A direct manual trade of 700,000 shares of AIA (01299) was registered at 9:44a.m.
The deal amounted to HK$39.5m, or at HK$56.425 per share, 3.3% lower than previous close.
AIA is now trading down 3.26% to HK$56.45, with 14.86 million shares of HK$838.48m changing hands.