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IONIS PHARMACEUTICALS INC

IONIS PHARMACEUTICALS INCIONSEarnings & Financial Report

Nasdaq · Health Care · Pharmaceutical Preparations

Ionis Pharmaceuticals, Inc. is a biotechnology company that specializes in discovering and developing antisense therapy, as well as RNA interference and CRISPR therapeutics. The company was founded in 1989 is based in Carlsbad, California. The company was previously known as Isis Pharmaceuticals until December 2015.

Top Holders

Holder% OwnedSharesChangeAs of
FMR LLC15.00%
21.5M
—2024-02-09
The Vanguard Group9.90%
14.2M
▼ -0.17pp2024-02-13
T. Rowe Price Investment Management, Inc.9.00%
14.2M
▼ -0.20pp2024-11-14
BlackRock, Inc.6.30%
9.1M
—2024-01-26
Wellington Management Group LLP5.76%
9.1M
—2024-11-08
BB Biotech AG5.00%
850.0K
▼ -1.00pp2024-11-14

Insider Transactions

Net 90d: −$54.95M · buys $84.4K / sells $55.04M
Range:
Action:
Role:
InsiderRoleAction
2026-04-16Brian BirchlerEVP, Corp and Development OpsSell (open market)
973
$75.04$73.0K
2026-04-16Joseph BaroldiEVP, Chief Business OfficerSell (open market)
5.6K
$74.56$419.0K
2026-04-16Kyle JenneEVP, Chf GL Pdt Str OfcrSell (open market)
4.9K
$75.17$368.5K
2026-04-15Brian BirchlerEVP, Corp and Development OpsOption exercise
1.9K
$0.00$0
2026-04-15Joseph BaroldiEVP, Chief Business OfficerOption exercise
10.8K
$0.00$0
2026-04-15Kyle JenneEVP, Chf GL Pdt Str OfcrOption exercise
12.2K
$0.00$0
2026-04-15PARSHALL B LYNNEDirectorSell (open market)
4.5K
$76.19$340.3K
2026-04-15PARSHALL B LYNNEDirectorSell (open market)
534
$76.97$41.1K
2026-04-02Devers Shannon L.EVP, Chief Human Resources OfcSell (open market)
6.2K
$74.05$458.6K
2026-04-01KLEIN JOSEPH IIIDirectorOption exercise
12.0K
$38.06$456.7K
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