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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −2 vs. previous quarter
- 90
- 13F valueReported value at the end of Q2 2026
- $33.3M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding MNTK, Q2 2026
No superinvestor reported holding MNTK at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Montauk Renewables, Inc. insiders from Form 4, newest first.
| 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 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Montauk Renewables, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,709,893 | $7.35M | 0.00% | +490,896+11.6% | Added |
| Vanguard Capital Management LLC | 2,706,900 | $4.22M | 0.00% | +18,186+0.7% | Added |
| Geode Capital Management, LLC | 1,879,292 | $2.93M | 0.00% | +120,014+6.8% | Added |
| Baader Bank INC | 1,605,000 | $2.50M | 0.20% | 00.0% | Unchanged |
| State Street Corp | 1,369,693 | $2.14M | 0.00% | +4,220+0.3% | Added |
| Barclays PLC | 953,510 | $1.49M | 0.00% | −85,407−8.2% | Reduced |
| American Century Companies Inc | 950,442 | $1.48M | 0.00% | −4,026−0.4% | Reduced |
| Charles Schwab Investment Management Inc | 539,334 | $841.4K | 0.00% | +18,723+3.6% | Added |
| Northern Trust Corp | 536,057 | $836.2K | 0.00% | +30,683+6.1% | Added |
| Vanguard Portfolio Management LLC | 469,053 | $731.7K | 0.00% | +80,134+20.6% | Added |