John G. Cox's Insider Trades & SAST Disclosures

John G. Cox's most recent trade in Dyne Therapeutics Inc was a trade of 100,000 Common Stock done at an average price of $9.1 . Disclosure was reported to the exchange on July 14, 2025.

Stock Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 9.11 per share. 14 Jul 2025 100,000 242,179 - 9.1 911,000 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Gift of securities by or to the insider at price $ 0.00 per share. 14 Jul 2025 10,000 202,179 - 0 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Gift of securities by or to the insider at price $ 0.00 per share. 14 Jul 2025 10,000 212,179 - 0 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Gift of securities by or to the insider at price $ 0.00 per share. 14 Jul 2025 10,000 222,179 - 0 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Gift of securities by or to the insider at price $ 0.00 per share. 14 Jul 2025 10,000 232,179 - 0 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Sale of securities on an exchange or to another person at price $ 13.35 per share. 05 Jun 2025 4,060 142,179 - 13.4 54,201 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Sale of securities on an exchange or to another person at price $ 11.83 per share. 05 Mar 2025 4,061 146,239 - 11.8 48,042 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Grant, award, or other acquisition of securities at price $ 0.00 per share. 04 Dec 2024 232,100 232,100 - - Stock option (right to buy)
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Grant, award, or other acquisition of securities at price $ 0.00 per share. 04 Dec 2024 145,300 150,300 - 0 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 33.09 per share. 04 Sep 2024 7,200 8,000 - 33.1 238,248 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 33.09 per share. 04 Sep 2024 7,200 8,000 - 33.1 238,248 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 33.09 per share. 04 Sep 2024 7,200 8,000 - 33.1 238,248 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 33.09 per share. 04 Sep 2024 7,200 8,000 - 33.1 238,248 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 32.57 per share. 04 Sep 2024 800 800 - 32.6 26,056 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 32.57 per share. 04 Sep 2024 800 800 - 32.6 26,056 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 32.57 per share. 04 Sep 2024 800 800 - 32.6 26,056 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, CEO & President Purchase of securities on an exchange or from another person at price $ 32.57 per share. 04 Sep 2024 800 800 - 32.6 26,056 Common Stock
Dyne Therapeutics Inc
John G. Cox Director, See Remarks Grant, award, or other acquisition of securities at price $ 0.00 per share. 25 Mar 2024 679,853 679,853 - - Stock Option (Right to Buy)
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
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