Security key
61218C103
Montauk Renewables, Inc. - Common Stock (MNTK)
CUSIP: 61218C103
Q2 2021 13F Holders as of 30 Jun 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 2,825,760
- Total 13F value
- $22,672,000
- Share change
- -745,100
- SEC-reported price per share
- $7.66
- Number of holders
- 20
- Value change
- -$12,841,489
- Number of buys
- 12
- Number of sells
- 14
- Shares outstanding
- 142,023,490
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2021
Institutions
20
Top holders
10
MNTK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Montauk Renewables, Inc. SEC filings
Montauk Renewables, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 61218C103
Recent filing periods:
Ownership snapshot
Top reported holders of MNTK - Montauk Renewables, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Grantham, Mayo, Van Otter...
Disclosed value leader
Grantham, Mayo, Van Otter...
Comparable rows
15/15
Latest evidence
31 Mar 2021
13F
Lead comparable stake: 0.71%
Showing 1-6 of 15 holder rows.
Quick read
Grantham, Mayo, Van Otterloo & Co. LLC leads the comparable SEC ownership view at 0.71%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Grantham, Mayo, Van Otterloo & Co. LLC's linked filing trail.
Comparable ownership
Top 5
Grantham, Mayo, Van Otterloo & Co...
0.71%
ROYAL BANK OF CANADA
0.47%
BNP Paribas Asset Management Hold...
0.37%
Invesco Ltd.
0.21%
Arosa Capital Management LP
0.16%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Grantham, Mayo, Van Otterloo & Co. LLC |
13F
Company
|
0.71%
|
$12,253,000
1,014,298 shares
|
— | 31 Mar 2021 |
| ROYAL BANK OF CANADA |
13F
Company
|
0.47%
|
$8,120,000
672,191 shares
|
— | 31 Mar 2021 |
| BNP Paribas Asset Management Holding S.A. |
13F
Company
|
0.37%
|
$6,355,000
526,116 shares
|
— | 31 Mar 2021 |
| Invesco Ltd. |
13F
Company
|
0.21%
|
$3,540,000
293,041 shares
|
— | 31 Mar 2021 |
| Arosa Capital Management LP |
13F
Company
|
0.16%
|
$2,718,000
225,000 shares
|
— | 31 Mar 2021 |
| Harel Insurance Investments & Financial Services Ltd. |
13F
Company
|
0.1%
|
$5,548,000
137,457 shares
|
— | 31 Mar 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
20
Shares
2,825,760
Rows available
20
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2021 vs Q1 2026 Across Filers
Q1 2026 holders
93
Q2 2021 holders
20
Holder diff
-73
| Investor | Q1 2026 Shares | Q2 2021 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend