The Commonwealth Bank of Australia (CBA) has reported a change in its substantial holding in GTN Limited, with its voting power decreasing from 11.55% to 6.98%. The adjustment in CBA's interest reflects a reduction in the number of voting shares from 23,604,669 to 13,949,039. This shift represents a notable change in the bank's involvement with GTN Limited and is an important update for shareholders and market watchers.