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ION582

Page updated ·next FDA decision on the calendar ·Data as of Nov 5, 2026 9:00 PM ET

ION582 is an Ionis Pharmaceuticals Inc. program. Its next catalyst is a Readout in Aug 2027. Every date links its source.

IONS catalyst hub

All upcoming FDA decision dates on the 2026 PDUFA calendar

About this program

Sponsor: Ionis Pharmaceuticals Inc. (IONS). We track 1 catalyst event for this program: 1 upcoming and 0 in the record. A PDUFA date is the FDA's target date to complete review of a marketing application; a readout is the sponsor's expected date for clinical trial results. What a PDUFA date is · why we do not compare trial results across drugs.

Catalyst history

Readout · Aug 2027IONS

Specialist biotech funds holding IONS, 13F for the quarter ended June 30, 2026

FundSharesValue at quarter endFiling
Baker Bros. Advisors2,047,727$162.4 millionfiled August 14, 2026
Perceptive Advisors566,000$44.9 millionfiled August 14, 2026

13F reports list long positions in common stock at quarter end, are due 45 days later, and show no short positions or later trades. Notes, warrants and other instruments are not counted as shares.

Questions

When is ION582's next FDA decision or readout?

The next tracked catalyst for ION582 is a Readout in Aug 2027.

What happened at ION582's most recent FDA decision?

No FDA decision for ION582 is in our archive yet.

Who makes ION582?

Ionis Pharmaceuticals Inc. (IONS).

Where does this data come from?

FDA announcements, sponsor press releases and SEC filings; every date on this page links its source.