John D. Quisel - 03 Jul 2025 Form 4 Insider Report for Disc Medicine, Inc. (IRON)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: IRON
Reported as of: 03 Jul 2025
Net transaction value: -$235,182
SEC form: 4
Accepted by SEC: 08 Jul 2025, 20:19:12 UTC
Prior SEC filing: 26 Jun 2025
Next SEC filing: 11 Jul 2025
Source filing: View source filing
Reporting owner signature: By: /s/ Rahul Khara, as Attorney-in-Fact

Key filing fact

John D. Quisel filed Form 4 for Disc Medicine, Inc. (IRON) on 08 Jul 2025.

Key facts

This page summarizes John D. Quisel's Form 4 filing for Disc Medicine, Inc. (IRON).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 08 Jul 2025, 20:19.

Change

Previous filing in this sequence was filed on 26 Jun 2025.
Current net transaction value: -$235,182.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001586788 Primary reporting owner

Quisel John D

Relationship: Chief Executive Officer, Director
Address: C/O DISC MEDICINE, INC., 321 ARSENAL STREET, SUITE 101, WATERTOWN
Signature: By: /s/ Rahul Khara, as Attorney-in-Fact
Signature date: 08 Jul 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IRON transaction

Common Stock

Options Exercise

Transaction value: $51,272
Shares: +5,200
Change %: +3.2%
Price: $9.86
Shares after: 167,028
Date: 03 Jul 2025
Ownership: Direct
Footnotes: F1

IRON transaction

Common Stock

Sale

Transaction value: $286,454
Shares: -5,200
Change %: -3.1%
Price: $55.09
Shares after: 161,828
Date: 03 Jul 2025
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IRON transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value: $0
Shares: -5,200
Change %: -3.3%
Price: $0.000000
Shares after: 150,175
Date: 03 Jul 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,200
Exercise price: $9.86
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

The transactions reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted on February 13, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.00 to $55.26, 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 range set forth in this footnote (2) to this Form 4.

Footnote F3

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.