Ionis Pharmaceuticals, Inc.

Ionis Pharmaceuticals, Inc.

IONSยทNASDAQ

$73.82

+1.2%
HealthcareBiotechnology

Ionis Pharmaceuticals, Inc. discovers and develops RNA-targeted therapeutics in the United States. The company offers SPINRAZA for spinal muscular atrophy (SMA) in pediatric and adult patients; TEGSEDI, an injection for the treatment of polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; and WAYLIVRA, a treatment for familial chylomicronemia syndrome and familial partial lipodystrophy. It also develops medicines for various indications that are in phase 3 study, including Eplontersen as a monthly self-administered subcutaneous injection to treat all types of TTR amyloidosis; Olezarsen for patients with severe hypertriglyceridemia (SHTG); Donidalorsen for patients with hereditary angioedema; ION363 for patients with amyotrophic lateral sclerosis; Pelacarsen for patients with established cardiovascular disease and elevated lipoprotein(a); and Tofersen to inhibit the production of superoxide dismutase 1. In addition, the company develops medicines for metabolic diseases, infectious diseases, renal diseases, ophthalmic diseases, and cancer. It has a strategic collaboration with Biogen Inc.; and collaboration and license agreement with AstraZeneca, Bayer AG, GlaxoSmithKline plc, Novartis AG, Roche, Janssen Biotech, Inc., and Flamingo Therapeutics, Inc. Ionis Pharmaceuticals, Inc. was founded in 1989 and is based in Carlsbad, California.

At a Glance

Live Snapshot
Market Cap$12.20B
EPS-2.3800
P/E Ratio-31.02
Earnings Date07/29/2026
-11.96%
Return on Invested Capital
-31%
3Y-35.0%
5Y+46.0%
10Y+340.0%
-77.90%
Return on Equity
1%
3Y+65.0%
5Y+30.0%
10Y+28.0%
-10.81%
Return on Assets
-28%
3Y+2.0%
5Y-42.0%
10Y+63.0%
Ionis Pharmaceuticals, Inc.

Ionis Pharmaceuticals, Inc. Management Team

IONS ยท NASDAQ
MD

Mr. Darren Gonzales

Chief Accounting Officer & Senior Vice President

male
DR

Dr. Richard S. Geary Ph.D.

Executive Vice President & Chief Development Officer

Compensation

$1,012,390

Born 1958(Age 68)
MK

Mr. Kyle Jenne

Executive Vice President & Chief Global Product Strategy Officer

Compensation

$804,966

Born 1976(Age 50)
male
DC

Dr. C. Frank Bennett BSc, Ph.D.

Executive Vice President & Chief Scientific Officer

Compensation

$651,639

Born 1957(Age 69)
ME

Ms. Elizabeth L. Hougen M.A., M.B.A., M.S.

Executive Vice President of Finance & Chief Financial Officer

Compensation

$1,155,389

Born 1962(Age 64)
female
MP

Mr. Patrick R. O'Neil Esq.

Executive Vice President, Chief Legal Officer, General Counsel & Corporate Secretary

Compensation

$971,520

Born 1974(Age 52)
male
DB

Dr. Brett P. Monia Ph.D.

Founder, Chief Executive Officer & Director

Compensation

$2,086,449

Born 1961(Age 65)
MT

Ms. Tracy Berns J.D.

Senior Vice President and Chief Compliance & Quality Assurance Officer

female
MD

Mr. D. Wade Walke Ph.D.

Senior Vice President of Investor Relations

male
MH

Ms. Hayley Soffer

Vice President of Corporate Communications

female
ions

Ionis Pharmaceuticals, Inc. Insider Positioning

IONS ยท NASDAQ

During the last 12 months, insiders have sold $90.10M worth of IONS shares, with no buying activity reported.

3 Months

Bought

0

0.00

Sold

318.3K

23.32M

Net Activity

-23.3M

-$23.32M

3-6 Months

Bought

0

0.00

Sold

195.2K

16.12M

Net Activity

-16.1M

-$16.12M

6-9 Months

Bought

0

0.00

Sold

443.9K

31.03M

Net Activity

-31.0M

-$31.03M

9-12 Months

Bought

0

0.00

Sold

339.9K

19.62M

Net Activity

-19.6M

-$19.62M

Top Buyers

No buying activity

Top Sellers

1
HEL

Hougen Elizabeth L

Officer: Evp, Finance & Cfo

262.4K sharesโ€ข3 transactions

$18.71M

2
MBP

Monia Brett P

Director, Officer: Chief Executive Officer

160.7K sharesโ€ข8 transactions

$11.92M

3
OPR

O'Neil Patrick R.

Officer: Evp Clo & General Counsel

150.4K sharesโ€ข9 transactions

$9.58M

4
GRS

Geary Richard S

Officer: Evp, Chief Development Officer

117.9K sharesโ€ข7 transactions

$7.72M

5
LJ

Loscalzo Joseph

Director

92.5K sharesโ€ข5 transactions

$6.70M

Insider Activity Analysis

Net Insider Sentiment

Bearish

Strong bearish signal with $90.10M net selling. Heavy insider selling may indicate concerns about valuation or near-term prospects.

Buy/Sell Ratio

0.00:1

Very poor ratio. Heavy selling with minimal buying suggests insiders may be concerned about valuation or outlook.

Recent Trend (3 Months)

$23.32M

Heavy recent selling activity. Recent insider sales notably exceed purchasesโ€”may warrant investigation into company developments.

Insider Participation

High Selling

5 insider sellers vs. 0 buyers. Widespread selling across multiple insiders may signal concerns.

Insider Activity Insight

Multiple red flags: Heavy selling, numerous sellers, and continued recent selling create a concerning pattern. Investigate fundamental drivers and consider whether company guidance or industry conditions have deteriorated.

SEC Filings

IONS - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
DEF 14A

DEF 14A 2026

N/A

April 23, 2026
June 04, 2026
2026
DEF 14A

DEF 14A 2025

N/A

April 25, 2025
June 05, 2025
2025
DEF 14A

DEF 14A 2024

N/A

April 25, 2024
June 06, 2024
2024
DEF 14A

DEF 14A

N/A

April 20, 2023
April 20, 2023
ย 
DEF 14A

DEF 14A 2022

N/A

April 20, 2022
June 02, 2022
2022
DEF 14A

DEF 14A 2021

N/A

April 23, 2021
June 02, 2021
2021
DEF 14A

DEF 14A 2020

N/A

April 24, 2020
June 04, 2020
2020
DEF 14A

DEF 14A 2019

N/A

April 26, 2019
June 06, 2019
2019
DEF 14A

DEF 14A 2018

N/A

April 11, 2018
April 11, 2018
2018
DEF 14A

DEF 14A 2017

N/A

April 10, 2017
May 24, 2017
2017
Showing 1 to 10 of 30 filings