round 1: 3 leetcode med (10/15, 12/15, 8/15), round 2: 3 hard probability/math mc that you were recorded while completing round 3: implement a python class that had methods that could insert values and efficiently calculated mean, mode, etc. Did well but did not make it to final round

OA with medium/hard Leetcode questions, 1 way interview with 3 brain teasers and 5 minutes to explain solutions to each, Second round with developer doing code pair and development technical questions, Final round with quant on trading, game theory, statistics etc. Akuna was very quick with their feedback following interviews.