MARA HOLDINGS INC — institutional ownership

8 funds reported holding MARA HOLDINGS INC in their latest 13F filings, worth $176M in total (CUSIP 565788906).

Largest holders

1. IMC-Chicago, LLC — $87.9M
2. SIMPLEX TRADING, LLC — $35.6M
3. Optiver Holding B.V. — $21.9M
4. GROUP ONE TRADING LLC — $21.6M
5. HRT FINANCIAL LP — $6.71M
6. CMT Capital Markets Trading GmbH — $1.60M
7. CIBC Bancorp USA Inc. — $695K
8. JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $74.4K