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 $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BBA
Baader Bank Aktiengesellschaft Unterschleissheim, Germany $1.33B AUM 47.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Simplex Trading's MNTK Position: Q2 2026 in Review

Simplex Trading reduced its Montauk Renewables (MNTK) stake by 82% in Q2 2026, selling an estimated $5.99K and leaving 864 shares worth $1.35K. The position accounts for ﹤0.01% of the portfolio, ranked #8768.

Simplex Trading first reported a position in MNTK in Q1 2024 and has held it in 7 quarters since. The position peaked at $27K in Q1 2024. 91 funds tracked by Wall St. Rank hold MNTK as of Q2 2026.

  • Simplex Trading held 864 shares of Montauk Renewables worth $1.35K as of Q2 2026.
  • Simplex Trading sold 4,051 Montauk Renewables shares in Q2 2026, an estimated $5.99K.
  • Montauk Renewables made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #8768 holding.
  • Simplex Trading first reported a position in Montauk Renewables in Q1 2024 and has held it in 7 quarters since.
  • Simplex Trading's Montauk Renewables position peaked at $27K in Q1 2024.
  • 91 funds tracked by Wall St. Rank held Montauk Renewables as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.