Insider Trading Tracker - SEC Form 4 Filings
Insider trading this week
Insidra tracks every SEC Form 4 filing as it is published on EDGAR: stock purchases and sales by CEOs, CFOs, directors and owners of more than 10% of a company, usually within minutes of filing.
In the past 7 days, corporate insiders reported 183 purchases worth $354.0M across 101 companies, and 704 sales worth $1.47B across 389 companies, on SEC Form 4.
Largest insider buys in the past 7 days
| Date | Stock | Insider | Role | Value |
|---|---|---|---|---|
| Nov 3, 2026 | KNOP KNOT Offshore Partners LP | Trygve Seglem | Director | $43.5M |
| Nov 2, 2026 | BBTX Bambusa Therapeutics, Inc. | Ra Capital Management, L.P. | Insider | $40.0M |
| Nov 4, 2026 | LYEL Lyell Immunopharma, Inc. | ARCH Venture Fund XIII, L.P. | 10% Owner | $25.0M |
| Nov 4, 2026 | LYEL Lyell Immunopharma, Inc. | ARCH Venture Partners IX, LLC | 10% Owner | $25.0M |
| Nov 2, 2026 | ASPE Aspen Neuroscience, Inc. | ARCH Venture Fund X, L.P. | Insider | $20.0M |
| Nov 2, 2026 | ASPE Aspen Neuroscience, Inc. | ARCH Venture Partners XIV, L.P. | Insider | $18.0M |
| Nov 2, 2026 | ASPE Aspen Neuroscience, Inc. | Orbimed Advisors LLC | Director | $15.0M |
| Nov 3, 2026 | CRBG Corebridge Financial, Inc. | Nippon Life Insurance Co | Insider | $12.9M |
| Nov 5, 2026 | COUR Coursera, Inc. | Pale Fire Capital SE | 10% Owner | $11.7M |
| Nov 2, 2026 | LRN Stride, Inc. | Dylan G. Haggart | Director | $10.6M |
What is an SEC Form 4?
Officers, directors and 10% owners of a public company must report trades in its stock to the SEC on Form 4, generally within two business days. Insiders sell for many reasons, such as taxes, diversification or pre-planned 10b5-1 sales, so purchases are usually read as the more informative signal. Several insiders buying the same stock within days of each other is stronger still: see cluster buys, or how these signals have performed in backtested strategies.
Source: SEC Form 4 filings. Open-market or private purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded. A trade reported by several related filers is counted once.