Financial reports
10-K
2023 FY
Annual report
28 Feb 24
10-Q
2023 Q3
Quarterly report
25 Oct 23
10-Q
2023 Q2
Quarterly report
27 Jul 23
10-Q
2023 Q1
Quarterly report
26 Apr 23
ARS
2022 FY
Annual report to shareholders
5 Apr 23
10-K
2022 FY
Annual report
23 Feb 23
10-Q
2022 Q3
Quarterly report
26 Oct 22
10-Q
2022 Q2
Quarterly report
27 Jul 22
10-Q
2022 Q1
Quarterly report
27 Apr 22
10-K
2021 FY
Annual report
24 Feb 22
Current reports
8-K
Termination of a Material Definitive Agreement
22 Mar 24
8-K
Regulation FD Disclosure
18 Mar 24
8-K
Results of Operations and Financial Condition
26 Feb 24
8-K
Other Events
27 Dec 23
8-K
Entry into a Material Definitive Agreement
6 Dec 23
8-K
Entry into a Material Definitive Agreement
1 Dec 23
8-K
Helix Announces Pricing of Senior Notes Offering
17 Nov 23
8-K
Helix Announces Proposed Offering of New Senior Notes
15 Nov 23
8-K
Results of Operations and Financial Condition
23 Oct 23
8-K
Departure of Directors or Certain Officers
20 Sep 23
Registration and prospectus
S-3ASR
Automatic shelf registration
28 Oct 22
S-8
Registration of securities for employees
14 Jan 22
424B5
Prospectus supplement for primary offering
13 Aug 20
FWP
Free writing prospectus
12 Aug 20
424B5
Prospectus supplement for primary offering
11 Aug 20
8-A12B/A
Registration of securities on exchange (amended)
25 Oct 19
S-3ASR
Automatic shelf registration
25 Oct 19
SC TO-I/A
Issuer tender offer statement (amended)
16 Mar 18
424B5
Prospectus supplement for primary offering
15 Mar 18
FWP
Free writing prospectus
14 Mar 18
Proxies
DEFA14A
Additional proxy soliciting materials
5 Apr 23
DEF 14A
Definitive proxy
5 Apr 23
DEFA14A
Additional proxy soliciting materials
6 Apr 22
DEF 14A
Definitive proxy
6 Apr 22
DEFA14A
Additional proxy soliciting materials
6 Apr 21
DEF 14A
Definitive proxy
6 Apr 21
DEFA14A
Additional proxy soliciting materials
4 May 20
DEFA14A
Additional proxy soliciting materials
7 Apr 20
DEF 14A
Definitive proxy
7 Apr 20
DEFA14A
Additional proxy soliciting materials
2 Apr 19
Other
EFFECT
Notice of effectiveness
18 Apr 16
UPLOAD
Letter from SEC
31 Oct 13
CORRESP
Correspondence with SEC
4 Oct 13
UPLOAD
Letter from SEC
25 Sep 13
UPLOAD
Letter from SEC
1 Feb 11
CORRESP
Correspondence with SEC
13 Dec 10
UPLOAD
Letter from SEC
30 Nov 10
UPLOAD
Letter from SEC
24 Dec 09
CORRESP
Correspondence with SEC
10 Dec 09
UPLOAD
Letter from SEC
2 Dec 09
Ownership
4
Kenneth English Neikirk
8 Mar 24
4
Erik Staffeldt
8 Mar 24
4
Scott Andrew Sparks
8 Mar 24
4
OWEN E KRATZ
8 Mar 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
SC 13G/A
DIMENSIONAL FUND ADVISORS LP
9 Feb 24
SC 13G/A
BlackRock Inc.
19 Jan 24
4
Brent Alexander Arriaga
5 Jan 24
4
Kenneth English Neikirk
5 Jan 24
4
Erik Staffeldt
5 Jan 24