Ludba,
If you read the announcement, he sold two lots in April.
1,000,000 plus the most recent 5,784,923.
16,000,000
-6,784,923
Bal = 9,215,077 Held
Therefore he still holds nearly 60% of his stake since he first started buying in November.
Like all of us, he likes to book a profit without completely selling out.
Cheers markco2