SEC FORM 3

SEC FORM 3 SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Yu Jonathan Yen-Wen

(Last)

(First)

(Middle)

C/O DISC MEDICINE, INC.

321 ARSENAL STREET, SUITE 101

(Street)

WATERTOWN

02472

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
12/29/2022

3. Issuer Name and Ticker or Trading Symbol
Disc Medicine, Inc. [ IRON ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Chief Business Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option (Right to Buy)	⁽¹⁾	08/10/2030	Common Stock	37,941	2.65	D
Stock Option (Right to Buy)	⁽²⁾	10/22/2030	Common Stock	16,380	2.56	D
Stock Option (Right to Buy)	⁽³⁾	09/13/2031	Common Stock	7,014	9.86	D
Stock Option (Right to Buy)	⁽⁴⁾	09/13/2031	Common Stock	45,302	9.86	D

Explanation of Responses:

1. 25% of the shares underlying this option vested on July 1, 2021, with the remaining shares vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

2. 2,730 shares underlying this option vested on July 1, 2021, with the remaining shares vesting in 40 equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

3. 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.

4. 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.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Rahul Khara, attorney-in-fact	01/03/2023
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

SEC Form 3 filed by new insider Yu Jonathan Yen-Wen