🕵️ Dianthus Therapeutics Inc ($DNTH)
SEC insider & ownership activity, last 12 months · CIK 1690585 · every row links its SEC filing
Over the last 12 months insiders sold $69.2M with no open-market buying against it. Marino Garcia sold $28.0M through a 10b5-1 trading plan in 12 lots (Mar–Aug). 1 planned sale is pending, the largest $421K (Adam Veness). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $69.2M (61 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Marino Garcia | 0 | – | 12 | $28.0M | Aug 7, 2026 |
| Randhawa Simrat | 0 | – | 11 | $15.0M | Sep 1, 2026 |
| Ryan Savitz | 0 | – | 13 | $14.3M | Jul 9, 2026 |
| Adam M. Veness | 0 | – | 5 | $4.6M | Aug 10, 2026 |
| Edward Carr | 0 | – | 5 | $3.6M | Mar 12, 2026 |
| Soteropoulos Paula | 0 | – | 3 | $2.3M | May 8, 2026 |
| McGeorge Anne | 0 | – | 5 | $845K | Aug 10, 2026 |
| Read Simon | 0 | – | 7 | $631K | Aug 19, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 15.0% | 13G | Nov 5, 2025 | filing ↗ | |
| Abigail P. Johnson | 15.0% | 13G | Nov 5, 2025 | filing ↗ | |
| T. ROWE Price Investment Management, Inc. | 12.1% | 13G | Aug 7, 2026 | filing ↗ | |
| Avidity Partners Management (GP) LLC | 9.9% | 13D | Mar 17, 2025 | filing ↗ | |
| Michael Gregory | 9.9% | 13D | Mar 17, 2025 | filing ↗ | |
| BlackRock, Inc. | 6.4% | 13G | Jul 28, 2026 | filing ↗ | |
| Wellington Management Group LLP | 5.9% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Group Holdings LLP | 5.9% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Investment Advisors Holdings LLP | 5.9% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Management Company LLP | 5.5% | 13G | Aug 13, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Simrat Randhawa | $2.4M | Sep 1, 2026 | filing ↗ |
| Read Simon | $624K | Aug 10, 2026 | filing ↗ |
| Adam Veness | $1.8M | Aug 10, 2026 | filing ↗ |
| Anne M. McGeorge | $844K | Aug 10, 2026 | filing ↗ |
| Marino Garcia | $4.4M | Aug 7, 2026 | filing ↗ |
| Adam Veness | $421K | Aug 7, 2026 | filing ↗ |
| Marino Garcia | $13.6M | Aug 7, 2026 | filing ↗ |
| Ryan Savitz | $3.1M | Jul 9, 2026 | filing ↗ |
| Adam M. Veness | $2.4M | Jun 17, 2026 | filing ↗ |
| Simrat Randhawa | $2.5M | Jun 1, 2026 | filing ↗ |
| Ryan Savitz | $719K | Apr 9, 2026 | filing ↗ |
| Ryan Savitz | $9.1M | Mar 31, 2026 | filing ↗ |
| Paula C. Soteropoulos | $95K | Mar 31, 2026 | filing ↗ |
| Paula C. Soteropoulos | $2.2M | Mar 24, 2026 | filing ↗ |
| Marino Garcia | $10.6M | Mar 12, 2026 | filing ↗ |
| Simrat Randhawa | $2.9M | Mar 12, 2026 | filing ↗ |
| Edward Carr | $3.7M | Mar 12, 2026 | filing ↗ |
| Ryan Savitz | $879K | Dec 4, 2025 | filing ↗ |
| Simrat Randhawa | $7.6M | Nov 13, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2026 | filing ↗ |
| Other events (8.01) | Jun 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 12, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 21, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Other events (8.01) | Mar 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 26, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 10, 2026 | filing ↗ |
| Earnings (2.02) | Mar 9, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 9, 2026 | filing ↗ |
| Other events (8.01) | Mar 9, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 16, 2025 | filing ↗ |
| Earnings (2.02) | Oct 16, 2025 | filing ↗ |
| Other events (8.01) | Oct 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 16, 2025 | filing ↗ |