MARA MARA Holdings, Inc.
MARA Holdings, Inc. (MARA) Institutional Ownership
What the institutions did with MARA last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 64.1M | 22.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 27.4M | 9.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 16.5M | 5.9% |
| STATE STREET CORP | 15.9M | 5.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 10.9M | 3.9% |
| D. E. Shaw & Co., Inc. | 10.4M | 3.7% |
| Marex Group Ltd | 8.0M | 2.8% |
| MORGAN STANLEY | 6.8M | 2.4% |
| BANK OF AMERICA CORP /DE/ | 6.1M | 2.2% |
| UBS Group AG | 5.6M | 2.0% |
| GOLDMAN SACHS GROUP INC | 5.0M | 1.8% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 4.7M | 1.7% |
| DIMENSIONAL FUND ADVISORS LP | 4.5M | 1.6% |
| NORTHERN TRUST CORP | 3.7M | 1.3% |
| VAN ECK ASSOCIATES CORP | 3.5M | 1.2% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 3.4M | 1.2% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.3M | 1.2% |
| SEGALL BRYANT & HAMILL, LLC | 2.8M | 1.0% |
| Bank of New York Mellon Corp | 2.7M | 1.0% |
| Clear Street Group Inc. | 2.7M | 0.9% |
| TWO SIGMA INVESTMENTS, LP | 2.6M | 0.9% |
| VANGUARD FIDUCIARY TRUST CO | 2.5M | 0.9% |
| JPMORGAN CHASE & CO | 2.5M | 0.9% |
| Quadrature Capital Ltd | 2.4M | 0.9% |
| CANADA PENSION PLAN INVESTMENT BOARD | 2.3M | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | Increased | 1.3M | 10.4M | +9.1M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 104.3K | 4.5M | +4.4M |
| BlackRock, Inc. | Increased | 59.8M | 64.1M | +4.3M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 3.4M | +3.4M |
| Capital Research Global Investors | Sold Out | 3.3M | 0 | -3.3M |
| HRT FINANCIAL LP | Reduced | 3.7M | 568.8K | -3.1M |
| SEGALL BRYANT & HAMILL, LLC | New | 0 | 2.8M | +2.8M |
| TWO SIGMA INVESTMENTS, LP | New | 0 | 2.6M | +2.6M |
| Quadrature Capital Ltd | Increased | 23.1K | 2.4M | +2.4M |
| CANADA PENSION PLAN INVESTMENT BOARD | New | 0 | 2.3M | +2.3M |
| JPMORGAN CHASE & CO | Reduced | 4.7M | 2.5M | -2.2M |
| UBS Group AG | Reduced | 7.6M | 5.6M | -2.0M |
| WOLVERINE ASSET MANAGEMENT LLC | New | 0 | 1.7M | +1.7M |
| MORGAN STANLEY | Increased | 5.2M | 6.8M | +1.5M |
| TUDOR INVESTMENT CORP ET AL | Increased | 126.7K | 1.5M | +1.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 2.1M | 3.3M | +1.2M |
| Alberta Investment Management Corp | New | 0 | 1.2M | +1.2M |
| RENAISSANCE TECHNOLOGIES LLC | New | 0 | 1.1M | +1.1M |
| GOLDMAN SACHS GROUP INC | Reduced | 6.0M | 5.0M | -1.1M |
| BANK OF AMERICA CORP /DE/ | Increased | 5.1M | 6.1M | +1.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 26.4M | 27.4M | +960.5K |
| CITADEL ADVISORS LLC | Reduced | 964.6K | 33.3K | -931.4K |
| Balyasny Asset Management L.P. | Increased | 231.4K | 1.1M | +902.9K |
| MARSHALL WACE, LLP | Sold Out | 873.1K | 0 | -873.1K |
| IMC-Chicago, LLC | Reduced | 1.1M | 286.8K | -821.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.