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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

DYN

Dyne Therapeutics, Inc.

Superinvestors

Institutional investors holding DYN

Consensus →
InvestorFundWeightSharesValueQuarter
Viking Global InvestorsViking Global Investors0.60%11,156,211$138.2M2016Q3
Meridian / ArrowMarkMeridian Contrarian Fund0.32%673,949$12.2M2026Q1
Kenneth FisherFisher Asset Management0.00%323,051$5.9M2026Q1

Congressional Activity

Congressional data coming soon

Insider Activity

63

Total trades

$39.1M

Volume

3

Buys

60

Sells

Last trade: Jun 3, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
Jun 3, 2026Brian S PosnerBuy$44K
May 26, 2026Brian S PosnerBuy$36K

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

May 13, 2026
John Cox
Sell
$61K
May 13, 2026Brian S PosnerSell$27K
May 13, 2026Brian S PosnerSell$29K
May 13, 2026Brian S PosnerSell$4K
May 4, 2026Brian S PosnerSell$56K
May 4, 2026Brian S PosnerSell$112K
May 4, 2026Brian S PosnerSell$1K
May 4, 2026Brian S PosnerSell$44K
May 4, 2026Brian S PosnerSell$55K
May 4, 2026Brian S PosnerSell$110K
May 4, 2026Brian S PosnerSell$1K
May 4, 2026Brian S PosnerSell$43K
May 4, 2026Brian S PosnerSell$399K
May 4, 2026Brian S PosnerSell$793K
May 4, 2026Brian S PosnerSell$8K
May 4, 2026Brian S PosnerSell$313K
Apr 28, 2026Brian S PosnerSell$1.1M
Apr 28, 2026Brian S PosnerSell$2.2M
Apr 28, 2026Brian S PosnerSell$22K
Apr 28, 2026Brian S PosnerSell$865K
Apr 28, 2026Brian S PosnerSell$494
Apr 28, 2026Brian S PosnerSell$988
Apr 28, 2026Brian S PosnerSell$19
Apr 28, 2026Brian S PosnerSell$399
Apr 23, 2026Brian S PosnerSell$370K
Apr 23, 2026Brian S PosnerSell$735K
Apr 23, 2026Brian S PosnerSell$7K
Apr 23, 2026Brian S PosnerSell$291K
Apr 23, 2026Brian S PosnerSell$672K
Apr 23, 2026Brian S PosnerSell$1.3M
Apr 23, 2026Brian S PosnerSell$13K
Apr 23, 2026Brian S PosnerSell$528K
Apr 23, 2026Brian S PosnerSell$830K
Apr 23, 2026Brian S PosnerSell$1.7M
Apr 23, 2026Brian S PosnerSell$16K
Apr 23, 2026Brian S PosnerSell$652K