Who owns Montauk Renewables, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MNTK from SEC Form 13F filings across 90 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 90 institutions disclosed 21.4M shares of Montauk Renewables, Inc. worth $33.3M — about 14.9% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
90
13F holders
$33.3M
value, 2026 filers
14.9%
of shares outstanding (21.4M sh)
12
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MNTK's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.7M | $7.3M | 0.0% | 3.3% | +11.6% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 2.7M | $4.2M | 0.0% | 1.9% | +0.7% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $2.9M | 0.0% | 1.3% | +6.8% |
| 4 | Baader Bank Aktiengesellschaft | 1.6M | $2.5M | 0.2% | 1.1% | 0.0% |
| 5 | STATE STREET CORP | 1.4M | $2.1M | 0.0% | 1% | +0.3% |
| 6 | BARCLAYS PLC | 953,510 | $1.5M | 0.0% | 0.7% | -8.2% |
| 7 | AMERICAN CENTURY COMPANIES INC | 950,442 | $1.5M | 0.0% | 0.7% | -0.4% |
| 8 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 539,334 | $841,361 | 0.0% | 0.4% | +3.6% |
| 9 | NORTHERN TRUST CORP | 536,057 | $836,249 | 0.0% | 0.4% | +6.1% |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 469,053 | $731,723 | 0.0% | 0.3% | +20.6% |
| 11 | DIMENSIONAL FUND ADVISORS LP | 448,818 | $700,155 | 0.0% | 0.3% | -39.1% |
| 12 | VANGUARD FIDUCIARY TRUST CO | 438,777 | $684,492 | 0.0% | 0.3% | +1.5% |
| 13 | Hosking Partners LLP | 390,517 | $609,207 | 0.0% | 0.3% | -1.6% |
| 14 | FIRST TRUST ADVISORS LP | 381,889 | $595,746 | 0.0% | 0.3% | +22.4% |
| 15 | GOLDMAN SACHS GROUP INC | 377,277 | $588,551 | 0.0% | 0.3% | +13.9% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 364,800 | $569,088 | 0.0% | 0.3% | +2.9% |
| 17 | JPMORGAN CHASE & CO | 270,982 | $422,732 | 0.0% | 0.2% | +67.0% |
| 18 | AQR CAPITAL MANAGEMENT LLC | 238,152 | $371,517 | 0.0% | 0.2% | +521.0% |
| 19 | GSA CAPITAL PARTNERS LLP | 201,055 | $314,000 | 0.0% | 0.1% | -30.6% |
| 20 | JTC Employer Solutions Trustee Ltd | 197,859 | $311,000 | 0.0% | 0.1% | 0.0% |
| 21 | Bank of New York Mellon Corp | 195,907 | $305,615 | 0.0% | 0.1% | 0.0% |
| 22 | MORGAN STANLEY | 167,182 | $260,805 | 0.0% | 0.1% | -36.0% |
| 23 | Nuveen, LLC | 162,044 | $252,788 | 0.0% | 0.1% | +16.1% |
| 24 | ALLIANCEBERNSTEIN L.P. | 142,138 | $163,459 | 0.0% | 0.1% | +45.8% |
| 25 | Caprock Group, LLCNEW | 119,801 | $186,890 | 0.0% | 0.1% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.