MARA · MARA Holdings, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 435 13F filersWho Holds MARA
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 416 filers, like-for-like change +13.1%; actively managed books +22.8%; index-like books +4.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 35.5% | 217 | +20.4% |
| Exempt adviser | 0.1% | 4 | -73.9% |
| Adviser | 1.3% | 9 | -44.5% |
| Bank | 14.8% | 22 | -3.5% |
| Insurer | 0.8% | 3 | +0.6% |
| Broker-dealer | 0.2% | 2 | -54.5% |
| Benefit plan | 0.2% | 4 | +3.5% |
| Non-US | 3.6% | 12 | +340.9% |
| Holding company | 27.3% | 9 | +6.7% |
| Registered fund | 0.0% | 0 | — |
| Unknown | 16.0% | 134 | +24.7% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 49.4% | 38 | +4.8% |
| Systematic-like | 7.6% | 28 | +239.1% |
| Concentrated | 1.9% | 68 | -22.2% |
| Diversified active | 41.1% | 282 | +11.5% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 55.2% | 247 | +7.3% |
| Medium turnover | 14.8% | 86 | +20.3% |
| High turnover | 10.9% | 46 | +75.4% |
| Unknown | 19.2% | 37 | +3.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 21.0% | 53 | +5.7% |
| Medium horizon | 28.8% | 78 | +5.6% |
| Long horizon | 46.5% | 265 | +19.6% |
| Unknown | 3.7% | 20 | +52.9% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.3% | 109 | -51.7% |
| $1B to $10B | 4.2% | 123 | +94.7% |
| $10B to $100B | 14.7% | 119 | +20.2% |
| $100B or more | 79.8% | 65 | +10.6% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.6% | 141 | +14.4% |
| Pooled investment vehicles | 4.2% | 26 | +104.4% |
| Registered funds and BDCs | 27.0% | 22 | +10.1% |
| Pension and profit sharing plans | 0.0% | 2 | -36.2% |
| Insurance companies | 0.3% | 3 | -0.1% |
| Governments and sovereign funds | 0.5% | 3 | -4.6% |
| Corporations | 0.0% | 2 | 0.0% |
| Other investment advisers | 0.1% | 5 | +11.4% |
| Other | 0.1% | 2 | -0.7% |
| Diversified | 1.9% | 11 | +170.4% |
| Unknown | 64.5% | 199 | +9.6% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 5.4% | 36 | +70.1% |
| Private equity funds | 0.3% | 12 | +15.2% |
| Venture capital funds | 0.0% | 1 | -85.8% |
| Real estate funds | 0.1% | 6 | +30.4% |
| Liquidity funds | 0.0% | 1 | -0.5% |
| Securitized asset funds | 0.2% | 1 | -9.6% |
| Other private funds | 3.7% | 17 | +256.9% |
| Mixed private funds | 0.2% | 2 | +12.6% |
| Private funds, type not stated | 1.3% | 4 | -2.5% |
| No private funds | 24.5% | 141 | +4.2% |
| Unknown | 64.4% | 195 | +10.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 87.2% | 344 | +11.6% |
| Outside the US | 12.8% | 71 | +24.7% |
| Unknown | 0.0% | 1 | 0.0% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 6 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
416 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 78.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies MARA's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not MARA, quarter ended Jun 30, 2026Found through its holder-overlap peers: RIOT, BMNR, GLXY, GME, MSTR, UPST, IPGP, OKLO, CLSK, IREN, HIMS, SMCI, CRCL, SMR, LEU, FIGR, QBTS, CRDO, HOOD, PL. 2,287 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Capital International Investors Adviser, Diversified active | $3,618,872,071 2 held | MSTR, HOOD |
| 2 | JANE STREET GROUP, LLC Unknown, Diversified active | $3,040,395,684 16 held | SMCI, RIOT, CRDO |
| 3 | NORGES BANK Non-US, Index-like | $2,859,753,792 15 held | HOOD, MSTR, IREN |
| 4 | Newlands Management Operations LLC Unknown, Concentrated | $2,422,650,480 1 held | HOOD |
