FOGHORN THERAPEUTICS INC

Ticker: FHTX CUSIP: 344174107 Class: Common Stock

Siren, L.L.C.'s Holding History (CIK: 0002005245)

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

Q4 2025

Shares 720,720 Value ($000) $3,892 Avg Close $4.53 Range $3.27 - $5.95

Q3 2025

Shares 720,720 Value ($000) $3,524 Avg Close $5.30 Range $4.47 - $6.79

Q2 2025

Shares 720,720 Value ($000) $3,387 Avg Close $4.18 Range $2.94 - $5.10

Q1 2025

Shares 720,720 Value ($000) $2,631 Avg Close $4.56 Range $3.29 - $6.66

Q4 2024

Shares 720,720 Value ($000) $3,402 Avg Close $7.28 Range $4.46 - $9.70

Q3 2024

Shares 720,720 Value ($000) $6,710 Avg Close $7.24 Range $4.77 - $10.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	720,720	$3,892	$4.53	$3.27 - $5.95
Q3 2025	720,720	$3,524	$5.30	$4.47 - $6.79
Q2 2025	720,720	$3,387	$4.18	$2.94 - $5.10
Q1 2025	720,720	$2,631	$4.56	$3.29 - $6.66
Q4 2024	720,720	$3,402	$7.28	$4.46 - $9.70
Q3 2024	720,720	$6,710	$7.24	$4.77 - $10.25