Marathon Digital Holdings, Inc. (MARA) ownership: Top institutional holder: BlackRock, Inc. ($487.77M). Insider activity: Net Buyer (12 buys, 8 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 59775301.00 | $487.77M | 2026-03-31 |
| VANGUARD GROUP INC | 46706277.00 | $419.42M | 2025-12-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 26439424.00 | $215.75M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 16352439.00 | $133.44M | 2026-03-31 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 15239300.00 | $124.35M | 2026-03-31 |
| STATE STREET CORP | 15220168.00 | $124.20M | 2026-03-31 |
| LMR Partners LLP | 10761600.00 | $96.64M | 2025-12-31 |
| WOLVERINE ASSET MANAGEMENT LLC | 11304700.00 | $92.25M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-18 | |
| Buy | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Buy | null | 2026-05-18 | |
| Sell | null | 2026-05-18 | |
| Buy | null | 2026-04-30 | |
| Buy | null | 2026-04-30 | |
| Buy | null | 2026-04-30 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.