Question 1

Does Magnetar Financial own RBLX stock?

Accepted Answer

No. Magnetar Financial exited its RBLX (Roblox) position in Q1 2026. Its Q4 2025 13F listed 8,324 shares worth $674,494.

Question 2

How many shares of RBLX does Magnetar Financial own?

Accepted Answer

None since Q1 2026, when Magnetar Financial exited the position. Its Q4 2025 13F listed 8,324 shares worth $674,494.

Question 3

What is Magnetar Financial's RBLX position worth?

Accepted Answer

Magnetar Financial's RBLX position was worth $674,494 in its Q4 2025 13F, before the exit in Q1 2026.

Question 4

Is Magnetar Financial buying or selling RBLX?

Accepted Answer

In Q1 2026, Magnetar Financial exited its entire RBLX position.

Question 5

When did Magnetar Financial first buy RBLX?

Accepted Answer

Magnetar Financial already held RBLX in its Q1 2021 13F, the earliest on record, and listed it in 8 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Exited	0	-100.0%	$0	0.0%	$56.56	0
2025-Q4	Decreased	8,324	-60.3%	$674,494	0.0%	$81.03	0
2025-Q3	Increased	20,943	+859.4%	$2.9M	0.0%	$138.52	42
2025-Q2	New	2,183	—	$229,652	0.0%	$105.20	32