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Dyne Therapeutics
DYN

Overview Fund Activity

196 hedge funds and large institutions have $1.23B invested in Dyne Therapeutics in 2025 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 95 increasing their positions, 52 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
196
Holders Change
-8
Holders Change %
-3.92%
% of All Funds
2.63%
Holding in Top 10
6
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+20%
% of All Funds
0.08%
New
23
Increased
95
Reduced
52
Closed
30
Calls
$390K
Puts
$823K
Net Calls
-$433K
Net Calls Change
-$3.1M

Top Buyers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
$30.4M
2
SL
Siren LLC
Connecticut
$46M
3
SVCM
Saturn V Capital Management
Texas
$13.9M
4
MB
MPM BioImpact
Massachusetts
$13.8M
5
LGM
Logos Global Management
California
$18.1M

Top Sellers

1
DTC
Deep Track Capital
Connecticut
$0
2
Citadel Advisors
Citadel Advisors
Florida
$8.99M
3
Point72 Asset Management
Point72 Asset Management
Connecticut
$1.17M
4
VPC
Vestal Point Capital
New York
$6.93M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
$89.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
RCM
1
RA Capital Management
Massachusetts
$92.5M – – –
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$89.9M -$8.72M -915,454 -9%
AVLSA
3
Atlas Venture Life Science Advisors
Massachusetts
$86.9M – – –
BlackRock
4
BlackRock
New York
$76.9M +$300K +31,490 +0.4%
Vanguard Group
5
Vanguard Group
Pennsylvania
$72.8M +$2.33M +244,813 +3%
FIS
6
FCPM III Services
Netherlands
$52M – – –
Fidelity Investments
7
Fidelity Investments
Massachusetts
$50.4M +$934K +98,075 +2%
SL
8
Siren LLC
Connecticut
$46M +$20.2M +2,118,450 +78%
TCM
9
TCG Crossover Management
California
$35.9M +$10.6M +1,116,510 +42%
State Street
10
State Street
Massachusetts
$31.9M -$2.42M -253,973 -7%
B
11
Braidwell
Connecticut
$31.2M -$3.31M -347,995 -10%
Adage Capital Partners
12
Adage Capital Partners
Massachusetts
$30.4M +$30.4M +3,191,000 New
JPMorgan Chase & Co
13
JPMorgan Chase & Co
New York
$29.4M +$5.29M +555,466 +22%
AC
14
Armistice Capital
New York
$24.4M -$1.98M -208,000 -8%
T. Rowe Price Associates
15
T. Rowe Price Associates
Maryland
$22.7M +$5.37M +563,538 +31%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$21.5M +$2.84M +298,165 +15%
PA
17
Perceptive Advisors
New York
$21.4M -$628K -66,013 -3%
VA
18
VR Adviser
New York
$20.7M – – –
LGM
19
Logos Global Management
California
$18.1M +$13.3M +1,400,000 +280%
T. Rowe Price Investment Management
20
T. Rowe Price Investment Management
Maryland
$17.1M +$5.96M +625,615 +54%
RI
21
RTW Investments
New York
$16.1M – – –
FLSM
22
Frazier Life Sciences Management
California
$14.3M +$596K +62,643 +4%
SVCM
23
Saturn V Capital Management
Texas
$13.9M +$13.9M +1,455,429 New
MB
24
MPM BioImpact
Massachusetts
$13.8M +$13.8M +1,446,361 New
Franklin Resources
25
Franklin Resources
California
$13.2M -$235K -24,695 -2%
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