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Dyne Therapeutics
DYN

227 hedge funds and large institutions have $3.4B invested in Dyne Therapeutics in 2026 Q1 according to their latest regulatory filings, with 42 funds opening new positions, 100 increasing their positions, 60 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed

67% more repeat investments, than reductions

Existing positions increased: 100 | Existing positions reduced: 60

2% less capital invested

Capital invested by funds: $3.48B → $3.4B (-$78.1M)

7% less first-time investments, than exits

New positions opened: 42 | Existing positions closed: 45

2% less funds holding

Funds holding: 232 → 227 (-5)

10.74% less ownership

Funds ownership: 124.57% → 113.83% (-11%)

29% less funds holding in top 10

Funds holding in top 10: 7 → 5 (-2)

83% less call options, than puts

Call options by funds: $769K | Put options by funds: $4.47M

Holders
227
Holders Change
-5
Holders Change %
-2.16%
% of All Funds
2.79%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.06%
New
42
Increased
100
Reduced
60
Closed
45
Calls
$769K
Puts
$4.47M
Net Calls
-$3.7M
Net Calls Change
-$596K

Top Buyers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
+$228M
2
VPC
Vestal Point Capital
New York
+$66.9M
3
Fidelity Investments
Fidelity Investments
Massachusetts
+$40.3M
4
OAG
Orbis Allan Gray
Bermuda
+$33.8M
5
Fiera Capital (Canada)
Fiera Capital (Canada)
Quebec, Canada
+$23.8M

Top Sellers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$71.9M
2
SL
Siren LLC
Connecticut
-$22M
3
CS
Candriam SCA
Luxembourg
-$20.7M
4
VC
Vivo Capital
California
-$18.2M
5
Citadel Advisors
Citadel Advisors
Florida
-$16.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
SGM
126
Seven Grand Managers
New York
$635K – – –
ASRS
127
Arizona State Retirement System
Arizona
$574K +$4.17K +242 +0.8%
AssetMark Inc
128
AssetMark Inc
California
$563K +$536K +31,062 New
Creative Planning
129
Creative Planning
Kansas
$543K +$175K +10,174 +51%
IIM
130
INTECH Investment Management
Florida
$537K -$253K -14,688 -33%
CUAMC
131
China Universal Asset Management Company
China
$530K +$103K +5,946 +26%
VIA
132
Vanguard Investments Australia
Australia
$503K +$478K +27,728 New
TI
133
Trexquant Investment
Connecticut
$501K -$1.26M -73,004 -73%
BCI
134
Brinker Capital Investments
Pennsylvania
$490K +$466K +27,048 New
ProShare Advisors
135
ProShare Advisors
Maryland
$484K -$38.7K -2,243 -8%
MAM
136
Martingale Asset Management
Massachusetts
$465K +$8.66K +502 +2%
KK
137
KLP Kapitalforvaltning
Norway
$461K – – –
ECA
138
Elevate Capital Advisors
Colorado
$446K +$8.38K +486 +2%
EGM
139
Engineers Gate Manager
New York
$443K +$48.3K +2,801 +13%
AI
140
Atom Investors
Texas
$437K +$415K +24,078 New
State Board of Administration of Florida Retirement System
141
State Board of Administration of Florida Retirement System
Florida
$436K +$58.9K +3,418 +17%
EFM
142
E Fund Management
China
$417K +$397K +23,001 New
Prudential Financial
143
Prudential Financial
New Jersey
$373K +$355K +20,575 New
PR
144
PSP Research
Pennsylvania
$363K -$26.5K -1,535 -7%
Pictet Asset Management
145
Pictet Asset Management
Switzerland
$351K +$111K +6,409 +49%
QCM
146
Quantinno Capital Management
New York
$350K +$116K +6,704 +53%
ZCP
147
Z3 Capital Partners
Virginia
$347K +$70.3K +4,075 +27%
LPL Financial
148
LPL Financial
California
$333K +$53.7K +3,114 +20%
LPC
149
Lion Point Capital
New York
$326K – – –
AIP
150
Arrowpoint Investment Partners
Singapore
$312K +$48.8K +2,830 +20%
4 5
6
7 8

DYN Hedge Fund Activity: Q1 2026 in Review

227 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Dyne Therapeutics (DYN) for Q1 2026, worth a combined $3.4B — down 2.2% from $3.48B a quarter earlier.

Sellers outnumbered buyers: 45 funds closed out of DYN and 42 opened new positions — a net loss of 3 holders — while 60 trimmed existing stakes and 100 added.

The largest buyer was T. Rowe Price Investment Management, adding an estimated $228M. The largest seller was Adage Capital Partners, cutting an estimated $71.9M.

  • 227 institutional investors held Dyne Therapeutics (DYN) as of Q1 2026, down from 232 in Q4 2025.
  • Funds reported $3.4B of Dyne Therapeutics stock for Q1 2026, down 2.2% quarter-over-quarter.
  • 42 funds opened new Dyne Therapeutics positions in Q1 2026 and 45 closed out, a net change of -3 holders.
  • The largest Dyne Therapeutics buyer in Q1 2026 was T. Rowe Price Investment Management, an estimated $228M added.
  • The largest Dyne Therapeutics seller in Q1 2026 was Adage Capital Partners, an estimated $71.9M sold.

Based on aggregated 13F filings for Q1 2026.