The transactions cumulatively come to a total of N46 million.
Market capitalization similarly declined by 0.39% as DANGOTE recorded significant sell-offs in its share price.
The SEC said automation will enable a cost reduction and an increase in capital market efficiency.
NEIMETH and CUTIX were the top losers of the day with -10.00% and -9.84% declines.
The current CEO is scheduled to retire by December 31st, 2020.
A total turnover of 1.016 billion shares worth N7.436 billion in 18,092 deals was traded this week.
Market breadth index was slightly negative with 12 losers against 10 gainers.
Axxela recently raised the bond under its N50 billion Issuance Programme.
Investors gained N104.22 billion.
Goldman Sachs surged after it reported that its trading revenue doubled in the second quarter.