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  • Insider Ownership

Insider Trading & Ownership of Joshua T. Brumm

Location
Pleasanton, CA
Summary
The estimated net worth of Joshua T. Brumm is at least $18,828,924 dollars as of 17 Dec 2025. Joshua T. Brumm is the CEO & President, Director of Dyne Therapeutics, Inc. and owns shares of Dyne Therapeutics, Inc. (DYN) stock worth about $13.95M. Joshua T. Brumm is the Chief Executive Officer, Director of CRESCENT BIOPHARMA, INC. and owns shares of CRESCENT BIOPHARMA, INC. (CBIO) stock worth about $4.88M.
Signature
/s/ Barbara Bispham, as attorney-in-fact for Joshua T. Brumm
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Ownership of Joshua T. Brumm

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
DYN Dyne Therapeutics, Inc. CEO & President, Director $13,950,288 08 Mar 2024
CBIO CRESCENT BIOPHARMA, INC. Chief Executive Officer, Director $4,878,636 15 Dec 2025

Insider Transactions Reported by Joshua T. Brumm:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.