Montauk Renewables, Inc.
US ˙ NasdaqCM ˙ US61218C1036

SecurityMNTK / Montauk Renewables, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership37,339 shares
Latest Disclosed Value $ 42,940
Invesco Ltd. reports 20.24% increase in ownership of MNTK / Montauk Renewables, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 37,339 shares of Montauk Renewables, Inc. (US:MNTK) valued at $42,940 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 31,055 shares of Montauk Renewables, Inc.. This represents a change in shares of 20.24% during the quarter. The current value of the position is $61,983 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F MONTAUK RENEWABLES COM 61218C103 37,339 6,284 20.24 43 -17.65 0.0000
2026-02-19 2025-12-31 13F MONTAUK RENEWABLES COM 61218C103 31,055 8,054 35.02 52 10.87 0.0000
2025-11-13 2025-09-30 13F MONTAUK RENEWABLES COM 61218C103 23,001 2,224 10.70 46 0.00 0.0000
2025-08-13 2025-06-30 13F MONTAUK RENEWABLES COM 61218C103 20,777 -18,948 -47.70 46 -44.58 0.0000
2025-05-12 2025-03-31 13F MONTAUK RENEWABLES COM 61218C103 39,725 -2,808 -6.60 83 -50.89 0.0000
2025-02-13 2024-12-31 13F MONTAUK RENEWABLES COM 61218C103 42,533 -3,258 -7.11 169 -28.99 0.0000
2024-11-12 2024-09-30 13F MONTAUK RENEWABLES COM 61218C103 45,791 -2,124 -4.43 239 -12.82 0.0000
2024-08-13 2024-06-30 13F MONTAUK RENEWABLES COM 61218C103 47,915 -1,076 -2.20 273 34.48 0.0001
2024-05-14 2024-03-31 13F MONTAUK RENEWABLES COM 61218C103 48,991 -14,050 -22.29 204 -63.81 0.0000
2024-02-13 2023-12-31 13F MONTAUK RENEWABLES COM 61218C103 63,041 7,060 12.61 562 10.22 0.0001
2023-11-13 2023-09-30 13F MONTAUK RENEWABLES COM 61218C103 55,981 -3,984 -6.64 510 14.13 0.0001
2023-08-11 2023-06-30 13F MONTAUK RENEWABLES COM 61218C103 59,965 -13,581 -18.47 446 -22.84 0.0001
2023-05-12 2023-03-31 13F MONTAUK RENEWABLES COM 61218C103 73,546 -193,131 -72.42 579 -80.35 0.0002
2023-02-13 2022-12-31 13F MONTAUK RENEWABLES COM 61218C103 266,677 12,634 4.97 2,941 -33.61 0.0009
2022-11-14 2022-09-30 13F MONTAUK RENEWABLES COM 61218C103 254,043 122,235 92.74 4,430 234.34 0.0014
2022-08-15 2022-06-30 13F MONTAUK RENEWABLES COM 61218C103 131,808 131,808 1,325 0.0004
2021-08-16 2021-06-30 13F MONTAUK RENEWABLES COM 61218C103 0 -293,041 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MONTAUK RENEWABLES COM 61218C103 293,041 293,041 3,540 0.0009
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.