Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Avidity Partners Management LP - 17 Nov 2025 SCHEDULE 13D/A Report for Dianthus Therapeutics, Inc. Common Stock, $0.001 par value (DNTH)
- Filing manager
- Avidity Partners Management LP
- Reporting owner
- Avidity Partners Management LP
- Beneficially owned shares
- 2,104,184 shares
- Large-stake signal
-
Ownership
4.9%Beneficial ownership of this reported class.
Shares
2,104,184 sharesShares beneficially owned as disclosed.
Event date
17 Nov 2025Date tied to the ownership event or amendment.
Accepted by SEC
19 Nov 2025EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 4.9%
- Symbol
- DNTH
- Shares outstanding
- 42,942,531 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 19 Nov 2025, 21:15:58 UTC
- Event date
- 17 Nov 2025
- Prior SEC filing
- 19 Mar 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
Avidity Partners Management LP disclosed 4.9% ownership in Dianthus Therapeutics, Inc. Common Stock, $0.001 par value (DNTH) on 17 Nov 2025.
Key facts
- Avidity Partners Management LP filed SCHEDULE 13D/A for Dianthus Therapeutics, Inc. Common Stock, $0.001 par value (DNTH).
- Disclosed ownership: 4.9%.
- Date of event: 17 Nov 2025.
Change
- Previous schedule filing date: 19 Mar 2025.
- Current filing was accepted on 19 Nov 2025, 21:15.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (6)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Avidity Partners Management LP | 4.9% | 2,104,184 | 0 | 2,104,184 | By: Avidity Partners Management (GP) LLC, its general partner, By: /s/ Michael Gregory | Michael Gregory / Managing Member | 0001791827 |
| Avidity Partners Management (GP) LLC | 4.9% | 2,104,184 | 0 | 2,104,184 | By: /s/ Michael Gregory | Michael Gregory / Managing Member | |
| Avidity Capital Partners Fund (GP) LP | 4.9% | 2,104,184 | 0 | 2,104,184 | By: Avidity Capital Partners (GP) LLC, its general partner, By: /s/ Michael Gregory | Michael Gregory / Managing Member | |
| Avidity Capital Partners (GP) LLC | 4.9% | 2,104,184 | 0 | 2,104,184 | By: /s/ Michael Gregory | Michael Gregory, Managing Member | |
| Avidity Private Master Fund I LP | 4.4% | 1,899,593 | 0 | 1,899,593 | By: Avidity Capital Partners Fund (GP) LP, its general partner, By: Avidity Capital Partners (GP) LLC, its general partner, By: /s/ Michael Gregory | Michael Gregory / Managing Member | |
| Michael Gregory | 4.9% | 2,104,184 | 0 | 2,104,184 | By: /s/ Michael Gregory | Michael Gregory |
CIK / CUSIP context first