Montauk Renewables, Inc.
US ˙ NasdaqCM ˙ US61218C1036

SecurityMNTK / Montauk Renewables, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership736,584 shares
Latest Disclosed Value $ 847,298
Dimensional Fund Advisors Lp reports 11.53% decrease in ownership of MNTK / Montauk Renewables, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 736,584 shares of Montauk Renewables, Inc. (US:MNTK) valued at $847,072 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 832,534 shares of Montauk Renewables, Inc.. This represents a change in shares of -11.53% during the quarter. The current value of the position is $1,193,266 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F MONTAUK RENEWABLES COM 61218C103 736,584 -95,950 -11.53 847 -39.06 0.0000
2026-02-12 2025-12-31 13F MONTAUK RENEWABLES COM 61218C103 832,534 -143,504 -14.70 1,390 -29.15 0.0003
2025-11-12 2025-09-30 13F MONTAUK RENEWABLES COM 61218C103 976,038 -6,231 -0.63 1,962 -10.00 0.0004
2025-08-12 2025-06-30 13F MONTAUK RENEWABLES COM 61218C103 982,269 34,030 3.59 2,181 10.05 0.0005
2025-05-13 2025-03-31 13F MONTAUK RENEWABLES COM 61218C103 948,239 96,894 11.38 1,982 -41.53 0.0005
2025-02-13 2024-12-31 13F MONTAUK RENEWABLES COM 61218C103 851,345 46,558 5.79 3,389 -19.20 0.0008
2024-11-07 2024-09-30 13F MONTAUK RENEWABLES COM 61218C103 804,787 101,873 14.49 4,194 4.67 0.0010
2024-08-09 2024-06-30 13F MONTAUK RENEWABLES COM 61218C103 702,914 10,711 1.55 4,007 39.15 0.0010
2024-05-10 2024-03-31 13F MONTAUK RENEWABLES COM 61218C103 692,203 235,535 51.58 2,880 -29.25 0.0008
2024-02-07 2023-12-31 13F MONTAUK RENEWABLES COM 61218C103 456,668 219,758 92.76 4,069 88.55 0.0012
2023-11-09 2023-09-30 13F MONTAUK RENEWABLES COM 61218C103 236,910 221,683 1,455.85 2,158 1,809.73 0.0007
2023-08-09 2023-06-30 13F MONTAUK RENEWABLES COM 61218C103 15,227 15,227 113 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.