John D. Quisel - 09 Sep 2025 Form 4 Insider Report for Disc Medicine, Inc. (IRON)

Role
Chief Executive Officer, Director
Signature
By: /s/ Rahul Khara, as Attorney-in-Fact
Issuer symbol
IRON
Transactions as of
09 Sep 2025
Net transactions value
+$10,100
Form type
4
Filing time
11 Sep 2025, 18:00:09 UTC
Previous filing
11 Jul 2025
Next filing
15 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Quisel John D Chief Executive Officer, Director C/O DISC MEDICINE, INC., 321 ARSENAL STREET, SUITE 101, WATERTOWN By: /s/ Rahul Khara, as Attorney-in-Fact 11 Sep 2025 0001586788

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IRON Common Stock Options Exercise $10,100 +10,000 +6.2% $1.01 171,828 09 Sep 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 -10,000 -4.8% $0.000000 198,420 09 Sep 2025 Common Stock 10,000 $1.01 Direct F1
* 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 are fully vested and exercisable as of the date hereof.