DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

Altium Capital Management LP's Holding History (CIK: 0001746382)

Note: Option positions (PUT/CALL) are excluded.

Q3 2023

Shares 315,000 Value ($000) $2,822 Avg Close $10.77 Range $8.35 - $12.68

Q2 2023

Shares 155,000 Value ($000) $1,744 Avg Close $11.80 Range $8.04 - $15.02

Q1 2023

Shares 155,000 Value ($000) $1,786 Avg Close $12.99 Range $10.71 - $15.60

Q4 2021

Shares 166,636 Value ($000) $1,981 Avg Close $14.05 Range $11.56 - $16.48

Q3 2021

Shares 166,636 Value ($000) $2,706 Avg Close $17.73 Range $15.22 - $21.70

Q2 2021

Shares 166,636 Value ($000) $3,506 Avg Close $18.80 Range $15.13 - $22.92

Q1 2021

Shares 166,636 Value ($000) $2,588 Avg Close $19.35 Range $13.50 - $32.31

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	315,000	$2,822	$10.77	$8.35 - $12.68
Q2 2023	155,000	$1,744	$11.80	$8.04 - $15.02
Q1 2023	155,000	$1,786	$12.99	$10.71 - $15.60
Q4 2021	166,636	$1,981	$14.05	$11.56 - $16.48
Q3 2021	166,636	$2,706	$17.73	$15.22 - $21.70
Q2 2021	166,636	$3,506	$18.80	$15.13 - $22.92
Q1 2021	166,636	$2,588	$19.35	$13.50 - $32.31