Dianthus Therapeutics, Inc.
A clinical-stage biotech developing antibody therapies for severe autoimmune diseases, Dianthus Therapeutics is built around its lead candidate, claseprubart, a selective C1s inhibitor designed for convenient subcutaneous self-injection and now in late-stage trials for conditions like generalized myasthenia gravis and chronic inflammatory demyelinating polyneuropathy. A second candidate, DNTH212, targets immune signals behind these diseases. The company holds worldwide development and commercial rights to its medicines outside Greater China.
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| Sirenia Capital Management LP | 13G/APassive | 3.1% | 1.70M | Aug 14, 2026 |
| Alex Silverstein | 13G/APassive | 3.1% | 1.70M | Aug 14, 2026 |
| Wellington Management Group LLP | 13GPassive | 5.9% | 3.23M | Aug 13, 2026 |
| Wellington Group Holdings LLP | 13GPassive | 5.9% | 3.23M | Aug 13, 2026 |
| Wellington Investment Advisors Holdings LLP | 13GPassive | 5.9% | 3.23M | Aug 13, 2026 |
| Wellington Management Company LLP | 13GPassive | 5.5% | 3.23M | Aug 13, 2026 |
| T. Rowe Price Investment Management, Inc. | 13G/APassive | 12.1% | 6.63M | Aug 7, 2026 |
| BlackRock, Inc. | 13G/APassive | 6.4% | 3.50M | Jul 28, 2026 |
| RA Capital Management, L.P. | 13G/APassive | 4.8% | 2.61M | May 15, 2026 |
| Peter Kolchinsky | 13G/APassive | 4.8% | 2.61M | May 15, 2026 |