Ionis Pharmaceuticals, Inc. (IONS)
NASDAQ: IONS · Real-Time Price · USD
75.56
-0.22 (-0.29%)
At close: May 22, 2026, 4:00 PM EDT
76.06
+0.50 (0.66%)
After-hours: May 22, 2026, 5:31 PM EDT
Ionis Pharmaceuticals Employees
Ionis Pharmaceuticals had 1,402 employees as of December 31, 2025. The number of employees increased by 333 or 31.15% compared to the previous year.
Employees
1,402
Change (1Y)
333
Growth (1Y)
31.15%
Revenue / Employee
$754,772
Profits / Employee
-$233,222
Market Cap
12.49B
Employees Chart
Employees History
| Date | Employees | Change (1Y) | Growth (1Y) |
|---|---|---|---|
| Dec 31, 2025 | 1,402 | 333 | 31.15% |
| Dec 31, 2024 | 1,069 | 142 | 15.32% |
| Dec 31, 2023 | 927 | 131 | 16.46% |
| Dec 31, 2022 | 796 | 136 | 20.61% |
| Dec 31, 2021 | 660 | -97 | -12.81% |
| Dec 31, 2020 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2019 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2018 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2017 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
| Dec 31, 2016 | Upgrade Pro | Upgrade Pro | Upgrade Pro |
Related Stocks
| Company Name | Employees |
|---|---|
| BioMarin Pharmaceutical | 3,221 |
| Jazz Pharmaceuticals | 2,890 |
| Axsome Therapeutics | 1,220 |
| Ascendis Pharma | 1,189 |
| Exelixis | 1,077 |
| Madrigal Pharmaceuticals | 915 |
| BridgeBio Pharma | 839 |
| Arrowhead Pharmaceuticals | 711 |
IONS News
- 4 days ago - Ionis Pharmaceuticals Transcript: RBC Capital Markets Global Healthcare Conference 2026 - Transcripts
- 5 days ago - Ionis Pharmaceuticals initiated with a Buy, named a top pick at Citi - TheFly
- 5 days ago - Ionis Pharmaceuticals Touts $3B TRYNGOLZA Opportunity, Pipeline Readouts at Conference - MarketBeat
- 9 days ago - Ionis Pharmaceuticals participates in a conference call with Cantor - TheFly
- 9 days ago - Ionis announces Biogen’s CELIA study did not meet primary endpoint - TheFly
- 9 days ago - Ionis partner Biogen announces topline results from Phase 2 CELIA study of diranersen (BIIB080): first study to show reduction in tau pathology and cognitive benefit in patients with early Alzheimer's disease - Business Wire
- 11 days ago - Ionis Pharmaceuticals Transcript: Bank of America Global Healthcare Conference 2026 - Transcripts
- 19 days ago - Ionis to host 2026 virtual Annual Meeting of Stockholders - Business Wire