Dyne Therapeutics, Inc. - COMMON STOCK (DYN)

Historical Holders from Q3 2020 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
DYN on Nasdaq
Shares outstanding
163,926,065
Price per share
$19.56
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
155,771,786
Total reported value
$1,970,400,036
% of total 13F portfolios
0.01%
Share change
+27,199,370
Value change
+$381,733,575
Number of holders
204
Price from insider filings
$19.56
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Dyne Therapeutics, Inc. - COMMON STOCK (DYN) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
T. Rowe Price Investment Management, Inc. 11% $343,082,387 17,540,089 T. Rowe Price Investment Management, Inc. 31 Dec 2025
JANUS HENDERSON GROUP PLC 10% +3% $186,530,638 +$4,433,901 14,745,505 +2.4% JANUS HENDERSON GROUP PLC 30 Sep 2025
BlackRock, Inc. 5.8% $73,080,236 6,577,879 BlackRock, Inc. 31 Mar 2025
Atlas Venture Fund XI, L.P. 4% $72,275,396 5,713,470 Atlas Venture Associates XI, L.P. 30 Sep 2025
Forbion Capital Fund IV Cooperatief U.A. 4.8% $60,000,055 5,400,545 ForDyne B.V. 31 Mar 2025
FMR LLC 4.6% -41% $57,719,716 -$31,126,187 5,195,294 -35% FMR LLC 31 Mar 2025
RTW INVESTMENTS, LP 1.5% -72% $18,782,199 -$39,196,902 1,690,567 -68% RTW Investments, LP 31 Mar 2025
Point72 Asset Management, L.P. 1.5% -72% $18,546,390 -$39,187,803 1,669,342 -68% Point72 Asset Management, L.P. 31 Mar 2025
As of 30 Sep 2025, Dyne Therapeutics, Inc. - COMMON STOCK (DYN) has 204 institutional shareholders filing 13F forms. They hold 155,771,786 shares. of 163,926,065 outstanding shares (95%) .

Top 25 institutional shareholders own 70% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
JANUS HENDERSON GROUP PLC 9% 14,745,505 +56% 0.09% $186,489,080
VANGUARD GROUP INC 6% 9,760,414 +28% 0% $123,469,238
BlackRock, Inc. 5.9% 9,634,909 +19% 0% $121,881,599
Atlas Venture Life Science Advisors, LLC 5.6% 9,130,465 0% 15% $115,500,382
FCPM III SERVICES B.V. 3.3% 5,462,846 0% 14% $69,105,002
FMR LLC 3.3% 5,401,916 +2.1% 0% $68,334,236
STATE STREET CORP 3.2% 5,268,917 +57% 0% $66,651,800
Siren, L.L.C. 2.9% 4,729,174 -2.2% 2.3% $59,824,051
TCG Crossover Management, LLC 2.8% 4,615,144 +23% 2.9% $58,381,572
ADAGE CAPITAL PARTNERS GP, L.L.C. 2.2% 3,554,000 +11% 0.07% $44,958,100
CITADEL ADVISORS LLC 2.1% 3,413,435 +262% 0.03% $43,179,952
JPMORGAN CHASE & CO 2.1% 3,365,245 +9% 0% $42,570,350
ARMISTICE CAPITAL, LLC 1.9% 3,064,000 +20% 1.2% $38,759,600
MARSHALL WACE, LLP 1.8% 3,013,377 +573% 0.04% $38,119,219
RTW INVESTMENTS, LP 1.8% 2,890,567 +71% 0.45% $36,565,673
GEODE CAPITAL MANAGEMENT, LLC 1.7% 2,867,605 +27% 0% $36,282,012
T. Rowe Price Investment Management, Inc. 1.7% 2,812,422 +57% 0.02% $35,578,000
Vestal Point Capital, LP 1.7% 2,775,000 +281% 1.6% $35,103,750
BRAIDWELL LP 1.7% 2,730,481 -17% 1% $34,540,585
Frazier Life Sciences Management, L.P. 1.7% 2,718,105 +80% 1% $34,384,028
Saturn V Capital Management LP 1.6% 2,674,469 +84% 7.4% $33,832,033
Vivo Capital, LLC 1.6% 2,614,960 +135% 2.7% $33,079,244
Logos Global Management LP 1.5% 2,400,000 +26% 3% $30,360,000
ORBIMED ADVISORS LLC 1.4% 2,314,184 +124% 0.7% $29,274,428
VR ADVISER, LLC 1.3% 2,173,913 0% 1.5% $27,499,999

Institutional Holders of Dyne Therapeutics, Inc. - COMMON STOCK (DYN) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 267,340 $5,229,260 +$5,194,756 $19.56 5
2025 Q3 155,771,786 $1,970,400,036 +$381,733,575 $12.65 204
2025 Q2 128,553,808 $1,223,875,095 +$58,226,785 $9.52 195
2025 Q1 121,788,688 $1,284,331,056 -$75,923,327 $10.46 202
2024 Q4 111,635,776 $2,630,327,572 -$39,471,758 $23.56 199
2024 Q3 112,428,939 $4,033,469,001 -$6,349 $35.92 200
2024 Q2 110,972,098 $3,915,861,443 +$555,159,053 $35.29 191
2024 Q1 95,365,001 $2,707,385,907 +$786,881,972 $28.39 167
2023 Q4 69,922,072 $929,957,219 +$57,596,260 $13.30 123
2023 Q3 59,888,832 $536,594,556 +$1,685,315 $8.96 114
2023 Q2 59,189,838 $665,851,766 +$50,911,029 $11.25 117
2023 Q1 54,627,733 $628,721,822 +$56,536,368 $11.52 125
2022 Q4 49,732,095 $576,377,450 +$50,130,248 $11.59 112
2022 Q3 44,533,854 $565,571,380 -$9,010,573 $12.70 100
2022 Q2 46,679,856 $320,706,640 -$8,056,035 $6.87 87
2022 Q1 47,256,134 $455,432,690 -$4,233,139 $9.64 90
2021 Q4 47,794,946 $568,260,037 +$18,929,604 $11.89 90
2021 Q3 32,306,202 $524,727,164 -$16,367,213 $16.24 80
2021 Q2 35,805,078 $753,366,735 +$36,093,361 $21.04 75
2021 Q1 31,379,394 $487,292,000 +$72,426,450 $15.53 72
2020 Q4 26,339,155 $552,433,805 +$28,795,524 $21.00 67
2020 Q3 24,527,914 $493,744,000 +$493,744,015 $20.19 49