Insider trading recap: September 10, 2026
On September 10, 2026, insiders filed 48 open-market purchases worth $222.8M across 43 companies, and 186 sales worth $420.3M, on SEC Form 4. The largest purchase was Cascade Investment, L.L.C. (10% Owner) buying $159.6M of REPUBLIC SERVICES, INC. (RSG) at an average $221.41 a share. The largest sale was Intrator Michael N (CEO and President, Director, 10% Owner) selling $30.8M of CoreWeave, Inc. (CRWV) under a 10b5-1 plan. 5 companies had several insiders buying on the same day: GameStop Corp. (GME), Helus Pharma Inc. (HELP), CarParts.com, Inc. (PRTS).
Biggest insider buys filed September 10, 2026
Open-market purchases, one row per Form 4, largest first.
| Company | Insider | Value | Shares | Avg price | Traded |
|---|---|---|---|---|---|
| RSG REPUBLIC SERVICES, INC. | Cascade Investment, L.L.C. 10% Owner | $159.6M | 720,804 | $221.41 | Sep 8, 2026 |
| QVCG QVC Group, Inc. | Goldentree Asset Management LP 10% Owner | $26.0M | 1,600,000 | $16.25 | Sep 8, 2026 |
| GME GameStop Corp. | Cohen Ryan President, CEO and Chairman, Director | $20.4M | 1,000,000 | $20.38 | Sep 10, 2026 |
| UBER Uber Technologies, Inc | Khosrowshahi Dara Chief Executive Officer, Director | $10.0M | 141,000 | $70.96 | Sep 10, 2026 |
| UPST Upstart Holdings, Inc. | Gu Paul Chief Executive Officer, Director | $1.3M | 50,000 | $25.55 | Sep 10, 2026 |
| HELP Helus Pharma Inc. | So Eric H. L. Executive Chair, Director | $1.2M | 100,000 | $12.09 | Sep 4, 2026 |
| HELP Helus Pharma Inc. | Glavine Paul Chief Growth Officer | $1.2M | 100,000 | $11.78 | Sep 3, 2026 |
| ATEC Alphatec Holdings, Inc. | Miles Patrick CEO, Director | $1.0M | 115,000 | $8.81 | Sep 10, 2026 |
| CELH Celsius Holdings, Inc. | Fieldly John Chief Executive Officer, Director | $494K | 18,000 | $27.44 | Sep 10, 2026 |
| CLPR Clipper Realty Inc. | Levinson Sam Director, 10% Owner | $388K | 117,552 | $3.30 | Sep 8, 2026 |
| GRCE Grace Therapeutics, Inc. | Kohli Prashant Chief Executive Officer, Director | $214K | 100,000 | $2.14 | Sep 9, 2026 |
| CRT CROSS TIMBERS ROYALTY TRUST | Oliver Eric L 10% Owner | $148K | 13,276 | $11.13 | Sep 8, 2026 |
| PRTS CarParts.com, Inc. | Huffaker Michael COO | $133K | 13,250 | $10.06 | Sep 10, 2026 |
| PRTS CarParts.com, Inc. | Meniane David CEO | $133K | 13,250 | $10.06 | Sep 10, 2026 |
| GME GameStop Corp. | Attal Alain Director | $100K | 5,000 | $20.00 | Sep 10, 2026 |
Several insiders buying the same stock
Companies where two or more insiders filed purchases this day. All cluster buys.
Biggest insider sales filed September 10, 2026
Selling has many routine reasons (taxes, diversification, planned 10b5-1 sales), so read these as context.
| Company | Insider | Value | Shares | Avg price | Traded |
|---|---|---|---|---|---|
| CRWV CoreWeave, Inc. | Intrator Michael N CEO and President, Director, 10% Owner · 10b5-1 | $30.8M | 307,692 | $100.08 | Sep 8, 2026 |
| DELL Dell Technologies Inc. | Silver Lake Partners IV, L.P. Director, 10% Owner | $30.4M | 57,631 | $527.17 | Sep 8, 2026 |
| DELL Dell Technologies Inc. | Sl Spv-2, L.P. Director, 10% Owner | $26.3M | 49,949 | $527.07 | Sep 8, 2026 |
| QVCG QVC Group, Inc. | Silver Point Capital, L.P. 10% Owner | $26.0M | 1,600,000 | $16.25 | Sep 8, 2026 |
| DDOG Datadog, Inc. | Pomel Olivier Chief Executive Officer, Director · 10b5-1 | $18.6M | 89,497 | $207.86 | Sep 8, 2026 |
| PTGX Protagonist Therapeutics, Inc | Patel Dinesh V Ph D President and CEO, Director · 10b5-1 | $18.2M | 125,000 | $145.92 | Sep 8, 2026 |
| SNOW Snowflake Inc. | Dageville Benoit Director · 10b5-1 | $16.8M | 50,000 | $335.72 | Sep 9, 2026 |
| DELL Dell Technologies Inc. | Silver Lake Partners V DE (AIV), L.P. Director, 10% Owner | $15.1M | 28,695 | $527.07 | Sep 8, 2026 |
| ONC BeOne Medicines Ltd. | Wang Xiaodong Director, Chair, Scientific Advisory Brd · 10b5-1 | $13.4M | 38,287 | $349.10 | Sep 8, 2026 |
| ACMR ACM Research, Inc. | Wang David H See Remarks, Director, 10% Owner · 10b5-1 | $10.6M | 140,000 | $75.93 | Sep 8, 2026 |
Grouped by the day the Form 4 reached SEC EDGAR. Values are shares times the reported price; a price far from the market close is treated as a typo and left out. Not investment advice.