DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q4 2025

Shares 70,323 Value ($000) $1,376 Avg Close $18.94 Range $12.33 - $25.00

Q3 2025

Shares 281,340 Value ($000) $3,559 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 128,962 Value ($000) $1,228 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 117,006 Value ($000) $1,224 Avg Close $14.30 Range $9.96 - $26.22

Q4 2024

Shares 128,290 Value ($000) $3,023 Avg Close $29.58 Range $23.05 - $35.90

Q3 2024

Shares 104,517 Value ($000) $3,754 Avg Close $39.80 Range $23.55 - $47.45

Q2 2024

Shares 215,471 Value ($000) $7,604 Avg Close $29.06 Range $23.11 - $36.60

Q1 2024

Shares 87,523 Value ($000) $2,485 Avg Close $22.62 Range $12.33 - $30.27

Q4 2023

Shares 18,483 Value ($000) $246 Avg Close $9.77 Range $6.40 - $13.88

Q3 2023

Shares 51,221 Value ($000) $459 Avg Close $10.77 Range $8.35 - $12.68

Q1 2023

Shares 27,629 Value ($000) $318 Avg Close $12.99 Range $10.71 - $15.60

Q4 2022

Shares 95,751 Value ($000) $1,110 Avg Close $11.57 Range $9.06 - $14.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	70,323	$1,376	$18.94	$12.33 - $25.00
Q3 2025	281,340	$3,559	$11.41	$8.06 - $14.35
Q2 2025	128,962	$1,228	$11.01	$6.36 - $15.23
Q1 2025	117,006	$1,224	$14.30	$9.96 - $26.22
Q4 2024	128,290	$3,023	$29.58	$23.05 - $35.90
Q3 2024	104,517	$3,754	$39.80	$23.55 - $47.45
Q2 2024	215,471	$7,604	$29.06	$23.11 - $36.60
Q1 2024	87,523	$2,485	$22.62	$12.33 - $30.27
Q4 2023	18,483	$246	$9.77	$6.40 - $13.88
Q3 2023	51,221	$459	$10.77	$8.35 - $12.68
Q1 2023	27,629	$318	$12.99	$10.71 - $15.60
Q4 2022	95,751	$1,110	$11.57	$9.06 - $14.55