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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

TickerCompanyInsiderRoleValueFiled
LENLennar CorpBerkshire Hathaway INC10% Owner$212.4MSep 21
RSGRepublic Services, Inc.Cascade Investment, L.L.C.10% Owner$164.7MSep 8
RSGRepublic Services, Inc.Cascade Investment, L.L.C.10% Owner$159.6MSep 10
LENLennar CorpBerkshire Hathaway INC10% Owner$136.4MSep 25
RSGRepublic Services, Inc.Cascade Investment, L.L.C.10% Owner$129.3MSep 14
RSGRepublic Services, Inc.Cascade Investment, L.L.C.10% Owner$122.4MSep 1
RSGRepublic Services, Inc.Cascade Investment, L.L.C.10% Owner$119.1MSep 3
PBLSXAMG Pantheon Infrastructure Fund, LLCBlueArc Capital Management, LLC10% Owner$99.4MSep 3
GPIGroup 1 Automotive IncConifer Management, L.L.C.10% Owner$66.3MSep 30
KODKodiak Sciences Inc.Baker Bros. Advisors LPDirector, 10% Owner$63.4MSep 30
KODKodiak Sciences Inc.Baker Bros. Advisors LPDirector, 10% Owner$58.6MSep 30
LENLennar CorpBerkshire Hathaway INC10% Owner$53.9MSep 30
—Sixth Street Lending PartnersWaxman AlanVice President$47.8MSep 3
NJohn Hancock GA Senior Loan TrustManufacturers Life Reinsurance Ltd10% Owner$44.0MSep 1
GPIGroup 1 Automotive IncConifer Management, L.L.C.10% Owner$40.6MSep 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.