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IONIS PHARMACEUTICALS INC (IONS) Ownership Summary
Institutional Holders
Total Number of Holders 409
% of Shares Outstanding 99.55%
Total Shares Held 145,310,376
Total Value of Holdings $6,925,492,520.16
Net Activity 1,713,602
 
Top 5 Holders Shares Held Shares Changed
FMR LLC 21,862,735 341,863
VANGUARD GROUP INC 13,430,456 (773,025)
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. 13,317,112 115,659
BLACKROCK INC. 9,771,891 714,361
BELLEVUE GROUP AG 8,299,514 (414,473)

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades453
Number of Buys00
Number of Sells453
Net Activity (26,911) (528,908)
 
Top 5 TradesShares Traded Date
BERTHELSEN SPENCER R16,0006/17/2024
BERTHELSEN SPENCER R16,0006/17/2024
BAROLDI JOSEPH4,0064/16/2024
BIRCHLER BRIAN9054/16/2024
BAROLDI JOSEPH10,8384/15/2024

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G   T. ROWE PRICE INVESTMENT MANAGEMENT, INC.  02/14/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BB BIOTECH AG  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in Original Format  SC 13G/A   FMR LLC  02/09/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BLACKROCK INC.  01/26/24   File this document to a folder.