마라 홀딩스 주식회사
MX ˙ BMV ˙ US5657881067
SecurityMX:MARA / MARA Holdings, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership3,343,201 shares
Latest Disclosed Value $ 27,280,521
Northern Trust Corp reports 7.10% increase in ownership of MARA / MARA Holdings, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 3,343,201 shares of MARA Holdings, Inc. (MX:MARA) valued at $27,280,521 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,121,689 shares of MARA Holdings, Inc.. This represents a change in shares of 7.10% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F MARA HOLDINGS COM 565788106 3,343,201 221,512 7.10 27,281 -2.68 0.0036
2026-02-17 2025-12-31 13F MARA HOLDINGS COM 565788106 3,121,689 -347,676 -10.02 28,033 -55.75 0.0036
2025-11-14 2025-09-30 13F MARA HOLDINGS COM 565788106 3,469,365 184,047 5.60 63,351 22.98 0.0081
2025-08-13 2025-06-30 13F MARA HOLDINGS COM 565788106 3,285,318 -244,464 -6.93 51,514 26.90 0.0071
2025-05-13 2025-03-31 13F MARA HOLDINGS COM 565788106 3,529,782 236,251 7.17 40,592 -26.51 0.0060
2025-02-14 2024-12-31 13F MARA HOLDINGS COM 565788106 3,293,531 504,142 18.07 55,233 22.08 0.0078
2024-11-13 2024-09-30 13F MARA HOLDINGS COM 565788106 2,789,389 398,399 16.66 45,244 -4.67 0.0074
2024-08-14 2024-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 2,390,990 278,701 13.19 47,461 -0.49 0.0080
2024-05-14 2024-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 2,112,289 100,850 5.01 47,695 0.95 0.0082
2024-02-13 2023-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 2,011,439 381,230 23.39 47,249 240.99 0.0086
2023-11-13 2023-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,630,209 39,574 2.49 13,857 -37.15 0.0027
2023-08-11 2023-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,590,635 533,756 50.50 22,046 139.24 0.0042
2023-05-15 2023-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,056,879 9,841 0.94 9,216 157.40 0.0018
2023-02-13 2022-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,047,038 8,572 0.83 3,581 -67.81 0.0008
2022-11-14 2022-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,038,466 78,809 8.21 11,122 117.01 0.0025
2022-08-12 2022-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 959,657 37,676 4.09 5,125 -80.11 0.0011
2022-05-13 2022-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 921,981 -208,270 -18.43 25,768 -30.62 0.0045
2022-02-08 2021-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,130,251 6,374 0.57 37,139 4.64 0.0061
2021-11-15 2021-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,123,877 -27,154 -2.36 35,492 -1.71 0.0063
2021-08-13 2021-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,151,031 985,740 596.37 36,108 354.93 0.0064
2021-05-12 2021-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 165,291 81,671 97.67 7,937 809.16 0.0015
2021-02-11 2020-12-31 13F MARATHON PATENT GROUP COM 56585W401 83,620 49,971 148.51 873 1,222.73 0.0002
2020-11-16 2020-09-30 13F MARATHON PATENT GROUP COM 56585W401 33,649 15,335 83.73 66 288.24 0.0000
2020-08-14 2020-06-30 13F MARATHON PATENT GROUP COM 56585W401 18,314 18,314 -45.57 17 -74.24 0.0000
2019-08-12 2019-06-30 13F MARATHON PATENT GROUP COM 56585W302 0 -15,044 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MARATHON PATENT GROUP COM 56585W302 15,044 0 0.00 8 60.00 0.0000
2019-02-12 2018-12-31 13F MARATHON PATENT GROUP COM 56585W302 15,044 0 0.00 5 -54.55 0.0000
2018-11-14 2018-09-30 13F MARATHON PATENT GROUP COM 56585W302 15,044 0 0.00 11 -21.43 0.0000
2018-09-18 2018-06-30 13F/A-1 MARATHON PATENT GROUP COM 56585W302 15,044 15,044 14 0.0000
2018-08-14 2018-06-30 13F MARATHON PATENT GROUP COM 56585W302 15,044 15,044 14
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.