DYNE THERAPEUTICS INC (DYN) Institutional Shareholders
DYNE THERAPEUTICS INC (DYN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.41B in DYN holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of DYN tracked by InsiderSet, reporting ownership valued at approximately $275.50M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $324.37M, representing an estimated gain of +17.74% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 49% of the total disclosed DYN value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Fmr Llc, Janus Henderson Group Plc, and several other long-term asset managers with concentrated positions in DYNE THERAPEUTICS INC (DYN).
This page ranks the largest institutional DYN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
240
Total Reported Value
$3.41B
Largest Holder
Blackrock, Inc.
Largest Position
$275.50M
Insider Transactions (90d)
50
Latest Filing Quarter
Q2 2026
New Institutional Positions
62
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 12,404,330 | $275,500,169 | $324,373,230 | +$48,873,061 | +17.74% | |
| Fmr Llc | 0.01% | 11,207,000 | $248,907,468 | $293,063,050 | +$44,155,582 | +17.74% | |
| Janus Henderson Group Plc | 0.12% | 13,647,376 | $247,426,927 | $356,878,882 | +$109,451,955 | +44.24% | |
| State Street Corp | 0.00% | 7,458,263 | $165,648,021 | $195,033,577 | +$29,385,556 | +17.74% | |
| Orbis Allan Gray Ltd | 0.53% | 7,006,542 | $155,615,298 | $183,221,073 | +$27,605,775 | +17.74% | |
| Atlas Venture Life Science Advisors, Llc | 17.14% | 6,800,099 | $151,030,199 | $177,822,589 | +$26,792,390 | +17.74% | |
| Vanguard Capital Management Llc | 0.00% | 6,310,969 | $140,166,621 | $165,031,839 | +$24,865,218 | +17.74% | |
| Tcg Crossover Management, Llc | 2.46% | 4,615,144 | $102,502,348 | $120,686,016 | +$18,183,668 | +17.74% | |
| Vanguard Portfolio Management Llc | 0.00% | 4,048,428 | $89,915,586 | $105,866,392 | +$15,950,806 | +17.74% | |
| Fcpm Iii Services B.V. | 11.39% | 3,848,256 | $85,469,766 | $100,631,894 | +$15,162,128 | +17.74% | |
| Geode Capital Management, Llc | 0.00% | 3,743,427 | $83,158,757 | $97,890,616 | +$14,731,859 | +17.72% | |
| Vestal Point Capital, Lp | 1.75% | 3,375,000 | $74,958,750 | $88,256,250 | +$13,297,500 | +17.74% | |
| Orbimed Advisors Llc | 1.36% | 3,235,684 | $71,864,542 | $84,613,137 | +$12,748,595 | +17.74% | |
| Frazier Life Sciences Management, L.P. | 1.53% | 3,153,082 | $70,029,951 | $82,453,094 | +$12,423,143 | +17.74% | |
| Armistice Capital, Llc | 1.90% | 3,087,226 | $68,567,289 | $80,730,960 | +$12,163,671 | +17.74% | |
| Jpmorgan Chase & Co | 0.00% | 3,151,656 | $67,154,494 | $82,415,804 | +$15,261,310 | +22.73% | |
| Perceptive Advisors Llc | 0.93% | 2,689,235 | $59,727,909 | $70,323,495 | +$10,595,586 | +17.74% | |
| Logos Global Management Lp | 2.44% | 2,550,000 | $56,635,500 | $66,682,500 | +$10,047,000 | +17.74% | |
| Bank Of America Corp | 0.00% | 2,233,398 | $49,603,770 | $58,403,358 | +$8,799,588 | +17.74% | |
| Venrock Adviser, Llc | 1.46% | 2,173,913 | $48,282,608 | $56,847,825 | +$8,565,217 | +17.74% | |
| Goldman Sachs Group Inc | 0.01% | 2,157,195 | $47,911,301 | $56,410,649 | +$8,499,348 | +17.74% | |
| Siren, L.L.C. | 0.96% | 2,129,125 | $47,287,866 | $55,676,619 | +$8,388,753 | +17.74% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,946,479 | $43,221,836 | $50,900,426 | +$7,678,590 | +17.77% | |
| Mpm Bioimpact Llc | 2.60% | 1,922,093 | $42,689,686 | $50,262,732 | +$7,573,046 | +17.74% | |
| Samlyn Capital, Llc | 0.65% | 1,754,708 | $38,972,065 | $45,885,614 | +$6,913,549 | +17.74% | |
| Sofinnova Investments, Inc. | 1.97% | 1,658,384 | $36,832,709 | $43,366,742 | +$6,534,033 | +17.74% | |
| Palo Alto Investors Lp | 5.06% | 1,647,521 | $36,591,441 | $43,082,674 | +$6,491,233 | +17.74% | |
| Vivo Capital, Llc | 3.16% | 1,557,466 | $34,591,320 | $40,727,736 | +$6,136,416 | +17.74% | |
| Aberdeen Group Plc | 0.05% | 1,539,434 | $34,190,829 | $40,256,199 | +$6,065,370 | +17.74% | |
| Deep Track Capital, Lp | 0.49% | 1,500,000 | $33,315,000 | $39,225,000 | +$5,910,000 | +17.74% | |
| Marshall Wace, Llp | 0.03% | 1,488,917 | $33,068,847 | $38,935,180 | +$5,866,333 | +17.74% | |
| Polar Capital Holdings Plc | 0.08% | 1,286,811 | $28,580,072 | $33,650,108 | +$5,070,036 | +17.74% | |
| Northern Trust Corp | 0.00% | 1,278,081 | $28,386,180 | $33,421,818 | +$5,035,638 | +17.74% | |
| Charles Schwab Investment Management Inc | 0.00% | 1,202,203 | $26,700,929 | $31,437,608 | +$4,736,679 | +17.74% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 1,202,203 | $26,700,929 | $31,437,608 | +$4,736,679 | +17.74% | |
| Citadel Advisors Llc | 0.01% | 1,143,958 | $25,407,307 | $29,914,502 | +$4,507,195 | +17.74% | |
| Saturn V Capital Management Lp | 3.37% | 1,057,493 | $23,486,920 | $27,653,442 | +$4,166,522 | +17.74% | |
| Vanguard Fiduciary Trust Co | 0.00% | 988,949 | $21,964,557 | $25,861,016 | +$3,896,459 | +17.74% | |
| Novo Holdings A/S | 1.24% | 960,394 | $21,330,351 | $25,114,303 | +$3,783,952 | +17.74% | |
| Rock Springs Capital Management Lp | 1.02% | 942,154 | $20,925,240 | $24,637,327 | +$3,712,087 | +17.74% | |
| Braidwell Lp | 0.76% | 921,598 | $20,468,692 | $24,099,788 | +$3,631,096 | +17.74% | |
| Frontier Capital Management Co Llc | 0.18% | 874,138 | $19,414,605 | $22,858,709 | +$3,444,104 | +17.74% | |
| Baker Bros. Advisors Lp | 0.09% | 813,449 | $18,066,702 | $21,271,691 | +$3,204,989 | +17.74% | |
| Fiera Capital Corp | 0.06% | 789,989 | $17,545,656 | $20,658,212 | +$3,112,556 | +17.74% | |
| Morgan Stanley | 0.00% | 746,200 | $16,573,116 | $19,513,130 | +$2,940,014 | +17.74% | |
| Artisan Partners Limited Partnership | 0.02% | 659,786 | $14,653,847 | $17,253,404 | +$2,599,557 | +17.74% | |
| Raymond James Financial Inc | 0.00% | 576,350 | $12,800,733 | $15,071,553 | +$2,270,820 | +17.74% | |
| Td Asset Management Inc | 0.01% | 548,112 | $12,173,568 | $14,333,129 | +$2,159,561 | +17.74% | |
| Algert Global Llc | 0.13% | 506,273 | $11,244,323 | $13,239,039 | +$1,994,716 | +17.74% | |
| Wasatch Advisors Lp | 0.06% | 443,668 | $9,853,866 | $11,601,918 | +$1,748,052 | +17.74% |
Frequently asked questions about DYN
Who owns the most DYN stock?
The largest holders of DYN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for DYNE THERAPEUTICS INC (DYN).
Is DYN widely held by superinvestors?
Many widely followed stocks like DYN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly DYN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.