Form 144: Ryan Savitz to Sell 8,224 Shares

Ryan Savitz submitted a Form 144 notice to sell 8,224 shares of Common Stock pursuant to an exercise of stock options dated 04/09/2026, with a cash amount shown as $719,435.52.

Accepted by SEC EDGAR 04/09/2026 - 04:22 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Ryan Savitz submitted a Form 144 notice to sell 8,224 shares of Common Stock pursuant to an exercise of stock options dated 04/09/2026, with a cash amount shown as $719,435.52. The filing also records prior 10b5-1 sales of 114,367 shares on 03/31/2026 for $9,492,532.35.

Key Figures

Registered/offered shares: 8,224 shares Cash amount associated: $719,435.52 Prior 10b5-1 sales: 114,367 shares +1 more

4 metrics

Registered/offered shares 8,224 shares Registered sale dated 04/09/2026 from option exercise

Cash amount associated $719,435.52 Amount shown with the 8,224-share item dated 04/09/2026

Prior 10b5-1 sales 114,367 shares Securities sold during past 3 months on 03/31/2026

Proceeds from prior sales $9,492,532.35 Cash amount reported for 10b5-1 sales on 03/31/2026

Key Terms

Form 144, 10b5-1, exercise of stock options

3 terms

Form 144 regulatory

"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.

10b5-1 regulatory

"10b5-1 Sales for RYAN SAVITZ"

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.

exercise of stock options financial

"Exercise of Stock Options | Issuer"

FAQ

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

What does the DNTH Form 144 filed by Ryan Savitz disclose?

It discloses a proposed sale of 8,224 shares from an option exercise dated 04/09/2026. The notice lists a cash amount of $719,435.52 and references prior 10b5-1 sales of 114,367 shares on 03/31/2026 for $9,492,532.35.

How many shares were sold under the prior 10b5-1 sales for DNTH?

The filing shows 114,367 shares sold under 10b5-1 on 03/31/2026. The related cash amount for those sales is listed as $9,492,532.35, per the Form 144 excerpt.

What is the source of the shares listed in the Form 144 for DNTH?

The shares to be sold (8,224) are identified as resulting from an exercise of stock options on 04/09/2026. The filing pairs that item with a cash figure of $719,435.52.

Does the Form 144 for DNTH indicate method or broker for the sale?

The excerpt identifies a broker/agent line referencing Morgan Stanley Smith Barney LLC. The Form 144 entry associates the transaction with a cash settlement method on 04/09/2026.

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

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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	0001992324
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	DIANTHUS THERAPEUTICS INC
SEC File Number	001-38541
Address of Issuer	7 Times Square, 43rd Floor New York NEW YORK 10036
Phone	9299994055
Name of Person for Whose Account the Securities are To Be Sold	RYAN SAVITZ
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	8224	719435.52	44471094	04/09/2026	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	04/09/2026	Exercise of Stock Options	Issuer			8224	04/09/2026	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 RYAN SAVITZ 7 Times Square, 43rd Floor New York NY 10036	Common	03/31/2026	114367	9492532.35

144: Remarks and Signature

Remarks
Date of Notice	04/09/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/30/2025
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/ Ryan Savitz
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)