🕵️ 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 $45.8M with no open-market buying against it. Ryan Savitz sold $15.0M through a 10b5-1 trading plan in 14 lots (Sep–Jul). 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) · 6 sellers, $45.8M (37 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Ryan Savitz | 0 | – | 14 | $15.0M | Jul 9, 2026 |
| Randhawa Simrat | 0 | – | 8 | $12.5M | Jun 1, 2026 |
| Marino Garcia | 0 | – | 5 | $10.0M | Mar 12, 2026 |
| Edward Carr | 0 | – | 5 | $3.6M | Mar 12, 2026 |
| Adam M Veness | 0 | – | 2 | $2.4M | Jun 17, 2026 |
| Soteropoulos Paula | 0 | – | 3 | $2.3M | May 8, 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 ↗ | |
| 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 Company LLP | 6.3% | 13G | Nov 12, 2025 | filing ↗ | |
| Sirenia Capital Management LP | 5.3% | 13G | May 15, 2026 | filing ↗ | |
| Alex Silverstein | 5.3% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| 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 ↗ |
| Ryan Savitz | $636K | Sep 9, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| 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 ↗ |
| Material agreement (1.01) | Sep 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 9, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 8, 2025 | filing ↗ |
| Other events (8.01) | Sep 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |