Looks like to me it's KBC, it has been a seller since March last...

Looks like to me it's KBC, it has been a seller since March last year which coincides with the falling KBC share price, which has also been in decline since March 2022.
KBC hit a yearly low last month and its share price is close to it now, looks like they may be having some problems with this falling market.
They held as much as 129 million MEL shares early last year and in their last announcement they declared they have sold down to 98 million shares.
Hopefully they will be taken out soon, as it's putting pressure on MEL's share-price.