| Date Filed | Type | Description |
| 11/06/2020 |
SC 13E3/A
| Form SC 13E3/A - Going private transaction by certain issuers: [Amend] |
| 10/29/2020 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments: |
| 10/29/2020 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments: |
| 10/27/2020 |
15-12G
| Form 15-12G - Securities registration termination [Section 12(g)]: |
| 10/22/2020 |
8-K
| Submission of Matters to a Vote of Security Holders |
| 09/29/2020 |
SC 13E3/A
| Form SC 13E3/A - Going private transaction by certain issuers: [Amend] |
| 09/29/2020 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 09/10/2020 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 09/08/2020 |
PRER14A
| Form PRER14A - Preliminary Proxy Soliciting materials: |
| 09/08/2020 |
SC 13E3/A
| Form SC 13E3/A - Going private transaction by certain issuers: [Amend] |
| 08/25/2020 |
8-K
| Quarterly results |
| 08/18/2020 |
8-K
| Quarterly results |
| 08/17/2020 |
8-K
| Quarterly results |
| 08/17/2020 |
PRER14A
| Form PRER14A - Preliminary Proxy Soliciting materials: |
| 08/17/2020 |
SC 13E3/A
| Form SC 13E3/A - Going private transaction by certain issuers: [Amend] |
| 08/14/2020 |
10-Q
| Quarterly Report for the period ended June 30, 2020 |
| 07/16/2020 |
8-K
| Quarterly results |
| 07/16/2020 |
SC 13E3
| Form SC 13E3 - Going private transaction by certain issuers: |
| 07/16/2020 |
PRE 14A
| Form PRE 14A - Other preliminary proxy statements: |
| 06/17/2020 |
8-K
| Quarterly results |
| 05/29/2020 |
8-K
| Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Completion of Acquisition or Disp... |
| 05/14/2020 |
10-Q
| Quarterly Report for the period ended March 31, 2020 |
| 05/06/2020 |
8-K
| Quarterly results |
| 05/04/2020 |
DEF 14C
| Form DEF 14C - Other definitive information statements: |
| 04/29/2020 |
DEF 14C
| Form DEF 14C - Other definitive information statements: |
| 04/22/2020 |
PRE 14C
| Form PRE 14C - Other preliminary information statements: |
| 04/08/2020 |
8-K
| Entry into a Material Definitive Agreement, Submission of Matters to a Vote of Security Holders, Other Events, Financial Stat... |
| 03/30/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/21/2020 |
8-K
| Quarterly results |
| 02/12/2020 |
SC 13G/A
| AWM Investment Company, Inc. reports a 11.7% stake in Carbon Natural Gas Company |
| 12/17/2019 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 11/13/2019 |
10-Q
| Quarterly Report for the period ended September 30, 2019 |
| 09/12/2019 |
RW
| Form RW - Registration Withdrawal Request: |
| 09/04/2019 |
8-K
| Entry into a Material Definitive Agreement, Departure of Directors or Certain Officers; Election of Directors; Appointment of... |
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