Ionis Pharmaceuticals Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:IONS Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
03 May 24	SellUS$256,277	Joseph Klein	Individual	6,000	US$42.98
16 Feb 24	SellUS$17,219	Brett Monia	Individual	387	US$44.49
02 Feb 24	SellUS$91,752	C. Bennett	Individual	1,853	US$49.52
02 Feb 24	SellUS$98,135	Richard Geary	Individual	1,961	US$50.04
02 Feb 24	SellUS$105,272	Elizabeth Hougen	Individual	2,125	US$49.54
02 Feb 24	SellUS$97,410	Patrick O'Neil	Individual	1,961	US$49.67
02 Feb 24	SellUS$105,404	Onaiza Cadoret-Manier	Individual	2,125	US$49.60
02 Feb 24	SellUS$1,160,303	Brett Monia	Individual	23,501	US$49.37
02 Feb 24	SellUS$102,701	Eugene Schneider	Individual	2,071	US$49.59
02 Feb 24	SellUS$654,709	Eric Swayze	Individual	12,680	US$52.00
25 Jan 24	SellUS$333,788	Patrick O'Neil	Individual	6,450	US$51.75
25 Jan 24	SellUS$118,249	Brett Monia	Individual	2,285	US$51.75

Insider Trading Volume

Insider Buying: IONS insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of IONS?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	5,967	0.00409%
State or Government	63,582	0.0436%
General Public	159,383	0.109%
Individual Insiders	1,171,069	0.803%
Institutions	144,445,851	99%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 78.18% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
15%	FMR LLC	21,862,735	US$815.7m	1.59%	0.05%
11.6%	T. Rowe Price Group, Inc.	16,839,315	US$628.3m	-3.54%	0.06%
9.21%	The Vanguard Group, Inc.	13,430,456	US$501.1m	-5.44%	0.01%
6.7%	BlackRock, Inc.	9,771,891	US$364.6m	7.89%	0.01%
5.69%	Bellevue Asset Management AG	8,299,514	US$309.7m	-4.76%	3.71%
3.91%	Wellington Management Group LLP	5,695,699	US$212.5m	23.4%	0.03%
3.06%	ClearBridge Investments, LLC	4,466,191	US$166.6m	-5.13%	0.13%
2.85%	State Street Global Advisors, Inc.	4,155,664	US$155.0m	3.66%	0.01%
2.56%	Pictet Asset Management Limited	3,739,757	US$139.5m	6.29%	0.1%
2.37%	Tweedy, Browne Company LLC	3,454,676	US$128.9m	0%	1.71%
2.19%	Macquarie Investment Management Business Trust	3,200,578	US$119.4m	3.64%	0.14%
1.67%	BVF Partners L.P.	2,428,613	US$90.6m	0%	2.72%
1.62%	Geode Capital Management, LLC	2,364,256	US$88.2m	3.88%	0.01%
1.38%	OrbiMed Advisors LLC	2,013,033	US$75.1m	-2.51%	1.07%
0.96%	ARK Investment Management LLC	1,399,852	US$52.2m	-26.5%	0.4%
0.94%	Deep Track Capital, LP	1,373,475	US$51.2m	9.96%	1.62%
0.89%	Charles Schwab Investment Management, Inc.	1,301,368	US$48.6m	2.04%	0.01%
0.88%	Point72 Asset Management, L.P.	1,282,068	US$47.8m	6.99%	0.1%
0.8%	Norges Bank Investment Management	1,171,936	US$43.7m	0%	no data
0.74%	Two Sigma Investments, LP	1,083,879	US$40.4m	35.2%	0.11%
0.71%	Two Sigma Advisers, LP	1,040,111	US$38.8m	33.9%	0.09%
0.69%	Adage Capital Management, L.P.	1,000,000	US$37.3m	-27.8%	0.07%
0.63%	Candriam	911,897	US$34.0m	45%	0.1%
0.62%	TD Asset Management, Inc.	898,362	US$33.5m	-6.11%	0.03%
0.58%	Capital Research and Management Company	839,463	US$31.3m	0%	no data