On Oct 10, 2025, 7 insiders at 7 companies filed 14 purchases reported on Form 4, worth $15.8M in all, with a median purchase of $5.9K. The largest was Lynx1 Capital Management LP, 10% owner of Cullinan Therapeutics, Inc. (CGEM), who reported buying 626,043 shares worth $4.2M. Officers accounted for 6 purchases, directors who are not officers for 0, and 10% owners with no board or officer role for 7. Chief executives and chief financial officers filed 1 purchase: Draguleasa Mihai, Chief Financial Officer of Rise Gold Corp. (RYES). 1 company showed cluster buying, two or more insiders buying within 7 days: NMZ (2 insiders). For 1 insider of 7, this was the first purchase of that company's stock on our record. That is fewer than the 45 purchases filed on Oct 9, 2025. A Form 4 is due within two business days of the trade, so most of these purchases were made earlier in the week. Code P also covers shares bought privately from the company, so one large figure can be a negotiated placement rather than buying on the exchange.
| Company | Value | Insider | Role | Shares | Filed |
|---|---|---|---|---|---|
| CGEM Cullinan Therapeutics, Inc. | $4.2M | Lynx1 Capital Management LP | 10% owner | 626,043 | 2025-10-10 |
| CGEM Cullinan Therapeutics, Inc. | $3.6M | Lynx1 Capital Management LP | 10% owner | 556,300 | 2025-10-10 |
| ACET Adicet Bio, Inc. | $3.5M | Orbimed Advisors Llc | 10% owner | 3,500,000 | 2025-10-10 |
| CGEM Cullinan Therapeutics, Inc. | $2.0M | Lynx1 Capital Management LP | 10% owner | 277,298 | 2025-10-10 |
| ACET Adicet Bio, Inc. | $1.5M | Orbimed Advisors Llc | 10% owner | 1,500,000 | 2025-10-10 |
| CIK 1984165 | $934.7K | Zook Christopher | Insider | 37,825 | 2025-10-10 |
| RYES Rise Gold Corp. | $9.8K | Draguleasa Mihai | Chief Financial Officer | 121,952 | 2025-10-10 |
| NMZ Nuveen Municipal High Income Opportunity Fund | $2.0K | Merrill Lynch, Pierce, Fenner & Smith Inc. | 10% owner | 190 | 2025-10-10 |
| RCG RENN Fund, Inc. | $943 | Stahl Murray | President/Co-Portfolio Manager, 10% owner | 360 | 2025-10-10 |
| TPL Texas Pacific Land Corp | $936 | Horizon Kinetics Asset Management Llc | 10% owner | 1 | 2025-10-10 |
| RCG RENN Fund, Inc. | $776 | Stahl Murray | President/Co-Portfolio Manager, 10% owner | 296 | 2025-10-10 |
| RCG RENN Fund, Inc. | $472 | Stahl Murray | President/Co-Portfolio Manager, 10% owner | 180 | 2025-10-10 |
| RCG RENN Fund, Inc. | $215 | Stahl Murray | President/Co-Portfolio Manager, 10% owner | 82 | 2025-10-10 |
| RCG RENN Fund, Inc. | $47 | Stahl Murray | President/Co-Portfolio Manager, 10% owner | 18 | 2025-10-10 |
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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