SEC Form 4 reporting owner

Kersten Dirk

Kersten Dirk has filed 20 Form 4 transactions reported between March 9, 2026 and July 27, 2026, as a reporting owner of Dyne Therapeutics, Inc..

Name as filed: Kersten Dirk

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$38.6M

19 lines

Companies

with Form 4 filings

Latest transaction

Jul 27, 2026

transaction date

Roles and reported holdings

DYNDyne Therapeutics, Inc.
Mar 9, 2026 – Jul 27, 2026
Reporting owner
Held indirectly (latest line)3,586,796 sh as of Jul 27, 2026 · Form 4
24 months: $38.6M sold

Transaction history

All 20 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 27, 2026	DYN	Open-market saleCode S · indirect	5,388	$26.04	$140K@ $26.04	3,586,796	Form 4
Jul 27, 2026	DYN	Open-market saleCode S · indirect	256,072	$25.50	$6.5M@ $25.50	3,592,184	Form 4
Jun 23, 2026	DYN	Open-market saleCode S · indirect	1,657	$21.47	$36K@ $21.47	3,848,256	Form 4
Jun 23, 2026	DYN	Open-market saleCode S · indirect	71,629	$21.04	$1.5M@ $21.04	3,849,913	Form 4
Jun 22, 2026	DYN	Open-market saleCode S · indirect	190,676	$20.57	$3.9M@ $20.57	3,921,542	Form 4
Jun 18, 2026	DYN	Open-market saleCode S · indirect	46,901	$20.07	$941K@ $20.07	4,112,218	Form 4
Jun 17, 2026	DYN	Open-market saleCode S · indirect	37,454	$20.14	$754K@ $20.14	4,159,119	Form 4
Jun 5, 2026	DYN	Grant or awardCode A · direct	35,152	—	—	35,152	Form 4
Apr 22, 2026	DYN	Open-market saleCode S · indirect	2,652	$20.00	$53K@ $20.00	4,196,573	Form 4
Apr 21, 2026	DYN	Open-market saleCode S · indirect	8,300	$20.01	$166K@ $20.01	4,199,225	Form 4
Apr 20, 2026	DYN	Open-market saleCode S · indirect	125,274	$20.07	$2.5M@ $20.07	4,207,525	Form 4
Apr 17, 2026	DYN	Open-market saleCode S · indirect	211,974	$20.29	$4.3M@ $20.29	4,332,799	Form 4
Apr 16, 2026	DYN	Open-market saleCode S · indirect	6,657	$20.06	$134K@ $20.06	4,544,773	Form 4
Apr 16, 2026	DYN	Open-market saleCode S · indirect	11,116	$21.10	$235K@ $21.10	4,551,430	Form 4
Apr 15, 2026	DYN	Open-market saleCode S · indirect	81,840	$20.27	$1.7M@ $20.27	4,562,546	Form 4
Mar 11, 2026	DYN	Open-market saleCode S · indirect	129,672	$19.52	$2.5M@ $19.52	4,644,386	Form 4
Mar 10, 2026	DYN	Open-market saleCode S · indirect	281,858	$19.80	$5.6M@ $19.80	4,774,058	Form 4
Mar 10, 2026	DYN	Open-market saleCode S · indirect	219,758	$19.32	$4.2M@ $19.32	5,055,916	Form 4
Mar 10, 2026	DYN	Open-market saleCode S · indirect	9,482	$18.21	$173K@ $18.21	5,275,674	Form 4
Mar 9, 2026	DYN	Open-market saleCode S · indirect	177,690	$17.72	$3.1M@ $17.72	5,285,156	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.