Mara Holdings, Inc.: which funds bought and sold
Institutions that bought and sold Mara Holdings shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 229 institutions that filed 13F reports for both quarters added to or opened positions in Mara Holdings, and 169 cut or closed them. Together they added a net 32.4M shares, +13.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 16.1M shares (+127.3%); index fund managers were net buyers of 7.7M shares (+5.5%). 78 opened a new position and 57 sold out entirely.
Bought, Q2 2026 229 institutions, 78 of them new holders Sold, Q2 2026 169 institutions, 57 of them sold out
Net change, all compared +32.4M shares (+13.2%)
Net change, active managers +16.1M shares (+127.3%), 30 bought, 13 sold
Buyers versus sellers
229 bought 58 169 sold
Active managers and hedge funds 30 bought · 13 sold · +16.1M
Index fund managers 9 bought · 3 sold · +7.7M
Other institutions 190 bought · 153 sold · +8.6M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| D. E. Shaw & Co., Inc. Hedge fund | +9.1M +687.2% | 10.4M | $144M |
| Dimensional Fund Advisors LP | +4.4M +4229.1% | 4.5M | $62.7M |
| Blackrock, Inc. Index funds | +4.3M +7.2% | 64.1M | $890M |
| Healthcare Of Ontario Pension Plan Trust Fund | +3.4M New position | 3.4M | $46.6M |
| Segall Bryant & Hamill, LLC Active manager | +2.8M New position | 2.8M | $38.3M |
| Two Sigma Investments, LP Hedge fund | +2.6M New position | 2.6M | $35.7M |
| Quadrature Capital Ltd Hedge fund | +2.4M +10271.4% | 2.4M | $33.2M |
| Canada Pension Plan Investment Board | +2.3M New position | 2.3M | $32.2M |
| Wolverine Asset Management LLC | +1.7M New position | 1.7M | $23.5M |
| Morgan Stanley | +1.5M +29.6% | 6.8M | $94M |
| Tudor Investment Corp Et Al Hedge fund | +1.4M +1067.5% | 1.5M | $20.6M |
| Susquehanna International Group, LLP | +1.2M +57.3% | 3.3M | $46.3M |
| Alberta Investment Management Corp | +1.2M New position | 1.2M | $16.8M |
| Renaissance Technologies LLC Hedge fund | +1.1M New position | 1.1M | $15.4M |
| Bank Of America Corp | +1.0M +19.9% | 6.1M | $84.7M |
| Vanguard Portfolio Management LLC Index funds | +961K +3.6% | 27.4M | $381M |
| Balyasny Asset Management L.P. Hedge fund | +903K +390.2% | 1.1M | $15.8M |
| State Street Corp Index funds | +682K +4.5% | 15.9M | $221M |
| Occudo Quantitative Strategies LP | +634K New position | 634K | $8.8M |
| Jump Financial, LLC | +633K +3991.3% | 649K | $9M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| D. E. Shaw & Co., Inc. Hedge fund | +9.1M +687.2% | 10.4M | $144M |
| Segall Bryant & Hamill, LLC Active manager | +2.8M New position | 2.8M | $38.3M |
| Two Sigma Investments, LP Hedge fund | +2.6M New position | 2.6M | $35.7M |
| Quadrature Capital Ltd Hedge fund | +2.4M +10271.4% | 2.4M | $33.2M |
| Tudor Investment Corp Et Al Hedge fund | +1.4M +1067.5% | 1.5M | $20.6M |
| Renaissance Technologies LLC Hedge fund | +1.1M New position | 1.1M | $15.4M |
| Balyasny Asset Management L.P. Hedge fund | +903K +390.2% | 1.1M | $15.8M |
| Millennium Management LLC Hedge fund | +611K +98.5% | 1.2M | $17.1M |
| AQR Capital Management LLC Hedge fund | +540K +125.0% | 973K | $13.5M |
| Winton Group Ltd Hedge fund | +255K New position | 255K | $3.5M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Capital Research Global Investors Active manager | −3.3M Sold out | 0 | — |
| HRT Financial LP | −3.1M −84.5% | 569K | $7.9M |
