Yorktown Energy Partners VIII, L.P.
Follow13F filer, CIK 1473116, New York, NY
Yorktown Energy Partners VIII, L.P. filed a 13F-NT notice for the quarter ended 2025-12-31 on 2026-02-17.
Filed (acceptance time not in the bulk data set), ingested 13F-NT 0001140361-26-005801
This filer reports no holdings of its own for Q4 2025. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.
Changes against Q3 2025 are not shown: it was a notice, with the holdings in another manager's report (0 positions on file), so every position would read as new.
How Q4 2025 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-NT 0001140361-26-005801 | notice | 2026-02-17 | acceptance time not in the bulk data set |
Filings
Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.
| Filing | Subject | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-NT 0001140361-26-005801 | Quarter ended 2025-12-31 | 2026-02-17 | acceptance time not in the bulk data set | |
| 13F-NT 0001140361-25-042327 | Quarter ended 2025-09-30 | 2025-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001140361-25-031224 | Quarter ended 2025-06-30 | 2025-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-25-000291 | Quarter ended 2025-03-31 | 2025-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-25-000156 | Quarter ended 2024-12-31 | 2025-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-24-000621 | Quarter ended 2024-09-30 | 2024-11-13 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-24-000432 | Quarter ended 2024-06-30 | 2024-08-13 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-24-000363 | Quarter ended 2024-03-31 | 2024-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-24-000198 | Quarter ended 2023-12-31 | 2024-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-23-000641 | Quarter ended 2023-09-30 | 2023-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-23-000533 | Quarter ended 2023-06-30 | 2023-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-23-000386 | Quarter ended 2023-03-31 | 2023-05-12 | acceptance time not in the bulk data set | |
| 13F-HR 0001011438-23-000270 | Quarter ended 2022-12-31 | 2023-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001567619-22-020010 | Quarter ended 2022-09-30 | 2022-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-22-000852 | Quarter ended 2022-06-30 | 2022-08-11 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-22-000575 | Quarter ended 2022-03-31 | 2022-05-16 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-22-000233 | Quarter ended 2021-12-31 | 2022-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-21-001183 | Quarter ended 2021-09-30 | 2021-11-15 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-21-000917 | Quarter ended 2021-06-30 | 2021-08-16 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-21-000543 | Quarter ended 2021-03-31 | 2021-05-17 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-21-000203 | Quarter ended 2020-12-31 | 2021-02-16 | acceptance time not in the bulk data set | |
| 13F-HR 0000947871-20-000878 | Quarter ended 2020-09-30 | 2020-11-16 | acceptance time not in the bulk data set | |
| 13F-HR 0001567619-20-015430 | Quarter ended 2020-06-30 | 2020-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001567619-20-010461 | Quarter ended 2020-03-31 | 2020-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0001567619-20-004095 | Quarter ended 2019-12-31 | 2020-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0001140361-19-020597 | Quarter ended 2019-09-30 | 2019-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-19-008374 | Quarter ended 2019-06-30 | 2019-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-19-005479 | Quarter ended 2019-03-31 | 2019-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-19-002332 | Quarter ended 2018-12-31 | 2019-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-18-011895 | Quarter ended 2018-09-30 | 2018-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-18-008833 | Quarter ended 2018-06-30 | 2018-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-18-005469 | Quarter ended 2018-03-31 | 2018-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-18-002232 | Quarter ended 2017-12-31 | 2018-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-17-010763 | Quarter ended 2017-09-30 | 2017-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-17-007791 | Quarter ended 2017-06-30 | 2017-08-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-17-005356 | Quarter ended 2017-03-31 | 2017-05-15 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-17-002259 | Quarter ended 2016-12-31 | 2017-02-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-16-022314 | Quarter ended 2016-09-30 | 2016-11-14 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-16-020175 | Quarter ended 2016-06-30 | 2016-08-15 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-16-017493 | Quarter ended 2016-03-31 | 2016-05-16 | acceptance time not in the bulk data set | |
| 13F-HR 0000950123-16-015172 | Quarter ended 2015-12-31 | 2016-02-16 | acceptance time not in the bulk data set |