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Dyne Therapeutics, Inc.

DYN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001818794

In the last 90 days, Dyne Therapeutics, Inc. insiders filed 0 open-market purchases and 11 sales; 245 institutions reported holding it in 13F filings for Q2 2026, worth $4.23B in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Dyne Therapeutics, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
245
+20 vs. Q1 2026
Shares held
190.6M
+16.5M (+9.4%) vs. Q1 2026
Total value
$4.23B
+$1.08B (+34.1%) vs. Q1 2026
New holders
48
89 more added
Sold out
28
76 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting DYN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 245 institutions
Q1 2021: 75 institutionsQ2 2021: 76 institutionsQ3 2021: 83 institutionsQ4 2021: 93 institutionsQ1 2022: 94 institutionsQ2 2022: 90 institutionsQ3 2022: 102 institutionsQ4 2022: 113 institutionsQ1 2023: 127 institutionsQ2 2023: 118 institutionsQ3 2023: 114 institutionsQ4 2023: 124 institutionsQ1 2024: 169 institutionsQ2 2024: 193 institutionsQ3 2024: 200 institutionsQ4 2024: 200 institutionsQ1 2025: 205 institutionsQ2 2025: 198 institutionsQ3 2025: 207 institutionsQ4 2025: 233 institutionsQ1 2026: 228 institutionsQ2 2026: 245 institutions
Value heldQ2 2026: $4.23B
Q1 2021: $533.3MQ2 2021: $753.4MQ3 2021: $572.8MQ4 2021: $568.3MQ1 2022: $456.6MQ2 2022: $320.7MQ3 2022: $565.8MQ4 2022: $576.2MQ1 2023: $628.7MQ2 2023: $665.9MQ3 2023: $536.6MQ4 2023: $930.0MQ1 2024: $2.71BQ2 2024: $3.92BQ3 2024: $4.03BQ4 2024: $2.63BQ1 2025: $1.29BQ2 2025: $1.22BQ3 2025: $1.97BQ4 2025: $3.48BQ1 2026: $3.40BQ2 2026: $4.23B
Institutions holding DYN and their total value by quarter
QuarterHoldersValue
Q2 2026245$4.23B
Q1 2026228$3.40B
Q4 2025233$3.48B
Q3 2025207$1.97B
Q2 2025198$1.22B
Q1 2025205$1.29B
Q4 2024200$2.63B
Q3 2024200$4.03B
Q2 2024193$3.92B
Q1 2024169$2.71B
Q4 2023124$930.0M
Q3 2023114$536.6M
Q2 2023118$665.9M
Q1 2023127$628.7M
Q4 2022113$576.2M
Q3 2022102$565.8M
Q2 202290$320.7M
Q1 202294$456.6M
Q4 202193$568.3M
Q3 202183$572.8M
Q2 202176$753.4M
Q1 202175$533.3M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Dyne Therapeutics, Inc.; share changes are against Q1 2026.

