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SEC Form 4 research

Dyne Therapeutics, Inc. insider transactions

Inspect Dyne Therapeutics, Inc.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0001818794
Reporting owners
48
Officers and directors
14
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-10-062026-10-02Posner Brian SP2,500$16Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-02 and its public availability date is 2026-10-06. Subtracting those calendar dates gives 4 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001193125-26-415584 ↗SEC accession 0001915598-26-000005 ↗SEC accession 0001915598-26-000005 ↗

Recent insider disclosures

Inspect all 18 displayed rows: Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-062026-10-02Posner Brian SP2,500$16Not reported
2026-09-082026-09-08Friedl-Naderer JohannaS185$18.88Not reported
2026-09-082026-09-04Friedl-Naderer JohannaS900$24.35Not reported
2026-09-082026-09-08Kerr DouglasS1,290$18.88Not reported
2026-09-082026-09-04Kerr DouglasS3,745$24.35Not reported
2026-09-082026-09-08Cox JohnS5,658$18.88Not reported
2026-08-182026-08-13Friedl-Naderer JohannaS226$26.28Not reported
2026-08-182026-08-13Kerr DouglasS1,556$26.28Not reported
2026-08-182026-08-13Lucera ErickS1,797$26.28Not reported
2026-08-182026-08-14Rhodes Jason PS322,465$25Not reported
2026-08-182026-08-14Rhodes Jason PS478,377$25Not reported
2026-08-182026-08-14Rhodes Jason PS1,359,674$25Not reported
2026-08-182026-08-13Rhodes Jason PS63,643$26.2Not reported
2026-08-182026-08-13Rhodes Jason PS94,415$26.2Not reported
2026-08-182026-08-13Rhodes Jason PS268,354$26.2Not reported
2026-08-182026-08-13Cox JohnS4,986$26.28Not reported
2026-07-302026-07-27Kersten DirkS5,388$26.04Not reported
2026-07-302026-07-27Kersten DirkS256,072$25.5Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 14 displayed rows: Officers and directors in the directory

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Rhodes Jason P0001577014240
Brumm Joshua T000152882647
Scalzo Richard William000178954542
McNeill Jonathan000182467337
Posner Brian S000137245535
Beskrovnaya Oxana000182454230
Lucera Erick000169761611
HIGH SUSANNA GATTI000169100548
Friedl-Naderer Johanna000191559812
Cox John000149842838
Kerr Douglas000181418927
Farwell Wildon000184794121
Incerti Carlo00019153581
Kersten Dirk000182368290
Rhodes Jason P ↗Brumm Joshua T ↗Scalzo Richard William ↗McNeill Jonathan ↗Posner Brian S ↗Beskrovnaya Oxana ↗Lucera Erick ↗HIGH SUSANNA GATTI ↗Friedl-Naderer Johanna ↗Cox John ↗Kerr Douglas ↗Farwell Wildon ↗Incerti Carlo ↗Kersten Dirk ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

This issuer meets the currently published company-strategy eligibility rules.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.