DISC MEDICINE INC

Ticker: IRON CUSIP: 254604101 Class: Common Stock

RTW INVESTMENTS, LP's Holding History (CIK: 0001493215)

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

Q4 2025

Shares 30,000 Value ($000) $2,382 Avg Close $84.50 Range $65.26 - $99.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,000	$2,382	$84.50	$65.26 - $99.50