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.
Kymera Therapeutics, Inc. (KYMR): Insider Trades and Fund Holdings
In the past 12 months, Kymera Therapeutics, Inc. insiders reported no open-market purchases and 23 sales worth $398.6M; 20 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), Congress trades and fund moves in the past year, newest first.
- Oct 1, 2026Insider saleCEO Nello Mainolfi sold $3.4 million under a 10b5-1 plan
- Oct 1, 2026Planned saleMainolfi Nello (officer, director) filed notice to sell about $3.4 million around Oct 1, 2026
- Sep 4, 2026Insider saleGeneral Counsel Brian Adams sold $744,297
- Sep 4, 2026Planned saleBrian Adams (officer) filed notice to sell about $747,191 around Sep 4, 2026
- Sep 2, 2026Planned saleJEREMY CHADWICK (officer) filed notice to sell about $1.3 million around Sep 2, 2026
- Aug 5, 2026NewsCompany reported: Quarterly or annual results
- Jul 7, 2026Insider saleCEO Nello Mainolfi sold $6 million under a 10b5-1 plan
- Jul 1, 2026Insider saleCEO Nello Mainolfi sold $9.2 million under a 10b5-1 plan
- Jul 1, 2026Insider saleChief Business Officer Noah Goodman sold $387,329 under a 10b5-1 plan
- Jun 30, 2026Insider saleCFO Bruce N. Jacobs sold $8.9 million under a 10b5-1 plan
- Jun 29, 2026Insider saleDirector Bruce Booth sold $16.6 million under a 10b5-1 plan
- Jun 26, 2026Insider saleDirector Bruce Booth sold $51.6 million under a 10b5-1 plan
- Jun 26, 2026Insider saleDirector Bvf Partners L P/il sold $173.7 million
- Jun 25, 2026Insider saleDirector Bruce Booth sold $65.1 million under a 10b5-1 plan
- Jun 25, 2026Insider saleChief Business Officer Noah Goodman sold $570,000 under a 10b5-1 plan
- Jun 24, 2026Insider saleDirector Bruce Booth sold $13.5 million under a 10b5-1 plan
- Jun 23, 2026Insider saleDirector Bruce Booth sold $140,772 under a 10b5-1 plan
- Jun 22, 2026Insider saleDirector Bruce Booth sold $27.6 million under a 10b5-1 plan
- Jun 22, 2026Insider saleChief Business Officer Noah Goodman sold $247,500 under a 10b5-1 plan
- Jun 18, 2026Insider saleDirector Bruce Booth sold $10.5 million under a 10b5-1 plan
- Jun 17, 2026Insider saleDirector Bruce Booth sold $10.6 million under a 10b5-1 plan
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 1, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 1 | Nello MainolfiCEO | ▼ SELL10b5-1 | $3.41M |
| Sep 4 | Brian AdamsGeneral Counsel | ▼ SELL | $744K |
| Jul 7 | Nello MainolfiCEO | ▼ SELL10b5-1 | $5.95M |
| Jul 2 | Nello MainolfiCEO | ▼ SELL10b5-1 | $9.22M |
| Jul 2 | Bruce N. JacobsCFO | ▼ SELL10b5-1 | $8.86M |
| Jul 2 | Bruce BoothDirector | ▼ SELL10b5-1 | $8.28M |
| Jul 2 | Noah GoodmanChief Business Officer | ▼ SELL10b5-1 | $387K |
| Jun 30 | Bruce BoothDirector | ▼ SELL10b5-1 | $51.6M |
| Jun 30 | Bruce BoothDirector | ▼ SELL10b5-1 | $4.86M |
| Jun 30 | Bruce BoothDirector | ▼ SELL10b5-1 | $3.42M |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Nello Mainolfi | CEO | 0 | $0 | 3 | $18.6M |
| Brian Adams | General Counsel | 0 | $0 | 1 | $744K |
| Bruce N. Jacobs | CFO | 0 | $0 | 1 | $8.86M |
| Bruce Booth | Director | 0 | $0 | 13 | $195.6M |
| Noah Goodman | Chief Business Officer | 0 | $0 | 3 | $1.20M |
| Bvf Partners L P/il | Director | 0 | $0 | 2 | $173.7M |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $8.55M | $27.8M | n/a |
| 2024 | $15.4M | $19.8M | n/a |
| 2023 | $9.67M | $6.41M | 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.
A 1 of 23 insider trades reported after the deadline. How it is graded
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 →