DYN

Dyne Therapeutics, Inc.

Pharmaceutical PreparationsNasdaqLarge accelerated filer

Total Trades

132

Buys

Sells

105

Largest Trade

N/A

Insiders

Institutional Funds

173

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Scalzo Richard William	See Remarks	SELL	$15K–$50K	1K	$13.33	Mar 15, 2023
McNeill Jonathan	See Remarks	SELL	$15K–$50K	2K	$13.18	Mar 15, 2023
HIGH SUSANNA GATTI	COO	SELL	$15K–$50K	2K	$13.33	Mar 15, 2023
Farwell Wildon	Chief Medical Offi…	SELL	$50K–$100K	7K	$13.33	Mar 15, 2023
Brumm Joshua T	See Remarks	SELL	$50K–$100K	7K	$13.33	Mar 15, 2023
Beskrovnaya Oxana	Chief Scientific O…	SELL	$15K–$50K	1K	$13.33	Mar 15, 2023
McNeill Jonathan	See Remarks	EXERCISE	$1K–$15K	10K	$0.73	Jan 23, 2023
McNeill Jonathan	See Remarks	SELL	$100K–$500K	10K	$14.03	Jan 23, 2023
McNeill Jonathan	See Remarks	SELL	$100K–$500K	30K	$11.57	Jan 11, 2023
Rhodes Jason P	Director	BUY	$1M+	935K	$10.70	Dec 14, 2022
Atlas Venture Opportunity Fund II, L.P.	10% Owner	BUY	$1M+	935K	$10.70	Dec 14, 2022
Scalzo Richard William	See Remarks	GRANT	N/A	31K	—	Dec 13, 2022
Scalzo Richard William	See Remarks	SELL	$1K–$15K	312	$10.87	Dec 13, 2022
McNeill Jonathan	See Remarks	GRANT	N/A	40K	—	Dec 13, 2022
McNeill Jonathan	See Remarks	SELL	$1K–$15K	472	$10.87	Dec 13, 2022
HIGH SUSANNA GATTI	COO	SELL	$1K–$15K	751	$10.87	Dec 13, 2022
HIGH SUSANNA GATTI	COO	GRANT	N/A	44K	—	Dec 13, 2022
Farwell Wildon	Chief Medical Offi…	SELL	$1K–$15K	628	$10.87	Dec 13, 2022
Farwell Wildon	Chief Medical Offi…	GRANT	N/A	36K	—	Dec 13, 2022
Brumm Joshua T	See Remarks	SELL	$15K–$50K	3K	$10.87	Dec 13, 2022
Brumm Joshua T	See Remarks	GRANT	N/A	144K	—	Dec 13, 2022
Beskrovnaya Oxana	Chief Scientific O…	SELL	$1K–$15K	680	$10.87	Dec 13, 2022
Beskrovnaya Oxana	Chief Scientific O…	GRANT	N/A	40K	—	Dec 13, 2022
Brumm Joshua T	See Remarks	SELL	$1M+	210K	$12.52	Oct 11, 2022
Brumm Joshua T	See Remarks	EXERCISE	$100K–$500K	210K	$1.03	Oct 11, 2022
Scalzo Richard William	See Remarks	SELL	$1K–$15K	308	$8.73	Mar 14, 2022
McNeill Jonathan	See Remarks	SELL	$1K–$15K	481	$8.73	Mar 14, 2022
HIGH SUSANNA GATTI	COO	SELL	$1K–$15K	765	$8.73	Mar 14, 2022
Farwell Wildon	Chief Medical Offi…	SELL	$1K–$15K	640	$8.73	Mar 14, 2022
Brumm Joshua T	See Remarks	SELL	$15K–$50K	3K	$8.73	Mar 14, 2022
Beskrovnaya Oxana	Chief Scientific O…	SELL	$1K–$15K	693	$8.73	Mar 14, 2022
Farwell Wildon	Chief Medical Offi…	SELL	$15K–$50K	6K	$8.56	Mar 4, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 173 funds holding

Fund	Shares	Value	Type
Atlas Venture Life Science Advisors, LLC	9.1M	$1M+	SH
STATE STREET CORP	6.7M	$1M+	SH
Siren, L.L.C.	3.5M	$1M+	SH
PERCEPTIVE ADVISORS LLC	3.5M	$1M+	SH
Frazier Life Sciences Management, L.P.	3.2M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	2.8M	$1M+	SH
Deep Track Capital, LP	2.6M	$1M+	SH
Vivo Capital, LLC	2.6M	$1M+	SH
Sofinnova Investments, Inc.	2.3M	$1M+	SH
ORBIMED ADVISORS LLC	2.2M	$1M+	SH
VR Adviser, LLC	2.2M	$1M+	SH
BRAIDWELL LP	1.5M	$1M+	SH
Palo Alto Investors LP	1.5M	$1M+	SH
MPM BioImpact LLC	1.4M	$1M+	SH
Logos Global Management LP	1.3M	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1.2M	$1M+	SH
Aberdeen Group plc	1.1M	$1M+	SH
Candriam S.C.A.	1.1M	$1M+	SH
ArrowMark Colorado Holdings LLC	701K	$1M+	SH
EVENTIDE ASSET MANAGEMENT, LLC	680K	$1M+	SH