ADA-ES INC Form DEFA14A: Additional definitive proxy soliciting materials
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2013-03-25: Form DEFA14A; Description FORM 8-K; Document d505999d8k.htm.
- 2012-03-16: Form DEFA14A; Description FORM 8-K; Document d307954d8k.htm.
- 2011-03-14: Form DEFA14A; Description FORM 8-K; Document d8k.htm.
- 2009-05-08: Form DEFA14A; Description NOTICE & PROXY ADDITIONAL MATERIALS; Document ddefa14a.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2013-03-25 | DEFA14A | FORM 8-K | d505999d8k.htm | |
| 2012-03-16 | DEFA14A | FORM 8-K | d307954d8k.htm | |
| 2011-03-14 | DEFA14A | FORM 8-K | d8k.htm | |
| 2009-05-08 | DEFA14A | NOTICE & PROXY ADDITIONAL MATERIALS | ddefa14a.htm | |
| 2006-04-19 | DEFA14A | AMENDED DEFINITIVE PROXY | adaproxyamendment.txt |