Invesco Unit Trusts Taxable Income Series 640

CIK 1686060 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Invesco Unit Trusts Taxable Income Series 640.

Recent SEC filings

FiledFormAccession number
Dec 29, 2025497J0001528621-25-001381
Dec 22, 2025485BPOS0001528621-25-001349
Sep 24, 202524F-2NT0001528621-25-000992
Dec 26, 2024497J0001528621-24-001417
Dec 20, 2024485BPOS0001528621-24-001387
Sep 25, 202424F-2NT0001528621-24-001007
Dec 28, 2023497J0001528621-23-001813
Dec 22, 2023485BPOS0001528621-23-001785
Sep 25, 202324F-2NT0001528621-23-001385
Sep 26, 2022497J0001528621-22-001453
Sep 23, 20224870001528621-22-001452
Aug 2, 2022S-60001528621-22-001193