Institutions holding DYN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
T. Rowe Price Investment Management, Inc.30,912,287$686.6M0.45%+126,486+0.4%Added
BlackRock, Inc.12,404,330$275.5M0.00%+704,460+6.0%Added
Jupiter Topco LLC11,997,738$266.6M0.11%+11,997,738New
FMR LLC11,207,000$248.9M0.01%+2,298,020+25.8%Added
State Street Corp7,458,263$165.6M0.00%+804,517+12.1%Added
Orbis Allan Gray Ltd7,006,542$155.6M0.53%+244,311+3.6%Added
Atlas Venture Life Science Advisors, LLC6,800,099$151.0M17.14%−2,330,366−25.5%Reduced
Vanguard Capital Management LLC6,310,969$140.2M0.00%−94,100−1.5%Reduced
TCG Crossover Management, LLC4,615,144$102.5M2.46%00.0%Unchanged
Vanguard Portfolio Management LLC4,048,428$89.9M0.00%−113,613−2.7%Reduced
Price T Rowe Associates Inc3,936,806$87.4M0.01%+1,608,433+69.1%Added
FCPM III Services B.V.3,848,256$85.5M11.39%−796,130−17.1%Reduced
Geode Capital Management, LLC3,743,427$83.2M0.00%+239,313+6.8%Added
Vestal Point Capital, LP3,375,000$75.0M1.75%−625,000−15.6%Reduced
OrbiMed Advisors LLC3,235,684$71.9M1.36%+317,800+10.9%Added
Frazier Life Sciences Management, L.P.3,153,082$70.0M1.53%00.0%Unchanged
Armistice Capital, LLC3,087,226$68.6M1.90%−87,884−2.8%Reduced
JPMorgan Chase & Co3,151,656$67.2M0.00%−101,817−3.1%Reduced
Perceptive Advisors LLC2,689,235$59.7M0.93%−1,979,604−42.4%Reduced
Logos Global Management LP2,550,000$56.6M2.44%+1,150,000+82.1%Added
Bank of America Corp2,233,398$49.6M0.00%+790,085+54.7%Added
VR Adviser, LLC2,173,913$48.3M1.46%00.0%Unchanged
Goldman Sachs Group Inc2,157,195$47.9M0.01%+434,079+25.2%Added
Siren, L.L.C.2,129,125$47.3M0.96%−100,000−4.5%Reduced
Franklin Resources Inc2,030,819$45.1M0.01%+21,737+1.1%Added
Dimensional Fund Advisors LP1,946,479$43.2M0.01%+994,890+104.6%Added
MPM Oncology Impact Management LP1,922,093$42.7M2.60%+513,941+36.5%Added
Samlyn Capital, LLC1,754,708$39.0M0.65%−167,835−8.7%Reduced
Sofinnova Investments, Inc.1,658,384$36.8M1.97%+24,487+1.5%Added
Palo Alto Investors LP1,647,521$36.6M5.06%−5,451−0.3%Reduced
Vivo Capital, LLC1,557,466$34.6M3.16%00.0%Unchanged
Standard Life Aberdeen plc1,539,434$34.2M0.05%+109,050+7.6%Added
Deep Track Capital, LP1,500,000$33.3M0.49%−500,000−25.0%Reduced
Marshall Wace, LLP1,488,917$33.1M0.03%+1,405,770+1,690.7%Added
Polar Capital Holdings Plc1,286,811$28.6M0.08%−72,358−5.3%Reduced
Northern Trust Corp1,278,081$28.4M0.00%+79,243+6.6%Added
Charles Schwab Investment Management Inc1,202,203$26.7M0.00%+43,813+3.8%Added
Citadel Advisors LLC1,143,958$25.4M0.01%+942,814+468.7%Added
Saturn V Capital Management LLC1,057,493$23.5M3.37%+90,884+9.4%Added
Vanguard Fiduciary Trust Co988,949$22.0M0.00%+41,511+4.4%Added
Novo Holdings A/S960,394$21.3M1.24%+960,394New
Rock Springs Capital Management LP942,154$20.9M1.02%−30,044−3.1%Reduced
Braidwell LP921,598$20.5M0.76%−760,400−45.2%Reduced
Frontier Capital Management Co LLC874,138$19.4M0.18%+52,289+6.4%Added
Baker Bros. Advisors LP813,449$18.1M0.09%00.0%Unchanged
Fiera Capital Corp789,989$17.5M0.06%−590,631−42.8%Reduced
Morgan Stanley746,200$16.6M0.00%−182,803−19.7%Reduced
Artisan Partners Limited Partnership659,786$14.7M0.02%+40,329+6.5%Added
Raymond James Financial Inc576,350$12.8M0.00%+124,706+27.6%Added
