| Filed On | Filing |
|---|---|
| 14 Mar 2023 | PRE 14A |
| 23 Feb 2017 | PRE 14A |
| 28 Feb 2014 | PRELIMINARY PROXY STATEMENT |
| 17 Mar 2009 | STERLING CONSTRUCTION COMPANY PRE14A 3-17-09 |
| 18 Mar 2008 | STERLING CONSTRUCTION PRE 14A 3-17-2008 |
| 31 Aug 2001 | PRELIMINARY PROXY STATEMENT |
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