Insider trading recap: August 10, 2026
On August 10, 2026, insiders filed 73 open-market purchases worth $45.9M across 60 companies, and 162 sales worth $1.8B, on SEC Form 4. The largest purchase was Huang Jack Jiajia (Chief Executive Officer, Director, 10% Owner) buying $13.8M of 51Talk Online Education Group (COE) at an average $18.58 a share. The largest sale was ORCP III DE TopCo GP, LLC (10% Owner) selling $497.4M of Primo Brands Corp (PRMB). 10 companies had several insiders buying on the same day: BlossomHill Therapeutics, Inc. (BLSM), Latigo Biotherapeutics, Inc. (LTGO), AdaptHealth Corp. (AHCO).
Biggest insider buys filed August 10, 2026
Open-market purchases, one row per Form 4, largest first.
| Company | Insider | Value | Shares | Avg price | Traded |
|---|---|---|---|---|---|
| COE 51Talk Online Education Group | Huang Jack Jiajia Chief Executive Officer, Director, 10% Owner · 10b5-1 | $13.8M | 740,760 | $18.58 | Jul 31, 2026 |
| ATTO Attovia Therapeutics, Inc. | venBio Global Strategic Fund IV, L.P. 10% Owner | $6.5M | 382,352 | $17.00 | Aug 6, 2026 |
| BLSM BlossomHill Therapeutics, Inc. | Chen Bihua Director, 10% Owner | $5.0M | 312,500 | $16.00 | Aug 10, 2026 |
| LTGO Latigo Biotherapeutics, Inc. | Foresite Capital Management V, LLC 10% Owner | $2.5M | 140,000 | $18.00 | Aug 10, 2026 |
| LTGO Latigo Biotherapeutics, Inc. | Tananbaum James B. Director, 10% Owner | $2.5M | 140,000 | $18.00 | Aug 10, 2026 |
| NATR NATURES SUNSHINE PRODUCTS INC | Prescott Group Capital Management, L.L.C. 10% Owner | $2.3M | 141,389 | $16.40 | Aug 6, 2026 |
| FBIN Fortune Brands Innovations, Inc. | Singh Jesse G Chief Executive Officer, Director | $2.0M | 39,285 | $51.30 | Aug 6, 2026 |
| CLVT CLARIVATE PLC | Cornick Kenneth L. Director | $1.7M | 900,000 | $1.86 | Aug 6, 2026 |
| VEON VEON Ltd. | Fabela Augie K II Director | $1.1M | 20,000 | $56.00 | Aug 6, 2026 |
| PSN PARSONS CORP | Ball George L. Director | $959K | 20,000 | $47.97 | Aug 7, 2026 |
| LINE Lineage, Inc. | LeMasters Robb A. Chief Financial Officer | $827K | 20,000 | $41.33 | Aug 7, 2026 |
| BWFG Bankwell Financial Group, Inc. | Seidman Lawrence B Director | $666K | 10,000 | $66.63 | Aug 7, 2026 |
| PDX PIMCO Dynamic Income Strategy Fund | Stracke Thibault Christian SEE REMARKS | $540K | 25,000 | $21.62 | Aug 6, 2026 |
| PRCT PROCEPT BioRobotics Corp | Wood Larry L President, CEO, Director | $498K | 23,900 | $20.85 | Aug 7, 2026 |
| BWMX BETTERWARE DE MEXICO, S.A.P.I. DE C.V | Campos Luis Director, 10% Owner, Chairman | $425K | 25,015 | $17.00 | Aug 3, 2026 |
Several insiders buying the same stock
Companies where two or more insiders filed purchases this day. All cluster buys.
| Company | Insiders | Value |
|---|---|---|
| BLSM BlossomHill Therapeutics, Inc. | 4 | $5.2M |
| LTGO Latigo Biotherapeutics, Inc. | 2 | $5.0M |
| AHCO AdaptHealth Corp. | 2 | $395K |
| ELAN Elanco Animal Health Inc | 2 | $334K |
| MKZR MacKenzie Realty Capital, Inc. | 3 | $160K |
| MRP Millrose Properties, Inc. | 2 | $116K |
| CZWI Citizens Community Bancorp Inc. | 2 | $31K |
| BOTJ BANK OF THE JAMES FINANCIAL GROUP INC | 2 | $30K |
| RDGL VIVOS INC | 2 | $11K |
| CZNC CITIZENS & NORTHERN CORP | 2 | $5K |
Biggest insider sales filed August 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 |
|---|---|---|---|---|---|
| PRMB Primo Brands Corp | ORCP III DE TopCo GP, LLC 10% Owner | $497.4M | 20,410,340 | $24.37 | Aug 7, 2026 |
| PRMB Primo Brands Corp | Lee Tony W Director, 10% Owner | $497.4M | 20,410,340 | $24.37 | Aug 7, 2026 |
| INVX Innovex International, Inc. | Innovex Co-Invest Fund, L.P. Director, 10% Owner | $143.6M | 5,000,000 | $28.71 | Aug 10, 2026 |
| INVX Innovex International, Inc. | Amberjack Capital Partners, L.P. Director, 10% Owner · 10b5-1 | $143.6M | 5,000,000 | $28.71 | Aug 10, 2026 |
| ANET Arista Networks, Inc. | Bechtolsheim Andreas 10% Owner · 10b5-1 | $79.4M | 411,848 | $192.75 | Aug 6, 2026 |
| CHYM Chime Financial, Inc. | DST Global Advisors Ltd 10% Owner | $58.6M | 1,796,196 | $32.62 | Aug 6, 2026 |
| CHYM Chime Financial, Inc. | DST Global Advisors Ltd 10% Owner | $58.6M | 1,796,196 | $32.62 | Aug 6, 2026 |
| TISI TEAM INC | Corre Partners Management, LLC 10% Owner | $57.0M | 1,604,326 | $35.50 | Aug 6, 2026 |
| BSM Black Stone Minerals, L.P. | Whitehead James Director | $28.1M | 2,127,105 | $13.21 | Aug 6, 2026 |
| — JPMorgan Private Markets Fund | J.P. Morgan Investment Management Inc. Investment Adviser | $25.0M | 1,316,018 | $19.00 | Aug 6, 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.