MARA Holdings, Inc.
BG ˙ BUL ˙ US5657881067
SecurityBG:M44 / MARA Holdings, Inc.
InstitutionPeak6 Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Peak6 Llc ownership in M44 / MARA Holdings, Inc.

On May 14, 2026 - Peak6 Llc filed a 13F-HR form disclosing ownership of 0 shares of MARA Holdings, Inc. (BG:M44) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 12, 2026 disclosing 61,559 shares of MARA Holdings, Inc.. This represents a change in shares of -100.00% during the quarter.

Peak6 Llc 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 434,500 of underlying shares valued at $3,545,520 USD and put options representing 79,800 of underlying shares valued at $651,168 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)
2026-05-14 2026-03-31 13F MARA HOLDINGS COM 565788106 0 -61,559 -100.00 0 -100.00
2026-03-12 2025-12-31 13F/A-1 MARA HOLDINGS COM 565788106 61,559 54,030 717.63 553 302.92 0.0010
2026-02-13 2025-12-31 13F MARA HOLDINGS COM 565788106 61,559 54,030 553
2026-03-30 2025-09-30 13F/A-1 MARA HOLDINGS COM 565788106 7,529 7,529 137 0.0002
2025-11-14 2025-09-30 13F MARA HOLDINGS COM 565788106 7,529 7,529 137 0.0002
2026-03-26 2025-06-30 13F/A-2 MARA HOLDINGS COM 565788106 0 -231,134 -100.00 0 -100.00
2025-11-13 2025-06-30 13F/A-1 MARA HOLDINGS COM 565788106 0 -231,134 0
2025-08-14 2025-06-30 13F MARA HOLDINGS COM 565788106 0 -231,134 0
2025-05-14 2025-03-31 13F MARA HOLDINGS COM 565788106 231,134 231,134 2,658 0.0060
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
(%)
2026-05-14 2026-03-31 13F MARA HOLDINGS COM Call 434,500 -32.30 3,546 -38.49 n/a n/a n/a
2026-03-12 2025-12-31 13F/A MARA HOLDINGS COM Call 641,800 -31.72 5,763 -66.42 n/a n/a n/a
2026-02-13 2025-12-31 13F MARA HOLDINGS COM Call 641,800 5,763 n/a n/a n/a
2026-03-30 2025-09-30 13F/A MARA HOLDINGS COM Call 939,900 -30.02 17,163 -18.51 n/a n/a n/a
2025-11-14 2025-09-30 13F MARA HOLDINGS COM Call 939,900 17,163 n/a n/a n/a
2025-11-13 2025-06-30 13F/A MARAHOLDINGSINC COM Call 1,343,100 21,060 n/a n/a n/a
2026-03-26 2025-06-30 13F/A MARAHOLDINGSINC COM Call 1,343,100 -7.96 21,060 25.49 n/a n/a n/a
2025-08-14 2025-06-30 13F MARAHOLDINGSINC COM Call 1,343,100 21,060 n/a n/a n/a
2025-05-14 2025-03-31 13F MARA HOLDINGS COM Call 1,459,300 81.84 16,782 24.70 n/a n/a n/a
2025-02-13 2024-12-31 13F MARA HOLDINGS COM Call 802,500 13,458 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
(%)
2026-05-14 2026-03-31 13F MARA HOLDINGS COM Put 79,800 -71.98 651 -74.54 n/a n/a n/a
2026-03-12 2025-12-31 13F/A MARA HOLDINGS COM Put 284,800 -38.05 2,558 -69.54 n/a n/a n/a
2026-02-13 2025-12-31 13F MARA HOLDINGS COM Put 284,800 2,558 n/a n/a n/a
2026-03-30 2025-09-30 13F/A MARA HOLDINGS COM Put 459,700 -22.57 8,394 -9.83 n/a n/a n/a
2025-11-14 2025-09-30 13F MARA HOLDINGS COM Put 459,700 8,394 n/a n/a n/a
2025-11-13 2025-06-30 13F/A MARAHOLDINGSINC COM Put 593,700 9,309 n/a n/a n/a
2026-03-26 2025-06-30 13F/A MARAHOLDINGSINC COM Put 593,700 -37.56 9,309 -14.87 n/a n/a n/a
2025-08-14 2025-06-30 13F MARAHOLDINGSINC COM Put 593,700 9,309 n/a n/a n/a
2025-05-14 2025-03-31 13F MARA HOLDINGS COM Put 950,900 -27.11 10,935 -50.01 n/a n/a n/a
2025-02-13 2024-12-31 13F MARA HOLDINGS COM Put 1,304,500 21,876 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.