Dyne Therapeutics, Inc. (DYN) — Institutional Holders, Q2 2026

246 institutional investment managers reported a DYN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.2B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← DYN stock profile

DYN in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

FMRAdded · +2,298,020 sh+$51.0M
PRICE T ROWE ASSOCIATESAdded · +1,608,433 sh+$35.7M
MARSHALL WACE, LLPAdded · +1,405,770 sh+$31.2M
Logos Global ManagementAdded · +1,150,000 sh+$25.5M
DIMENSIONAL FUND ADVISORSAdded · +994,890 sh+$22.1M

Biggest sellers

Atlas Venture Life Science AdvisorsTrimmed · -2,330,366 sh-$51.8M
PERCEPTIVE ADVISORSTrimmed · -1,979,604 sh-$44.0M
ADAGE CAPITAL PARTNERS GP, L.L.C.Trimmed · -850,000 sh-$18.9M
FCPM III SERVICES B.V.Trimmed · -796,130 sh-$17.7M
BRAIDWELLTrimmed · -760,400 sh-$16.9M

DYN 13F holders ranked 1–100 of 246

Institutional investors reporting a position in Dyne Therapeutics, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	T. Rowe Price Investment Management#1 · 30,912,287 sh	30,912,287	$686.6M	0.45%	+0.4%
2	BlackRock#2 · 12,404,330 sh	12,404,330	$275.5M	<0.01%	+6.0%
3	Jupiter Topco#3 · 11,997,738 sh	11,997,738	$266.6M	0.11%	—
4	FMR#4 · 11,207,000 sh	11,207,000	$248.9M	0.01%	+25.8%
5	STATE STREET#5 · 7,458,263 sh	7,458,263	$165.6M	<0.01%	+12.1%
6	Orbis Allan Gray Ltd#6 · 7,006,542 sh	7,006,542	$155.6M	0.53%	+3.6%
7	Atlas Venture Life Science Advisors#7 · 6,800,099 sh	6,800,099	$151.0M	17.14%	-25.5%
8	VANGUARD CAPITAL MANAGEMENT#8 · 6,310,969 sh	6,310,969	$140.2M	<0.01%	-1.5%
9	TCG Crossover Management#9 · 4,615,144 sh	4,615,144	$102.5M	2.46%	0.0%
10	VANGUARD PORTFOLIO MANAGEMENT#10 · 4,048,428 sh	4,048,428	$89.9M	<0.01%	-2.7%
11	PRICE T ROWE ASSOCIATES#11 · 3,936,806 sh	3,936,806	$87.4M	<0.01%	+69.1%
12	FCPM III SERVICES B.V.#12 · 3,848,256 sh	3,848,256	$85.5M	11.39%	-17.1%
13	GEODE CAPITAL MANAGEMENT#13 · 3,743,427 sh	3,743,427	$83.2M	<0.01%	+6.8%
14	Vestal Point Capital#14 · 3,375,000 sh	3,375,000	$75.0M	1.75%	-15.6%
15	ORBIMED ADVISORS#15 · 3,235,684 sh	3,235,684	$71.9M	1.33%	+10.9%
16	Frazier Life Sciences Management, L.P.#16 · 3,153,082 sh	3,153,082	$70.0M	1.52%	0.0%
17	ARMISTICE CAPITAL#17 · 3,087,226 sh	3,087,226	$68.6M	0.84%	-2.8%
18	JPMORGAN CHASE#18 · 3,151,656 sh	3,151,656	$67.2M	<0.01%	-3.1%
19	PERCEPTIVE ADVISORS#19 · 2,689,235 sh	2,689,235	$59.7M	0.90%	-42.4%
20	Logos Global Management#20 · 2,550,000 sh	2,550,000	$56.6M	2.44%	+82.1%
21	BANK OF AMERICA#21 · 2,233,398 sh	2,233,398	$49.6M	<0.01%	+54.7%
22	VR Adviser#22 · 2,173,913 sh	2,173,913	$48.3M	1.46%	0.0%
23	GOLDMAN SACHS GROUP#23 · 2,157,195 sh	2,157,195	$47.9M	<0.01%	+25.2%
