LYTIR

Insider · SEC Form 4 · Director

Dirk Kersten

Filed with the SEC as Kersten Dirk; the order above is the one the filer's own signature uses.

In the 12 months to Nov 8, 2026, on the open market: sold $13.8M of DYN. Filed a median of 2 business days after the trade.

Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $13.8M in total.Jun: Insider sales $7.2MJul: Insider sales $6.7MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $13.8M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
  1. DYNSold: Dyne Therapeutics, Inc. Jul 27, 2026 261,460 shares filed Jul 29, 2026 2 transactions 10b5-1 plan filing $6.7M
  2. DYNSold: Dyne Therapeutics, Inc. Jun 23, 2026 73,286 shares filed Jun 24, 2026 2 transactions 10b5-1 plan filing $1.5M
  3. DYNSold: Dyne Therapeutics, Inc. Jun 22, 2026 190,676 shares filed Jun 24, 2026 3,921,542 shares held indirectly after, as filed 10b5-1 plan filing $3.9M
  4. DYNSold: Dyne Therapeutics, Inc. Jun 18, 2026 46,901 shares filed Jun 22, 2026 4,112,218 shares held indirectly after, as filed 10b5-1 plan filing $941K
  5. DYNSold: Dyne Therapeutics, Inc. Jun 17, 2026 37,454 shares filed Jun 22, 2026 4,159,119 shares held indirectly after, as filed 10b5-1 plan filing $754K

Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.