| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Feb 8, 2021 | |
| SC 13G | Report | Feb 5, 2020 | ||
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Jan 22, 2020 | |
| SC 13G/A | Report | NONE | Feb 13, 2019 | |
| SC 13G | Report | SCHEDULE 13G | Jan 30, 2019 | |
| SC 13G/A | Report | Jan 18, 2019 | ||
| SC 13G/A | Report | NONE | Feb 13, 2018 | |
| SC 13G | Report | Feb 6, 2018 | ||
| SC 13G/A | Report | NONE | Feb 14, 2017 | |
| 8-K | Report | 8-K | Oct 28, 2016 | Oct 28, 2016 |
| SC 13G/A | Report | NONE | Feb 16, 2016 | |
| SC 13G/A | Report | NONE | May 11, 2015 | |
| SC 13G/A | Report | NONE | Feb 13, 2015 | |
| SC 13G/A | Report | AMENDED SCHEDULE 13G | Jan 8, 2015 | |
| SC 13G/A | Report | NONE | Nov 10, 2014 | |
| SC 13G/A | Report | NONE | Feb 14, 2014 | |
| SC 13G | Report | SCHEDULE 13G | Jan 7, 2014 | |
| SC 13G/A | Report | NONE | Dec 11, 2013 | |
| SC 13G/A | Report | BLACKROCK HEALTH SCIENCES TRUST 13G/A4 | Feb 14, 2013 | |
| SC 13G/A | Report | BLACKROCK HEALTH SCIENCES TRUST 13GA3 | Feb 14, 2012 | |
| SC 13G/A | Report | BLACKROCK HEALTH SCIENCES TRUST 13GA2 | Feb 14, 2011 | |
| 8-K | Report | Feb 4, 2011 | Feb 4, 2011 | |
| 8-K | Report | BLACKROCK HEALTH SCIENCES TRUST | Oct 29, 2010 | Oct 25, 2010 |
| SC 13G/A | Report | BLACKROCK HEALTH SCIENCES TRUST 13GA1 | Feb 1, 2010 |