Disc Medicine (NASDAQ: IRON) CMO sells shares to cover RSU taxes

Rhea-AI Filing Summary

Disc Medicine, Inc. Chief Medical Officer William Jacob Savage reported an open-market sale of 3,256 shares of common stock at $62.86 per share. According to the footnote, this was a non-discretionary “sell to cover” transaction to satisfy tax withholding obligations from vesting restricted stock units. After the sale, he directly owned 92,589 shares.

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^*

Savage William Jacob

(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 Medical 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)		3,256	D	$62.86	92,589	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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transaction did Disc Medicine (IRON) report in this Form 4?

Disc Medicine reported that Chief Medical Officer William Jacob Savage sold 3,256 shares of common stock at $62.86 per share. The filing states this was a tax-related “sell to cover” linked to vesting restricted stock units, not a discretionary stock sale.

Was the IRON insider sale by William Jacob Savage a discretionary transaction?

No, the filing specifies the sale was a non-discretionary “sell to cover” for tax withholding obligations. It occurred in connection with the vesting of previously reported restricted stock units, rather than a voluntary decision to reduce his investment in Disc Medicine.

How many Disc Medicine (IRON) shares did the CMO sell and at what price?

William Jacob Savage sold 3,256 shares of Disc Medicine common stock at $62.86 per share. The transaction is described as an open-market sale used solely to cover tax withholding tied to vesting restricted stock units reported earlier.

How many Disc Medicine (IRON) shares does the CMO own after this transaction?

Following the reported transaction, William Jacob Savage directly owned 92,589 shares of Disc Medicine common stock. This remaining balance reflects his holdings after the 3,256-share sell-to-cover sale executed for tax withholding related to vesting restricted stock units.

Why did the Disc Medicine (IRON) CMO execute a sell-to-cover transaction?

The filing explains that shares were sold to satisfy tax withholding obligations triggered by the vesting of certain restricted stock units. This type of sell-to-cover transaction is administrative in nature and does not represent a voluntary share sale decision by the executive.