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YORKTOWN IX CO LP

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13F filer, CIK 1689134, NEW YORK, NY

YORKTOWN IX CO LP filed a 13F-NT notice for the quarter ended 2026-06-30 on 2026-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-NT 0001140361-26-033066

This filer reports no holdings of its own for Q2 2026. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.

Changes against Q1 2026 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 Q2 2026 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).

FilingRoleAmendmentFiledAcceptedIngested
13F-NT 0001140361-26-033066 notice2026-08-14acceptance 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.

FilingSubjectFiledAcceptedIngested
13F-NT 0001140361-26-033066 Quarter ended 2026-06-302026-08-14acceptance time not in the bulk data set
13F-NT 0001140361-26-021713 Quarter ended 2026-03-312026-05-15acceptance time not in the bulk data set
13F-NT 0001140361-26-005794 Quarter ended 2025-12-312026-02-17acceptance time not in the bulk data set
13F-NT 0001140361-25-042323 Quarter ended 2025-09-302025-11-14acceptance time not in the bulk data set
13F-NT 0001140361-25-031281 Quarter ended 2025-06-302025-08-14acceptance time not in the bulk data set
13F-NT 0001011438-25-000296 Quarter ended 2025-03-312025-05-15acceptance time not in the bulk data set
13F-NT 0001011438-25-000161 Quarter ended 2024-12-312025-02-14acceptance time not in the bulk data set
13F-NT 0001011438-24-000626 Quarter ended 2024-09-302024-11-13acceptance time not in the bulk data set
13F-NT 0001011438-24-000437 Quarter ended 2024-06-302024-08-13acceptance time not in the bulk data set
13F-NT 0001011438-24-000374 Quarter ended 2024-03-312024-05-15acceptance time not in the bulk data set
13F-NT 0001011438-24-000203 Quarter ended 2023-12-312024-02-14acceptance time not in the bulk data set
13F-NT 0001011438-23-000633 Quarter ended 2023-09-302023-11-14acceptance time not in the bulk data set
13F-NT 0001011438-23-000538 Quarter ended 2023-06-302023-08-14acceptance time not in the bulk data set
13F-NT 0001011438-23-000391 Quarter ended 2023-03-312023-05-12acceptance time not in the bulk data set
13F-NT 0001011438-23-000269 Quarter ended 2022-12-312023-02-14acceptance time not in the bulk data set
13F-NT 0001567619-22-020032 Quarter ended 2022-09-302022-11-14acceptance time not in the bulk data set
13F-NT 0000947871-22-000862 Quarter ended 2022-06-302022-08-11acceptance time not in the bulk data set
13F-NT 0000947871-22-000585 Quarter ended 2022-03-312022-05-16acceptance time not in the bulk data set
13F-NT 0000947871-22-000245 Quarter ended 2021-12-312022-02-14acceptance time not in the bulk data set
13F-NT 0000947871-21-001196 Quarter ended 2021-09-302021-11-15acceptance time not in the bulk data set
13F-NT 0000947871-21-000933 Quarter ended 2021-06-302021-08-16acceptance time not in the bulk data set
13F-NT 0000947871-21-000554 Quarter ended 2021-03-312021-05-17acceptance time not in the bulk data set
13F-NT 0000947871-21-000216 Quarter ended 2020-12-312021-02-16acceptance time not in the bulk data set
13F-NT 0000947871-20-000888 Quarter ended 2020-09-302020-11-16acceptance time not in the bulk data set
13F-NT 0001567619-20-015414 Quarter ended 2020-06-302020-08-14acceptance time not in the bulk data set
13F-NT 0001567619-20-010484 Quarter ended 2020-03-312020-05-15acceptance time not in the bulk data set
13F-NT 0001567619-20-004086 Quarter ended 2019-12-312020-02-14acceptance time not in the bulk data set
13F-NT 0001140361-19-020601 Quarter ended 2019-09-302019-11-14acceptance time not in the bulk data set
13F-NT 0000950123-19-008425 Quarter ended 2019-06-302019-08-14acceptance time not in the bulk data set
13F-NT 0000950123-19-005507 Quarter ended 2019-03-312019-05-15acceptance time not in the bulk data set
13F-NT 0000950123-19-002307 Quarter ended 2018-12-312019-02-14acceptance time not in the bulk data set
13F-NT 0000950123-18-011949 Quarter ended 2018-09-302018-11-14acceptance time not in the bulk data set
13F-NT 0000950123-18-008827 Quarter ended 2018-06-302018-08-14acceptance time not in the bulk data set
13F-NT 0000950123-18-005439 Quarter ended 2018-03-312018-05-15acceptance time not in the bulk data set
13F-NT 0000950123-18-002217 Quarter ended 2017-12-312018-02-14acceptance time not in the bulk data set
13F-NT 0000950123-17-010769 Quarter ended 2017-09-302017-11-14acceptance time not in the bulk data set
13F-NT 0000950123-17-007836 Quarter ended 2017-06-302017-08-14acceptance time not in the bulk data set
13F-NT 0000950123-17-005346 Quarter ended 2017-03-312017-05-15acceptance time not in the bulk data set
13F-NT 0000950123-17-002267 Quarter ended 2016-12-312017-02-14acceptance time not in the bulk data set