MNTK Montauk Renewables, Inc.: institutional ownership and insider trading
93 funds reported holding $40.3M of Montauk Renewables, Inc. in their latest 13F filings; in Q2 2026 funds net bought $896K, with 12 new positions and 14 funds selling out; over the last 12 months insiders bought $25.4K and sold $0 on the open market.
Famous investors holding MNTK
- Renaissance Technologies (Renaissance Technologies): $569K, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $158K, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $91.8K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $67.8K, 0.0% of the portfolio
Largest institutional holders of MNTK
- BlackRock, Inc. (BLK) — $7.35M
- VANGUARD GROUP INC — $5.89M
- VANGUARD CAPITAL MANAGEMENT LLC — $4.22M
- GEODE CAPITAL MANAGEMENT, LLC — $2.93M
- Baader Bank Aktiengesellschaft — $2.50M
- STATE STREET CORP (STT, STT-PG) — $2.14M
- BARCLAYS PLC (BCS, BCLYF) — $1.49M
- AMERICAN CENTURY COMPANIES INC — $1.48M
- Hosking Partners LLP — $1.01M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC — $841K
Recent MNTK insider trades
- May 11, 2026: Copelyn John A bought 17,506 shares ($25.4K)
5%+ owners
- Aktiv Investment Management (Pty) Ltd: 15.7% (Schedule 13D, filed Nov 10, 2025)
- Peresec Prime Brokers (Pty) Ltd: 0.0% (Schedule 13G/A, filed Nov 24, 2025)