Simplex Trading’s Montauk Renewables MNTK Stock Holding History

Simplex Trading’s Portfolio MNTK Stock Details MNTK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-1,400	Closed	-$2.34K	–	9746
2025 Q4	$2.34K	Buy	+1,400	New	+$2.69K	﹤0.01%	7783
2024 Q1	–	Sell	-7,200	Closed	-$64K	–	9458
2023 Q4	$64K	Sell	7,200 -200	-3%	-$1.87K	﹤0.01%	5847
2023 Q3	$67K	Buy	+7,400	New	+$66.4K	﹤0.01%	5524
2023 Q1	–	Sell	-1,400	Closed	-$15K	–	9726
2022 Q4	$15K	Sell	1,400 -4,000	-74%	-$53.5K	﹤0.01%	7150
2022 Q3	$94K	Buy	+5,400	New	+$80.6K	﹤0.01%	5613

Other funds holding MNTK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BBA

Baader Bank Aktiengesellschaft Unterschleissheim, Germany $1.28B AUM 38.1% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Simplex Trading's MNTK Position: Q1 2026 in Review

Simplex Trading opened a new position in Montauk Renewables (MNTK) in Q1 2026: 4,915 shares worth $5.65K. The stake represents ﹤0.01% of the portfolio and ranks #7805 among its holdings. This is a return to the name: Simplex Trading previously reported a position in MNTK as recently as Q3 2025.

Simplex Trading first reported a position in MNTK in Q1 2024 and has held it in 6 quarters since. The position peaked at $27K in Q1 2024. 94 funds tracked by Wall St. Rank hold MNTK as of Q1 2026.

Simplex Trading held 4,915 shares of Montauk Renewables worth $5.65K as of Q1 2026.
Montauk Renewables was a new Simplex Trading position in Q1 2026.
Montauk Renewables made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7805 holding.
Simplex Trading first reported a position in Montauk Renewables in Q1 2024 and has held it in 6 quarters since.
Simplex Trading's Montauk Renewables position peaked at $27K in Q1 2024.
94 funds tracked by Wall St. Rank held Montauk Renewables as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.