In the last 12 months, insiders at Dianthus Therapeutics made open-market sales of $71.19 million (898.36K shares) and bought no shares on the open market.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Lei Meng | Director | 0 | 2,717,554 | 2,717,554 | 38.0% | 24 Jan, 2024 |
| 2 | Funds Management Llc Fairmount | Director | 0 | 2,700,691 | 2,700,691 | 37.8% | 01 Apr, 2024 |
| 3 | Leon O Jr Moulder | Director | 0 | 1,436,745 | 1,436,745 | 20.1% | 24 Jan, 2024 |
| 4 | Rock Ventures Iv, L.P. Third | TenPercentOwner | 191,138 | 0 | 191,138 | 2.7% | 09 Feb, 2023 |
| 5 | Marino Garcia | Ceo And President | 65,292 | 0 | 65,292 | 0.9% | 07 Aug, 2026 |
| 6 | Jason Gardner | Director, Officer | 18,305 | 0 | 18,305 | 0.3% | 02 Dec, 2022 |
| 7 | Adam M Veness | Svp, General Counsel And Sec. | 15,000 | 0 | 15,000 | 0.2% | 14 Aug, 2026 |
| 8 | Simrat Randhawa | Evp, Head Of Rd | 4,000 | 0 | 4,000 | 0.1% | 03 Sep, 2026 |
| 9 | Kristen Stants | Chief People Officer | 1,267 | 0 | 1,267 | 0.0% | 02 Dec, 2022 |
| 10 | Thomas W. Beetham | Officer | 1,244 | 0 | 1,244 | 0.0% | 02 Dec, 2022 |
| 11 | Caren Deardorf | Chief Commercial Officer | 1,235 | 0 | 1,235 | 0.0% | 02 Dec, 2022 |
| 12 | Stephen F. Mahoney | Officer | 1,079 | 0 | 1,079 | 0.0% | 02 Dec, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Acquired M | 20,000 | $17.88 | $357.60K | 20,000 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed S | 7,928 | $100.43 | $796.21K | 12,072 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed S | 6,771 | $101.37 | $686.38K | 5,301 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed S | 3,501 | $102.39 | $358.47K | 1,800 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed S | 1,100 | $103.20 | $113.52K | 700 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed S | 700 | $104.39 | $73.07K | 0 | Direct |
| 17 Sep, 2026 | Edward Carr | Chief Accounting Officer | Disposed M | 20,000 | $0.00 | $0 | 43,818 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Acquired M | 7,500 | $17.88 | $134.10K | 11,500 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Acquired M | 6,249 | $21.77 | $136.04K | 17,749 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Acquired M | 9,375 | $22.07 | $206.91K | 27,124 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed S | 2,600 | $105.19 | $273.49K | 24,524 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed S | 7,215 | $106.25 | $766.59K | 17,309 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed S | 13,309 | $106.74 | $1.42Mn | 4,000 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed M | 7,500 | $0.00 | $0 | 56,776 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed M | 6,249 | $0.00 | $0 | 41,676 | Direct |
| 01 Sep, 2026 | Simrat Randhawa | Evp, Head Of Rd | Disposed M | 9,375 | $0.00 | $0 | 87,500 | Direct |
| 19 Aug, 2026 | Simon Read | Director | Acquired M | 2,778 | $18.36 | $51.00K | 2,778 | Direct |
| 19 Aug, 2026 | Simon Read | Director | Disposed S | 2,778 | $117.55 | $326.55K | 0 | Direct |
| 19 Aug, 2026 | Simon Read | Director | Disposed M | 2,778 | $0.00 | $0 | 19,445 | Direct |
| 13 Aug, 2026 | Adam M Veness | Svp, General Counsel And Sec. | Acquired M | 15,000 | $18.17 | $272.55K | 15,000 | Direct |