| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 8.85% | +49.2% | $35.2M | $12.1M | 5.73M | +52.7% | Nantahala Capital Management, LLC | Sep 30, 2025 |
| LYNCH TIMOTHY P | 7.9% | +26.7% | $31.5M | $6.38M | 5.13M | +25.4% | Timothy P. Lynch | Sep 30, 2025 |
| TANG CAPITAL MANAGEMENT LLC | 7.9% | $47.7M | 5M | TANG CAPITAL MANAGEMENT, LLC | Mar 31, 2025 | |||
| BlackRock, Inc. | 6.9% | $41.6M | 4.36M | BlackRock, Inc. | Dec 31, 2024 | |||
| Caligan Partners LP | 6.4% | +24% | $25.4M | $4.89M | 4.14M | +23.8% | Caligan Partners LP | Sep 30, 2025 |
| PERCEPTIVE ADVISORS LLC | 3.8% | -43.3% | $18.8M | -$12.5M | 2.47M | -40.1% | Perceptive Advisors LLC | Jun 30, 2025 |
| Medytox Inc. | 3.4% | $20.4M | 2.14M | Medytox Inc. | Dec 31, 2024 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Change | Price | Investors |
|---|---|---|---|---|---|
| 2025 Q3 | 54.3M | $333M | -$49M | $6.14 | 158 |
| 2025 Q2 | 58.3M | $537M | +$27.3M | $9.21 | 171 |
| 2025 Q1 | 54.3M | $653M | +$25.5M | $12.03 | 178 |
| 2024 Q4 | 51.9M | $573M | +$6.64M | $11.04 | 164 |
| 2024 Q3 | 50.3M | $815M | -$14.8M | $16.20 | 164 |
| 2024 Q2 | 51.3M | $557M | +$21.9M | $10.85 | 157 |
| 2024 Q1 | 49.3M | $691M | +$47.4M | $14.00 | 159 |
| 2023 Q4 | 87.2K | $918K | +$324K | $10.53 | 2 |
| 2023 Q3 | 41.3M | $378M | +$40.4M | $9.14 | 133 |
| 2023 Q2 | 37.1M | $270M | +$15.2M | $7.27 | 129 |
| 2023 Q1 | 34.1M | $289M | +$41.9M | $8.46 | 123 |
| 2022 Q4 | 29.1M | $219M | +$13.7M | $7.51 | 113 |
| 2022 Q3 | 25.5M | $205M | -$5.1M | $8.05 | 118 |
| 2022 Q2 | 25.1M | $292M | +$15.7M | $11.60 | 113 |
| 2022 Q1 | 22.9M | $256M | +$24.9M | $11.22 | 112 |
| 2021 Q4 | 20.5M | $133M | +$17.2M | $6.51 | 100 |
| 2021 Q3 | 17.4M | $133M | +$1.93M | $7.62 | 108 |
| 2021 Q2 | 16.2M | $205M | +$96.5M | $12.65 | 109 |
| 2021 Q1 | 8.61M | $112M | +$17.8M | $12.99 | 92 |
| 2020 Q4 | 6.24M | $21M | +$2.38M | $3.36 | 75 |
| 2020 Q3 | 4.54M | $18.1M | -$10.3M | $3.91 | 74 |
| 2020 Q2 | 7.89M | $41.8M | -$20.3M | $5.30 | 75 |
| 2020 Q1 | 11.5M | $47.5M | -$12M | $4.15 | 89 |
| 2019 Q4 | 14M | $170M | +$67.3M | $12.17 | 100 |
| 2019 Q3 | 5.52M | $86.3M | +$6.51M | $15.62 | 89 |
| 2019 Q2 | 5.28M | $77.2M | +$17.3M | $14.62 | 100 |
| 2019 Q1 | 3.76M | $84.8M | -$5.15M | $22.57 | 87 |
| 2018 Q4 | 5.41M | $64.3M | -$25.5M | $11.90 | 71 |
| 2018 Q3 | 6.64M | $124M | +$57.7M | $18.62 | 66 |
| 2018 Q2 | 3.52M | $98.6M | +$802K | $27.99 | 54 |
| 2018 Q1 | 4.45M | $40.1M | +$40.1M | $9.03 | 39 |
| 2016 Q1 | 12.8K | $286K | $0 | $22.41 | 1 |