Financial reports
Current reports
8-K
Hammerhead Resources Completes Business Combination with Decarbonization Plus Acquisition Corporation IV to Form Hammerhead Energy
27 Feb 23
8-K
Decarbonization Plus Acquisition Corporation IV Reopens Redemption Period and Reminds Shareholders How to Withdraw Prior Redemption Requests
30 Jan 23
8-K
Material Modifications to Rights of Security Holders
24 Jan 23
8-K
Regulation FD Disclosure
18 Jan 23
8-K
Other Events
17 Jan 23
8-K
Expanded Credit Facility, Operational Update and Business Combination Update
17 Jan 23
8-K
Other Events
3 Jan 23
8-K
Hammerhead Resources Inc. and Decarbonization Plus Acquisition Corporation IV Announce
26 Sep 22
8-K
Departure of Directors or Certain Officers
15 Mar 22
8-K
Other Events
1 Oct 21
Registration and prospectus
15-12G
Securities registration termination
8 Mar 23
25-NSE
Exchange delisting
24 Feb 23
425
Business combination disclosure
30 Jan 23
425
Business combination disclosure
30 Jan 23
425
Business combination disclosure
30 Jan 23
425
Business combination disclosure
18 Jan 23
425
Business combination disclosure
18 Jan 23
425
Business combination disclosure
18 Jan 23
425
Business combination disclosure
17 Jan 23
425
Business combination disclosure
17 Jan 23
Other
EFFECT
Notice of effectiveness
11 Aug 21
CERT
Certification of approval for exchange listing
10 Aug 21
CORRESP
Correspondence with SEC
6 Aug 21
CORRESP
Correspondence with SEC
6 Aug 21
CORRESP
Correspondence with SEC
20 Jul 21
CORRESP
Correspondence with SEC
16 Jul 21
CORRESP
Correspondence with SEC
16 Jul 21
CORRESP
Correspondence with SEC
14 Jul 21
CORRESP
Correspondence with SEC
13 Jul 21
CORRESP
Correspondence with SEC
13 Jul 21
Ownership
4
Jane Kearns
22 Feb 23
4
Jeffrey Tepper
22 Feb 23
4
James AC McDermott
22 Feb 23
4
Jennifer Aaker
22 Feb 23
4
DAVID M LEUSCHEN
22 Feb 23
SC 13G
Shaolin Capital Management LLC
14 Feb 23
SC 13G/A
CITADEL ADVISORS LLC
14 Feb 23
SC 13G/A
ADAGE CAPITAL PARTNERS GP, L.L.C.
9 Feb 23
4
Jennifer Aaker
18 Jan 23
4
James AC McDermott
18 Jan 23