Montauk Renewables, Inc. (MNTK)
Nasdaq: MNTK · Gas & Other Services Combined · Pittsburgh, PA · filing with the SEC since 2020
Grade4.6
◀ Past 4.5● Present 5.2▶ Future 3.8
Who owns Montauk Renewables, Inc.
As filed with the SECHolders of 5% or more
1
Aktiv Investment Management (Pty) Ltd holds 15.7% of Common Stock, par value $0.01 per share, as its SCHEDULE 13D filed Nov 10, 2025 says.
Directors and officers
6
report now, of 14 people on the record since 2021. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Aktiv Investment Management (Pty) Ltd
SCHEDULE 13D · filed Nov 10, 2025 · Common Stock, par value $0.01 per share
Peresec Prime Brokers (Pty) Ltd
SCHEDULE 13G/A · filed Nov 24, 2025 · Common Stock · reported falling below 5%
What MNTK reports owning in othersstakes of 5% or more, and other ties
28 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 11, 2026.
Insider tradesForm 4
0sales
1purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window1 of 18 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Copelyn John A | director | 0 | $0 | 0 | 1 | $0 |