Security key
61218C103
Montauk Renewables, Inc. - Common Stock (MNTK)
CUSIP: 61218C103
Q3 2021 13F Holders as of 30 Sep 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 6,244,698
- Total 13F value
- $70,133,000
- Share change
- +3,418,938
- SEC-reported price per share
- $11.23
- Number of holders
- 19
- Value change
- +$39,931,143
- Number of buys
- 13
- 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
Q3 2021
Institutions
19
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
30 Jun 2021
13F
Lead comparable stake: 1.1%
Showing 1-6 of 15 holder rows.
Quick read
Grantham, Mayo, Van Otterloo & Co. LLC leads the comparable SEC ownership view at 1.1%.
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...
1.1%
FORT WASHINGTON INVESTMENT ADVISO...
0.17%
Arosa Capital Management LP
0.16%
Penn Capital Management Company, LLC
0.07%
1492 Capital Management LLC
0.07%
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
|
1.1%
|
$12,263,000
1,600,877 shares
|
— | 30 Jun 2021 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ |
13F
Company
|
0.17%
|
$1,820,000
237,634 shares
|
— | 30 Jun 2021 |
| Arosa Capital Management LP |
13F
Company
|
0.16%
|
$1,724,000
225,000 shares
|
— | 30 Jun 2021 |
| Penn Capital Management Company, LLC |
13F
Company
|
0.07%
|
$753,000
98,281 shares
|
— | 30 Jun 2021 |
| 1492 Capital Management LLC |
13F
Company
|
0.07%
|
$727,000
94,908 shares
|
— | 30 Jun 2021 |
| ExodusPoint Capital Management, LP |
13F
Company
|
0.06%
|
$655,000
85,546 shares
|
— | 30 Jun 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 Q3 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
19
Shares
6,244,698
Rows available
19
| 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 Q3 2021 vs Q1 2026 Across Filers
Q1 2026 holders
93
Q3 2021 holders
19
Holder diff
-74
| Investor | Q1 2026 Shares | Q3 2021 Shares | Share Diff | Share Chg % | Q1 2026 value | Q3 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend