Montauk Renewables, Inc.
MNTK- Exchange
- Nasdaq
- Industry
- Gas & Other Services Combined
- SEC CIK
- 0001826600
No open-market purchases or sales by Montauk Renewables, Inc. insiders were filed in the last 90 days; 90 institutions reported holding it in 13F filings for Q2 2026, worth $33.3M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Montauk Renewables, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Montauk Renewables, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Ciroli John | Chief Legal Officer | 470,772 | May 22, 2026 | 1 |
| Van Asdalan Kevin A | Chief Financial Officer | 497,493 | May 22, 2026 | 1 |
| Shaw James A | Chief Operating Officer | 477,387 | May 22, 2026 | 1 |
| McClain Sean F | President & CEO | 1,141,172 | May 22, 2026 | 1 |
| Copelyn John A | Director | 17,506Indirect | May 13, 2026 | 1 |
| Frank Sharon R | VP Environ Health & Safety | 39,275 | Nov 26, 2025 | 1 |
| Barsch Michael | See Remarks | – | Sep 18, 2023 | 0 |
| Hill Scott E | VP of Business Development | 620,460 | Nov 29, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 13, 2026 (view filing) | May 11 | 2 days | Copelyn John ADirector | PPurchase | +17.5K | $1.45 | +$25.4K | New position17.5K after | |
| Nov 29, 2022 (view filing) | Nov 28 | 1 day | Hill Scott EVP of Business Development | SSale | −104.1K | $12.03 | −$1.25M | −14.4%620.5K after | 2 lots |
| Nov 29, 2022 (view filing) | Nov 28 | 1 day | McClain Sean FPresident and CEO | SSale | −60.0K | $12.09 | −$725.6K | −7.3%758.0K after | 2 lots |