Insider Buying and Selling - DYN

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
09/05/2025 10b5-1	09/09/2025	Cox John CEO & President CEO Director	Sell	-2,640 @ $13.41	($35,402.40)	199,539	(-1.31%)	Direct
09/05/2025 10b5-1	09/08/2025	Friedl-Naderer Johanna Chief Commercial Officer Officer	Sell	-144 @ $13.41	($1,931.04)	94,873	(-0.15%)	Direct
09/05/2025 10b5-1	09/08/2025	Kerr Douglas Chief Medical Officer Officer	Sell	-873 @ $13.41	($11,706.93)	88,390	(-0.98%)	Direct
09/04/2025 10b5-1	09/08/2025	Friedl-Naderer Johanna Chief Commercial Officer Officer	Sell	-894 @ $13.27	($11,863.38)	95,017	(-0.93%)	Direct
09/04/2025 10b5-1	09/08/2025	Kerr Douglas Chief Medical Officer Officer	Sell	-3,552 @ $13.27	($47,135.04)	89,263	(-3.83%)	Direct
07/14/2025	07/15/2025	Cox John CEO & President CEO Director	Buy	100,000 @ $9.11	$911,000.00	242,179	(70.33%)	Direct
06/05/2025 10b5-1	06/06/2025	Cox John CEO & President CEO Director	Sell	-4,060 @ $13.35	($54,201.00)	142,179	(-2.78%)	Direct
06/05/2025 10b5-1	06/06/2025	Friedl-Naderer Johanna Chief Commercial Officer Officer	Sell	-146 @ $13.35	($1,949.10)	95,911	(-0.15%)	Direct
06/05/2025 10b5-1	06/06/2025	Kerr Douglas Chief Medical Officer Officer	Sell	-1,342 @ $13.35	($17,915.70)	92,815	(-1.43%)	Direct
03/13/2025 10b5-1	03/13/2025	Friedl-Naderer Johanna Chief Commercial Officer Officer	Sell	-143 @ $12.12	($1,733.16)	96,057	(-0.15%)	Direct
03/11/2025 10b5-1	03/13/2025	Beskrovnaya Oxana Chief Scientific Officer Officer	Sell	-2,153 @ $11.38	($24,501.14)	195,840	(-1.09%)	Direct
03/11/2025 10b5-1	03/13/2025	Scalzo Richard William SVP, Head of Finance & Admin. Officer	Sell	-1,343 @ $11.38	($15,283.34)	122,330	(-1.09%)	Direct
03/05/2025 10b5-1	03/07/2025	Beskrovnaya Oxana Chief Scientific Officer Officer	Sell	-1,094 @ $11.83	($12,942.02)	197,993	(-0.55%)	Direct
03/05/2025 10b5-1	03/07/2025	Cox John CEO & President CEO Director	Sell	-4,061 @ $11.83	($48,041.63)	146,239	(-2.70%)	Direct
03/05/2025 10b5-1	03/07/2025	Kerr Douglas Chief Medical Officer Officer	Sell	-1,343 @ $11.83	($15,887.69)	94,157	(-1.41%)	Direct
03/05/2025 10b5-1	03/07/2025	Scalzo Richard William SVP, Head of Finance & Admin. Officer	Sell	-917 @ $11.83	($10,848.11)	123,673	(-0.74%)	Direct
02/18/2025 10b5-1	02/25/2025	Beskrovnaya Oxana Chief Scientific Officer Officer	Sell	-2,598 @ $13.95	($36,242.10)	199,087	(-1.29%)	Direct
02/18/2025 10b5-1	02/18/2025	Scalzo Richard William SVP, Head of Finance & Admin. Officer	Sell	-2,488 @ $13.95	($34,707.60)	124,590	(-1.96%)	Direct
12/11/2024 10b5-1	12/11/2024	Beskrovnaya Oxana Chief Scientific Officer Officer	Sell	-2,334 @ $28.12	($65,632.08)	201,685	(-1.14%)	Direct
12/11/2024 10b5-1	12/11/2024	Scalzo Richard William SVP, Head of Finance & Admin. Officer	Sell	-1,455 @ $28.12	($40,914.60)	127,078	(-1.13%)	Direct
11/18/2024 10b5-1	11/18/2024	Beskrovnaya Oxana Chief Scientific Officer Officer	Sell	-2,856 @ $28.20	($80,539.20)	137,519	(-2.03%)	Direct
11/18/2024 10b5-1	11/18/2024	Scalzo Richard William SVP, Head of Finance & Admin. Officer	Sell	-2,735 @ $28.20	($77,127.00)	95,833	(-2.77%)	Direct

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Dyne Therapeutics, Inc. - DYN

Latest data: 9/18/2025 10:03:52 PM

Buy Breakdown

Total $911,000

Sell Breakdown

Total $646,504

Monthly Totals