Question 1

Does Jane Street Group own MTEK stock?

Accepted Answer

No. Jane Street Group exited its MTEK (Maris-Tech) position in Q1 2026. Its Q4 2025 13F listed 10,388 shares worth $12,050.

Question 2

How many shares of MTEK does Jane Street Group own?

Accepted Answer

None since Q1 2026, when Jane Street Group exited the position. Its Q4 2025 13F listed 10,388 shares worth $12,050.

Question 3

What is Jane Street Group's MTEK position worth?

Accepted Answer

Jane Street Group's MTEK position was worth $12,050 in its Q4 2025 13F, before the exit in Q1 2026.

Question 4

Is Jane Street Group buying or selling MTEK?

Accepted Answer

In Q1 2026, Jane Street Group exited its entire MTEK position.

Question 5

When did Jane Street Group first buy MTEK?

Accepted Answer

Jane Street Group first reported MTEK in its Q2 2025 13F and listed it in 2 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Exited	0	-100.0%	$0	0.0%	$1.35	0
2025-Q4	New	10,388	-	$12,050	0.0%	$1.16	27
2025-Q3	Exited	0	-100.0%	$0	0.0%	$1.86	0
2025-Q2	New	20,619	-	$65,981	0.0%	$3.20	32