Inspectors General Transparency Act of 2015

Amends the Inspector General Act of 1978 to require an Inspector General who issues a work product in carrying out his or her duties and responsibilities to submit such work product to: (1) the head of each establishment reviewed in the work product, (2) the House Committees on Appropriations and Oversight and Government Reform and the Senate Committees on Appropriations and Homeland Security and Governmental Affairs; (3) the congressional committees of jurisdiction, (4) any individual or entity who initiated a request for such work product, and (5) any Member of Congress, upon request. Requires the posting of such work product on the website of the Office of Inspector General not later than three days after such work product is submitted in final form to the head of the establishment.