Walleye Trading’s FirstMark Horizon Acquisition Corp. Units, each consisting of one share of Class A common stock and FMAC.U Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2021 Q1	–	Sell	-74,681	Closed	-$851K	–	2521
2020 Q4	$851K	Buy	+74,681	New	+$851K	﹤0.01%	452