Jane Street’s Maris-Tech MTEK Stock Holding History

Jane Street’s Portfolio MTEK Stock Details MTEK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$20.1K	Buy	+26,489	New	+$28.5K	﹤0.01%	11287
2026 Q1	–	Sell	-10,388	Closed	-$12K	–	12484
2025 Q4	$12K	Buy	+10,388	New	+$15.8K	﹤0.01%	10811
2025 Q3	–	Sell	-20,619	Closed	-$66K	–	11417
2025 Q2	$66K	Buy	+20,619	New	+$48K	﹤0.01%	9104

Other funds holding MTEK

Summit Securities Group New York $1.06B AUM 29.62% 1-Year Est. Return

Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return

Bogart Wealth LLC Mclean, Virginia $3.04B AUM 20.04% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Jane Street's MTEK Position: Q3 2026 in Review

Jane Street opened a new position in Maris-Tech (MTEK) in Q3 2026: 26,489 shares worth $20.1K. The stake represents ﹤0.01% of the portfolio and ranks #11287 among its holdings. This is a return to the name: Jane Street previously reported a position in MTEK as recently as Q4 2025.

Jane Street first reported a position in MTEK in Q2 2025 and has held it in 3 quarters since. The position peaked at $66K in Q2 2025. 6 funds tracked by Wall St. Rank hold MTEK as of Q3 2026.

Jane Street held 26,489 shares of Maris-Tech worth $20.1K as of Q3 2026.
Maris-Tech was a new Jane Street position in Q3 2026.
Maris-Tech made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #11287 holding.
Jane Street first reported a position in Maris-Tech in Q2 2025 and has held it in 3 quarters since.
Jane Street's Maris-Tech position peaked at $66K in Q2 2025.
6 funds tracked by Wall St. Rank held Maris-Tech as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.