I edited and added the comma. Sorry. Current result is
EffectiveDateHolderHQuantityTQuantityPercentage
2001-01-01John 10 10 100
2001-01-02John 10 20 50
2001-01-02Peter 10 20 50
2001-01-03John 5 15 33
2001-01-03Peter 10 15 66
2001-01-04Peter 10 10 100