Dyne Therapeutics, Inc.

DYN

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001818794

SEC filings (opens in a new tab)

In the last 90 days, Dyne Therapeutics, Inc. insiders filed 0 open-market purchases and 10 sales; 245 institutions reported holding it in 13F filings for Q2 2026, worth $4.23B in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Dyne Therapeutics, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of DYN: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	228	3	245	+20
Shares	187.9M	13.7M	190.6M	+16.5M (+9.4%)
Value	$3.40B	$248.4M	$4.23B	+$1.08B (+34.1%)

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (48)

Institutions that held Dyne Therapeutics, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to DYN in Q2 2026
Institution	Shares	Value	% of portfolio
Jupiter Topco LLC	11,997,738	$266.6M	0.11%
Novo Holdings A/S	960,394	$21.3M	1.24%
Granahan Investment Management Inc	338,565	$7.52M	0.27%
Alyeska Investment Group, L.P.	245,278	$5.45M	0.01%
Alps Advisors Inc	167,082	$3.71M	0.02%
Axxcess Wealth Management, LLC	155,270	$3.45M	0.05%
Schonfeld Strategic Advisors LLC	134,752	$2.99M	0.02%
Jain Global LLC	116,341	$2.58M	0.03%
Fideuram - Intesa Sanpaolo Private Banking S.P.A.	87,069	$1.93M	0.06%
D. E. Shaw & Co., Inc.	60,161	$1.34M	0.00%
Handelsbanken Fonder AB	53,200	$1.18M	0.00%
Flputnam Investment Management Co	52,975	$1.18M	0.01%
Bridgeway Capital Management, LLC	50,000	$1.11M	0.02%
Norges Bank	49,319	$1.10M	0.00%
Boothbay Fund Management, LLC	30,600	$679.6K	0.01%
CenterBook Partners LP	21,538	$478.4K	0.02%
BIT Capital GmbH	15,700	$348.7K	0.01%
Two Sigma Investments, LP	14,178	$314.9K	0.00%
GWM Advisors LLC	13,522	$300.3K	0.00%
Two Sigma Securities, LLC	10,015	$222.4K	0.02%
Janney Montgomery Scott LLC	9,762	$217.0K	0.00%
JustInvest LLC	9,429	$209.4K	0.00%
Persistent Asset Partners Ltd	5,569	$123.7K	0.04%
Nykredit A/S	5,102	$113.3K	0.00%
Pacer Advisors, Inc.	1,922	$43.0K	0.00%
Clear Street Markets LLC	1,268	$28.2K	0.01%
SRS Capital Advisors, Inc.	997	$22.1K	0.00%
State of Wyoming	804	$17.9K	0.00%
Compass Financial Management LLC	724	$17.5K	0.00%
Optiver Holding B.V.	747	$16.6K	0.00%
Northwestern Mutual Wealth Management Co	267	$5.93K	0.00%
Bessemer Group Inc	97	$2.00K	0.00%
Hantz Financial Services, Inc.	102	$2.00K	0.00%
Continuum Advisory, LLC	88	$1.95K	0.00%
Global Retirement Partners, LLC	84	$1.87K	0.00%
Ares Financial Consulting, LLC	84	$1.87K	0.00%
Silver Grove Financial Group, Inc.	76	$1.69K	0.00%
Cape Investment Advisory, Inc.	71	$1.58K	0.00%
Rialto Wealth Management, LLC	31	$689	0.00%
SJS Investment Consulting Inc.	28	$622	0.00%
Clearstead Advisors, LLC	15	$334	0.00%
Action Point Financial Planning, LLC	15	$311	0.00%
Creative Capital Management Investments LLC	8	$178	0.00%
CVA Family Office, LLC	6	$133	0.00%
HFM Investment Advisors, LLC	3	$67	0.00%
DecisionPoint Financial, LLC	1	$22	0.00%
LRI Investments, LLC	1	$22	0.00%
Navigoe, LLC	1	$0	0.00%

Sold out (28)

Institutions that held Dyne Therapeutics, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of DYN in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
StemPoint Capital LP	506,075	$9.18M
Qube Research & Technologies Ltd	253,153	$4.59M
PDT Partners, LLC	182,986	$3.32M
Burkehill Global Management, LP	155,000	$2.81M
Man Group plc	95,682	$1.73M
Tudor Investment Corp Et Al	77,031	$1.40M
Trexquant Investment LP	27,641	$501.1K
Martingale Asset Management L P	25,654	$465.1K
Engineers Gate Manager LP	24,420	$442.7K
Arrowpoint Investment Partners (Singapore) Pte. Ltd.	17,213	$312.1K
Stoneridge Investment Partners LLC	16,611	$301.0K
Graham Capital Management, L.P.	13,172	$238.8K
Inspire Advisors, LLC	11,845	$214.7K
Capstone Investment Advisors, LLC	11,217	$203.4K
Jump Financial, LLC	10,610	$192.4K
Scientech Research LLC	10,564	$191.5K
Caitong International Asset Management Co., Ltd	10,405	$188.6K
Stephens Inc	10,118	$183.4K
Farallon Capital Management, L.L.C.	10,000	$181.3K
Quantbot Technologies LP	1,098	$19.9K
National Bank of Canada	200	$3.62K
Aster Capital Management (DIFC) Ltd	226	$2.36K
MAI Capital Management	113	$2.05K
Quadrant Capital Group LLC	67	$1.22K
Advisory Services Network, LLC	29	$526
Bare Financial Services, Inc	28	$508
Twin Peaks Wealth Advisors, LLC	14	$254
Creative Financial Designs Inc	10	$181

Not filed for Q2 2026 yet (3)

Institutions that held Dyne Therapeutics, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding DYN in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Janus Henderson Group PLC	13,647,376	$247.4M
Arcadia Investment Management Corp	49,475	$897.0K
CWM, LLC	4,430	$80.3K