| 5 | Point72 Asset Management, L.P. Registered adviser, Systematic-like | $2,105,980,474 9 held | CRDO, SMCI, RIOT |
| 6 | Sumitomo Mitsui Trust Group, Inc. Bank, Index-like | $1,294,091,931 10 held | HOOD, CRCL, IPGP |
| 7 | MARSHALL WACE, LLP Exempt adviser, Systematic-like | $1,275,296,159 16 held | HOOD, SMCI, CRCL |
| 8 | Alphabet Inc. Unknown, Concentrated | $1,167,795,825 1 held | PL |
| 9 | Capital Research Global Investors Adviser, Diversified active | $1,099,532,885 4 held | GLXY, CRDO, MSTR |
| 10 | Situational Awareness LP Registered adviser, Concentrated | $1,080,066,369 3 held | RIOT, IREN, CLSK |
Fund Ownership of MARA by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 31.41% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 4.85% | 18,728,600 |
| Index ETFs | 26.56% | 102,611,064 |
| Active ETFs | 1.05% | 4,046,251 |
| Active funds | 1.72% | 6,632,210 |
| Unclassified | 0.27% | 1,023,651 |
| All registered funds | 34.44% | 133,041,776 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $890,288,472 | 16.94% | 64,095,643 | Shares | 2026-08-07 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $380,584,972 | 7.24% | 27,399,926 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $229,805,535 | 4.37% | 16,544,675 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $220,875,251 | 4.20% | 15,901,746 | Shares | 2026-09-22 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $183,289,662 | 3.49% | 13,195,800 | Put | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $177,733,662 | 3.38% | 12,795,800 | Call | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $151,024,816 | 2.87% | 10,872,917 | Shares | 2026-08-12 | |
| Mega D. E. Shaw & Co., Inc. | $144,123,598 | 2.74% | 10,376,069 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $141,557,157 | 2.69% | 10,191,300 | Call | 2026-08-14 | |
| Large Marex Group plc | $110,467,279 | 2.10% | 7,953,008 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC Registered adviser | $108,379,503 | 2.06% | 7,802,700 | Put | 2026-08-10 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $102,612,375 | 1.95% | 7,387,500 | Call | 2026-09-02 | |
| Mega MORGAN STANLEY Holding company | $93,991,695 | 1.79% | 6,766,861 | Shares | 2026-08-13 | |
| Large Tidal Investments LLC Registered adviser | $88,639,035 | 1.69% | 6,381,500 | Call | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $84,737,082 | 1.61% | 6,100,582 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $77,493,072 | 1.47% | 5,579,055 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $72,455,796 | 1.38% | 5,216,400 | Put | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $69,143,710 | 1.32% | 4,977,949 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $65,670,850 | 1.25% | 4,727,923 | Shares | 2026-08-14 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $62,687,692 | 1.19% | 4,513,153 | Shares | 2026-08-11 | |
| Mega D. E. Shaw & Co., Inc. | $57,764,343 | 1.10% | 4,158,700 | Call | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $51,421,444 | 0.98% | 3,702,048 | Shares | 2026-08-13 | |
| Mega VAN ECK ASSOCIATES CORP Registered adviser | $48,251,039 | 0.92% | 3,473,797 | Shares | 2026-08-14 | |
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US | $46,598,588 | 0.89% | 3,354,830 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $46,337,400 | 0.88% | 3,336,026 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $45,331,404 | 0.86% | 3,263,600 | Put | 2026-09-02 | |
| Small DLD Asset Management, LP Registered adviser | $39,455,934 | 0.75% | 2,840,600 | Put | 2026-08-13 | |
| Mid WHITEBOX ADVISORS LLC Registered adviser | $39,329,535 | 0.75% | 2,831,500 | Put | 2026-08-14 | |
