Cox John

Dyne Therapeutics, Inc. · CEO & President

Cox John is listed in public filings as director, officer: CEO & President. This Cox John insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include Dyne Therapeutics, Inc. (DYN). Investors use Cox John's insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Dyne Therapeutics, Inc.DYN$6.8M370.8k sharesSellMay 13, 2026$60.8K3.3k shares$18.36--

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Dyne Therapeutics, Inc.DYN$5.6M374.1k sharesSellMar 5, 2026$40.7K2.7k shares$14.90--
Dyne Therapeutics, Inc.DYN$4.6M285k sharesGrant / ExerciseFeb 12, 2026$4.6M285k shares$16.00--
Dyne Therapeutics, Inc.DYN--376.9k sharesGrant / ExerciseFeb 12, 2026Disclosure amount unavailable180k shares----
Dyne Therapeutics, Inc.DYN$4.1M196.9k sharesSellDec 5, 2025$55.2K2.7k shares$20.72--
Dyne Therapeutics, Inc.DYN$2.7M199.5k sharesSellSep 5, 2025$35.4K2.6k shares$13.41--
Dyne Therapeutics, Inc.DYN$1.8M197.3k sharesGrant / ExerciseJul 16, 2025$1.8M197.3k shares$9.33--
Dyne Therapeutics, Inc.DYN--202.2k sharesGrant / ExerciseJul 15, 2025Disclosure amount unavailable10k shares----
Dyne Therapeutics, Inc.DYN$2.2M242.2k sharesBuyJul 14, 2025$911.0K100k shares$9.11--
Dyne Therapeutics, Inc.DYN$1.9M142.2k sharesSellJun 5, 2025$54.2K4.1k shares$13.35--
Dyne Therapeutics, Inc.DYN$1.7M146.2k sharesSellMar 5, 2025$48.0K4.1k shares$11.83--
Dyne Therapeutics, Inc.DYN$6.8M232.1k sharesGrant / ExerciseDec 4, 2024$6.8M232.1k shares$29.44--
Dyne Therapeutics, Inc.DYN--150.3k sharesGrant / ExerciseDec 4, 2024Disclosure amount unavailable145.3k shares----
Dyne Therapeutics, Inc.DYN$265k8k sharesBuySep 4, 2024$238.2K7.2k shares$33.09--
Dyne Therapeutics, Inc.DYN$26k800 sharesBuySep 4, 2024$26.1K800 shares$32.57--