SEC Form 4 · accession 0001193125-26-275996

Disc Medicine, Inc. · IRON

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Chief Operating Officer

Period of report

Jun 16, 2026

Accepted (ET)

Jun 18, 2026 · 4:43 pm EDT

Rule 10b5-1 plan

yes — trade under a plan

Issuer CIK

0001816736

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock	Jun 16, 2026	M	5,261	$9.86	A	59,585	D
Common Stock	Jun 16, 2026	M	13,351	$9.86	A	72,936	D
Common Stock^F2	Jun 16, 2026	S	11,651	$68.7582	D	61,285	D
Common Stock^F3	Jun 16, 2026	S	6,961	$69.918	D	54,324	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (Right to Buy)^F4	$9.86	Jun 16, 2026	M	5,261	D	—	Sep 13, 2031	Common Stock	5,261	1,753	D
Stock Option (Right to Buy)^F4	$9.86	Jun 16, 2026	M	13,351	D	—	Sep 13, 2031	Common Stock	13,351	31,951	D

F1These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 17, 2026.
F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.37 to $69.36, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.
F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.40 to $70.19, inclusive.
F4The shares underlying this option are fully vested and exercisable as of the date hereof.