Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 76680V108 since 12/18/2024, largest first.
| Filer | % of Class | Filed | ||
|---|---|---|---|---|
|
Warburg Pincus & Co US, LLC
13D/A
|
15.1% |
2/27/2025
Event 2/24/2025
|
||
| Warburg Pincus & Company US, LLC. | 15.1% | |||
| Warburg Pincus Partners II (US), L.P. | 15.1% | |||
| Warburg Pincus (E&P) Energy LLC | 15.1% | |||
| Warburg Pincus (E&P) Energy GP, L.P. | 15.1% | |||
| Warburg Pincus Energy (E&P)-A, L.P. | 15.1% | |||
| WP Energy Stronghold Holdings, L.P. | 15.1% | |||
| WP Energy Partners Stronghold Holdings, L.P. | 15.1% | |||
| Warburg Pincus Energy (E&P) Partners-B, L.P. | 15.1% | |||
| Warburg Pincus Energy (E&P) Partners-A, L.P. | 15.1% | |||
| Warburg Pincus Energy (E&P) Partners-B Stronghold, LLC | 15.1% | |||
| Warburg Pincus (E&P) XII LLC | 15.1% | |||
| Warburg Pincus (E&P) XII, L.P. | 15.1% | |||
| Warburg Pincus XII (E&P) Partners-2, L.P. | 15.1% | |||
| Warburg Pincus XII (E&P) Partners-1, L.P.. | 15.1% | |||
| WP XII Stronghold Holdings, L.P. | 15.1% | |||
| WP XII (E&P) Partners (A), L.P. | 15.1% | |||
| WP XII (E&P) Partners (B), L.P. | 15.1% | |||
| Warburg Pincus Private Equity (E&P) XII-E (A), L.P. | 15.1% | |||
| Warburg Pincus Private Equity (E&P) XII-D (A), L.P. | 15.1% | |||
| Warburg Pincus Private Equity (E&P) XII (A), L.P. | 15.1% | |||
| Warburg Pincus XII (E&P) Partners-2 Stronghold, LLC | 15.1% | |||
| Warburg Pincus & Co. | 15.1% | |||
| Warburg Pincus LLC | 15.1% | |||
|
William R. Kruse
13G/A
|
7.0% |
2/23/2026
Event 12/31/2025
|
||
| William R. Kruse | 7.0% | |||
| Deborah L. Kruse | 6.6% | |||
|
PEAK6 Capital Management LLC
13G
|
6.6% |
8/14/2026
Event 6/30/2026
|
||
| PEAK6 Capital Management LLC | 6.6% | |||
| PEAK6 Partners LLC | 6.6% | |||
| PEAK6 LLC | 6.6% | |||
| PEAK6 Investments LLC | 6.6% | |||
| PEAK6 Group LLC | 6.6% | |||
| PEAK6 Capital Management Holdings LLC | 6.6% | |||
| Matthew Hulsizer | 6.6% | |||
| Jennifer Just | 6.6% | |||
|
PEAK6 LLC
13G
|
6.6% |
8/13/2026
Event 6/30/2026
|
||
| PEAK6 LLC | 6.6% | |||
| PEAK6 Capital Management LLC | 6.6% | |||
| PEAK6 Partners LLC | 6.6% | |||
| PEAK6 Investments LLC | 6.6% | |||
| PEAK6 Group LLC | 6.6% | |||
| PEAK6 Capital Management Holdings LLC | 6.6% | |||
| Matthew Hulsizer | 6.6% | |||
| Jennifer Just | 6.6% | |||
| Under 5%, checked the "5 percent or less" box, or amended by a later filing (3) | ||||
|
Warburg Pincus Partners II (US), L.P.
