IRON affiliate files Form 144 to sell shares

IRON affiliate files Form 144 to sell shares under a pre-set plan.

Rhea-AI Filing Summary

IRON affiliate files Form 144 to sell shares under a pre-set plan. Morgan Stanley Smith Barney LLC reported proposed sales of 5,731 shares of Common stock with an aggregate reported value of $380,079.92. The notice lists prior 10b5-1 sales on 02/17/2026 and 03/02/2026 and identifies the planned sale as tied to previously exercised stock options on 02/03/2025.

Insights

Securities Compliance Analyst

Form 144 notifies the market of an affiliate's planned sale under a 10b5-1 related sequence.

Form 144 is a regulatory notice of proposed sale by an affiliate; the filing lists 5,731 shares with an aggregate value of $380,079.92 and references stock options exercised on 02/03/2025.

Cash proceeds appear tied to routine dispositions under a trading plan; timing and exact execution mechanics are governed by 10b5-1 terms and broker handling rather than this notice.

Key Figures

Proposed shares listed: 5,731 shares Reported aggregate value: $380,079.92 10b5-1 sale (03/02/2026): 7,378 shares +2 more

5 metrics

Proposed shares listed 5,731 shares Form 144 proposed sale listing

Reported aggregate value $380,079.92 Aggregate value reported for 5,731 shares

10b5-1 sale (03/02/2026) 7,378 shares Previously executed sale on <date>03/02/2026</date>

10b5-1 sale (02/17/2026) 3,256 shares Previously executed sale on <date>02/17/2026</date>

Originally exercised options date 02/03/2025 Date shown for previously exercised stock options

Key Terms

10b5-1, Form 144, Previously Exercised Stock Options

3 terms

10b5-1 regulatory

"10b5-1 Sales for SAVAGE 321 Arsenal Street,Suite101"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Previously Exercised Stock Options financial

"Common | 02/03/2025 | Previously Exercised Stock Options"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does IRON's Form 144 report mean?

It notifies the SEC of a proposed sale by an affiliate under securities rules. The filing lists 5,731 shares valued at $380,079.92 tied to previously exercised options and references 10b5-1 sales on 02/17/2026 and 03/02/2026.

How many IRON shares are listed for sale on the Form 144?

The filing lists a proposed sale of 5,731 shares of IRON common stock. The Form 144 also documents prior executed 10b5-1 sales of 3,256 shares and 7,378 shares on the dates provided in the notice.

Are the proceeds from the sale paid to IRON?

Proceeds are associated with the selling affiliate, not the company. The filing shows an aggregate reported value of $380,079.92 for the 5,731-share notice; it does not state company receipt of proceeds because this is an affiliate resale notice.

What is the role of a 10b5-1 plan in this filing?

A 10b5-1 plan permits scheduled insider or affiliate sales independent of inside information. The Form 144 references prior 10b5-1 sales on 02/17/2026 and 03/02/2026, indicating some sales were executed under such a plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/13/2026 - 04:37 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001951852
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	DISC MEDICINE INC
SEC File Number	001-39438
Address of Issuer	321 Arsenal Street,Suite101 Watertown MASSACHUSETTS 02472
Phone	6176749274
Name of Person for Whose Account the Securities are To Be Sold	WILLIAM SAVAGE
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5731	380079.92	38160065	04/13/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/03/2025	Previously Exercised Stock Options	ISSUER			5731	02/03/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for WILLIAM SAVAGE 321 Arsenal Street,Suite101 Watertown MA 02472	Common	03/02/2026	7378	486068.54
WILLIAM SAVAGE 321 Arsenal Street,Suite101 Watertown MA 02472	Common	02/17/2026	3256	204672.16

144: Remarks and Signature

Remarks
Date of Notice	04/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/02/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ William Savage
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)