At the 'top' of climb, the AoA decreases, (6?), and there are STALL wrns.
Stall warnings started 15 seconds before the top of the climb, at 0210:51, when Alpha reached 6° (BEA).
0210:05 = 0210:05 => 275 kt; FL350; Alpha was about 3° (estim.)
0210:16 < 0210:50 => 215 kt; FL375; Alpha was about 4° (BEA)
0210:51 = 0210:51 => Stall Warnings; Alpha was about 6° (BEA)
0211:06 ~ 0211:06 => 185 kt; FL380; Alpha was about 16° (BEA)
During those 15 seconds at the beginning of the stall warning sequence (stall warning only stopped 35+ seconds later, after 0211:40)... the AOA increased by 10°.