Ionis Pharmaceuticals Inc

IONS

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0000874015

SEC filings (opens in a new tab)

In the last 90 days, Ionis Pharmaceuticals Inc insiders filed 1 open-market purchase and 3 sales; 515 institutions reported holding it in 13F filings for Q2 2026, worth $14.3B in total; ARK Invest is the only superinvestor holding it.

Q1 2024 vs. Q4 2023

How the institutions holding Ionis Pharmaceuticals Inc changed between Q4 2023 and Q1 2024.

All holders in Q1 2024 All holders in Q4 2023

13F holders of IONS: Q4 2023 compared with Q1 2024
Measure	Q4 2023	Of which not filed for Q1 2024	Q1 2024	Change
Holders	365	2	361	−2
Shares	142.5M	20.6K	142.2M	−349.1K (−0.2%)
Value	$7.21B	$1.04M	$6.17B	−$1.04B (−14.4%)

2 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (49)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to IONS in Q1 2024
Institution	Shares	Value	% of portfolio
Artisan Partners Limited Partnership	416,729	$18.1M	0.03%
Cutter Capital Management, LP	289,366	$12.5M	4.84%
Zimmer Partners, LP	270,300	$11.7M	0.25%
J. Goldman & Co LP	231,424	$10.0M	0.45%
Avidity Partners Management LP	130,000	$5.64M	0.20%
Campbell & CO Investment Adviser LLC	94,772	$4.11M	0.35%
Walleye Capital LLC	89,130	$3.86M	0.04%
HRT Financial LP	66,503	$2.88M	0.02%
Susquehanna Fundamental Investments, LLC	45,574	$1.98M	0.09%
Lighthouse Investment Partners, LLC	30,379	$1.32M	0.08%
Point72 (DIFC) Ltd	28,491	$1.24M	0.10%
Pearl River Capital, LLC	25,959	$1.13M	0.18%
Cetera Investment Advisers	21,758	$943.2K	0.00%
Toroso Investments, LLC	20,405	$884.6K	0.02%
Edgestream Partners, L.P.	17,646	$765.0K	0.04%
Simplicity Wealth,LLC	16,229	$703.5K	0.02%
Entropy Technologies, LP	14,542	$630.4K	0.07%
Mirae Asset Global Investments Co., Ltd.	15,081	$613.4K	0.00%
Suvretta Capital Management, LLC	10,800	$468.2K	0.02%
Capula Management Ltd	10,217	$442.9K	0.01%
Cypress Capital, LLC	10,000	$433.5K	0.12%
XTX Topco Ltd	8,585	$372.2K	0.05%
Centiva Capital, LP	8,474	$367.3K	0.02%
International Assets Investment Management, LLC	7,607	$334.3K	0.03%
Twin Tree Management, LP	7,563	$327.9K	0.01%
Point72 Asia (Singapore) Pte. Ltd.	6,986	$302.8K	0.08%
Diversified Trust Co	6,015	$260.8K	0.01%
Acadian Asset Management LLC	5,891	$255.0K	0.00%
Brevan Howard Capital Management LP	4,924	$213.5K	0.02%
Paloma Partners Management Co	4,909	$212.8K	0.03%
ADAR1 Capital Management, LLC	2,900	$125.7K	0.03%
CIBC Private Wealth Group, LLC	2,168	$95.3K	0.00%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	1,104	$47.9K	0.00%
Sunbelt Securities, Inc.	1,014	$44.0K	0.00%
Pacer Advisors, Inc.	971	$42.1K	0.00%
Mather Group, LLC.	671	$33.9K	0.00%
Riverview Trust Co	476	$20.6K	0.02%
Elequin Capital LP	474	$20.5K	0.00%
Leonteq Securities AG	212	$9.19K	0.00%
LifeSteps Financial, Inc.	200	$8.67K	0.01%
Catalyst Funds Management Pty Ltd	200	$8.67K	0.00%
Exchange Traded Concepts, LLC	82	$3.56K	0.00%
National Bank of Canada	80	$3.13K	0.00%
Sandy Spring Bank	34	$1.47K	0.00%
Smartleaf Asset Management LLC	26	$1.16K	0.00%
CoreCap Advisors, LLC	26	$1.13K	0.00%
Bokf, NA	7	$308	0.00%
Abich Financial Wealth Management LLC	4	$173	0.00%
Capital Advisors, Ltd. LLC	7	$0	0.00%

Sold out (51)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of IONS in Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Camber Capital Management LP	865,000	$43.8M
Connor, Clark & Lunn Investment Management Ltd.	127,954	$6.47M
Cinctive Capital Management LP	73,256	$3.71M
HighVista Strategies LLC	57,348	$2.90M
Cowen and Company, LLC	51,415	$2.60M
Estate Counselors, LLC	32,800	$1.66M
Fred Alger Management, LLC	24,054	$1.22M
Point72 Hong Kong Ltd	20,015	$1.01M
Calamos Advisors LLC	16,379	$828.6K
Friedenthal Financial	14,225	$719.6K
Granite Bay Wealth Management, LLC	13,579	$626.0K
Captrust Financial Advisors	10,108	$511.4K
Point72 Middle East FZE	9,983	$505.0K
Fox Run Management, L.L.C.	9,271	$469.0K
Weiss Asset Management LP	5,874	$297.2K
Kapitalo Investimentos Ltda	5,714	$289.1K
Legato Capital Management LLC	5,455	$276.0K
Capital Wealth Planning, LLC	5,408	$273.6K
Dynamic Technology Lab Private Ltd	5,273	$267.0K
Oracle Alpha Inc.	5,019	$253.9K
Mercer Global Advisors Inc	4,676	$237.0K
Mitchell & Pahl Private Wealth, LLC	4,617	$233.6K
Koss-Olinger Consulting, LLC	4,539	$230.0K
MML Investors Services, LLC	4,324	$219.0K
Prudential Financial Inc	4,269	$216.0K
AQR Capital Management LLC	4,300	$214.3K
Checchi Capital Advisers, LLC	4,234	$214.2K
Berkshire Asset Management LLC	4,180	$211.5K
Cetera Advisor Networks LLC	4,081	$206.5K
CIBC Asset Management Inc	4,002	$202.5K
Itau Unibanco Holding S.A.	1,429	$72.3K
Group One Trading, L.P.	1,018	$51.5K
nVerses Capital, LLC	–	$40.5K
Glassman Wealth Services	686	$34.7K
Tennessee Valley Asset Management Partners	673	$34.0K
Advisory Services Network, LLC	519	$26.3K
ORG Partners LLC	400	$20.2K
Quarry LP	200	$10.1K
Colonial Trust Co	120	$6.06K
Ronald Blue Trust, Inc.	137	$6.00K
Garner Asset Management Corp	115	$5.72K
DAGCO, Inc.	80	$4.05K
Rockbridge Investment Management, LCC	58	$2.94K
SOA Wealth Advisors, LLC.	50	$2.53K
Avion Wealth	25	$1.00K
Focused Wealth Management, Inc	16	$809
Fortitude Family Office, LLC	14	$708
JNBA Financial Advisors	7	$355
Fairfield, Bush & Co.	4	$202
Tucker Asset Management LLC	3	$152
Cape Investment Advisory, Inc.	2	$101

Not filed for Q1 2024 yet (2)

Institutions that held Ionis Pharmaceuticals Inc at the end of Q4 2023 and haven't filed a 13F for Q1 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IONS in Q4 2023 that haven't filed for Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Sawtooth Solutions, LLC	12,239	$619.2K
AtonRa Partners	8,396	$424.8K