24	Siren, L.L.C.#24 · 2,129,125 sh	2,129,125	$47.3M	0.96%	-4.5%
25	FRANKLIN RESOURCES#25 · 2,030,819 sh	2,030,819	$45.1M	<0.01%	+1.1%
26	DIMENSIONAL FUND ADVISORS#26 · 1,946,479 sh	1,946,479	$43.2M	<0.01%	+104.6%
27	MPM BioImpact#27 · 1,922,093 sh	1,922,093	$42.7M	2.60%	+36.5%
28	SAMLYN CAPITAL#28 · 1,754,708 sh	1,754,708	$39.0M	0.63%	-8.7%
29	Sofinnova Ventures#29 · 1,658,384 sh	1,658,384	$36.8M	1.90%	+1.5%
30	Palo Alto Investors#30 · 1,647,521 sh	1,647,521	$36.6M	5.06%	-0.3%
31	Vivo Capital#31 · 1,557,466 sh	1,557,466	$34.6M	3.16%	0.0%
32	abrdn plc#32 · 1,539,434 sh	1,539,434	$34.2M	0.05%	+7.6%
33	Deep Track Capital#33 · 1,500,000 sh	1,500,000	$33.3M	0.48%	-25.0%
34	MARSHALL WACE, LLP#34 · 1,488,917 sh	1,488,917	$33.1M	0.03%	+1690.7%
35	Polar Capital Plc#35 · 1,286,811 sh	1,286,811	$28.6M	0.07%	-5.3%
36	NORTHERN#36 · 1,278,081 sh	1,278,081	$28.4M	<0.01%	+6.6%
37	CHARLES SCHWAB INVESTMENT MANAGEMENT#37 · 1,202,203 sh	1,202,203	$26.7M	<0.01%	+3.8%
38	CITADEL ADVISORS#38 · 1,143,958 sh	1,143,958	$25.4M	<0.01%	+468.7%
39	Saturn V Capital Management#39 · 1,057,493 sh	1,057,493	$23.5M	3.37%	+9.4%
40	VANGUARD FIDUCIARY#40 · 988,949 sh	988,949	$22.0M	<0.01%	+4.4%
41	Novo A/S#41 · 960,394 sh	960,394	$21.3M	1.24%	New
42	Rock Springs Capital Management#42 · 942,154 sh	942,154	$20.9M	1.02%	-3.1%
43	BRAIDWELL#43 · 921,598 sh	921,598	$20.5M	0.76%	-45.2%
44	FRONTIER CAPITAL MANAGEMENT#44 · 874,138 sh	874,138	$19.4M	0.18%	+6.4%
45	BAKER BROS. ADVISORS#45 · 813,449 sh	813,449	$18.1M	0.09%	0.0%
46	Fiera Capital#46 · 789,989 sh	789,989	$17.5M	0.06%	-42.8%
47	MORGAN STANLEY#47 · 746,200 sh	746,200	$16.6M	<0.01%	-19.7%
48	Artisan Partners Limited Partnership#48 · 659,786 sh	659,786	$14.7M	0.02%	+6.5%
49	RAYMOND JAMES FINANCIAL#49 · 576,350 sh	576,350	$12.8M	<0.01%	+27.6%
50	TD ASSET MANAGEMENT#50 · 548,112 sh	548,112	$12.2M	0.01%	+3.6%
51	ALGERT GLOBAL#51 · 506,273 sh	506,273	$11.2M	0.13%	+11.4%
52	WASATCH ADVISORS#52 · 443,668 sh	443,668	$9.9M	—	0.0%
53	UBS Group AG#53 · 443,284 sh	443,284	$9.8M	<0.01%	+16.5%
54	MILLENNIUM MANAGEMENT#54 · 431,850 sh	431,850	$9.6M	<0.01%	+172.4%
55	Clearbridge Investments#55 · 415,131 sh	415,131	$9.2M	<0.01%	+3.0%
56	Bank of New York Mellon#56 · 409,801 sh	409,801	$9.1M	<0.01%	+2.0%
57	ArrowMark Colorado#57 · 397,221 sh	397,221	$8.8M	0.37%	-41.1%
58	Nuveen#58 · 386,787 sh	386,787	$8.6M	<0.01%	-46.2%
59	RENAISSANCE TECHNOLOGIES#59 · 360,572 sh	360,572	$8.0M	0.01%	-32.4%
60	TFG Asset Management GP Ltd#60 · 356,657 sh	356,657	$7.9M	1.25%	+38.2%
61	NEW YORK STATE COMMON RETIREMENT FUND#61 · 355,953 sh	355,953	$7.9M	0.01%	+6.7%
62	Granahan Investment Management#62 · 338,565 sh	338,565	$7.5M	0.27%	New
63	University of Wisconsin Foundation#63 · 313,559 sh	313,559	$7.0M	5.51%	-35.3%
64	MOORE CAPITAL MANAGEMENT#64 · 305,794 sh	305,794	$6.8M	0.10%	+288.2%
65	Squarepoint Ops#65 · 300,074 sh	300,074	$6.7M	<0.01%	-64.0%
66	Fisher Asset Management#66 · 298,505 sh	298,505	$6.6M	<0.01%	-7.6%
67	AMERIPRISE FINANCIAL#67 · 298,317 sh	298,317	$6.6M	<0.01%	+83.0%
68	Ensign Peak Advisors#68 · 289,730 sh	289,730	$6.4M	0.01%	-41.7%
69	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#69 · 269,985 sh	269,985	$6.0M	<0.01%	+12.8%
70	Alyeska Investment Group, L.P.#70 · 245,278 sh	245,278	$5.4M	0.01%	New
71	Catalio Capital Management#71 · 244,929 sh	244,929	$5.4M	1.02%	-13.4%
72	DEUTSCHE BANK AG\#72 · 242,392 sh	242,392	$5.4M	<0.01%	+9.6%
73	Swiss National Bank#73 · 232,000 sh	232,000	$5.2M	<0.01%	+1.7%
74	WELLS FARGO & COMPANY#74 · 220,664 sh	220,664	$4.9M	<0.01%	+51.6%
75	SPHERA FUNDS MANAGEMENT LTD.#75 · 199,594 sh	199,594	$4.4M	0.58%	+24.3%
76	SummitTX Capital, L.P.#76 · 194,643 sh	194,643	$4.3M	0.11%	-0.8%
77	CITIGROUP#77 · 187,915 sh	187,915	$4.2M	<0.01%	+397.2%
78	RHUMBLINE ADVISERS#78 · 183,799 sh	183,799	$4.1M	<0.01%	-1.8%
79	VOYA INVESTMENT MANAGEMENT#79 · 174,457 sh	174,457	$3.9M	<0.01%	+101.4%
80	HighVista Strategies#80 · 171,961 sh	171,961	$3.8M	0.87%	-6.0%
81	ALPS ADVISORS#81 · 167,082 sh	167,082	$3.7M	0.02%	New
82	Invesco Ltd.#82 · 164,598 sh	164,598	$3.7M	<0.01%	-33.9%
83	BNP Paribas Asset Management Holding S.A.#83 · 157,916 sh	157,916	$3.5M	<0.01%	-4.2%
84	Y-Intercept (Hong Kong) Ltd#84 · 156,203 sh	156,203	$3.5M	—	+139.7%
85	AXXCESS WEALTH MANAGEMENT#85 · 155,270 sh	155,270	$3.4M	—	New
86	Darwin Wealth Management#86 · 155,270 sh	155,270	$3.4M	0.94%	+0.3%
87	Aegis Wealth Management#87 · 150,030 sh	150,030	$3.3M	1.57%	+11.1%
88	ADAGE CAPITAL PARTNERS GP, L.L.C.#88 · 150,000 sh	150,000	$3.3M	<0.01%	-85.0%
89	Woodline Partners#89 · 149,388 sh	149,388	$3.3M	0.01%	0.0%
90	ALLIANCEBERNSTEIN L.P.#90 · 172,080 sh	172,080	$3.1M	<0.01%	+26.6%
91	Schonfeld Strategic Advisors#91 · 134,752 sh	134,752	$3.0M	0.01%	New
92	XTX Topco Ltd#92 · 125,786 sh	125,786	$2.8M	0.04%	+194.5%
93	Jain Global#93 · 116,341 sh	116,341	$2.6M	0.01%	New
94	Rafferty Asset Management#94 · 115,102 sh	115,102	$2.6M	<0.01%	-37.1%
95	Russell Investments Group, Ltd.#95 · 105,553 sh	105,553	$2.3M	<0.01%	+163.6%
96	Legal & General Group Plc#96 · 97,940 sh	97,940	$2.2M	<0.01%	+1.5%
97	SG Americas Securities#97 · 97,648 sh	97,648	$2.2M	<0.01%	-13.3%
98	FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A.#98 · 87,069 sh	87,069	$1.9M	—	New
99	AQR CAPITAL MANAGEMENT#99 · 84,054 sh	84,054	$1.9M	<0.01%	-0.2%
100	VANGUARD ASSET MANAGEMENT, Ltd#100 · 81,238 sh	81,238	$1.8M	<0.01%	+10.8%

