William Jacob Savage - 27 Jun 2025 Form 4 Insider Report for Disc Medicine, Inc. (IRON)

Role: Chief Medical Officer
Signature: By: /s/ Rahul Khara, as Attorney-in-Fact
Issuer symbol: IRON
Transactions as of: 27 Jun 2025
Net transactions value: +$316,210
Form type: 4
Filing time: 01 Jul 2025, 16:50:45 UTC
Previous filing: 09 Jun 2025
Next filing: 16 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Savage William Jacob	Chief Medical Officer	C/O DISC MEDICINE, INC., 321 ARSENAL STREET, SUITE 101, WATERTOWN	By: /s/ Rahul Khara, as Attorney-in-Fact	01 Jul 2025	0001951852

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IRON	Common Stock	Options Exercise	$292,438	+29,659	+52%	$9.86	86,384	27 Jun 2025	Direct
transaction	IRON	Common Stock	Options Exercise	$23,772	+2,411	+2.8%	$9.86	88,795	27 Jun 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	IRON	Stock Option (Right to Buy)	Options Exercise	$0	-29,659	-82%	$0.000000	6,375	27 Jun 2025	Common Stock	29,659	$9.86	Direct	F1
transaction	IRON	Stock Option (Right to Buy)	Options Exercise	$0	-2,411	-46%	$0.000000	2,847	27 Jun 2025	Common Stock	2,411	$9.86	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares underlying this option vest in 48 equal monthly installments following September 1, 2021, subject to the Reporting Person's continued service on each such vesting date.
F2	The shares underlying this option vest in 48 equal monthly installments following July 1, 2021, subject to the Reporting Person's continued service on each such vesting date.