| SC 13D | 2024-03-15 | - | - | - | - | EDGAR |
| SC 13G/A | 2024-02-12 | - | - | - | - | EDGAR |
| SC 13G/A | 2023-02-10 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 3,118,800 | 6.6% | EDGAR |
| SC 13G/A | 2022-02-11 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 3,257,060 | 7.2% | EDGAR |
| SC 13G/A | 2021-02-12 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 3,060,834 | 7.0% | EDGAR |
| SC 13G/A | 2020-02-13 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 3,112,549 | 7.3% | EDGAR |
| SC 13G/A | 2019-02-13 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 3,270,077 | 7.7% | EDGAR |
| SC 13G/A | 2018-02-13 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 4,702,105 | 11.5% | EDGAR |
| SC 13G/A | 2017-02-13 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 4,573,116 | 11.5% | EDGAR |
| SC 13G/A | 2016-02-11 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 4,827,387 | 12.9% | EDGAR |
| SC 13G/A | 2015-02-17 | MORGAN STANLEY | TEKLA HEALTHCARE INVESTORS | 4,263,560 | 11.9% | EDGAR |
| SC 13G/A | 2015-01-12 | FIRST TRUST PORTFOLIOS LP | TEKLA HEALTHCARE INVESTORS | 1,301,798 | 3.6% | EDGAR |
| SC 13G/A | 2014-04-09 | MORGAN STANLEY | H&Q HEALTHCARE INVESTORS | 2,889,311 | 10.3% | EDGAR |
| SC 13G/A | 2014-02-10 | MORGAN STANLEY | H&Q HEALTHCARE INVESTORS | 2,654,966 | 9.6% | EDGAR |
| SC 13G/A | 2014-01-13 | FIRST TRUST PORTFOLIOS LP | H&Q HEALTHCARE INVESTORS | 2,331,039 | 8.4% | EDGAR |
| SC 13G/A | 2013-07-10 | FIRST TRUST PORTFOLIOS LP | H&Q HEALTHCARE INVESTORS | 2,735,349 | 10.1% | EDGAR |
| SC 13G/A | 2013-02-14 | MORGAN STANLEY | H&Q HEALTHCARE INVESTORS | 2,454,346 | 9.2% | EDGAR |
| SC 13G | 2013-02-04 | FIRST TRUST PORTFOLIOS LP | H&Q HEALTHCARE INVESTORS | 1,996,575 | 7.5% | EDGAR |
| SC 13G | 2012-02-10 | MORGAN STANLEY | H&Q HEALTHCARE INVESTORS | 1,825,538 | 7.0% | EDGAR |
| SC 13G/A | 2005-05-16 | SNOW CAPITAL MANAGEMENT LP | H&Q HEALTHCARE INVESTORS | 830,235 | 4.0% | EDGAR |