| Filed On | Filing |
|---|---|
| 13 Feb 2024 | SCHEDULE 13G |
| 30 Jan 2024 | SC 13G |
| 09 Feb 2022 | SC 13G |
| 09 Feb 2021 | SC 13G |
| 04 Feb 2021 | SC 13G |
| 14 Feb 2019 | SC 13G |
| 09 Feb 2017 | SCHEDULE 13G |
| 08 Feb 2017 | ADAGE CAPITAL PARTNERS GP, L.L.C. |
| 01 Feb 2016 | SC 13G |
| 29 Jan 2015 | SC 13G |
| 12 Feb 2013 | SC 13G |
| 08 Feb 2013 | SCHEDULE 13G |
| 10 Jan 2012 | SC 13G |
| 03 Feb 2011 | SC 13G |
| 09 Feb 2010 | SC 13G |
| 29 Jan 2010 | SC 13G |
| 05 Feb 2009 | SC 13G |
| 14 Feb 2008 | SCHEDULE 13G (02-14-08) |
| 13 Feb 2008 | COLUMBUS MCKINNON |
| 31 Jan 2008 | SC 13G |
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