Form 4 for DNTH Dianthus Therapeutics, Inc. /DE/
Accepted 2026-06-02 19:00:06 ET · period of report 2026-06-01 · accession 0001992260-26-000006 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 2026-06-02 19:00 | 2026-06-01 | DNTH | Randhawa Simrat | EVP, Head of R, D | M - OptEx | $18.85 | +26.5K | 30.5K | +663% | +$500.2K |
| DMT | 2026-06-02 19:00 | 2026-06-01 | DNTH | Randhawa Simrat | EVP, Head of R, D | S - Sale+OE | $90.62 | -26.5K | 4,000 | -87% | -$2.40M |
| DMT | 2026-06-02 19:00 | 2026-06-01 | DNTH | Randhawa Simrat | EVP, Head of R, D | M - OptEx | $0.00 | -26.5K | 96.9K | -21% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-01 | M | A | 3,998 | $8.44 | 7,998 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. |
| 2 | Common | Common Stock | 2026-06-01 | M | A | 6,908 | $17.88 | 14,906 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. |
| 3 | Common | Common Stock | 2026-06-01 | M | A | 6,249 | $21.77 | 21,155 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. |
| 4 | Common | Common Stock | 2026-06-01 | M | A | 9,375 | $22.07 | 30,530 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. |
| 5 | Common | Common Stock | 2026-06-01 | S | D | 5,428 | $89.72 | 25,102 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F2) The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.17 to $90.16, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range. |
| 6 | Common | Common Stock | 2026-06-01 | S | D | 16,943 | $90.72 | 8,159 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F3) The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $90.17 to $91.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range. |
| 7 | Common | Common Stock | 2026-06-01 | S | D | 4,159 | $91.37 | 4,000 | D | — | — | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F4) The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $91.17 to $91.96, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range. |
| 8 | Derivative | Stock Option (Right to Buy) | 2026-06-01 | M | D | 3,998 | $0.00 | 0 | D | $8.44 · — to 2032-06-06 | 3,998 Common Stock | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F5) The shares of common stock underlying this stock option award vested as to 25% of the shares on April 25, 2023, with the remaining three quarters vesting in equal monthly installments over the following three years, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |
| 9 | Derivative | Stock Option (Right to Buy) | 2026-06-01 | M | D | 6,908 | $0.00 | 64,276 | D | $17.88 · — to 2034-01-23 | 6,908 Common Stock | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F6) The shares of common stock underlying this stock option award vest in equal monthly installments over the four years after January 1, 2024, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |
| 10 | Derivative | Stock Option (Right to Buy) | 2026-06-01 | M | D | 6,249 | $0.00 | 47,925 | D | $21.77 · — to 2034-05-22 | 6,249 Common Stock | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F7) The shares of common stock underlying this stock option award vest in equal monthly installments over the four years after May 1, 2024, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |
| 11 | Derivative | Stock Option (Right to Buy) | 2026-06-01 | M | D | 9,375 | $0.00 | 96,875 | D | $22.07 · — to 2035-02-03 | 9,375 Common Stock | (F1) This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. (F8) The shares of common stock underlying this stock option award vest in equal monthly installments over the four years after January 1, 2025, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |