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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.

Pace of trading Bought Sold

Who's trading

90 days

  1. Savitz Ryan −$11.2M EVP, CFO & CBO sold 100% of stake
  2. Randhawa Simrat −$2.5M EVP, Head of R&D sold 85% of stake
  3. CARR EDWARD −$2.0M CHIEF ACCOUNTING OFFICER sold 100% of stake
  4. Read Simon −$327K Director sold 100% of stake
Date Insider Transaction Shares Price Value Owned after
2026-06-01 Randhawa Simrat EVP, Head of R&D Sale 10b5-1 −4,159 $91.37 $380K 4,000
2026-06-01 Randhawa Simrat EVP, Head of R&D Option exercise · Stock Option (Right to Buy) 10b5-1 −3,998 0
2026-06-01 Randhawa Simrat EVP, Head of R&D Option exercise · Stock Option (Right to Buy) 10b5-1 −6,908 64,276
2026-06-01 Randhawa Simrat EVP, Head of R&D Option exercise · Stock Option (Right to Buy) 10b5-1 −6,249 47,925
2026-06-01 Randhawa Simrat EVP, Head of R&D Option exercise · Stock Option (Right to Buy) 10b5-1 −9,375 96,875
2026-05-21 McGeorge Anne Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 Violin Jonathan Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 Soteropoulos Paula Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 Read Simon Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 Romano Steven J. Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 Lawton Alison Frances Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-21 KANGO SUJAY Director Grant or award · Stock Option (Right to Buy) +6,090 6,090
2026-05-08 Soteropoulos Paula Director Option exercise 10b5-1 +599 $8.44 $5K 599
2026-05-08 Soteropoulos Paula Director Sale 10b5-1 −599 $85.47 $51K 0
2026-05-08 Soteropoulos Paula Director Option exercise · Stock Option (Right to Buy) 10b5-1 −599 0
2026-04-09 Savitz Ryan EVP, CFO & CBO Option exercise 10b5-1 +8,224 $17.88 $147K 8,224
2026-04-09 Savitz Ryan EVP, CFO & CBO Sale 10b5-1 −8,224 $89.84 $739K 0
2026-04-09 Savitz Ryan EVP, CFO & CBO Option exercise · Stock Option (Right to Buy) 10b5-1 −8,224 71,776
2026-03-31 Savitz Ryan EVP, CFO & CBO Option exercise 10b5-1 +74,367 $8.44 $628K 74,367
2026-03-31 Savitz Ryan EVP, CFO & CBO Option exercise 10b5-1 +40,000 $17.88 $715K 114,367

Page 6 of 24 · 470 trades