MARA · Insider trading · 13F holders · Congress trades
MARA Holdings, Inc. (MARA)
Who is buying and selling MARA: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 12
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $1.5M
- Congress trades, 12 months
- 0
MARA at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 3 MARA insiders filed 8 sales worth $1.5M on SEC Form 4, and no open-market purchases; 8 of the sales were pre-planned under Rule 10b5-1.
- 12 13F filers hold MARA among their 50 largest positions, worth $222.0M combined. The biggest bets by portfolio weight are Bitwise Funds Trust (5.3%), X Advisors, LLC (4.8%) and Wolverine Asset Management LLC (0.8%).
- No member of Congress has disclosed a trade in MARA.
- MARA last closed at $7.17 on Oct 29, 2026.
MARA insider trading
Between Aug 1, 2026 and Oct 29, 2026, 3 MARA insiders filed 8 sales worth $1.5M on SEC Form 4, and no open-market purchases; 8 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 21, 2026 | Khan Salman Hassan | Chief Financial Officer | Sale10b5-1 | 16,000 | $7.88 | $126K | SEC |
| Oct 2, 2026 | Thiel Frederick G | Chief Executive Officer, Director | Sale10b5-1 | 27,505 | $11.22 | $309K | SEC |
| Sep 18, 2026 | Thiel Frederick G | Chief Executive Officer, Director | Sale10b5-1 | 27,505 | $11.45 | $315K | SEC |
| Sep 18, 2026 | Khan Salman Hassan | Chief Financial Officer | Sale10b5-1 | 16,000 | $11.45 | $183K | SEC |
| Sep 18, 2026 | Nowaid Zabi | General Counsel | Sale10b5-1 | 8,376 | $12.10 | $101K | SEC |
| Aug 21, 2026 | Nowaid Zabi | General Counsel | Sale10b5-1 | 8,376 | $12.00 | $101K | SEC |
| Aug 19, 2026 | Thiel Frederick G | Chief Executive Officer, Director | Sale10b5-1 | 27,505 | $9.21 | $253K | SEC |
| Aug 19, 2026 | Khan Salman Hassan | Chief Financial Officer | Sale10b5-1 | 16,000 | $9.21 | $147K | SEC |
Who owns MARA? Hedge funds and superinvestors
12 13F filers hold MARA among their 50 largest positions, worth $222.0M combined. The biggest bets by portfolio weight are Bitwise Funds Trust (5.3%), X Advisors, LLC (4.8%) and Wolverine Asset Management LLC (0.8%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Marex Group LtdInvestment manager | 0.8% | $110.5M | 7,953,008 | -4.4% shares | Q2 2026 |
| Segall Bryant & Hamill, LLCInstitutional asset manager | 0.5% | $38.3M | 2,756,177 | — | Q2 2026 |
| Wolverine Asset Management LLCHedge fund | 0.8% | $23.5M | 1,694,207 | — | Q2 2026 |
| Bitwise Funds TrustAsset manager | 5.3% | $22.6M | 1,625,386 | — | Q2 2026 |
| Occudo Quantitative Strategies LPHedge fund | 0.5% | $8.8M | 634,376 | — | Q2 2026 |
| Headlands Technologies LLCInvestment manager | 0.7% | $6.2M | 444,756 | — | Q2 2026 |
| Compass Financial Management LLCWealth manager | 0.7% | $6.0M | 431,971 | — | Q2 2026 |
| Second Line Capital, LLCWealth manager | 0.7% | $3.6M | 258,225 | -2.1% shares | Q2 2026 |
| GMT Capital CorpHedge fund | 0.1% | $1.2M | 83,800 | — | Q2 2026 |
| X Advisors, LLCWealth manager | 4.8% | $738K | 56,989 | — | Q2 2026 |
| Chokshi & Queen Wealth Advisors, IncWealth manager | 0.2% | $506K | 36,400 | — | Q2 2026 |
| Fortress Investment Group LLCHedge fund | 0.0% | $195K | 14,056 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 12). Screen MARA in the grand portfolio →
MARA stock trades by members of Congress
No member of Congress has disclosed a trade in MARA.
MARA questions and answers
Are insiders buying MARA stock?
Between Aug 1, 2026 and Oct 29, 2026, 3 MARA insiders filed 8 sales worth $1.5M on SEC Form 4, and no open-market purchases; 8 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own MARA?
12 13F filers hold MARA among their 50 largest positions, worth $222.0M combined. The biggest bets by portfolio weight are Bitwise Funds Trust (5.3%), X Advisors, LLC (4.8%) and Wolverine Asset Management LLC (0.8%).
Has Congress traded MARA?
No member of Congress has disclosed a trade in MARA.
Who is the largest holder of MARA?
Among 13F filers, Marex Group Ltd reports the largest MARA position, $110.5M (7,953,008 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Bitwise Funds Trust's: 5.3% of its portfolio.
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