IONS Form 144: 47,884-Share Proposed Sale

IONS submitted a Form 144 proposing the sale of 47,884 shares of Common Stock with an aggregate value of $3,880,807.00.

Rhea-AI Filing Summary

IONS submitted a Form 144 proposing the sale of 47,884 shares of Common Stock with an aggregate value of $3,880,807.00. The filing lists 165,262,556 shares outstanding as of 06/26/2026 and names Stifel Nicolaus & Company Inc as broker. The shares trace to prior stock option exercises on 01/02/2020 (26,000 shares) and 01/04/2021 (21,884 shares).

Insights

Securities Attorney

Form 144 notifies the market of a proposed resale by an insider or affiliate.

Form 144 is a notice of a proposed sale under federal rules; it lists the proposed quantity (47,884 shares) and the broker (Stifel Nicolaus & Company Inc). The filing includes an aggregate sale value of $3,880,807.00 and an outstanding share count of 165,262,556 as of 06/26/2026.

Timing and execution details are not provided in the excerpt; subsequent Form 4, Rule 144 confirmations, or broker reports would show actual dispositions. Future filings will show whether the proposed sale was executed and any wash-sale or volume-limitation compliance matters.

Key Figures

Proposed shares to be sold: 47,884 shares Aggregate value: $3,880,807.00 Shares outstanding: 165,262,556 shares +2 more

5 metrics

Proposed shares to be sold 47,884 shares listed in the Form 144 excerpt

Aggregate value $3,880,807.00 reported alongside the proposed sale quantity

Shares outstanding 165,262,556 shares as of 06/26/2026

Option exercise on 01/02/2020 26,000 shares stock option exercise date listed in excerpt

Option exercise on 01/04/2021 21,884 shares stock option exercise date listed in excerpt

Key Terms

Form 144, Stock Option Exercise, Broker-dealer

3 terms

Form 144 regulatory

"Common Stock | Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102 | 47884"

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.

Stock Option Exercise financial

"Common Stock | 01/02/2020 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Broker-dealer market

"Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

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

What does IONS' Form 144 disclose about the proposed sale?

The Form 144 discloses a proposed sale of 47,884 shares with an aggregate value of $3,880,807.00. It also lists Stifel Nicolaus & Company Inc as the broker and shows 165,262,556 shares outstanding as of 06/26/2026.

Who is the broker handling the proposed IONS sale?

Stifel Nicolaus & Company Inc is named as the broker on the Form 144. The filing pairs the broker with the proposed sale details and the aggregate value of $3,880,807.00 for the 47,884 shares listed.

Do the Form 144 entries mention the origin of the shares for IONS?

Yes. The filing shows the shares relate to prior stock option exercises on 01/02/2020 (26,000 shares) and 01/04/2021 (21,884 shares). These exercises are listed under securities to be sold in the excerpt.

How many IONS shares were outstanding per the Form 144 excerpt?

The Form 144 lists 165,262,556 shares outstanding as of 06/26/2026. That figure appears alongside the proposed sale quantity and the aggregate value reported in the excerpt.

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

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Accepted by SEC EDGAR 06/26/2026 - 05:43 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

144: Filer Information

Filer CIK	0001838539
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	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: 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	47884	3880807.00	165262556	06/26/2026	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	01/02/2020	Stock Option Exercise	Issuer			26000	01/02/2020	Equity Compensation
Common Stock	01/04/2021	Stock Option Exercise	Issuer			21884	01/04/2021	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	06/26/2026
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)