71 results
Page 3 of 4
8-K
EX-99.2
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29 Feb 08
Helix Reports Fourth Quarter Results and 2008 Outlook
12:00am
8-K
EX-10.1
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8 Feb 08
Helix Announces Resignation of Ceo
12:00am
425
EX-2.1
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26 Jan 06
Business combination disclosure
12:00am
425
EX-2.1
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25 Jan 06
Business combination disclosure
12:00am
8-K/A
EX-2.1
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25 Jan 06
Entry into a Material Definitive Agreement
12:00am
424B3
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22 Sep 00
Prospectus supplement
12:00am
424B3
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31 Aug 00
Prospectus supplement
12:00am