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CIK 0001690585 · Non-accelerated filer<br>Smaller reporting company

Dianthus Therapeutics, Inc. /DE/

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Ticker
DNTH
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
929-999-4055
Business address
7 TIMES SQUARE, 43RD FLOOR, NEW YORK, NY, 10036
Former names
Magenta Therapeutics, Inc.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$16,043,610
in 4 filings, $16.0M under 10b5-1 plans

Net −$16,043,610. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Sale 10b5-1 −23,465 $81.75 $1.9M 4,365
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Sale 10b5-1 −3,865 $82.66 $319K 500
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Sale 10b5-1 −200 $83.38 $17K 300
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Sale 10b5-1 −300 $85.53 $26K 0
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Option exercise · Stock Option (Right to Buy) 10b5-1 −16,182 63,818
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Option exercise · Stock Option (Right to Buy) 10b5-1 −17,500 42,500
2026-03-12 CARR EDWARD CHIEF ACCOUNTING OFFICER Option exercise · Stock Option (Right to Buy) 10b5-1 −10,000 50,000
2026-02-03 Savitz Ryan EVP, CFO & CBO Grant or award · Stock Option (Right to Buy) +150,000 150,000
2026-02-03 Randhawa Simrat EVP, Head of R&D Grant or award · Stock Option (Right to Buy) +150,000 150,000
2026-02-03 Veness Adam M SVP, General Counsel and Sec. Grant or award · Stock Option (Right to Buy) +100,000 100,000
2026-02-03 Garcia Marino CEO AND PRESIDENT Grant or award · Stock Option (Right to Buy) +355,000 355,000
2026-02-03 CARR EDWARD CHIEF ACCOUNTING OFFICER Grant or award · Stock Option (Right to Buy) +55,000 55,000
2025-12-04 Savitz Ryan CFO & CBO Option exercise 10b5-1 +20,000 $8.44 $169K 20,000
2025-12-04 Savitz Ryan CFO & CBO Sale 10b5-1 −20,000 $45.18 $904K 0
2025-12-04 Savitz Ryan CFO & CBO Option exercise · Stock Option (Right to Buy) 10b5-1 +20,000 84,766
2025-11-14 Randhawa Simrat EVP, Head of R&D Option exercise 10b5-1 +40,287 $17.88 $720K 44,287
2025-11-14 Randhawa Simrat EVP, Head of R&D Option exercise 10b5-1 +37,494 $21.77 $816K 81,781
2025-11-14 Randhawa Simrat EVP, Head of R&D Option exercise 10b5-1 +31,250 $22.07 $690K 113,031
2025-11-14 Randhawa Simrat EVP, Head of R&D Sale 10b5-1 −109,031 $38.14 $4.2M 4,000
2025-11-14 Randhawa Simrat EVP, Head of R&D Option exercise · Stock Option (Right to Buy) 10b5-1 −40,287 76,184

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