The three departing executives are chief people officer Nicola Simpson, marketing director Jonathan Symons and chief transformation officer Cate Calver.
The Herald’s Media Insider column earlier revealed that Calver - a possible candidate to succeed Power - had jumped ship for Great Southern Television, where she will take the CEO role in the New Year.
Last week, TVNZ reported a plunge in net profit from $7.92 million to $1.72m for the year to June 30.
The period saw revenue down year-on-year from $341.69m to $327.63m as the ad market slackened, and short-lived PM Chris Hipkins threw the proposed merger with RNZ on his policy bonfire.
No dividend was paid to the Government. TVNZ last paid a dividend following the 2020-21 financial year, when it reported a $59.2m net profit.