FMR LLC

Position in DYN — Dyne Therapeutics, Inc.

CIK 315066 BOSTON, MA

Position in DYN

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$161,519,806

+$33,012,154 QoQ

Shares Held

8,908,980

+35.6% QoQ

Ownership

6.24%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2020

21 quarters on record

Voting authority Sole 99.90450085194938.ToString("F0")% Shared 0.ToString("F0")% None 0.0954991480506186.ToString("F0")%

Healthcare · as of Mar 31, 2026

FMR LLC holds $49,683,576,696 across 351 Biotechnology names. DYN ranks #63 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALNY	Alnylam Pharmaceuticals, Inc.	14,579,166	$4,823,808,652
2	ARGX	Argenx SE	4,991,034	$3,644,702,577
3	MRNA	Moderna, Inc.	45,672,024	$2,320,138,818
4	ROIV	Roivant Sciences Ltd.	77,981,253	$2,160,080,705
5	INSM	INSMED Inc	13,160,167	$2,151,950,504
6	IONS	Ionis Pharmaceuticals Inc	24,556,637	$1,843,957,869
7	RPRX	Royalty Pharma plc	25,152,242	$1,206,553,046
8	REGN	Regeneron Pharmaceuticals, Inc.	1,518,192	$1,173,015,865

21 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$161,519,806	8,908,980	+35.6%	Shares	Defined	2026-05-15
2025-12-31	$128,507,652	6,569,921	+21.6%	Shares	Defined	2026-02-17
2025-09-30	$68,334,236	5,401,916	+2.1%	Shares	Defined	2025-11-13
2025-06-30	$50,392,870	5,293,369	+1.9%	Shares	Defined	2025-08-14
2025-03-31	$54,342,774	5,195,294	-35.0%	Shares	Defined	2025-05-12
2024-12-31	$188,407,692	7,996,931	-11.4%	Shares	Defined	2025-02-13
2024-09-30	$324,238,954	9,026,697	+69.7%	Shares	Defined	2024-11-13
2024-06-30	$187,706,201	5,318,963	+65.3%	Shares	Defined	2024-08-13
2024-03-31	$91,370,177	3,218,393	+150.9%	Shares	Defined	2024-05-13
2023-12-31	$17,061,399	1,282,812	+51.6%	Shares	Defined	2024-02-13
2023-09-30	$7,583,385	846,360	-5.9%	Shares	Defined	2023-11-13
2023-06-30	$10,117,035	899,292	+119.8%	Shares	Defined	2023-08-11
2023-03-31	$4,712,325	409,056	-28.8%	Shares	Defined	2023-08-11
2022-12-31	$6,654,050	574,120	+683.9%	Shares	Defined	2023-02-13
2022-09-30	$930,173	73,242	+0.6%	Shares	Defined	2022-11-10
2022-06-30	$500,362	72,833	+0.1%	Shares	Defined	2022-08-12
2022-03-31	$701,473	72,767	+323.1%	Shares	Defined	2022-05-13
2021-12-31	$204,508	17,200	-91.9%	Shares	Defined	2022-02-14
2021-03-31	$3,284,330	211,483	+79.8%	Shares	Defined	2021-05-14
2020-12-31	$2,469,600	117,600	0.0%	Shares	Defined	2021-02-08
2020-09-30	$2,374,344	117,600	—	Shares	Defined	2020-11-13
No filing history on record for this holder in this stock.