| Mid SEGALL BRYANT & HAMILL, LLC Registered adviser | $38,283,298 | 0.73% | 2,756,177 | Shares | 2026-08-12 | |
| Mega Bank of New York Mellon Corp Bank | $37,285,671 | 0.71% | 2,684,354 | Shares | 2026-08-06 | |
| Large Clear Street Group Inc. | $36,855,726 | 0.70% | 2,653,400 | Shares | 2026-08-12 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $35,683,937 | 0.68% | 2,569,038 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $35,010,245 | 0.67% | 2,520,536 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO Bank | $34,612,766 | 0.66% | 2,491,920 | Shares | 2026-08-12 | |
| Large Quadrature Capital Ltd | $33,230,074 | 0.63% | 2,392,374 | Shares | 2026-08-07 | |
| Mega CANADA PENSION PLAN INVESTMENT BOARD Non-US | $32,199,798 | 0.61% | 2,318,200 | Shares | 2026-08-14 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $25,596,866 | 0.49% | 1,842,827 | Shares | 2026-08-04 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $25,227,128 | 0.48% | 1,816,208 | Shares | 2026-08-14 | |
| Large Public Sector Pension Investment Board Non-US | $25,205,905 | 0.48% | 1,814,680 | Shares | 2026-08-13 | |
| Large Vident Advisory, LLC Registered adviser | $25,041,417 | 0.48% | 1,802,838 | Shares | 2026-08-12 | |
| Large Parallax Volatility Advisers, L.P. Registered adviser | $24,224,160 | 0.46% | 1,744,000 | Put | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $23,779,484 | 0.45% | 1,711,986 | Shares | 2026-08-14 | |
| Mega BARCLAYS PLC Bank | $23,641,209 | 0.45% | 1,702,031 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC Registered adviser | $23,532,535 | 0.45% | 1,694,207 | Shares | 2026-08-10 | |
| Small Bitwise Funds Trust Registered adviser | $22,576,610 | 0.43% | 1,625,386 | Shares | 2026-08-11 | |
| Large EXCHANGE TRADED CONCEPTS, LLC Registered adviser | $21,189,625 | 0.40% | 1,525,531 | Shares | 2026-08-11 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $20,551,143 | 0.39% | 1,479,564 | Shares | 2026-08-14 | |
| Large Walleye Trading LLC | $20,546,088 | 0.39% | 1,479,200 | Call | 2026-08-03 | |
| Large Point72 Asset Management, L.P. Registered adviser | $20,362,740 | 0.39% | 1,466,000 | Call | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $19,237,650 | 0.37% | 1,385,000 | Put | 2026-08-14 | |
| Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser | $18,523,301 | 0.35% | 1,333,571 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $17,659,881 | 0.34% | 1,271,410 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $17,112,799 | 0.33% | 1,232,023 | Shares | 2026-08-14 | |
| Large Alberta Investment Management Corp Non-US | $16,836,069 | 0.32% | 1,212,100 | Shares | 2026-08-06 | |
| Large Tidal Investments LLC Registered adviser | $16,000,474 | 0.30% | 1,151,942 | Shares | 2026-08-13 | |
| Large Balyasny Asset Management L.P. Registered adviser | $15,754,732 | 0.30% | 1,134,250 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $15,502,474 | 0.29% | 1,116,089 | Shares | 2026-08-11 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $15,444,818 | 0.29% | 1,111,938 | Shares | 2026-08-13 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $15,106,764 | 0.29% | 1,087,600 | Put | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $14,719,204 | 0.28% | 1,059,698 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $14,263,807 | 0.27% | 1,026,912 | Shares | 2026-08-11 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $14,228,929 | 0.27% | 1,024,401 | Shares | 2026-08-12 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $13,509,075 | 0.26% | 972,576 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $12,552,975 | 0.24% | 903,742 | Shares | 2026-08-07 | |
