Mona Ashiya - 11 Jun 2025 Form 4 Insider Report for Disc Medicine, Inc. (IRON)

Role: Director
Signature: By: /s/ Rahul Khara, as Attorney-in-Fact
Issuer symbol: IRON
Transactions as of: 11 Jun 2025
Net transactions value: $0
Form type: 4
Filing time: 13 Jun 2025, 17:10:06 UTC
Previous filing: 26 Mar 2025
Next filing: 02 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ashiya Mona	Director	C/O DISC MEDICINE, INC., 321 ARSENAL STREET, SUITE 101, WATERTOWN	By: /s/ Rahul Khara, as Attorney-in-Fact	13 Jun 2025	0001794070

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)	Award	$0	+10,000		$0.000000	10,000	11 Jun 2025	Common Stock	10,000	$50.86	Direct	F1, 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 upon the first to occur of (i) the date of the Company's 2026 annual meeting of its stockholders, or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service on such vesting date.
F2	Pursuant to an agreement with OrbiMed Advisors LLC, OrbiMed Capital GP VI LLC, and OrbiMed Capital GP VIII LLC, the Reporting Person is obligated to transfer any securities issued under any such stock options or other awards, or the economic benefit thereof, to OrbiMed Advisors LLC, OrbiMed Capital GP VI LLC, and OrbiMed Capital GP VIII LLC, which will in turn ensure that such securities or economic benefits are provided to OrbiMed Private Investments VI, LP and OrbiMed Private Investments VIII, LP.

Content

The shares underlying this option vest upon the first to occur of (i) the date of the Company's 2026 annual meeting of its stockholders, or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service on such vesting date.

Pursuant to an agreement with OrbiMed Advisors LLC, OrbiMed Capital GP VI LLC, and OrbiMed Capital GP VIII LLC, the Reporting Person is obligated to transfer any securities issued under any such stock options or other awards, or the economic benefit thereof, to OrbiMed Advisors LLC, OrbiMed Capital GP VI LLC, and OrbiMed Capital GP VIII LLC, which will in turn ensure that such securities or economic benefits are provided to OrbiMed Private Investments VI, LP and OrbiMed Private Investments VIII, LP.