Dianthus Therapeutics, Inc. /DE/
Total Trades
11
Buys
5
Sells
3
Largest Trade
$1M+
Insiders
3
Institutional Funds
111
Inst. Value
$1M+
Activist Filings
50
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Savitz Ryan | CFO & CBO | SELL | $500K+ | 20K | $45.18 | Dec 6, 2025 |
| Savitz Ryan | CFO & CBO | EXERCISE | $100K–$500K | 20K | $8.44 | Dec 6, 2025 |
| Randhawa Simrat | EVP, Head of R&D | EXERCISE | $1M+ | 197K | $15.25 | Nov 15, 2025 |
| Randhawa Simrat | EVP, Head of R&D | SELL | $1M+ | 197K | $37.55 | Nov 15, 2025 |
| Savitz Ryan | CFO & CBO | EXERCISE | $100K–$500K | 20K | $8.44 | Sep 11, 2025 |
| Savitz Ryan | CFO & CBO | SELL | $500K+ | 20K | $35.00 | Sep 11, 2025 |
| Fairmount Funds Management LLC | Director | BUY | $100K–$500K | 25K | $13.63 | Oct 3, 2023 |
| Fairmount Funds Management LLC | Director | BUY | $100K–$500K | 30K | $13.15 | Sep 28, 2023 |
| Randhawa Simrat | Chief Medical Offi… | BUY | $50K–$100K | 4K | $13.20 | Sep 25, 2023 |
| Fairmount Funds Management LLC | Director | BUY | $100K–$500K | 30K | $13.20 | Sep 21, 2023 |
| Fairmount Funds Management LLC | Director | BUY | $100K–$500K | 24K | $11.20 | Sep 14, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 111 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Octagon Capital Advisors LP | 2.4M | $1M+ | SH |
| Fairmount Funds Management LLC | 2.1M | $1M+ | SH |
| Avidity Partners Management LP | 2.1M | $1M+ | SH |
| VANGUARD GROUP INC | 1.8M | $1M+ | SH |
| RA CAPITAL MANAGEMENT, L.P. | 1.6M | $1M+ | SH |
| STATE STREET CORP | 1.5M | $1M+ | SH |
| BRAIDWELL LP | 1.3M | $1M+ | SH |
| Point72 Asset Management, L.P. | 1.2M | $1M+ | SH |
| VR Adviser, LLC | 1.0M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 834K | $1M+ | SH |
| SILVERARC CAPITAL MANAGEMENT, LLC | 750K | $1M+ | SH |
| Bain Capital Life Sciences Investors, LLC | 744K | $1M+ | SH |
| UBS Group AG | 597K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 585K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 476K | $1M+ | SH |
| Nantahala Capital Management, LLC | 375K | $1M+ | SH |
| Vivo Capital, LLC | 354K | $1M+ | SH |
| Logos Global Management LP | 315K | $1M+ | SH |
| Candriam S.C.A. | 311K | $1M+ | SH |
| Spruce Street Capital LP | 297K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Point72 Asset Management, L.P.
SC 13G/A · Feb 17, 2026
6.9%
3.0M shares
SC 13G/A · Feb 17, 2026
6.0%
2.6M shares
Fairmount Funds Management LLC
SC 13D/A · Nov 26, 2025
4.9%
2.1M shares
Avidity Partners Management LP
SC 13D/A · Nov 20, 2025
4.9%
2.1M shares
SC 13G/A · Nov 14, 2025
6.1%
2.4M shares
SC 13G/A · Nov 14, 2025
3.1%
1.3M shares
SC 13G/A · Nov 14, 2025
9.5%
3.9M shares
SC 13G/A · Nov 14, 2025
3.0%
1.2M shares
SC 13G/A · Nov 14, 2025
0.0%
0 shares
Wellington Management Group LLP
SC 13G · Nov 12, 2025
6.5%
2.6M shares
SC 13G/A · Nov 5, 2025
15.0%
6.0M shares
Fairmount Funds Management LLC
SC 13D/A · Sep 15, 2025
9.9%
4.1M shares
Point72 Asset Management, L.P.
SC 13G · Sep 12, 2025
5.3%
2.1M shares
Venrock Healthcare Capital Partners III, L.P.
SC 13G/A · Aug 14, 2025
3.1%
1.0M shares
Point72 Asset Management, L.P.
SC 13G/A · Aug 14, 2025
4.5%
1.4M shares
SC 13G/A · Aug 14, 2025
7.5%
2.5M shares
SC 13G/A · Aug 14, 2025
9.9%
3.2M shares
SC 13G/A · May 15, 2025
8.9%
2.9M shares
SC 13G/A · May 15, 2025
4.7%
1.5M shares
SC 13G · May 15, 2025
5.3%
1.7M shares
SC 13G/A · May 12, 2025
14.0%
4.5M shares
SC 13G/A · Apr 24, 2025
5.0%
1.6M shares
Point72 Asset Management, L.P.
SC 13G · Apr 17, 2025
5.9%
1.9M shares
SC 13G · Mar 24, 2025
7.3%
2.4M shares
Avidity Partners Management LP
SC 13D/A · Mar 20, 2025
9.9%
3.4M shares
SC 13G/A · Feb 14, 2025
9.4%
2.9M shares
SC 13G/A · Feb 14, 2025
8.8%
2.7M shares
SC 13G/A · Feb 5, 2025
7.1%
2.1M shares
Avidity Partners Management LP
SC 13D/A · Dec 4, 2024
9.9%
293.0M shares
SC 13G · Nov 22, 2024
5.1%
1.5M shares
SC 13G/A · Nov 14, 2024
3.5%
1.0M shares
Venrock Healthcare Capital Partners III, L.P.
SC 13G/A · Nov 14, 2024
5.9%
1.7M shares
SC 13G · Nov 8, 2024
5.6%
1.6M shares
SC 13G · Oct 24, 2024
5.6%
1.6M shares
SC 13G · Oct 11, 2024
6.0%
1.7M shares
undefined Viridian, LLC 2 undefined
SC 13D/A · Sep 13, 2024
3.7%
1.1M shares
Fairmount Funds Management LLC 2
SC 13D/A · Apr 1, 2024
10.0%
295.0M shares
SC 13G/A · Feb 14, 2024
0.0%
6 shares
SC 13G/A · Feb 14, 2024
4.1%
1.2M shares
SC 13G/A · Feb 14, 2024
0.0%
0 shares
BCLS Fund III Investments, LP 2
SC 13G · Feb 2, 2024
10.0%
3.0M shares
SC 13G · Feb 1, 2024
10.0%
3.0M shares
Avidity Partners Management LP
SC 13D · Jan 31, 2024
9.9%
292.3M shares
Fairmount Funds Management LLC 2
SC 13D/A · Jan 24, 2024
9.9%
294.7M shares
SC 13G · Nov 13, 2023
15.0%
2.2M shares
SC 13D · Sep 21, 2023
7.4%
109.0M shares
Fairmount Funds Management LLC 2
SC 13D · Sep 21, 2023
12.7%
187.4M shares
SC 13G · Sep 21, 2023
7.1%
1.0M shares
Venrock Healthcare Capital Partners III, L.P.
SC 13G · Sep 21, 2023
6.3%
928K shares
SC 13D/A · Sep 15, 2023
1.1%
167K shares