campaign contribution of $250 to FRIENDS OF ANDREW YANG on 2018-06-22. FEC transaction ID: 799344.
✓ verified Primary Source TANNIN MMT, MATTHEW of NEW YORK, NY (employer: JANICE TANNIN, occupation: CHEF) made a campaign contribution of $50 to ACTBLUE on 2025-06-11. FEC transaction ID: SA11AI_718457756.
All Connections (4)
→ Bear Stearns company
employment primary
Tannin was the co-manager of the Bear Stearns hedge funds. Like Cioffi, he was charged with and acquitted of securities fraud.
→ Securities and Exchange Commission government agency
sec_filing primary since 2007
Matthew Tannin filed a filing with the SEC on 2007-05-09. Accession number: N/A.
← Ralph Cioffi person
colleague inferential since 2007
Ralph Cioffi and Matthew Tannin were co-managers of Bear Stearns hedge funds that collapsed in 2007, both charged with securities fraud.
← Henry Paulson person
membership secondary since 2007
Matthew Tannin co-managed Bear Stearns' failing hedge funds during Paulson's tenure at the firm.
Sources (9)
2026-05-10 UNVERIFIED SEARCH_ERROR: Matthew Tannin not found in fec claim_flag Processed 📜 Receipt
2026 UNVERIFIED Research: Matthew Tannin — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2007-05-09 ↗ SEC EDGAR: filing — Matthew Tannin (2007-05-09) sec_filing Processed 📜 Receipt
2026 UNVERIFIED Research: Matthew Tannin — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: Matthew Tannin — FEC donations (no results) fec_record Processed 📜 Receipt
2026 UNVERIFIED Research: Matthew Tannin — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2007-05-09 ↗ SEC EDGAR: filing — Matthew Tannin (2007-05-09) web_search Processed 📜 Receipt
2018-06-22 ↗ FEC: TANNIN, MATTHEW donation $250 to FRIENDS OF ANDREW YANG web_search Processed 📜 Receipt
2025-06-11 ↗ FEC: TANNIN MMT, MATTHEW donation $50 to ACTBLUE web_search Processed 📜 Receipt