# MARA HOLDINGS INC NOTE 6/0

MARA HOLDINGS INC NOTE 6/0 is a security (CUSIP 565788AH9) tracked across SEC portfolio filings. 26 institutional managers reported $280.6M on Form 13F as of 2026-06-30; 2 registered fund positions totaling $9.4M via N-PORT as of 2026-04-30.

## Summary

- Issuer: MARA HOLDINGS INC
- Class: NOTE 6/0
- CUSIP: 565788AH9
- Asset category: DBT
- 13F holders: 26
- 13F value: $280.6M
- 13F period: 2026-06-30
- N-PORT fund positions: 2
- N-PORT value: $9.4M
- N-PORT report: 2026-04-30

## Top institutional holders (Form 13F)

_Showing 15 of 26 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Context Capital Management, LLC | LAJOLLA, CA | $50.8M | 52,241,000 |
| [WHITEBOX ADVISORS LLC](https://search.stillhousedata.com/firm/121995) | MINNEAPOLIS, MN | $47.7M | 52,000,000 |
| ARISTEIA CAPITAL LLC | GREENWICH, CT | $44.0M | 47,744,000 |
| STATE STREET CORP | BOSTON, MA | $17.5M | 19,200,000 |
| [Long Corridor Asset Management Ltd](https://search.stillhousedata.com/firm/305305) | HONG KONG, K3 | $14.7M | 16,000,000 |
| BlackRock, Inc. | New York, NY | $14.0M | 15,275,000 |
| MORGAN STANLEY | NEW YORK, NY | $12.7M | 13,835,000 |
| [DSC Meridian Capital LP](https://search.stillhousedata.com/firm/296590) | NEW YORK, NY | $10.6M | 11,506,000 |
| FMR LLC | BOSTON, MA | $9.4M | 10,264,000 |
| [CAPSTONE INVESTMENT ADVISORS, LLC](https://search.stillhousedata.com/firm/155563) | NEW YORK, NY | $9.2M | 10,000,000 |
| K2 PRINCIPAL FUND, L.P. | TORONTO, A6 | $8.2M | 9,000 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $6.9M | 7,500,000 |
| CITIGROUP INC | NEW YORK, NY | $5.8M | 6,005,000 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $5.0M | 5,425,000 |
| [Parallax Volatility Advisers, L.P.](https://search.stillhousedata.com/firm/158143) | San Francisco, CA | $4.8M | 5,000,000 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| TRI-CONTINENTAL Corp | TRI-CONTINENTAL Corp | $6.4M | 33.87% |
| [Global Opportunities Portfolio](https://search.stillhousedata.com/fund/S000027417) | Global Opportunities Portfolio | $3.0M | 2.22% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/565788AH9.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.