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$DYN All transactions

Dyne Therapeutics, Inc.

A

$ Value

$0

Shares

70,000

Price

$0

Filed

Oct 2

Insider

Name

Posner Brian S

Title

CIK

0001372455

Roles

Director

Transaction Details

Transaction Date

2025-10-01

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

70,000

Footnotes

The option was granted on October 1, 2025. The shares underlying the option are scheduled to vest over three years in equal monthly installments through October 1, 2028.

Filing Info

Accession No.

0001193125-25-228360

Form Type

4

Issuer CIK

0001818794

Posner Brian S's History

Date Ticker Type Value
2026-03-30 DYN $34K
2025-10-01 DYN A $0
2025-08-01 ACGL $17K
2025-05-07 ACGL A

Other Insiders at DYN (90d)

Insider Bought Sold Last
Posner Brian S $34K 2026-03-30
Rhodes Jason P $16.5M 2026-04-22
Lucera Erick
Chief Financial Officer
$107K 2026-04-01
Kersten Dirk $9.1M 2026-04-22