Insider Trading Daily Recap - September 30, 2026
September 30, 2026: 105 insider buys ($136.54M) and 116 sells ($191.74M). 72 dip buys detected.
In This Article
Here's your daily summary of insider trading activity from SEC Form 4 filings filed on September 30, 2026.
Largest Insider Purchases
The biggest open market purchases by corporate insiders today:
Insiders Buying the Dip
These insiders purchased shares while their stock was trading 15%+ below its 52-week high - a potentially bullish signal:
| Stock | Insider | Value | % Below 52W High |
|---|---|---|---|
| LEN | BERKSHIRE HATHAWAY INC | $52.12M | 38.7% |
| GPI | Conifer Management, L.L.C. | $8.41M | 46.0% |
| GPI | Conifer Management, L.L.C. | $8.35M | 46.2% |
| GPI | Conifer Management, L.L.C. | $6.93M | 46.5% |
| GPI | Conifer Management, L.L.C. | $4.73M | 45.5% |
| GPI | Conifer Management, L.L.C. | $4.02M | 46.0% |
| GPI | Conifer Management, L.L.C. | $4.00M | 45.7% |
| GPI | Conifer Management, L.L.C. | $3.77M | 45.8% |
| GPI | Conifer Management, L.L.C. | $3.52M | 46.9% |
| GPI | Conifer Management, L.L.C. | $3.49M | 46.8% |
Notable Insider Sales
The largest insider sales filed today. Note: Insider selling can occur for many reasons unrelated to company outlook (diversification, estate planning, tax obligations, etc.):
| Stock | Insider | Shares | Value |
|---|---|---|---|
| MPWR | Hsing Michael | 10,967 | $14.82M |
| CBRS | Mallick Dhiraj | 68,830 | $13.42M |
| CBRS | Mallick Dhiraj | 46,427 | $9.76M |
| CX | Doehner Cobian Mauricio | 927,900 | $8.88M |
| CBRS | Mallick Dhiraj | 41,391 | $8.75M |
How to Interpret Insider Trading Data
Insider trading data from SEC Form 4 filings can provide valuable signals, but requires context:
- Open market purchases are most significant: When insiders voluntarily buy shares with their own money, it often signals confidence.
- Buying the Dip matters: Insiders purchasing when their stock is down significantly may have insight into the company's prospects.
- Selling is less informative: Insiders sell for many personal reasons unrelated to company outlook.
- Cluster buying is powerful: Multiple insiders buying around the same time is a stronger signal than individual trades.
- Consider position size: Large purchases relative to an insider's holdings show higher conviction.
Track all insider trades in real-time on our Insider Trades page.
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