Insider Trading in September 2026: The Biggest Buys, Sells and Most-Bought Stocks
September 2026 in insider trading: 1,017 purchases worth $2.7B, the biggest buys and sales, and the stocks the most insiders bought.
In September 2026, company insiders filed 1,017 open-market purchases worth $2.7B and 3,009 sales worth $14.1B with the SEC, across 473 companies bought. 268 purchases came from a CEO or CFO. Here is the month in one page, with links to every day's write-up.
The biggest insider purchases of September 2026
| Ticker | Company | Insider | Role | Value | Filed |
|---|---|---|---|---|---|
| LEN | Lennar Corp | Berkshire Hathaway INC | 10% Owner | $212.4M | Sep 21 |
| RSG | Republic Services, Inc. | Cascade Investment, L.L.C. | 10% Owner | $164.7M | Sep 8 |
| RSG | Republic Services, Inc. | Cascade Investment, L.L.C. | 10% Owner | $159.6M | Sep 10 |
| LEN | Lennar Corp | Berkshire Hathaway INC | 10% Owner | $136.4M | Sep 25 |
| RSG | Republic Services, Inc. | Cascade Investment, L.L.C. | 10% Owner | $129.3M | Sep 14 |
| RSG | Republic Services, Inc. | Cascade Investment, L.L.C. | 10% Owner | $122.4M | Sep 1 |
| RSG | Republic Services, Inc. | Cascade Investment, L.L.C. | 10% Owner | $119.1M | Sep 3 |
| PBLSX | AMG Pantheon Infrastructure Fund, LLC | BlueArc Capital Management, LLC | 10% Owner | $99.4M | Sep 3 |
| GPI | Group 1 Automotive Inc | Conifer Management, L.L.C. | 10% Owner | $66.3M | Sep 30 |
| KOD | Kodiak Sciences Inc. | Baker Bros. Advisors LP | Director, 10% Owner | $63.4M | Sep 30 |
| KOD | Kodiak Sciences Inc. | Baker Bros. Advisors LP | Director, 10% Owner | $58.6M | Sep 30 |
| LEN | Lennar Corp | Berkshire Hathaway INC | 10% Owner | $53.9M | Sep 30 |
| — | Sixth Street Lending Partners | Waxman Alan | Vice President | $47.8M | Sep 3 |
| N | John Hancock GA Senior Loan Trust | Manufacturers Life Reinsurance Ltd | 10% Owner | $44.0M | Sep 1 |
| GPI | Group 1 Automotive Inc | Conifer Management, L.L.C. | 10% Owner | $40.6M | Sep 8 |
Most bought by number of insiders
- N (John Hancock GA Senior Loan Trust): 10 insiders, $85.4M
- SBLK (Star Bulk Carriers Corp.): 8 insiders, $6.9M; +2.2% since
- RWT (Redwood Trust Inc): 6 insiders, $969K; -16.9% since
- WIX (Wix.com Ltd.): 6 insiders, $186K; +30.3% since
- ADRX (ADARx Pharmaceuticals, Inc.): 5 insiders, $87.7M; +5.0% since
- PMTS (CPI Card Group Inc.): 5 insiders, $12.0M; +22.0% since
- XBP (XBP Global Holdings, Inc.): 5 insiders, $2.4M; +4.2% since
- GAM (General American Investors Co Inc): 5 insiders, $672K; +178.0% since
- FUL (Fuller H B Co): 5 insiders, $499K; +0.7% since
- BWFG (Bankwell Financial Group, Inc.): 5 insiders, $435K; +4.0% since
CEO and CFO purchases
- Tan Anthony Ping Yeow (Chief Executive Officer, Director) at GRAB bought 10,350,000 shares at $2.89 ($29.9M), raising their holding 2,415%.
- Cohen Ryan (President, CEO and Chairman, Director) at GME bought 1,150,680 shares at $22.94 ($26.4M), raising their holding 2.9%.
- Cohen Ryan (President, CEO and Chairman, Director) at GME bought 1,000,000 shares at $20.38 ($20.4M), raising their holding 2.6%.
- Cohen Ryan (President, CEO and Chairman, Director) at GME bought 450,000 shares at $23.48 ($10.6M), raising their holding 1.1%.
- Murdoch Lachlan K (Executive Chair, CEO, Director) at FOX bought 149,934 shares at $68.53 ($10.3M), raising their holding 12%.
- Khosrowshahi Dara (Chief Executive Officer, Director) at UBER bought 141,000 shares at $70.96 ($10.0M), raising their holding 11%.
- Meeks Danny (Chief Executive Officer, Director, 10% Owner) at GWAV bought 2,152,853 shares at $3.72 ($8.0M), raising their holding 6,064%.
- Nechmad Yair (CEO, Co Founder & Chairman) at NYAX bought 104,511 shares at $44.09 ($4.6M), raising their holding 1.4%.
- Barry John F (CHIEF EXECUTIVE OFFICER, Director, 10% Owner) at PSEC bought 1,217,105 shares at $2.24 ($2.7M), raising their holding 1.4%.
- Ressler Richard S (CEO & President, Director, 10% Owner) at Cim Group, Inc. bought 526,808 shares at $5.14 ($2.7M), raising their holding 154%.
The biggest insider sales of September 2026
- SGF FANG Holdings, LP (10% Owner) at FANG sold 9,079,675 shares at $205.26 ($1.9B), cutting their holding 12%.
- SGF FANG Holdings, LP (10% Owner) at FANG sold 9,079,675 shares at $205.26 ($1.9B), cutting their holding 12%.
- Stevens Mark A (Director) at NVDA sold 1,848,501 shares at $222.26 ($410.8M), cutting their holding 35%.
- Platinum Equity, LLC (10% Owner) at INGM sold 13,125,000 shares at $27.19 ($356.8M), cutting their holding 7.4%.
- Stevens Mark A (Director) at NVDA sold 1,366,000 shares at $219.73 ($300.1M), cutting their holding 58%.
- Samueli Henry (Director) at AVGO sold 702,190 shares at $356.04 ($250.0M), cutting their holding 1.9% under a 10b5-1 plan.
- Stevens Mark A (Director) at NVDA sold 1,022,239 shares at $230.51 ($235.6M), cutting their holding 30%.
- Tpg Gp A, LLC (10% Owner) at LFST sold 18,409,705 shares at $12.29 ($226.3M), cutting their holding 19%.
- Tutor Ronald N (Director, Executive Chairman) at TPC sold 2,310,000 shares at $85.59 ($197.7M), cutting their holding 76%.
- Uber Technologies, Inc (10% Owner) at AUR sold 29,369,611 shares at $6.20 ($182.2M), cutting their holding 16%.
Questions and answers
What were the biggest insider buys in September 2026?
Berkshire Hathaway INC bought $212.4M of LEN; Cascade Investment, L.L.C. bought $164.7M of RSG; Cascade Investment, L.L.C. bought $159.6M of RSG; Berkshire Hathaway INC bought $136.4M of LEN; Cascade Investment, L.L.C. bought $129.3M of RSG.
Sources: SEC and congressional filings. Written from the data on this site on Oct 30, 2026; every figure links to the page it comes from. Not investment advice.