Simplex Trading
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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
2025
Q2 		– Sell
-1,800
Closed -$3K – 9333
2025
Q1 		$3K Buy
+1,800
New +$6.57K ﹤0.01% 7840
2024
Q1 		– Sell
-600
Closed -$5K – 9459
2023
Q4 		$5K Buy
+600
New +$5.62K ﹤0.01% 7875
2022
Q4 		– Sell
-200
Closed -$3K – 9930
2022
Q3 		$3K Buy
+200
New +$2.99K ﹤0.01% 9115

Other funds holding MNTK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Northern Trust
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.