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Middlefield Ventures, Inc.

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13F filer, CIK 1390251, Wilmington, DE

Middlefield Ventures, Inc. 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 0001390251-26-000009

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 0001390251-26-000009 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 0001390251-26-000009 Quarter ended 2026-06-302026-08-14acceptance time not in the bulk data set
13F-NT 0001390251-26-000007 Quarter ended 2026-03-312026-05-12acceptance time not in the bulk data set
13F-NT 0001390251-26-000005 Quarter ended 2025-12-312026-02-13acceptance time not in the bulk data set
13F-NT 0001390251-25-000020 Quarter ended 2025-09-302025-10-28acceptance time not in the bulk data set
13F-NT 0001390251-25-000012 Quarter ended 2025-06-302025-08-12acceptance time not in the bulk data set
13F-NT 0001390251-25-000010 Quarter ended 2025-03-312025-05-13acceptance time not in the bulk data set
13F-NT 0001390251-25-000004 Quarter ended 2024-12-312025-02-13acceptance time not in the bulk data set
13F-NT 0001390251-24-000019 Quarter ended 2024-09-302024-11-12acceptance time not in the bulk data set
13F-NT 0001390251-24-000012 Quarter ended 2024-06-302024-08-13acceptance time not in the bulk data set
13F-NT 0001390251-24-000009 Quarter ended 2024-03-312024-05-13acceptance time not in the bulk data set
13F-NT 0001390251-24-000004 Quarter ended 2023-12-312024-02-09acceptance time not in the bulk data set
13F-NT 0001390251-23-000003 Quarter ended 2023-09-302023-11-08acceptance time not in the bulk data set
13F-NT 0000950123-23-006387 Quarter ended 2023-06-302023-07-28acceptance time not in the bulk data set
13F-NT 0000950123-23-003854 Quarter ended 2023-03-312023-05-05acceptance time not in the bulk data set
13F-NT 0000950123-23-001457 Quarter ended 2022-12-312023-02-10acceptance time not in the bulk data set
13F-NT 0000950123-22-011360 Quarter ended 2022-09-302022-11-10acceptance time not in the bulk data set
13F-NT 0000950123-22-008993 Quarter ended 2022-06-302022-08-15acceptance time not in the bulk data set
13F-NT 0000950123-22-005729 Quarter ended 2022-03-312022-05-13acceptance time not in the bulk data set
13F-NT 0000950123-22-001273 Quarter ended 2021-12-312022-02-08acceptance time not in the bulk data set
13F-NT 0000950123-21-014156 Quarter ended 2021-09-302021-11-08acceptance time not in the bulk data set
13F-NT 0000950123-19-010239 Quarter ended 2019-09-302019-11-07acceptance time not in the bulk data set
13F-NT 0000950123-19-007134 Quarter ended 2019-06-302019-08-07acceptance time not in the bulk data set
13F-NT 0000950123-19-004032 Quarter ended 2019-03-312019-05-08acceptance time not in the bulk data set
13F-NT 0000950123-19-000778 Quarter ended 2018-12-312019-02-07acceptance time not in the bulk data set
13F-NT 0000950123-18-010852 Quarter ended 2018-09-302018-11-09acceptance time not in the bulk data set
13F-NT 0000950123-18-007468 Quarter ended 2018-06-302018-08-07acceptance time not in the bulk data set
13F-NT 0000950123-18-004133 Quarter ended 2018-03-312018-05-04acceptance time not in the bulk data set
13F-NT 0001140361-14-041233 Quarter ended 2014-09-302014-11-12acceptance time not in the bulk data set
13F-NT 0001140361-14-005841 Quarter ended 2013-12-312014-02-11acceptance time not in the bulk data set
13F-NT 0001140361-13-041284 Quarter ended 2013-09-302013-11-08acceptance time not in the bulk data set