FirstMark Horizon Acquisition Corp.

Magnetar Financial LLC

Report date

9/30/2021

Quarter

2021 Q3

Filed

1/14/2022

Shares

605,896

Value ($000)

6,195

Weight

0.1%

2020 Q4 - 2021 Q3 (4 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2021 Q3	1/14/2022	6,195	0.1%	605,896	9/30/2021
2021 Q2	8/6/2021	6,313	0.1%	605,896	6/30/2021
2021 Q1	5/14/2021	6,374	0.1%	605,896	3/31/2021
2020 Q4	2/12/2021	9,088	0.1%	797,200	12/31/2020