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.

Q1 2026 vs. Q4 2025

How the institutions holding Dyne Therapeutics, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of DYN: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	233	3	228	−2
Shares	177.9M	11.4M	187.9M	+21.3M (+12.8%)
Value	$3.48B	$222.0M	$3.40B	+$143.6M (+4.4%)

3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (42)

Institutions that held Dyne Therapeutics, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to DYN in Q1 2026
Institution	Shares	Value	% of portfolio
Vanguard Capital Management LLC	6,405,069	$116.1M	0.00%
Vanguard Portfolio Management LLC	4,162,041	$75.5M	0.00%
Fiera Capital Corp	1,380,620	$25.0M	0.09%
Vanguard Fiduciary Trust Co	947,438	$17.2M	0.00%
Man Group plc	95,682	$1.73M	0.00%
Moore Capital Management, LP	78,765	$1.43M	0.05%
Vanguard Asset Management, Ltd	73,308	$1.33M	0.00%
Envestnet Asset Management Inc	68,393	$1.24M	0.00%
Blackstone Group Inc.	57,107	$1.04M	0.00%
Vanguard Global Advisers, LLC	56,392	$1.02M	0.00%
Fifth Third Bancorp	54,229	$983.2K	0.00%
Mangrove Partners	47,927	$868.9K	0.07%
Assetmark, Inc	31,062	$563.2K	0.00%
Vanguard Investments Australia, Ltd.	27,728	$502.7K	0.00%
Brinker Capital Investments, LLC	27,048	$490.4K	0.00%
Atom Investors LP	24,078	$436.5K	0.03%
E Fund Management Co., Ltd.	23,001	$417.0K	0.01%
Prudential Financial Inc	20,575	$373.0K	0.00%
Pavaki Capital Management LLC	20,000	$362.6K	0.25%
Stoneridge Investment Partners LLC	16,611	$301.0K	0.22%
Mariner, LLC	16,089	$291.7K	0.00%
Stifel Financial Corp	16,028	$290.6K	0.00%
Xponance, Inc.	12,208	$221.3K	0.00%
Inspire Advisors, LLC	11,845	$214.7K	0.02%
Scientech Research LLC	10,564	$191.5K	0.16%
Caitong International Asset Management Co., Ltd	10,405	$188.6K	0.03%
Stephens Inc	10,118	$183.4K	0.00%
CWM Advisors, LLC	9,303	$168.7K	0.01%
Mark Sheptoff Financial Planning, LLC	4,150	$72.5K	0.04%
Hilton Head Capital Partners, LLC	1,446	$26.2K	0.01%
Kemnay Advisory Services Inc.	1,186	$21.5K	0.00%
Quantbot Technologies LP	1,098	$19.9K	0.00%
Quarry LP	750	$13.6K	0.00%
Whittier Trust Co of Nevada Inc	150	$2.75K	0.00%
MAI Capital Management	113	$2.05K	0.00%
Park Place Capital Corp	47	$852	0.00%
Advisory Services Network, LLC	29	$526	0.00%
Bare Financial Services, Inc	28	$508	0.00%
Fortitude Family Office, LLC	25	$453	0.00%
Twin Peaks Wealth Advisors, LLC	14	$254	0.00%
Creative Financial Designs Inc	10	$181	0.00%
Hughes Financial Services, LLC	6	$109	0.00%

Sold out (44)

Institutions that held Dyne Therapeutics, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of DYN in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Candriam Luxembourg S.C.A.	1,057,263	$20.7M
Eventide Asset Management, LLC	680,305	$13.3M
Federated Hermes, Inc.	464,797	$9.09M
Balyasny Asset Management LLC	432,986	$8.47M
Schroder Investment Management Group	386,953	$7.43M
Point72 Asset Management, L.P.	329,345	$6.44M
Canada Pension Plan Investment Board	284,000	$5.56M
American Century Companies Inc	168,304	$3.29M
Neuberger Berman Group LLC	165,482	$3.24M
Jain Global LLC	162,047	$3.17M
First Light Asset Management, LLC	155,231	$3.04M
Lisanti Capital Growth, LLC	154,445	$3.02M
Monashee Investment Management LLC	114,525	$2.24M
Axxcess Wealth Management, LLC	113,818	$2.23M
Baird Financial Group, Inc.	103,334	$2.02M
HRT Financial LP	75,394	$1.47M
Headlands Technologies LLC	75,235	$1.47M
Jane Street Group, LLC	70,323	$1.38M
Seven Fleet Capital Management LP	70,180	$1.37M
J. Goldman & Co LP	46,010	$900.0K
Legato Capital Management LLC	42,665	$834.5K
Lighthouse Investment Partners, LLC	34,000	$665.0K
Gsa Capital Partners LLP	31,422	$615.0K
Optimize Financial Inc	30,310	$592.9K
Walleye Capital LLC	27,762	$543.0K
Winton Group Ltd	21,296	$416.6K
Fox Run Management, L.L.C.	16,450	$321.8K
Quest Partners LLC	15,963	$312.2K
BIT Capital GmbH	15,000	$293.4K
Thrivent Financial for Lutherans	14,365	$281.0K
Bridgefront Capital, LLC	12,018	$235.1K
Verition Fund Management LLC	10,453	$204.5K
Soleus Capital Management, L.P.	10,000	$195.6K
Amalgamated Bank	3,889	$76.0K
STRS Ohio	2,600	$50.9K
Daiwa Securities Group Inc.	424	$8.00K
Optiver Holding B.V.	395	$7.73K
Fideuram - Intesa Sanpaolo Private Banking S.P.A.	200	$3.91K
Flagship Harbor Advisors, LLC	200	$3.91K
MRP Capital Investments, LLC	75	$1.47K
Parkside Financial Bank & Trust	70	$1.37K
Bell Investment Advisors, Inc	26	$509
SRS Capital Advisors, Inc.	18	$352
Dunhill Financial, LLC	1	$17

Not filed for Q1 2026 yet (3)

Institutions that held Dyne Therapeutics, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding DYN in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	11,215,565	$219.4M
Comerica Bank	85,339	$1.67M
Norges Bank	49,319	$964.7K