Funds that sold out of DYN in Q2 2026 (29)

Held DYN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held DYN in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
StemPoint Capital506,075 sh	506,075	$9.2M
Qube Research & Technologies Ltd253,153 sh	253,153	$4.6M
PDT Partners182,986 sh	182,986	$3.3M
Burkehill Global Management155,000 sh	155,000	$2.8M
Man Group plc95,682 sh	95,682	$1.7M
TUDOR INVESTMENT ET AL77,031 sh	77,031	$1.4M
Trexquant Investment27,641 sh	27,641	$501.1K
MARTINGALE ASSET MANAGEMENT L P25,654 sh	25,654	$465.1K
Engineers Gate Manager24,420 sh	24,420	$442.7K
Arrowpoint Investment Partners (Singapore) Pte. Ltd.17,213 sh	17,213	$312.1K
STONERIDGE INVESTMENT PARTNERS16,611 sh	16,611	$301.0K
Graham Capital Management, L.P.13,172 sh	13,172	$238.8K
Inspire Advisors11,845 sh	11,845	$214.7K
CAPSTONE INVESTMENT ADVISORS11,217 sh	11,217	$203.4K
Jump Financial10,610 sh	10,610	$192.4K
Scientech Research10,564 sh	10,564	$191.5K
Caitong International Asset Management , Ltd10,405 sh	10,405	$188.6K
STEPHENS10,118 sh	10,118	$183.4K
FARALLON CAPITAL MANAGEMENT10,000 sh	10,000	$181.3K
QUADRANT CAPITAL GROUP134 sh	134	$50.2K
Quantbot Technologies1,098 sh	1,098	$19.9K
Western Wealth Management240 sh	240	$4.4K
NATIONAL BANK OF CANADA200 sh	200	$3.6K
Aster Capital Management (DIFC) Ltd226 sh	226	$2.4K
MAI Capital Management113 sh	113	$2.0K
Advisory Services Network29 sh	29	$526.00
Bare Financial Services28 sh	28	$508.00
TWIN PEAKS WEALTH ADVISORS14 sh	14	$254.00
CREATIVE FINANCIAL DESIGNS10 sh	10	$181.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.