IONS Form 144/A: Proposed Common Stock sales

IONS filing amends a Form 144 reporting proposed sales of Common Stock by a selling holder.

Rhea-AI Filing Summary

IONS filing amends a Form 144 reporting proposed sales of Common Stock by a selling holder. The filing lists sales dated 01/16/2026 and 01/30/2026 with reported quantities of 9,302 and 6,179 respectively. The securities are listed as Common Stock on Nasdaq.

Insights

Securities Compliance Counsel

Routine amended resale notice; no issuer proceeds disclosed.

This amended Form 144 documents proposed dispositions of Common Stock by a selling holder, with sale dates of 01/16/2026 and 01/30/2026

The filing lists share quantities (9,302 and 6,179) and identifies the listing exchange as Nasdaq; it functions as a regulatory notice of intent to sell rather than an issuer capital-raising event.

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Accepted by SEC EDGAR 03/24/2026 - 04:43 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/A

144/A: Filer Information

Filer CIK	0001838539
Filer CCC	XXXXXXXX
Previous Accession Number Of The Filing	0001972481-26-000114
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144/A: 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	Schneider Eugene
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/A: 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	5812	412486.00	165190000	03/19/2026	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/A: 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	01/15/2026	Performance Stock Units	Issuer			5812	01/15/2026	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/A: 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
Eugene Schneider 2855 Gazelle Ct Carlsbad CA 92010	Common Stock	01/30/2026	6179	512906.00
Eugene Schneider 2855 Gazelle Ct Carlsbad CA 92010	Common Stock	01/16/2026	9302	703138.00

144/A: Remarks and Signature

Remarks
Date of Notice	03/24/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/19/2025
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/ James Weimer, as a duly authorized representative of STIFEL, as attorney-in-fact for Eugene Schneider
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)