| Mega CITIGROUP INC Bank | $12,534,140 | 0.24% | 902,386 | Shares | 2026-08-03 | |
| Mega CITIGROUP INC Bank | $12,381,546 | 0.24% | 891,400 | Call | 2026-08-03 | |
| Large CAPSTONE INVESTMENT ADVISORS, LLC Registered adviser | $11,723,160 | 0.22% | 844,000 | Put | 2026-08-17 | |
| Large NOMURA HOLDINGS INC | $11,716,215 | 0.22% | 843,500 | Call | 2026-08-14 | |
| Mega Legal & General Group Plc | $10,518,229 | 0.20% | 757,252 | Shares | 2026-08-14 | |
| Large Tidal Investments LLC Registered adviser | $10,435,557 | 0.20% | 751,300 | Put | 2026-08-13 | |
| Large Walleye Trading LLC | $10,060,527 | 0.19% | 724,300 | Put | 2026-08-03 | |
| Mega Swiss National Bank | $9,807,729 | 0.19% | 706,100 | Shares | 2026-08-11 | |
| Mega CITIGROUP INC Bank | $9,306,300 | 0.18% | 670,000 | Put | 2026-08-03 | |
| Mid Jump Financial, LLC | $9,018,122 | 0.17% | 649,253 | Shares | 2026-08-13 | |
| Mid OCCUDO QUANTITATIVE STRATEGIES LP Registered adviser | $8,811,482 | 0.17% | 634,376 | Shares | 2026-08-13 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $8,609,309 | 0.16% | 619,821 | Shares | 2026-08-13 | |
| Large Man Group plc | $8,348,792 | 0.16% | 601,065 | Shares | 2026-08-14 | |
| Large CAPITAL FUND MANAGEMENT S.A. | $8,299,275 | 0.16% | 597,500 | Call | 2026-08-13 | |
| Large Walleye Capital LLC Registered adviser | $8,069,187 | 0.15% | 580,935 | Shares | 2026-08-03 | |
| Large PEAK6 LLC Broker-dealer | $7,945,080 | 0.15% | 572,000 | Put | 2026-08-13 | |
| Large HRT FINANCIAL LP | $7,901,104 | 0.15% | 568,834 | Shares | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $7,447,818 | 0.14% | 536,200 | Call | 2026-08-14 | |
| Large BESSEMER GROUP INC | $7,314,998 | 0.14% | 526,688 | Shares | 2026-08-12 | |
| Mega DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $7,282,178 | 0.14% | 524,275 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $7,137,945 | 0.14% | 513,891 | Shares | 2026-08-14 | |
| Large Parallax Volatility Advisers, L.P. Registered adviser | $6,999,171 | 0.13% | 503,900 | Call | 2026-08-14 | |
| Mid Edgestream Partners, L.P. | $6,902,024 | 0.13% | 496,906 | Shares | 2026-08-11 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $6,756,096 | 0.13% | 486,400 | Put | 2026-08-14 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $6,708,424 | 0.13% | 482,968 | Shares | 2026-08-12 | |
| Large Caption Management, LLC Registered adviser | $6,389,400 | 0.12% | 460,000 | Call | 2026-08-14 | |
| Large Alphadyne Asset Management LP Registered adviser | $6,196,329 | 0.12% | 446,100 | Put | 2026-08-14 | |
| Small Headlands Technologies LLC | $6,177,660 | 0.12% | 444,756 | Shares | 2026-08-13 | |
| Mid Sculptor Capital LP Registered adviser | $6,175,494 | 0.12% | 444,600 | Put | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $6,158,048 | 0.12% | 443,344 | Shares | 2026-08-14 | |
| Large PEAK6 LLC Broker-dealer | $6,035,205 | 0.11% | 434,500 | Call | 2026-08-13 | |
| Small COMPASS FINANCIAL MANAGEMENT LLC Registered adviser | $6,000,077 | 0.11% | 431,971 | Shares | 2026-08-12 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $5,956,461 | 0.11% | 428,831 | Shares | 2026-08-13 | |
| Large LMR Partners LLP Exempt adviser | $5,924,085 | 0.11% | 426,500 | Put | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $5,704,650 | 0.11% | 410,702 | Shares | 2026-08-07 | |
| Mega BARCLAYS PLC Bank | $5,694,900 | 0.11% | 410,000 | Call | 2026-08-14 |
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