| Jpmorgan Chase & Co | −2.2M −46.7% | 2.5M | $35.2M |
| UBS Group AG | −2.0M −26.8% | 5.6M | $77.5M |
| Goldman Sachs Group Inc | −1.1M −17.5% | 5.0M | $69.1M |
| Citadel Advisors LLC Hedge fund | −931K −96.6% | 33K | $462,106 |
| Marshall Wace, LLP Hedge fund | −873K Sold out | 0 | — |
| Imc-Chicago, LLC | −822K −74.1% | 287K | $4M |
| Marathon Trading Investment Management LLC | −730K Sold out | 0 | — |
| HSBC Holdings PLC | −634K Sold out | 0 | — |
| Delta Global Management LP | −621K Sold out | 0 | — |
| LPL Financial LLC | −584K −58.7% | 411K | $5.7M |
| Compass Rose Asset Management, LP | −520K Sold out | 0 | — |
| Exchange Traded Concepts, LLC | −431K −22.0% | 1.5M | $21.2M |
| Focus Partners Wealth | −367K −95.9% | 16K | $215,765 |
| Marex Group Ltd | −362K −4.4% | 8.0M | $110M |
| Wellington Management Group LLP Active manager | −350K Sold out | 0 | — |
| Invesco Ltd. | −334K −20.8% | 1.3M | $17.7M |
| Banco Bilbao Vizcaya Argentaria, S.A. | −320K −48.1% | 345K | $4.7M |
| Havemeyer Place LP | −313K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Capital Research Global Investors Active manager | −3.3M Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −931K −96.6% | 33K | $462,106 |
| Marshall Wace, LLP Hedge fund | −873K Sold out | 0 | — |
| Wellington Management Group LLP Active manager | −350K Sold out | 0 | — |
| Exoduspoint Capital Management, LP Hedge fund | −285K Sold out | 0 | — |
| Sona Asset Management (US) LLC Active manager | −230K Sold out | 0 | — |
| Intech Investment Management LLC Active manager | −223K −66.6% | 112K | $1.6M |
| Quantbot Technologies LP Hedge fund | −211K −56.3% | 164K | $2.3M |
| Capstone Investment Advisors, LLC Hedge fund | −144K Sold out | 0 | — |
| Squarepoint Ops LLC Hedge fund | −134K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Healthcare Of Ontario Pension Plan Trust Fund | 3.4M | $46.6M |
| Segall Bryant & Hamill, LLCActive manager | 2.8M | $38.3M |
| Two Sigma Investments, LPHedge fund | 2.6M | $35.7M |
| Canada Pension Plan Investment Board | 2.3M | $32.2M |
| Wolverine Asset Management LLC | 1.7M | $23.5M |
| Alberta Investment Management Corp | 1.2M | $16.8M |
| Renaissance Technologies LLCHedge fund | 1.1M | $15.4M |
| Occudo Quantitative Strategies LP | 634K | $8.8M |
| Allspring Global Investments Holdings, LLC | 429K | $5.7M |
| Winton Group LtdHedge fund | 255K | $3.5M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Capital Research Global InvestorsActive manager | 3.3M | $27.1M |
| Marshall Wace, LLPHedge fund | 873K | $7.1M |
| Marathon Trading Investment Management LLC | 730K | $6M |
| HSBC Holdings PLC | 634K | $5.1M |
| Delta Global Management LP | 621K | $5.1M |
| Compass Rose Asset Management, LP | 520K | $4.2M |
| Wellington Management Group LLPActive manager | 350K | $2.9M |
| Havemeyer Place LP | 313K | $2.6M |
| Exoduspoint Capital Management, LPHedge fund | 285K | $2.3M |
| Sona Asset Management (US) LLCActive manager | 230K | $1.9M |
Who holds the shares
- Institutions reporting
- 407
- Ten largest holders
- 61.2% of 13F-reported shares
- Index fund managers
- 52.4% of 13F-reported shares
- Active managers and hedge funds
- 10.3% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 30 | 13 | 14 | 7 | +16.1M | +127.3% |
| Index fund managers | 9 | 3 | 0 | 1 | +7.7M | +5.5% |
| Other institutions | 190 | 153 | 64 | 49 | +8.6M | +9.2% |