Tax-cover share sale by Disc Medicine (IRON) chief commercial officer

Rhea-AI Filing Summary

Disc Medicine, Inc. Chief Commercial Officer Pamela Stephenson reported an open-market sale of 5,531 shares of common stock at $62.86 per share. According to the filing, the sale was solely to cover tax withholding on vesting restricted stock units. She now holds 80,998 shares directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Stephenson Pamela

(Last) (First) (Middle)

C/O DISC MEDICINE, INC.

321 ARSENAL STREET, SUITE 101

(Street)

WATERTOWN MA 02472

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/17/2026		S(1)		5,531	D	$62.86	80,998	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of certain restricted stock units previously reported in Table I. This sale is a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

	By: /s/ Rahul Khara, as Attorney-in-Fact	02/17/2026
	** 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 4 (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).
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FAQ

What insider transaction did Disc Medicine (IRON) report for Pamela Stephenson?

Pamela Stephenson reported selling 5,531 Disc Medicine shares at $62.86 per share. The filing explains this was a sell-to-cover transaction for tax withholding related to vesting restricted stock units, rather than a discretionary share sale.

Why did Disc Medicine (IRON) Chief Commercial Officer sell 5,531 shares?

The 5,531 shares were sold to cover tax withholding obligations triggered by the vesting of previously granted restricted stock units. The filing states this sell-to-cover transaction did not represent a discretionary decision by Pamela Stephenson to reduce her investment.

How many Disc Medicine (IRON) shares does Pamela Stephenson hold after the transaction?

After the tax-related sale, Pamela Stephenson directly holds 80,998 shares of Disc Medicine common stock. This post-transaction ownership figure is disclosed in the Form 4 as the total number of shares beneficially owned following the reported sale.

Was the Disc Medicine (IRON) insider sale an open-market transaction?

Yes. The Form 4 describes the event as an open-market sale of common stock at $62.86 per share. However, the footnote clarifies that the sale was executed solely to satisfy tax withholding obligations arising from vesting restricted stock units.

Does the Disc Medicine (IRON) filing describe the sale as discretionary?

No. The Form 4 explicitly notes the sale is a “sell to cover” tax transaction and does not represent a discretionary sale by Pamela Stephenson. It was undertaken to meet tax withholding obligations from vesting restricted stock units.