Transaction · 0001915598-26-000004

Friedl-Naderer Johanna

Friedl-Naderer Johanna, CCO, reported an open-market or private sale at Dyne Therapeutics, Inc. involving 226.000000 shares for an estimated $5939.28. Reported holdings after the transaction were 153982.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCCO
DYNDyne Therapeutics, Inc.
Trade date
Aug 13, 2026
Filing date
Aug 17, 2026
View on SEC Insider profile
Estimated value-$5.93kShares × reported price
Shares traded226$26.28 per share
Holdings after153kDirect
% of reported position traded0.15%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 154,208 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

DYN price since this filing

Daily closing prices, with the filing date and available return windows
DYN · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -9.1%1w ago -1.0%1d ago +0.1%
Returns since7d -0.6%30d -33.8%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001915598-26-000004
Common Stock
Transaction date
Aug 13, 2026
Filed Aug 17, 2026, 08:08 PM · 4d delay
Shares
226 sh
$26.28 per share
Estimated value
-$5.93k
Computed from shares × price
Holdings after
153,982 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership 10b5-1 Detected
Filing-only score

-4 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Commercial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares automatically sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting of restricted stock units granted to the Reporting Person on February…

  2. F2

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $26.17 to $26.39, inclusive. The Reporting Person undertakes t…

  3. F3

    Includes 119,928 unvested RSUs.

Original filing · 0001915598-26-000004
Related transactions

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