MARA Holdings, Inc.
BG ˙ BUL ˙ US5657881067
SecurityBG:M44 / MARA Holdings, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership7,622,765 shares
Latest Disclosed Value $ 62,201,763
UBS Group AG ownership in M44 / MARA Holdings, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 7,622,765 shares of MARA Holdings, Inc. (BG:M44) valued at $62,201,763 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 9,591,069 shares of MARA Holdings, Inc.. This represents a change in shares of -20.52% during the quarter.

UBS Group AG has a history of taking positions in derivatives of the underlying security (M44) in the form of stock options. The firm currently holds call options representing 50,000 of underlying shares valued at $408,000 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BG:M44 / MARA Holdings, Inc. Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F MARA HOLDINGS COM 565788106 7,622,765 -1,968,304 -20.52 62,202 -27.78 0.0093
2026-01-29 2025-12-31 13F MARA HOLDINGS COM 565788106 9,591,069 -2,507,617 -20.73 86,128 -61.01 0.0140
2025-11-13 2025-09-30 13F MARA HOLDINGS COM 565788106 12,098,686 6,172,110 104.14 220,922 137.73 0.0346
2025-08-14 2025-06-30 13F MARA HOLDINGS COM 565788106 5,926,576 34,421 0.58 92,929 37.14 0.0161
2025-05-13 2025-03-31 13F MARA HOLDINGS COM 565788106 5,892,155 1,651,789 38.95 67,760 -4.71 0.0125
2025-02-14 2024-12-31 13F MARA HOLDINGS COM 565788106 4,240,366 3,938,719 1,305.74 71,111 1,353.60 0.0131
2024-11-14 2024-09-30 13F MARA HOLDINGS COM 565788106 301,647 -161,456 -34.86 4,893 -46.78 0.0011
2024-08-14 2024-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 463,103 -22,713 -4.68 9,193 -16.20 0.0023
2024-05-13 2024-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 485,816 260,940 116.04 10,970 107.67 0.0027
2024-02-09 2023-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 224,876 128,896 134.29 5,282 548.10 0.0016
2023-11-09 2023-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 95,980 -45,805 -32.31 816 -58.52 0.0003
2023-08-11 2023-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 141,785 36,488 34.65 1,965 114.05 0.0007
2023-05-12 2023-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 105,297 82,004 352.05 918 1,062.03 0.0003
2023-02-08 2022-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 23,293 -13,594 -36.85 80 -80.05 0.0000
2022-11-10 2022-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 36,887 16,245 78.70 396 260.00 0.0002
2022-08-10 2022-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 20,642 -20,647 -50.01 110 -90.48 0.0000
2022-05-16 2022-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 41,289 -30,967 -42.86 1,155 -51.35 0.0004
2022-02-14 2021-12-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 72,256 71,381 8,157.83 2,374 8,378.57 0.0007
2021-11-15 2021-09-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 875 -17,017 -95.11 28 -95.01 0.0000
2021-08-13 2021-06-30 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 17,892 -1,448 -7.49 561 -39.55 0.0002
2021-05-12 2021-03-31 13F MARATHON DIGITAL HOLDINGS IN COM 565788106 19,340 19,340 8.09 928 65.42 0.0003
2021-02-11 2020-12-31 13F MARATHON PATENT GROUP COM 56585W401 0 -8,871 -100.00 0 -100.00
2020-11-12 2020-09-30 13F MARATHON PATENT GROUP COM 56585W401 8,871 733 9.01 17 142.86 0.0000
2020-07-31 2020-06-30 13F MARATHON PATENT GROUP COM 56585W401 8,138 8,138 -8.26 7 -58.82 0.0000
2020-05-01 2020-03-31 13F MARATHON PATENT GROUP COM 56585W401 0 -863 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MARATHON PATENT GROUP COM 56585W401 863 863 1 0.0000
2019-11-14 2019-09-30 13F MARATHON PATENT GROUP COM 56585W401 0 -4,548 -100.00 0 -100.00
2019-08-14 2019-06-30 13F MARATHON PATENT GROUP COM 56585W401 4,548 4,548 13 0.0000
2019-05-14 2019-03-31 13F MARATHON PATENT GROUP COM PAR 56585W302 0 -2,043 -100.00 0 -100.00
2019-02-14 2018-12-31 13F MARATHON PATENT GROUP COM PAR 56585W302 2,043 -19,173 -90.37 1 -93.33 0.0000
2018-11-14 2018-09-30 13F MARATHON PATENT GROUP COM PAR 56585W302 21,216 4,132 24.19 15 -6.25 0.0000
2018-08-14 2018-06-30 13F MARATHON PATENT GROUP COM PAR 56585W302 17,084 14,076 467.95 16 433.33 0.0000
2018-05-15 2018-03-31 13F MARATHON PATENT GROUP COM PAR 56585W302 3,008 2,258 301.07 3 0.00 0.0000
2018-02-14 2017-12-31 13F MARATHON PATENT GROUP COM PAR 56585W302 750 750 3 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-05 2026-03-31 13F MARA HOLDINGS COM Call 50,000 408 n/a n/a n/a
2025-11-13 2025-09-30 13F MARA HOLDINGS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F MARA HOLDINGS COM Call 50,000 11.11 784 51.64 n/a n/a n/a
2025-05-13 2025-03-31 13F MARA HOLDINGS COM Call 45,000 350.00 518 209.58 n/a n/a n/a
2025-02-14 2024-12-31 13F MARA HOLDINGS COM Call 10,000 0.00 168 3.09 n/a n/a n/a
2024-11-14 2024-09-30 13F MARA HOLDINGS COM Call 10,000 162 n/a n/a n/a
2024-05-13 2024-03-31 13F MARATHON DIGITAL HOLDINGS IN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F MARATHON DIGITAL HOLDINGS IN COM Call 55,800 -50.53 1,311 36.74 n/a n/a n/a
2023-11-09 2023-09-30 13F MARATHON DIGITAL HOLDINGS IN COM Call 112,800 102.15 959 23.93 n/a n/a n/a
2023-08-11 2023-06-30 13F MARATHON DIGITAL HOLDINGS IN COM Call 55,800 0.00 773 59.05 n/a n/a n/a
2023-05-12 2023-03-31 13F MARATHON DIGITAL HOLDINGS IN COM Call 55,800 0.00 487 155.79 n/a n/a n/a
2023-02-08 2022-12-31 13F MARATHON DIGITAL HOLDINGS IN COM Call 55,800 0.00 191 -68.23 n/a n/a n/a
2022-11-10 2022-09-30 13F MARATHON DIGITAL HOLDINGS IN COM Call 55,800 598 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-13 2025-09-30 13F MARA HOLDINGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F MARA HOLDINGS COM Put 50,000 784 n/a n/a n/a
2025-05-13 2025-03-31 13F MARA HOLDINGS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F MARA HOLDINGS COM Put 20,000 335 n/a n/a n/a
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.