Timing
Purchase and sale flow
PurchasesSales
Stock, pipeline and biotech catalyst intelligence
Reported ownership activity
Activity signal
No open-market purchases versus $135.4M in reported salesOption exercises, awards, and grants are separated from open-market direction.Timing
Composition
Concentration
Company profile
Dianthus Therapeutics, Inc., a clinical-stage biotechnology company, engages in the development of therapies for patients with severe autoimmune diseases. Its lead clinical-stage candidate, claseprubart, a monoclonal antibody engineered with extended half-life, improved potency, and high selectivity for only the active C1s complement protein; and DNTH212, a bifunctional fusion protein that targets plasmacytoid dendritic cell (pDC) BDCA2 to reduce Type 1 interferon production, while simultaneously inhibiting BAFF/APRIL to suppress B cell function. Dianthus Therapeutics, Inc. was founded in 2019 and is headquartered in New York, New York.
Company profile supplied by Yahoo Finance. Catalyst dates can change and should be confirmed against the linked primary source.
Page updated Aug 21, 2026 · Yahoo quotes cached for one minute; reference data may be used when a live field is unavailable.
| Insider trading | Relationship | Date | Transaction | Cost | Shares | Value | Shares total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| Read Simon | Director | Aug 19 '26 | Option Exercise | $18.36 | 2,778 | $51,004 | 2,778 | Aug 19 06:02 PM |
| Read Simon | Director | Aug 19 '26 | Sale | $117.55 | 2,778 | $326,554 | 0 | Aug 19 06:02 PM |
| Veness Adam M | SVP, General Counsel and Sec. | Aug 13 '26 | Option Exercise | $18.17 | 15,000 | $272,550 | 15,000 | Aug 14 04:30 PM |
Transactions may include sales, purchases, grants, and option exercises. Directional charts count only purchases and sales; follow the Form 4 link to verify the original SEC filing.