DYN

Dyne Therapeutics INC

-$85.0M

Net Activity

Institutions Holding

227

Popularity Rank

#2589

Avg Weight

0.38%

Total Value

$3.4B

Ownership Trend

227 institutions currently hold DYN, with 134 net buyers and 108 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

108

Net Buying Institutions

134

Key Holders

Key Holders

Top 5 by Value

TR
T. Rowe Price Investment Management, Inc.
$558.1M
JH
Janus Henderson Group PLC
$247.4M
BI
BlackRock, Inc.
$212.1M
AV
Atlas Venture Life Science Advisors, LLC
$165.5M
FL
FMR LLC
$161.5M

Top 5 by Conviction

AV
Atlas Venture Life Science Advisors, LLC
20.95%
FI
Fcpm Iii Services B.v.
11.66%
PA
Palo Alto Investors LP
4.58%
SV
Saturn V Capital Management LP
3.17%
TC
TCG Crossover Management, LLC
2.39%
View all 227 holding institutions

Quarterly Activity

Recent Activity

+$1.9B

Total Buy Value

$1.4B

Total Sell Value

New buy34
Trim64
Add100
Sold out44

134

Net Buyers

108

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

25

Filings (90d)

$40.33M

Total Est. Value

1.90M shares

Planned Shares

Last Filed 2026-07-07
FilerFiling DateEst. Value
Atlas Venture Fund XI, LP2026-07-07$3.52M
ATLAS VENTURE ASSOCIATES XI, L.P.2026-07-07$114K
Atlas Venture Opportunity Fund II, LP2026-07-07$1.77M
Atlas Venture Opportunity Fund I, LP2026-07-07$1.39M
Atlas Venture Fund XI, LP2026-07-06$5.84M
Atlas Venture Opportunity Fund I, LP2026-07-06$2.31M
Atlas Venture Opportunity Fund II, LP2026-07-06$2.93M
Atlas Venture Opportunity Fund II, L.P.2026-06-29$1.08M
Atlas Venture Opportunity Fund I, L.P.2026-06-29$852K
Atlas Venture Fund XI, L.P.2026-06-29$2.16M

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding DYNE THERAPEUTICS INC (DYN)?
Major stakeholders currently include T. Rowe Price Investment Management, Inc. ($558.1M), Janus Henderson Group PLC ($247.4M), BlackRock, Inc. ($212.1M). Based on the latest 13F filings, there are a total of 227 tracked investment funds and institutions maintaining positions in DYN.
What is the overall institutional sentiment toward DYN recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $85.0M, driven by 134 managers accumulating shares while 108 reduced their exposure.
Which institutions have been selling or reducing their DYN positions?
In the latest period, 64 funds trimmed their holdings, and 44 managers completely exited their positions. The aggregate reported sell value was $1.4B.
Are there any notable investors adding DYN to their portfolios?
Yes, buying activity remains notable. 34 institutions opened new positions in {ticker}, and 100 existing holders added to their shares. The total reported buy value for the quarter amounted to $1.9B.

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