Trgovanje na podlagi notranjih informacij je opredeljeno kot dejavnost katere koli osebe, ki ima zaradi svoje zaposlitve, stroke ali dolžnosti dostop do nekaterih posebnih informacij, ki bi lahko bile pomembne za posle denarne politike, devizne posle z deviznimi rezervami ECB in upravljanje deviznih rezerv ECB, preden postanejo javne, pri čemer s popolnim poznavanjem dejstev izkoristi takšno informacijo s pridobivanjem ali razpolaganjem za svoj lasten račun ali za račun tretje osebe, bodisi neposredno bodisi posredno, s premoženjem (vključno s prenosljivimi vrednostnimi papirji) ali pravicami (vključno s pravicami na podlagi pogodb na izvedene finančne instrumente), s katerimi so te informacije tesno povezane.
Insider trading is defined as the activity of any person who, by virtue of his or her employment, profession or duties, has access to certain information of a precise nature that could be relevant to monetary policy operations, foreign exchange operations with the ECB's foreign reserves and the management of the ECB's foreign reserve assets before it becomes public and takes advantage of that information with full knowledge of the facts by acquiring or disposing of, either for his or her own account or for the account of a third party, either directly or indirectly, assets (including transferable securities) or rights (including rights under derivatives contracts) to which that information is closely related.