Ionis: Eric Swayze’s son sells 53 shares for taxes

Q: How many IONS shares did Eric Swayze’s son sell, and at what price?

Eric Swayze’s son indirectly sold 53 common shares on October 16, 2026, at $43.5389 per share. The sale was automatic to cover required tax withholding, and no Rule 10b5-1 plan is reported.

Q: How are IONS restricted stock units paid when they vest?

The restricted stock units vest in four equal annual installments. Upon vesting, they are paid in whole shares of Ionis common stock or cash, as the company may determine.

The 53-share sale was an automatic transaction to cover required tax withholding after a 125-share RSU vesting.

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Rhea-AI Filing Summary

Ionis Pharmaceuticals Inc. (IONS) reported that EVP Research Eric Swayze’s son indirectly acquired 125 common shares upon restricted stock unit vesting and release on October 15, 2026, then sold 53 shares on October 16, 2026, at $43.5389 per share. The sale was automatic to cover required tax withholding under the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice; no Rule 10b5-1 plan is reported. The post-transaction indirect RSU balance was 486 units; a separate entry lists 21,759 directly held common shares as of October 15, 2026.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider Swayze Eric

Role EVP Research

Sold 53 shs ($2K)

Approx. gross sale proceeds $2K

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Sale	Common Stock ^F2	53	$43.5389	$2K
Exercise	Restricted Stock Unit ^{F3, F4}	125	$0.00	$0.00
Exercise	Common Stock ^F1	125	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit — 486 contracts (Indirect, by Son); Common Stock — 390 shares (Indirect, by Son); Common Stock — 21,759 shares (Direct)

Footnotes (4)

F1. Acquired pursuant to vesting and release of shares in accordance with a Restricted Stock Unit award.
F2. The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.
F3. Each Restricted Stock Unit represents a contingent right to receive one share of Ionis common stock, or its equivalent cash value.
F4. Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

Key Figures

Common shares sold: 53 shares Sale price: $43.5389 per share Common shares acquired: 125 shares +2 more

5 metrics

Common shares sold 53 shares Indirect sale by Eric Swayze’s son on October 16, 2026

Sale price $43.5389 per share October 16, 2026 sale

Common shares acquired 125 shares Acquired upon restricted stock unit vesting and release on October 15, 2026

RSU position after transaction 486 restricted stock units Indirect position reported following the October 15, 2026 transaction

Direct common shares held 21,759 shares Separate direct holding entry as of October 15, 2026

Key Terms

Restricted Stock Unit, tax withholding obligations, contingent right

3 terms

Restricted Stock Unit financial

"vesting and release of shares in accordance with a Restricted Stock Unit award"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax withholding obligations financial

"automatic sale to cover the required tax withholding obligations"

contingent right financial

"Each Restricted Stock Unit represents a contingent right to receive one share"

FAQ

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

How many IONS shares did Eric Swayze’s son sell, and at what price?

Eric Swayze’s son indirectly sold 53 common shares on October 16, 2026, at $43.5389 per share. The sale was automatic to cover required tax withholding, and no Rule 10b5-1 plan is reported.

How are IONS restricted stock units paid when they vest?

The restricted stock units vest in four equal annual installments. Upon vesting, they are paid in whole shares of Ionis common stock or cash, as the company may determine.

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

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Available on EDGAR 10/19/2026 - 09:40 PM EDT Accepted by SEC EDGAR 10/19/2026 - 09:40 PM EDT

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Swayze Eric

(Last)

(First)

(Middle)

2855 GAZELLE COURT

(Street)

CARLSBAD

CALIFORNIA

92010

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
IONIS PHARMACEUTICALS INC [ IONS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP Research

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/15/2026		M⁽¹⁾		125⁽¹⁾	A	$0.0	443	I	by Son
Common Stock	10/16/2026		S⁽²⁾		53⁽²⁾	D	$43.5389	390	I	by Son
Common Stock								21,759	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Unit	$0.0⁽³⁾	10/15/2026		M			125	⁽⁴⁾	⁽⁴⁾	Common Stock	125	$0.0	486	I	by Son

Explanation of Responses:

1. Acquired pursuant to vesting and release of shares in accordance with a Restricted Stock Unit award.

2. The sale was made pursuant to an automatic sale to cover the required tax withholding obligations pursuant to the 2011 Equity Incentive Plan Restricted Stock Unit Agreement and Grant Notice.

3. Each Restricted Stock Unit represents a contingent right to receive one share of Ionis common stock, or its equivalent cash value.

4. Restricted Stock Units vest in four equal annual installments. Upon vesting, the restricted stock units will be paid out in whole shares of Ionis common stock or cash as may be determined by the Company.

	By: Patrick R. O'Neil, attorney-in-fact For: Eric Swayze	10/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR