$79.76
-1.06-1.31%
At close: Dec 15, 4:00 PM EST
$79.76
N/A
After Hours: 4:03 PM EST
Comments
Loading...
Ionis Pharmaceuticals Short Interest Report
IONSNASDAQ
Ionis Pharmaceuticals Stock Short Interest Report | NASDAQ:IONS | Benzinga
Short interest in Ionis Pharmaceuticals Inc (NASDAQ:IONS) increased during the last reporting period, rising from 14.22M to 15.63M. This put 12.73% of the company's publicly available shares short.
Based on the recent average volume of 2.62M shares traded per day, it would take 5.95 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.
Short Interest
15.63M
Short Interest %
12.7%
Days to Cover
5.95
| Get Alert | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| IONS | Ionis Pharmaceuticals, Inc. Co | 11/28/2025 | 12/09/2025 | 12.73% | 122,710,999 | 15,626,208 | 2,624,122 | 5.95 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 11/14/2025 | 11/25/2025 | 11.59% | 122,710,999 | 14,223,973 | 3,736,097 | 3.81 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 10/31/2025 | 11/11/2025 | 10.32% | 122,710,999 | 12,661,274 | 1,914,799 | 6.61 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 10/15/2025 | 10/24/2025 | 11.40% | 120,127,835 | 13,699,358 | 2,279,250 | 6.01 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 09/30/2025 | 10/09/2025 | 10.22% | 120,127,835 | 12,278,792 | 1,991,945 | 6.16 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 09/15/2025 | 09/24/2025 | 9.97% | 120,127,835 | 11,972,594 | 4,802,271 | 2.49 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 08/29/2025 | 09/10/2025 | 8.74% | 120,127,835 | 10,502,338 | 1,766,631 | 5.94 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 08/15/2025 | 08/26/2025 | 8.98% | 120,127,835 | 10,785,168 | 2,150,609 | 5.01 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 07/31/2025 | 08/11/2025 | 9.64% | 120,127,835 | 11,580,340 | 1,778,123 | 6.51 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 07/15/2025 | 07/24/2025 | 9.45% | 136,328,661 | 12,889,193 | 2,201,808 | 5.85 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 06/30/2025 | 07/10/2025 | 10.37% | 136,328,661 | 14,139,627 | 1,956,419 | 7.23 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 06/13/2025 | 06/25/2025 | 10.43% | 136,328,661 | 14,225,565 | 1,430,495 | 9.94 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 05/30/2025 | 06/10/2025 | 10.88% | 136,328,661 | 14,836,205 | 1,410,037 | 10.52 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 05/15/2025 | 05/27/2025 | 11.20% | 136,328,661 | 15,266,156 | 1,630,549 | 9.36 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 04/30/2025 | 05/09/2025 | 10.73% | 136,328,661 | 14,629,509 | 1,411,113 | 10.37 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 04/15/2025 | 04/25/2025 | 10.67% | 136,328,661 | 14,547,282 | 2,356,410 | 6.17 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 03/31/2025 | 04/09/2025 | 9.78% | 136,328,661 | 13,336,000 | 1,395,099 | 9.56 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 03/14/2025 | 03/25/2025 | 9.40% | 136,328,661 | 12,814,848 | 1,708,250 | 7.5 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 02/28/2025 | 03/11/2025 | 9.43% | 136,328,661 | 12,853,622 | 2,018,209 | 6.37 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 02/14/2025 | 02/26/2025 | 9.30% | 136,328,661 | 12,673,485 | 1,340,248 | 9.46 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 01/31/2025 | 02/11/2025 | 8.96% | 135,261,176 | 12,124,536 | 1,831,301 | 6.62 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 01/15/2025 | 01/27/2025 | 7.57% | 135,261,176 | 10,239,965 | 1,408,358 | 7.27 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 12/31/2024 | 01/10/2025 | 8.06% | 135,261,176 | 10,901,561 | 1,682,606 | 6.48 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 12/13/2024 | 12/24/2024 | 7.78% | 135,261,176 | 10,528,956 | 1,379,548 | 7.63 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 11/29/2024 | 12/10/2024 | 7.72% | 135,261,176 | 10,448,423 | 1,633,097 | 6.4 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 11/15/2024 | 11/26/2024 | 8.17% | 135,261,176 | 11,050,361 | 1,195,779 | 9.24 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 10/31/2024 | 11/11/2024 | 7.94% | 135,261,176 | 10,740,418 | 1,210,170 | 8.88 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 10/15/2024 | 10/24/2024 | 7.31% | 135,074,980 | 9,869,851 | 1,420,544 | 6.95 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 09/30/2024 | 10/09/2024 | 7.80% | 135,074,980 | 10,533,799 | 1,814,522 | 5.81 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 09/13/2024 | 09/24/2024 | 7.86% | 135,074,980 | 10,614,257 | 3,008,213 | 3.53 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 08/30/2024 | 09/11/2024 | 8.22% | 123,574,980 | 10,159,853 | 911,068 | 11.15 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 08/15/2024 | 08/26/2024 | 8.01% | 123,574,980 | 9,902,786 | 1,131,816 | 8.75 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 07/31/2024 | 08/09/2024 | 7.66% | 123,574,980 | 9,461,204 | 1,310,348 | 7.22 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 07/15/2024 | 07/24/2024 | 7.59% | 123,329,263 | 9,365,346 | 1,294,930 | 7.23 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 06/28/2024 | 07/10/2024 | 7.72% | 123,329,263 | 9,520,997 | 2,063,118 | 4.61 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 06/14/2024 | 06/26/2024 | 7.02% | 123,329,263 | 8,653,199 | 935,006 | 9.25 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 05/31/2024 | 06/11/2024 | 6.97% | 123,329,263 | 8,597,493 | 1,356,240 | 6.34 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 05/15/2024 | 05/24/2024 | 6.99% | 123,329,263 | 8,625,854 | 1,102,677 | 7.82 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 04/30/2024 | 05/09/2024 | 7.10% | 123,329,263 | 8,753,675 | 846,483 | 10.34 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 04/15/2024 | 04/24/2024 | 7.74% | 123,209,741 | 9,534,366 | 883,254 | 10.79 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 03/28/2024 | 04/09/2024 | 7.71% | 123,472,803 | 9,522,759 | 952,663 | 10 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 03/15/2024 | 03/26/2024 | 7.83% | 123,472,803 | 9,665,680 | 1,078,789 | 8.96 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 02/29/2024 | 03/11/2024 | 7.38% | 123,472,803 | 9,106,796 | 1,643,039 | 5.54 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 02/15/2024 | 02/27/2024 | 7.34% | 123,472,803 | 9,064,713 | 1,025,039 | 8.84 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 01/31/2024 | 02/09/2024 | 6.97% | 121,193,125 | 8,451,609 | 1,304,996 | 6.48 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 01/12/2024 | 01/24/2024 | 7.05% | 121,193,125 | 8,543,328 | 1,195,918 | 7.14 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 12/29/2023 | 01/10/2024 | 6.80% | 121,193,125 | 8,242,800 | 1,091,677 | 7.55 | Get Alert |
| IONS | Ionis Pharmaceuticals, Inc. Co | 12/15/2023 | 12/27/2023 | 7.07% | 121,193,125 | 8,563,127 | 1,247,402 | 6.86 | Get Alert |
Looking for the most shorted stocks?
Market Resources
Trading Tools & Education
- Benzinga Pro Trading Platform
- Options Trading Strategies and News
- Stock Market Trading Ideas and Analysis
- Technical Analysis Charts and Indicators
- Fundamental Analysis and Valuation
- Day Trading Guides and Strategies
- Live Investors Events
- Pre market Stock Analysis and News
- Cryptocurrency Market Analysis and News
Ring the Bell
A newsletter built for market enthusiasts by market enthusiasts. Top stories, top movers, and trade ideas delivered to your inbox every weekday before and after the market closes.
© 2025 Benzinga | All Rights Reserved