DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

GUGGENHEIM CAPITAL LLC's Holding History (CIK: 0001283072)

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

Q4 2025

Shares 11,071 Value ($000) $217 Avg Close $18.94 Range $12.33 - $25.00

Q3 2025

Shares 47,680 Value ($000) $603 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 40,621 Value ($000) $387 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 43,680 Value ($000) $457 Avg Close $14.30 Range $9.96 - $26.22

Q4 2024

Shares 26,018 Value ($000) $613 Avg Close $29.58 Range $23.05 - $35.90

Q3 2024

Shares 31,857 Value ($000) $1,144 Avg Close $39.80 Range $23.55 - $47.45

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,071	$217	$18.94	$12.33 - $25.00
Q3 2025	47,680	$603	$11.41	$8.06 - $14.35
Q2 2025	40,621	$387	$11.01	$6.36 - $15.23
Q1 2025	43,680	$457	$14.30	$9.96 - $26.22
Q4 2024	26,018	$613	$29.58	$23.05 - $35.90
Q3 2024	31,857	$1,144	$39.80	$23.55 - $47.45