RhumbLine Advisers
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RhumbLine Advisers’s Montauk Renewables MNTK Stock Holding History

RhumbLine Advisers’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 		$148K Buy
94,756
+1,678
+2% +$2.48K ﹤0.01% 3400
2026
Q1 		$107K Sell
93,078
-3,630
-4% -$5.47K ﹤0.01% 3382
2025
Q4 		$161K Sell
96,708
-29,004
-23% -$55.7K ﹤0.01% 3275
2025
Q3 		$253K Buy
125,712
+19,831
+19% +$42.5K ﹤0.01% 3101
2025
Q2 		$235K Buy
105,881
+11,820
+13% +$25K ﹤0.01% 3142
2025
Q1 		$197K Buy
94,061
+3,622
+4% +$13.2K ﹤0.01% 3108
2024
Q4 		$360K Buy
90,439
+3,285
+4% +$15.7K ﹤0.01% 2879
2024
Q3 		$454K Sell
87,154
-4,984
-5% -$24.9K ﹤0.01% 2757
2024
Q2 		$525K Buy
92,138
+2,366
+3% +$10.9K ﹤0.01% 2648
2024
Q1 		$373K Buy
89,772
+1,670
+2% +$10.5K ﹤0.01% 2840
2023
Q4 		$785K Buy
88,102
+240
+0.3% +$2.25K ﹤0.01% 2393
2023
Q3 		$800K Sell
87,862
-505
-0.6% -$4.53K ﹤0.01% 2333
2023
Q2 		$657K Buy
88,367
+5,463
+7% +$37.7K ﹤0.01% 2519
2023
Q1 		$652K Buy
82,904
+3,291
+4% +$33.4K ﹤0.01% 2312
2022
Q4 		$878K Buy
79,613
+1,204
+2% +$16.1K ﹤0.01% 2203
2022
Q3 		$1.37M Buy
78,409
+6,467
+9% +$96.6K ﹤0.01% 1974
2022
Q2 		$723K Buy
+71,942
New +$857K ﹤0.01% 2307

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

RhumbLine Advisers's MNTK Position: Q2 2026 in Review

RhumbLine Advisers increased its Montauk Renewables (MNTK) stake by 1.8% in Q2 2026, buying an estimated $2.48K and bringing the position to 94,756 shares worth $148K. The position accounts for ﹤0.01% of the portfolio, ranked #3400.

RhumbLine Advisers first reported a position in MNTK in Q2 2022 and has held it in 17 quarters since. The position peaked at $1.37M in Q3 2022. 91 funds tracked by Wall St. Rank hold MNTK as of Q2 2026.

  • RhumbLine Advisers held 94,756 shares of Montauk Renewables worth $148K as of Q2 2026.
  • RhumbLine Advisers bought 1,678 Montauk Renewables shares in Q2 2026, an estimated $2.48K.
  • Montauk Renewables made up ﹤0.01% of RhumbLine Advisers's portfolio in Q2 2026, its #3400 holding.
  • RhumbLine Advisers first reported a position in Montauk Renewables in Q2 2022 and has held it in 17 quarters since.
  • RhumbLine Advisers's Montauk Renewables position peaked at $1.37M in Q3 2022.
  • 91 funds tracked by Wall St. Rank held Montauk Renewables as of Q2 2026.

Based on RhumbLine Advisers's 13F filing for Q2 2026, filed 12 Aug 2026.