ARQ Arq, Inc.
Arq, Inc. (ARQ) Institutional Ownership
What the institutions did with ARQ last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| ROYCE & ASSOCIATES LP | 1.9M | 12.0% |
| AQR CAPITAL MANAGEMENT LLC | 1.8M | 11.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 9.4% |
| MARSHALL WACE, LLP | 880.2K | 5.7% |
| Peapod Lane Capital LLC | 787.9K | 5.1% |
| DIMENSIONAL FUND ADVISORS LP | 607.4K | 3.9% |
| RENAISSANCE TECHNOLOGIES LLC | 598.1K | 3.9% |
| JANE STREET GROUP, LLC | 509.2K | 3.3% |
| BlackRock, Inc. | 509.0K | 3.3% |
| DCF Advisers, LLC | 461.6K | 3.0% |
| Truffle Hound Capital, LLC | 420.0K | 2.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 399.5K | 2.6% |
| Round Rock Advisors LLC | 379.0K | 2.4% |
| RBF Capital, LLC | 370.0K | 2.4% |
| D. E. Shaw & Co., Inc. | 358.5K | 2.3% |
| GSA CAPITAL PARTNERS LLP | 347.7K | 2.2% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 329.0K | 2.1% |
| Marex Group Ltd | 260.8K | 1.7% |
| TWO SIGMA INVESTMENTS, LP | 251.8K | 1.6% |
| BANK OF AMERICA CORP /DE/ | 231.5K | 1.5% |
| VANGUARD FIDUCIARY TRUST CO | 211.1K | 1.4% |
| Connor, Clark & Lunn Investment Management Ltd. | 181.8K | 1.2% |
| CITADEL ADVISORS LLC | 163.2K | 1.1% |
| Rangeley Capital, LLC | 157.0K | 1.0% |
| STATE STREET CORP | 154.0K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Reduced | 2.1M | 509.0K | -1.6M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.1M | 1.8M | +728.4K |
| Truffle Hound Capital, LLC | New | 0 | 420.0K | +420.0K |
| STATE STREET CORP | Reduced | 564.6K | 154.0K | -410.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 801.2K | 399.5K | -401.7K |
| RBF Capital, LLC | New | 0 | 370.0K | +370.0K |
| JANE STREET GROUP, LLC | Increased | 189.9K | 509.2K | +319.3K |
| TWO SIGMA INVESTMENTS, LP | Increased | 28.7K | 251.8K | +223.1K |
| Marex Group Ltd | Increased | 60.0K | 260.8K | +200.8K |
| Round Rock Advisors LLC | Increased | 190.7K | 379.0K | +188.3K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 410.6K | 598.1K | +187.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Sold Out | 184.2K | 0 | -184.2K |
| Connor, Clark & Lunn Investment Management Ltd. | New | 0 | 181.8K | +181.8K |
| CITADEL ADVISORS LLC | New | 0 | 163.2K | +163.2K |
| Rangeley Capital, LLC | New | 0 | 157.0K | +157.0K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 762.2K | 607.4K | -154.8K |
| NORTHERN TRUST CORP | Reduced | 228.4K | 77.8K | -150.6K |
| DCF Advisers, LLC | Increased | 327.8K | 461.6K | +133.8K |
| UBS Group AG | Increased | 12.9K | 136.0K | +123.1K |
| ROYCE & ASSOCIATES LP | Increased | 1.7M | 1.9M | +114.3K |
| Marquette Asset Management, LLC | New | 0 | 106.7K | +106.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 133.0K | 29.6K | -103.4K |
| Qube Research & Technologies Ltd | New | 0 | 93.0K | +93.0K |
| D. E. Shaw & Co., Inc. | Increased | 281.8K | 358.5K | +76.7K |
| Bank of New York Mellon Corp | Sold Out | 73.1K | 0 | -73.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.