5 of the 18 tracked hedge funds hold MARA (MARA HOLDINGS INC) in their latest 13F filing. Combined position: $71.4M.
| Fund | Shares | Position | This quarter |
|---|---|---|---|
| Ken Griffin (Citadel) | 2.57M | $35.7M | added |
| Jim Simons (Renaissance) | 1.11M | $15.4M | NEW this Q |
| Ken Griffin (Citadel) | 9.43M | $10.5M | added |
| Ken Griffin (Citadel) | 486.4K | $6.8M | added |
| Ken Griffin (Citadel) | 3.00M | $3.0M | NEW this Q |
Sold out, added to, or brand-new position — email you within minutes of the 13F filing.
← all whales · ← biggest moves this quarter
Data from SEC EDGAR quarterly 13F-HR filings. 13F filings are due 45 days after quarter end and reflect equity positions only (no shorts, no options, no non-US listings). By law they lag reality by up to 6 weeks — treat as historical, not real-time.