About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
MARA Holdings, Inc. (MARA): Insider Trades and Fund Holdings
In the past 12 months, MARA Holdings, Inc. insiders reported no open-market purchases and 8 sales worth $1.54M; 8 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144) and fund moves in the past year, newest first.
- Oct 19, 2026Insider saleCFO Salman Hassan Khan sold $126,080 under a 10b5-1 plan
- Oct 19, 2026Planned saleKhan Salman Hassan (officer) filed notice to sell about $126,080 around Oct 19, 2026
- Oct 1, 2026Insider saleCEO Frederick G. Thiel sold $308,606 under a 10b5-1 plan (6 days after: signed a material agreement)
- Oct 1, 2026Planned saleThiel Frederick G (officer, director) filed notice to sell about $308,606 around Oct 1, 2026
- Sep 25, 2026NewsCompany reported: Signed a material agreement
- Sep 18, 2026Insider saleGeneral Counsel Zabi Nowaid sold $101,350 under a 10b5-1 plan
- Sep 18, 2026Planned saleNowaid Zabi (officer) filed notice to sell about $100,869 around Sep 18, 2026
- Sep 17, 2026Insider saleCEO Frederick G. Thiel sold $314,932 under a 10b5-1 plan
- Sep 17, 2026Insider saleCFO Salman Hassan Khan sold $183,200 under a 10b5-1 plan
- Sep 17, 2026Planned saleThiel Frederick G (officer, director) filed notice to sell about $314,932 around Sep 17, 2026
- Sep 17, 2026Planned saleKhan Salman Hassan (officer) filed notice to sell about $183,200 around Sep 17, 2026
- Aug 21, 2026Insider saleGeneral Counsel Zabi Nowaid sold $100,512 under a 10b5-1 plan
- Aug 21, 2026Planned saleNowaid Zabi (officer) filed notice to sell about $100,003 around Aug 21, 2026
- Aug 17, 2026Insider saleCEO Frederick G. Thiel sold $253,321 under a 10b5-1 plan
- Aug 17, 2026Insider saleCFO Salman Hassan Khan sold $147,360 under a 10b5-1 plan
- Aug 17, 2026Planned saleThiel Frederick G (officer, director) filed notice to sell about $253,321 around Aug 17, 2026
- Aug 17, 2026Planned saleKhan Salman Hassan (officer) filed notice to sell about $147,360 around Aug 17, 2026
- Jun 30, 2026FundRenaissance Technologies opened a position in Q2 2026 (13F filed Aug 13, 2026)
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 21, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 21 | Salman Hassan KhanCFO | ▼ SELL10b5-1 | $126K |
| Oct 2 | Frederick G. ThielCEO | ▼ SELL10b5-1 | $309K |
| Sep 18 | Frederick G. ThielCEO | ▼ SELL10b5-1 | $315K |
| Sep 18 | Salman Hassan KhanCFO | ▼ SELL10b5-1 | $183K |
| Sep 18 | Zabi NowaidGeneral Counsel | ▼ SELL10b5-1 | $101K |
| Aug 21 | Zabi NowaidGeneral Counsel | ▼ SELL10b5-1 | $101K |
| Aug 19 | Frederick G. ThielCEO | ▼ SELL10b5-1 | $253K |
| Aug 19 | Salman Hassan KhanCFO | ▼ SELL10b5-1 | $147K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Salman Hassan Khan | CFO | 0 | $0 | 3 | $457K |
| Frederick G. Thiel | CEO | 0 | $0 | 3 | $877K |
| Zabi Nowaid | General Counsel | 0 | $0 | 2 | $202K |
Buybacks and executive pay
MARA Holdings, Inc. spent $46.9 million buying back its own shares in 2025.
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
Tracked funds that report MARA
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 1,111,938 | $15.4M | ▲ New |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →