IONS insider files Form 144 to sell 8,198 shares

IONS reported a Form 144 notice proposing sales of common stock by an insider.

Accepted by SEC EDGAR 03/03/2026 - 05:43 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

IONS reported a Form 144 notice proposing sales of common stock by an insider. The filing lists 8,198 shares associated with Stifel Nicolaus and shows an option‑related amount of 7,773 shares with a 03/03/2026 date. The filing also records 1,171 shares sold in the past three months by Mariana Baroldi on 03/03/2026.

FAQ

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

What does the IONS Form 144 disclose about proposed insider sales?

The filing discloses proposed sales of common stock totaling 8,198 shares (via Stifel Nicolaus) and an option‑related 7,773 shares with a 03/03/2026 date. It also notes prior sales of 1,171 shares on 03/03/2026.

Who is the reporting person named in the IONS Form 144?

The filing names Mariana Baroldi as a reporting person. The Form 144 shows her prior sale of 1,171 shares on 03/03/2026 and lists securities to be sold associated with the notice.

What dates are shown on the IONS Form 144 for the transactions?

Key dates in the notice include 03/03/2026 for the proposed sales and prior sales, and 01/15/2022 tied to restricted stock units recorded in the filing.

Does the IONS Form 144 show securities from equity compensation?

Yes; the filing lists restricted stock units dated 01/15/2022 with an entry of 425, identified under equity compensation in the disclosed securities table.

Which broker‑dealer is listed on the IONS Form 144 for the proposed sale?

The Form 144 lists Stifel Nicolaus & Company Inc. at 501 N Broadway, St. Louis, MO, associated with the common stock entry showing 8,198 shares and the 03/03/2026 date.

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	0001961885
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	IONIS PHARMACEUTICALS INC
SEC File Number	000-19125
Address of Issuer	2855 GAZELLE COURT CARLSBAD CALIFORNIA 92010
Phone	7609319200
Name of Person for Whose Account the Securities are To Be Sold	Baroldi Mariana
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 Stock	Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102	8198	655840.00	161970000	03/03/2026	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 Stock	01/03/2021	Option Exercise	Issuer			7773	03/03/2026	Cash
Common Stock	01/15/2022	Restricted Stock Units	Issuer			425	01/15/2022	Equity Compensation

* 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
Mariana Baroldi 2855 GAZELLE COURT CARLSBAD CA 92010	Common Stock	03/03/2026	1171	93680.00

144: Remarks and Signature

Remarks
Date of Notice	03/03/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/25/2025
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/ Luca Lotito, as a duly authorized representative of STIFEL, as attorney-in-fact for Mariana Baroldi
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)