| 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 | 30 Sep 2025 |
| LYNCH TIMOTHY P | 7.9% | +26.7% | $31.5M | $6.38M | 5.13M | +25.4% | Timothy P. Lynch | 30 Sep 2025 |
| TANG CAPITAL MANAGEMENT LLC | 7.9% | $58.2M | 5M | TANG CAPITAL MANAGEMENT, LLC | 31 Mar 2025 | |||
| BlackRock, Inc. | 6.9% | $50.9M | 4.36M | BlackRock, Inc. | 31 Dec 2024 | |||
| Caligan Partners LP | 6.4% | +24% | $25.4M | $4.89M | 4.14M | +23.8% | Caligan Partners LP | 30 Sep 2025 |
| PERCEPTIVE ADVISORS LLC | 3.8% | -43.3% | $23.5M | -$15.7M | 2.47M | -40.1% | Perceptive Advisors LLC | 30 Jun 2025 |
| Medytox Inc. | 3.4% | $24.9M | 2.14M | Medytox Inc. | 31 Dec 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 | +$6.67M | $11.04 | 164 |
| 2024 Q3 | 50.3M | $815M | -$14.8M | $16.20 | 164 |
| 2024 Q2 | 51.3M | $557M | +$21.8M | $10.85 | 155 |
| 2024 Q1 | 49.3M | $691M | +$53.5M | $14.00 | 160 |
| 2023 Q4 | 45.5M | $480M | +$47.5M | $10.53 | 149 |
| 2023 Q3 | 41.4M | $379M | +$40.1M | $9.14 | 135 |
| 2023 Q2 | 37.3M | $271M | +$16.6M | $7.27 | 132 |
| 2023 Q1 | 34.1M | $289M | +$41.9M | $8.46 | 124 |
| 2022 Q4 | 29.3M | $220M | +$14.4M | $7.51 | 116 |
| 2022 Q3 | 25.6M | $206M | -$5.09M | $8.05 | 122 |
| 2022 Q2 | 25.3M | $294M | +$27.3M | $11.60 | 117 |
| 2022 Q1 | 23.1M | $258M | +$27.1M | $11.22 | 115 |
| 2021 Q4 | 20.6M | $133M | +$16.2M | $6.51 | 102 |
| 2021 Q3 | 17.6M | $135M | +$2.13M | $7.62 | 109 |
| 2021 Q2 | 16.2M | $205M | +$96.4M | $12.65 | 111 |
| 2021 Q1 | 8.61M | $112M | +$19.8M | $12.99 | 92 |
| 2020 Q4 | 7.78M | $26.1M | +$1.51M | $3.36 | 79 |
| 2020 Q3 | 7.27M | $28.8M | -$11.6M | $3.91 | 77 |
| 2020 Q2 | 9.28M | $49.2M | -$20.3M | $5.30 | 80 |
| 2020 Q1 | 14.3M | $58.9M | -$12.2M | $4.15 | 95 |
| 2019 Q4 | 14M | $170M | +$99.4M | $12.17 | 101 |
| 2019 Q3 | 5.66M | $88.5M | +$6.45M | $15.62 | 92 |
| 2019 Q2 | 5.29M | $77.4M | +$17.4M | $14.62 | 103 |
| 2019 Q1 | 3.9M | $88M | -$2.69M | $22.57 | 90 |
| 2018 Q4 | 5.41M | $64.3M | -$25.5M | $11.90 | 72 |
| 2018 Q3 | 6.66M | $124M | +$57.9M | $18.62 | 68 |
| 2018 Q2 | 3.52M | $98.6M | +$802K | $27.99 | 54 |
| 2018 Q1 | 4.45M | $40.1M | +$40.1M | $9.03 | 39 |
| 2016 Q2 | 0 | $0 | -$286K | 0 | |
| 2016 Q1 | 12.8K | $286K | $22.41 | 1 |