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Dyne Therapeutics

232 hedge funds and large institutions have $3.48B invested in Dyne Therapeutics in 2025 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 95 increasing their positions, 58 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

103% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 29

76% more capital invested

Capital invested by funds: $1.97B → $3.48B (+$1.51B)

64% more repeat investments, than reductions

Existing positions increased: 95 | Existing positions reduced: 58

15.03% more ownership

Funds ownership: 109.54%124.57% (+15%)

12% more funds holding

Funds holding: 207232 (+25)

0% more funds holding in top 10

Funds holding in top 10: 77 (0)

38% less call options, than puts

Call options by funds: $5.14M | Put options by funds: $8.24M

Holders
232
Holders Change
+25
Holders Change %
+12.08%
% of All Funds
2.82%
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.09%
New
59
Increased
95
Reduced
58
Closed
29
Calls
$5.14M
Puts
$8.24M
Net Calls
-$3.11M
Net Calls Change
-$2.34M
Name Holding Trade Value Shares
Change
Change in
Stake
T. Rowe Price Investment Management
1
T. Rowe Price Investment Management
Maryland
$343M +$279M +14,727,667 +524%
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$272M -$16.2M -857,783 -6%
Vanguard Group
3
Vanguard Group
Pennsylvania
$219M +$27.6M +1,455,151 +15%
BlackRock
4
BlackRock
New York
$219M +$29.5M +1,555,929 +16%
AVLSA
5
Atlas Venture Life Science Advisors
Massachusetts
$179M
State Street
6
State Street
Massachusetts
$131M +$27M +1,423,828 +27%
Fidelity Investments
7
Fidelity Investments
Massachusetts
$129M +$22.1M +1,168,005 +22%
FIS
8
FCPM III Services
Netherlands
$107M
Adage Capital Partners
9
Adage Capital Partners
Massachusetts
$101M +$30.6M +1,618,000 +46%
OAG
10
Orbis Allan Gray
Bermuda
$93.9M +$90.9M +4,801,928 New
TCM
11
TCG Crossover Management
California
$90.3M
JP Morgan Chase
12
JP Morgan Chase
New York
$69.4M +$3.5M +184,664 +5%
SL
13
Siren LLC
Connecticut
$68.5M -$23.2M -1,226,233 -26%
PA
14
Perceptive Advisors
New York
$68M +$55.6M +2,938,500 +544%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$63.8M +$7.5M +395,824 +14%
AC
16
Armistice Capital
New York
$63.6M +$3.52M +185,708 +6%
FLSM
17
Frazier Life Sciences Management
California
$61.7M +$8.24M +434,977 +16%
DTC
18
Deep Track Capital
Connecticut
$51.8M +$12.3M +650,000 +33%
VC
19
Vivo Capital
California
$51.1M
T. Rowe Price Associates
20
T. Rowe Price Associates
Maryland
$45.5M +$17.5M +925,702 +66%
Goldman Sachs
21
Goldman Sachs
New York
$44.7M +$7.25M +382,976 +20%
SI
22
Sofinnova Investments
California
$44.1M +$24M +1,268,333 +129%
O
23
OrbiMed
New York
$43.1M -$2.12M -112,000 -5%
VA
24
VR Adviser
New York
$42.5M
Franklin Resources
25
Franklin Resources
California
$39.2M +$11.5M +608,108 +43%

DYN Hedge Fund Activity: Q4 2025 in Review

232 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Dyne Therapeutics (DYN) for Q4 2025, worth a combined $3.48B — up 76% from $1.97B a quarter earlier.

Buyers outnumbered sellers: 59 funds opened new DYN positions and 29 closed out — a net gain of 30 holders — while 95 added to existing stakes and 58 trimmed.

The largest buyer was T. Rowe Price Investment Management, adding an estimated $279M. The largest seller was Vestal Point Capital, cutting an estimated $50.3M.

  • 232 institutional investors held Dyne Therapeutics (DYN) as of Q4 2025, up from 207 in Q3 2025.
  • Funds reported $3.48B of Dyne Therapeutics stock for Q4 2025, up 76% quarter-over-quarter.
  • 59 funds opened new Dyne Therapeutics positions in Q4 2025 and 29 closed out, a net change of +30 holders.
  • The largest Dyne Therapeutics buyer in Q4 2025 was T. Rowe Price Investment Management, an estimated $279M added.
  • The largest Dyne Therapeutics seller in Q4 2025 was Vestal Point Capital, an estimated $50.3M sold.

Based on aggregated 13F filings for Q4 2025.