Sources of funding are listed publicly at www.lavoce.info/chi-ci-finanzia/.
There is a partial overview of spending, with a limited amount of detail, on the same page; further detail is provided at http://www.lavoce.info/sostieni-la-voce/come-spendiamo-i-vostri-soldi/, although not as strict accounting but more as a general description.
The form in which the organization is registered (associazione, i.e., association) is stated at www.lavoce.info/chi-ci-finanzia/.
There is no public statement of ownership, which is instead recommended by the criteria for fact-checking sections of media houses.
4a marked as Partially compliant by Paolo Attivissimo.