13G/A
|
2.7% |
8/12/2025
Event 6/30/2025
|
||
| Warburg Pincus & Company US, LLC | 2.7% | |||
| Warburg Pincus Partners II (US), L.P. | 2.7% | |||
| Warburg Pincus (E&P) Energy LLC | 2.7% | |||
| Warburg Pincus (E&P) Energy GP, L.P. | 2.7% | |||
| Warburg Pincus Energy (E&P)-A, L.P. | 2.7% | |||
| WP Energy Stronghold Holdings, L.P. | 2.7% | |||
| WP Energy Partners Stronghold Holdings, L.P. | 2.7% | |||
| Warburg Pincus Energy (E&P) Partners-B, L.P. | 2.7% | |||
| Warburg Pincus Energy (E&P) Partners-A, L.P. | 2.7% | |||
| Warburg Pincus Energy (E&P) Partners-B Stronghold, LLC | 2.7% | |||
| Warburg Pincus (E&P) XII LLC | 2.7% | |||
| Warburg Pincus (E&P) XII, L.P. | 2.7% | |||
| Warburg Pincus XII (E&P) Partners-2, L.P. | 2.7% | |||
| Warburg Pincus XII (E&P) Partners-1, L.P. | 2.7% | |||
| WP XII Stronghold Holdings, L.P. | 2.7% | |||
| WP XII (E&P) Partners (A), L.P. | 2.7% | |||
| WP XII (E&P) Partners (B), L.P. | 2.7% | |||
| Warburg Pincus Private Equity (E&P) XII-E (A), L.P. | 2.7% | |||
| Warburg Pincus Private Equity (E&P) XII-D (A), L.P. | 2.7% | |||
| Warburg Pincus Private Equity (E&P) XII (A), L.P. | 2.7% | |||
| Warburg Pincus XII (E&P) Partners-2 Stronghold, LLC | 2.7% | |||
| Warburg Pincus & Co. | 2.7% | |||
| Warburg Pincus LLC | 2.7% | |||
| BlackRock, Inc. 13G/A | 0.7% |
7/17/2025
Event 6/30/2025
|
||
| Vanguard Group Inc 13G/A | 0% |
3/27/2026
Event 3/13/2026
|
||
| Period | Filings | Shares, Excl. Options | Value, Excl. Options |
|---|---|---|---|
| 2026 Q3 | 16 | 594 k | $780 k |
| 2026 Q2 | 151 | 122 M | $135 M |
| 2026 Q1 | 132 | 78.4 M | $120 M |
| 2025 Q4 | 119 | 64.3 M | $55.9 M |
| 2025 Q3 | 123 | 59.7 M | $65.1 M |
| 2025 Q2 | 141 | 67.3 M | $53.4 M |
| 2025 Q1 | 152 | 90.8 M | $104 M |
| 2024 Q4 | 164 | 100 M | $136 M |
| 2024 Q3 | 167 | 106 M | $169 M |
| 2024 Q2 | 158 | 102 M | $172 M |
| 2024 Q1 | 154 | 97.6 M | $191 M |
| 2023 Q4 | 154 | 95.3 M | $139 M |
| 2023 Q3 | 157 | 94.7 M | $185 M |
| 2023 Q2 | 141 | 95.2 M | $163 M |
| 2023 Q1 | 143 | 92.6 M | $176 M |
| 2022 Q4 | 142 | 96.4 M | $237 M |
| 2022 Q3 | 132 | 93.8 M | $218 M |
| 2022 Q2 | 126 | 37.9 M | $101 M |
| 2022 Q1 | 128 | 27.9 M | $107 M |
| 2021 Q4 | 98 | 23.7 M | $54.1 M |
| 2021 Q3 | 99 | 23.8 M | $70.2 M |
| 2021 Q2 | 91 | 17.8 M | $52.9 M |
| 2021 Q1 | 82 | 16.1 M | $37.2 M |
| 2020 Q4 | 62 | 19.5 M | $12.9 M |
| 2020 Q3 | 62 | 18.4 M | $12.5 M |
| 2020 Q2 | 96 | 29.2 M | $33.8 M |
| 2020 Q1 | 100 | 40.9 M | $26.9 M |
| 2019 Q4 | 123 | 42.7 M | $113 M |
| 2019 Q3 | 109 | 42.8 M | $70.2 M |
| 2019 Q2 | 151 | 49.9 M | $162 M |
| 2019 Q1 | 152 | 54.7 M | $321 M |
| 2018 Q4 | 148 | 54.3 M | $277 M |
| 2018 Q3 | 165 | 58.1 M | $576 M |
| 2018 Q2 | 172 | 60.0 M | $787 M |
| 2018 Q1 | 170 | 55.2 M | $774 M |
| 2017 Q4 | 133 | 44.7 M | $621 M |
| 2017 Q3 | 119 | 45.8 M | $645 M |
| 2017 Q2 | 106 | 37.9 M | $493 M |
| 2017 Q1 | 99 | 32.4 M | $351 M |
| 2016 Q4 | 99 | 31.8 M | $413 M |
| 2016 Q3 | 88 | 25.4 M | $278 M |
| 2016 Q2 | 81 | 24.3 M | $214 M |
| 2016 Q1 | 70 | 16.1 M | $81.5 M |
| 2015 Q4 | 70 | 15.7 M | $111 M |
| 2015 Q3 | 69 | 15.5 M | $153 M |
| 2015 Q2 | 72 | 15.0 M | $168 M |
| 2015 Q1 | 58 | 11.0 M | $116 M |
| 2014 Q4 | 61 | 10.9 M | $115 M |
| 2014 Q3 | 66 | 9.90 M | $146 M |
| 2014 Q2 | 59 | 8.30 M | $140 M |
| 2014 Q1 | 39 | 5.38 M | $82.2 M |