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.
Xos, Inc. (XOS): Insider Trades and Fund Holdings
In the past 12 months, Xos, Inc. insiders reported 1 open-market purchase worth $11K and 25 sales worth $552K; 18 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.
- Sep 21, 2026Insider buyDirector George N. Mattson bought $10,561
- Sep 17, 2026Insider saleDirector Dietmar Ostermann sold $12,082
- Sep 16, 2026Insider saleDirector Dietmar Ostermann sold $665
- Sep 4, 2026Insider saleDirector Dietmar Ostermann sold $15,000
- Sep 2, 2026Insider saleDirector Dietmar Ostermann sold $30,220
- Sep 2, 2026Planned saleDietmar Ostermann (director) filed notice to sell about $60,000 around Sep 2, 2026
- Aug 20, 2026Insider saleCOO Giordano Sordoni sold $197,549
- Aug 20, 2026Insider saleDirector Dietmar Ostermann sold $34,913
- Aug 20, 2026Planned saleGiordano Sordoni (officer) filed notice to sell about $505,190 around Aug 20, 2026
- Aug 20, 2026Planned saleDietmar Ostermann (director) filed notice to sell about $25,000 around Aug 20, 2026
- Aug 18, 2026Insider saleDirector Stuart N. Bernstein sold $125,835
- Aug 18, 2026Planned saleStuart Bernstein (director) filed notice to sell about $124,500 around Aug 18, 2026
- Jul 17, 2026Insider saleDirector Dietmar Ostermann sold $8,936 under a 10b5-1 plan
- Jul 17, 2026Insider saleDirector Michael Paul Richardson sold $6,700 under a 10b5-1 plan
- Jul 17, 2026Insider saleDirector Alice Yake sold $5,370 under a 10b5-1 plan
- Jul 16, 2026Insider saleDirector Dietmar Ostermann sold $8,984 under a 10b5-1 plan
- Jul 16, 2026Insider saleDirector Michael Paul Richardson sold $6,760 under a 10b5-1 plan
- Jul 16, 2026Insider saleDirector Alice Yake sold $5,414 under a 10b5-1 plan
- Jul 15, 2026Insider saleDirector Dietmar Ostermann sold $9,576 under a 10b5-1 plan
- Jul 15, 2026Insider saleDirector Michael Paul Richardson sold $7,195 under a 10b5-1 plan
- Jul 15, 2026Insider saleDirector Alice Yake sold $5,760 under a 10b5-1 plan
- Jul 14, 2026Insider saleDirector Dietmar Ostermann sold $9,943 under a 10b5-1 plan
- Jul 14, 2026Insider saleDirector Michael Paul Richardson sold $7,454 under a 10b5-1 plan
- Jul 14, 2026Insider saleDirector Alice Yake sold $5,987 under a 10b5-1 plan
- Jul 13, 2026Insider saleDirector Dietmar Ostermann sold $9,756 under a 10b5-1 plan
- Jul 13, 2026Insider saleDirector Michael Paul Richardson sold $7,321 under a 10b5-1 plan
- Jul 13, 2026Insider saleDirector Alice Yake sold $5,871 under a 10b5-1 plan
- Jul 10, 2026Insider saleDirector Dietmar Ostermann sold $10,369 under a 10b5-1 plan
- Jul 10, 2026Insider saleDirector Michael Paul Richardson sold $7,777 under a 10b5-1 plan
- Jul 10, 2026Insider saleDirector Alice Yake sold $6,229 under a 10b5-1 plan
- 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: Sep 23, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 23 | George N. MattsonDirector | ▲ BUY | $11K |
| Sep 18 | Dietmar OstermannDirector | ▼ SELL | $12K |
| Sep 18 | Dietmar OstermannDirector | ▼ SELL | $665 |
| Sep 4 | Dietmar OstermannDirector | ▼ SELL | $30K |
| Sep 4 | Dietmar OstermannDirector | ▼ SELL | $15K |
| Aug 27 | Dietmar OstermannDirector | ▼ SELL10b5-1 | $10K |
| Aug 27 | Dietmar OstermannDirector | ▼ SELL10b5-1 | $10K |
| Aug 27 | Dietmar OstermannDirector | ▼ SELL10b5-1 | $10K |
| Aug 27 | Dietmar OstermannDirector | ▼ SELL10b5-1 | $10K |
| Aug 27 | Dietmar OstermannDirector | ▼ SELL10b5-1 | $9K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| George N. Mattson | Director | 1 | $11K | 0 | $0 |
| Dietmar Ostermann | Director | 0 | $0 | 11 | $150K |
| Michael Paul Richardson | Director | 0 | $0 | 6 | $43K |
| Alice Yake | Director | 0 | $0 | 6 | $35K |
| Giordano Sordoni | COO | 0 | $0 | 1 | $198K |
| Stuart N. Bernstein | Director | 0 | $0 | 1 | $126K |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $2.48M | $1.49M | n/a |
| 2024 | $2.69M | $1.34M | n/a |
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 XOS
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 | 10,600 | $32K | ▲ 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 →