MARA Holdings, Inc.
BG ˙ BUL ˙ US5657881067
SecurityBG:M44 / MARA Holdings, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership5,029 shares
Latest Disclosed Value $ 41,031
Advisor Group Holdings, Inc. reports 32.94% increase in ownership of M44 / MARA Holdings, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 5,029 shares of MARA Holdings, Inc. (BG:M44) valued at $41,031 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,783 shares of MARA Holdings, Inc.. This represents a change in shares of 32.94% 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.

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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)
2026-05-15 2026-03-31 13F MARA HOLDINGS COM 565788106 5,029 1,246 32.94 41 24.24 0.0000
2026-02-17 2025-12-31 13F MARA HOLDINGS COM 565788106 3,783 -1,704 -31.06 34 -66.33 0.0000
2025-11-14 2025-09-30 13F MARA HOLDINGS COM 565788106 5,487 671 13.93 98 30.67 0.0001
2025-09-04 2025-06-30 13F/A-1 MARA HOLDINGS COM 565788106 4,816 1,340 38.55 76 92.31 0.0001
2025-08-13 2025-06-30 13F MARA HOLDINGS COM 565788106 3,057 -419 48 0.0001
2025-05-12 2025-03-31 13F MARA HOLDINGS COM 565788106 3,476 1,980 132.35 40 178.57 0.0001
2025-06-06 2024-12-31 13F/A-1 MARA HOLDINGS COM 565788106 1,496 -25,201 -94.40 15 -96.77 0.0000
2025-02-07 2024-12-31 13F MARA HOLDINGS COM 565788106 1,399 -25,298 13 0.0000
2024-11-13 2024-09-30 13F MARA HOLDINGS COM 565788106 26,697 -77 -0.29 433 -18.46 0.0010
2024-08-13 2024-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 26,774 -303 -1.12 531 -13.09 0.0013
2024-05-10 2024-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 27,077 -2,802 -9.38 611 -12.84 0.0014
2024-02-12 2023-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 29,879 25,342 558.56 702 1,744.74 0.0012
2023-11-13 2023-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 4,537 -3,139 -40.89 39 -66.96 0.0001
2023-08-21 2023-06-30 13F/A-1 MARATHON DIGITAL HOLDINGS IN COM 565788106 7,676 762 11.02 116 91.67 0.0002
2023-08-10 2023-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 7,676 762 116 0.0000
2023-05-12 2023-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 6,914 -439 -5.97 61 140.00 0.0001
2023-02-10 2022-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 7,353 2,984 68.30 25 -46.81 0.0001
2022-11-14 2022-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 4,369 -1,772 -28.86 47 38.24 0.0001
2022-08-10 2022-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 6,141 -1,727 -21.95 34 -75.54 0.0001
2022-05-04 2022-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 7,868 196 2.55 139 -44.84 0.0003
2022-02-03 2021-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 7,672 4,046 111.58 252 119.13 0.0005
2021-11-05 2021-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 3,626 1,894 109.35 115 112.96 0.0002
2021-08-02 2021-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 1,732 -853 -33.00 54 -56.80 0.0001
2021-05-13 2021-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 2,585 -11,870 -82.12 125 -16.67 0.0003
2021-02-10 2020-12-31 13F MARATHON PATENT GROUP COM 56585W401 14,455 13,136 995.91 150 4,900.00 0.0004
2020-11-12 2020-09-30 13F MARATHON PATENT GROUP COM 56585W401 1,319 1,180 848.92 3 -98.00 0.0000
2020-08-14 2020-06-30 13F MARATHON PATENT GROUP COM 56585W401 139 0 0.00 0 -100.00 0.0000
2020-05-18 2020-03-31 13F MARATHON PATENT GROUP COM 56585W401 139 139 0 0.0000
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.