TD Asset Management Inc548,112$12.2M0.01%+18,800+3.6%Added
Algert Global LLC506,273$11.2M0.13%+51,810+11.4%Added
Wasatch Advisors Inc443,668$9.85M0.06%00.0%Unchanged
UBS Group AG443,284$9.85M0.00%+62,723+16.5%Added
Millennium Management LLC431,850$9.59M0.01%+273,302+172.4%Added
Clearbridge Investments, LLC415,131$9.22M0.01%+11,906+3.0%Added
Bank of New York Mellon Corp409,801$9.10M0.00%+8,185+2.0%Added
ArrowMark Colorado Holdings LLC397,221$8.82M0.37%−276,728−41.1%Reduced
Nuveen, LLC386,787$8.59M0.00%−331,546−46.2%Reduced
Renaissance Technologies LLC360,572$8.01M0.01%−173,028−32.4%Reduced
Polygon Management Ltd.356,657$7.92M1.29%+98,525+38.2%Added
New York State Common Retirement Fund355,953$7.91M0.01%+22,456+6.7%Added
Granahan Investment Management Inc338,565$7.52M0.27%+338,565New
University of Wisconsin Foundation313,559$6.96M5.51%−171,186−35.3%Reduced
Moore Capital Management, LP305,794$6.79M0.15%+227,029+288.2%Added
Squarepoint Ops LLC300,074$6.66M0.01%−534,102−64.0%Reduced
Fisher Asset Management, LLC298,505$6.63M0.00%−24,546−7.6%Reduced
Ameriprise Financial Inc298,317$6.63M0.00%+135,345+83.0%Added
Ensign Peak Advisors, Inc289,730$6.43M0.01%−206,860−41.7%Reduced
UBS Asset Management Americas Inc269,985$6.00M0.00%+30,700+12.8%Added
Alyeska Investment Group, L.P.245,278$5.45M0.01%+245,278New
Catalio Capital Management, LP244,929$5.44M1.02%−38,025−13.4%Reduced
Deutsche Bank AG242,392$5.38M0.00%+21,269+9.6%Added
Swiss National Bank232,000$5.15M0.00%+3,900+1.7%Added
Wells Fargo & Company220,664$4.90M0.00%+75,155+51.6%Added
Sphera Funds Management Ltd.199,594$4.43M0.63%+39,000+24.3%Added
SummitTX Capital, L.P.194,643$4.32M0.11%−1,545−0.8%Reduced
Citigroup Inc187,915$4.17M0.00%+150,118+397.2%Added
Rhumbline Advisers183,799$4.08M0.00%−3,424−1.8%Reduced
Voya Investment Management LLC174,457$3.87M0.00%+87,848+101.4%Added
HighVista Strategies LLC171,961$3.82M0.87%−10,968−6.0%Reduced
Alps Advisors Inc167,082$3.71M0.02%+167,082New
Invesco Ltd.164,598$3.66M0.00%−84,343−33.9%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.157,916$3.51M0.00%−6,971−4.2%Reduced
Y-Intercept (Hong Kong) Ltd156,203$3.47M0.07%+91,045+139.7%Added
Axxcess Wealth Management, LLC155,270$3.45M0.05%+155,270New
Darwin Advisors, LLC155,270$3.45M0.94%+408+0.3%Added
Aegis Wealth Management LLC150,030$3.33M1.57%+15,000+11.1%Added
Adage Capital Partners GP, L.L.C.150,000$3.33M0.00%−850,000−85.0%Reduced
Woodline Partners LP149,388$3.32M0.01%00.0%Unchanged
Alliancebernstein L.P.172,080$3.12M0.00%+36,140+26.6%Added
California State Teachers Retirement System135,147$3.00M0.00%−4,516−3.2%Reduced
Schonfeld Strategic Advisors LLC134,752$2.99M0.02%+134,752New
XTX Topco Ltd125,786$2.79M0.04%+83,076+194.5%Added
Jain Global LLC116,341$2.58M0.03%+116,341New
Rafferty Asset Management, LLC115,102$2.56M0.01%−67,875−37.1%Reduced
Russell Investments Group, Ltd.105,553$2.34M0.00%+65,517+163.6%Added
Legal & General Group Plc97,940$2.18M0.00%+1,478+1.5%Added
SG Americas Securities, LLC97,648$2.17M0.00%−14,978−13.3%Reduced
Fideuram - Intesa Sanpaolo Private Banking S.P.A.87,069$1.93M0.06%+87,069New
AQR Capital Management LLC84,054$1.87M0.00%−184−0.2%Reduced