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Jim Simons's Marathon Digital Holdings, Inc. (MARA) position

Not anymore: Jim Simons fully exited MARA in Q1 2026. The position peaked at an amount we cannot price in Q1 2021.
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Value at exit
an amount we cannot price
Shares at exit
1.9M
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

MARA price vs Simons's position

Dates
$10.5$11$11.5$12$12.5← Earlier —6 purchases, 3 sells
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Exited −1.9M −100.0% 0 May 14, 2026
Q4 2025 Reduced −1.0M −35.5% 1.9M Feb 12, 2026
Q3 2025 Added +1.1M +59.2% 2.9M Nov 13, 2025
Q2 2025 New +1.8M 1.8M Aug 13, 2025
Q1 2023 New +90K 90K May 12, 2023
Q2 2022 Added +1.2M +297.0% 1.6M Aug 12, 2022
Q1 2022 Reduced −1.0M −70.9% 412K May 13, 2022
Q4 2021 Added +1.3M +871.3% 1.4M Feb 11, 2022
Q3 2021 Reduced −1.5M −91.3% 146K Nov 12, 2021
Q2 2021 Added +101K +6.4% 1.7M Aug 13, 2021
Q1 2021 First covered 1.6M May 13, 2021
Data through Q1 2026 · filed May 14, 2026
11 grouped rows from 11 quarters

More Simons positions

Common questions

Does Jim Simons own MARA?

Not currently. Jim Simons fully exited MARA in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy MARA?

Jim Simons held MARA since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell MARA?

Yes. Jim Simons reduced and then fully exited MARA by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MARA does Jim Simons own?

None as of the latest filing: Jim Simons has exited MARA. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for MARA?

Jim Simons began building the MARA position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.