640 filings
Page 8 of 32
424B5
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13 Mar 18
Prospectus supplement for primary offering
12:00am
8-K
fcbdr yzoto29v
2 Mar 18
Regulation FD Disclosure
12:00am
8-K
e7nje
20 Feb 18
Helix Reports Fourth Quarter 2017 Results
12:00am
SC TO-I
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14 Feb 18
Issuer tender offer statement
12:00am
8-K
o08icj
8 Dec 17
Departure of Directors or Certain Officers
12:00am
8-K
0wqvg07qb5fhh 0do
20 Nov 17
Entry into a Material Definitive Agreement
12:00am
8-K
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23 Oct 17
Helix Reports Third Quarter 2017 Results
12:00am
8-K
27b2m9t tjokw7
24 Jul 17
Helix Reports Second Quarter 2017 Results
12:00am
8-K
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30 Jun 17
Helix Announces $250 Million Credit Facility
12:00am
8-K
7jk94g0sl z5y
6 Jun 17
Helix Announces Executive Management Team Succession
12:00am
8-K
7c4 jsb75
12 May 17
Submission of Matters to a Vote of Security Holders
12:00am
8-K
5zehngq5q
24 Apr 17
Helix Reports First Quarter 2017 Results
12:00am
DEFA14A
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28 Mar 17
Additional proxy soliciting materials
12:00am
8-K
8xa 64lgn
3 Mar 17
Regulation FD Disclosure
12:00am