Mariner
MNTK icon

Mariner’s Montauk Renewables MNTK Stock Holding History

Mariner’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
Q2 		$21.2K Buy
+13,585
New +$20.1K ﹤0.01% 3476
2024
Q1 		– Sell
-22,646
Closed -$202K – 3202
2023
Q4 		$202K Sell
22,646
-2,903
-11% -$27.2K ﹤0.01% 2689
2023
Q3 		$233K Buy
25,549
+5,628
+28% +$50.5K ﹤0.01% 2386
2023
Q2 		$148K Buy
+19,921
New +$137K ﹤0.01% 2549

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

Mariner's MNTK Position: Q2 2026 in Review

Mariner opened a new position in Montauk Renewables (MNTK) in Q2 2026: 13,585 shares worth $21.2K. The stake represents ﹤0.01% of the portfolio and ranks #3476 among its holdings. This is a return to the name: Mariner previously reported a position in MNTK as recently as Q4 2023.

Mariner first reported a position in MNTK in Q2 2023 and has held it in 4 quarters since. The position peaked at $233K in Q3 2023. 91 funds tracked by Wall St. Rank hold MNTK as of Q2 2026.

  • Mariner held 13,585 shares of Montauk Renewables worth $21.2K as of Q2 2026.
  • Montauk Renewables was a new Mariner position in Q2 2026.
  • Montauk Renewables made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3476 holding.
  • Mariner first reported a position in Montauk Renewables in Q2 2023 and has held it in 4 quarters since.
  • Mariner's Montauk Renewables position peaked at $233K in Q3 2023.
  • 91 funds tracked by Wall St. Rank held Montauk Renewables as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.