Arq, Inc. 13F holders
98 funds reported a position in Arq, Inc. in their 13F for the quarter ended 30 June 2026, together 15.5 million shares worth $39.5 million. Against the quarter before, 26 opened a position, 36 added, 24 trimmed and 22 sold out; together they bought a net 845,897 shares. The largest holders: Royce & Associates LP, AQR Capital Management LLC and Vanguard Capital Management LLC.
Funds holding98+2 on Q1 2026
Shares they held15.5Mworth $39.5 million
Net bought on the quarter845,897 sharesabout $2.2 million at the funds' values
Funds buying to selling62 to 46opened or added, to cut or sold
Opened 26Added 36Held 13Trimmed 24Sold out 22
What each fund did in ARQ against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ARQ in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 14 reported a position in Arq, Inc.: 0 opened one, 1 added, 7 trimmed and 3 sold out, a net 176,002 shares sold.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Peapod Lane Capital LLC | -47,574 | 740,306 | trimmed | 13F |
| Wealth Enhancement Advisory Services, LLC | -11,080 | 11,830 | trimmed | 13F |
| Essential Partners LLC | -162 | 528 | trimmed | 13F |
| Farther Finance Advisors, LLC | -111 | 70 | trimmed | 13F |
| True Wealth Design, LLC | -75 | 25 | trimmed | 13F |
| SJS Investment Consulting Inc. | -66 | 90 | trimmed | 13F |
| IFP Advisors, Inc | -10 | 166 | trimmed | 13F |
| Caitong International Asset Management Co., Ltd | +1 | 18 | added | 13F |
| Marquette Asset Management, LLC | -106,741 | 0 | sold out | 13F |
| Murphy Pohlad Asset Management LLC | -10,000 | 0 | sold out | 13F |
| Wealth Enhancement Trust Services, Inc. | -184 | 0 | sold out | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Arq, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Renaissance Technologies, 598,059 shares worth $1.5 million, 0.0% of its reported book. New this quarter: Citadel Advisors, Point72 Asset Management. In the quarter, 5 funds added or opened a position and 2 trimmed or sold out; together they bought a net 203,389 shares, about $518,642 at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies | 598,059 | $1.5 million | 0.0% | +187,489 | added | 30 June 2026 | 13F |
| Geode Capital Management | 399,518 | $1.0 million | 0.0% | -401,713 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 251,777 | $642,031 | 0.0% | +223,077 | added | 30 June 2026 | 13F |
| Citadel Advisors | 163,201 | $416,163 | 0.0% | +163,201 | new | 30 June 2026 | 13F |
| Point72 Asset Management | 57,582 | $146,834 | 0.0% | +57,582 | new | 30 June 2026 | 13F |
| Millennium Management | 19,015 | $48,488 | 0.0% | -26,504 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 8,571 | $21,856 | 0.0% | +257 | added | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Royce & Associates LP | 1,862,764 | 12.02% | $4.8 million | 0.04% | +114,320 | 13F |
| AQR Capital Management LLC | 1,814,114 | 11.70% | $4.6 million | 0.00% | +728,404 | 13F |
| Vanguard Capital Management LLC | 1,464,532 | 9.45% | $3.7 million | 0.00% | +33,082 | 13F |
| Marshall Wace, LLP | 880,201 | 5.68% | $2.2 million | 0.00% | +70,496 | 13F |
| Peapod Lane Capital LLC | 787,880 | 5.08% | $2.0 million | 1.36% | +12,531 | 13F |
| Dimensional Fund Advisors LP | 607,420 | 3.92% | $1.5 million | 0.00% | -154,770 | 13F |
| Renaissance Technologies LLC | 598,059 | 3.86% | $1.5 million | 0.00% | +187,489 | 13F |
| Jane Street Group, LLC | 509,225 | 3.28% | $1.3 million | 0.00% | +319,335 | 13F |
| BlackRock, Inc. | 508,965 | 3.28% | $1.3 million | 0.00% | -1,588,557 | 13F |
| DCF Advisers, LLC | 461,585 | 2.98% | $1.2 million | 0.31% | +133,782 | 13F |
| Truffle Hound Capital, LLC | 420,000 | 2.71% | $1.1 million | 0.68% | new | 13F |
| Geode Capital Management, LLC | 399,518 | 2.58% | $1.0 million | 0.00% | -401,713 | 13F |
| Round Rock Advisors LLC | 378,979 | 2.44% | $966,396 | 0.12% | +188,271 | 13F |
| RBF Capital, LLC | 370,000 | 2.39% | $943,500 | 0.04% | new | 13F |
| D. E. Shaw & Co., Inc. | 358,479 | 2.31% | $914,121 | 0.00% | +76,651 | 13F |
| Gsa Capital Partners LLP | 347,700 | 2.24% | $887,000 | 0.06% | +58,542 | 13F |
| Jacobs Levy Equity Management, Inc. | 328,988 | 2.12% | $838,919 | 0.00% | -22,200 | 13F |
| Marex Group Ltd | 260,848 | 1.68% | $665,162 | 0.01% | +200,848 | 13F |
| Two Sigma Investments, LP | 251,777 | 1.62% | $642,031 | 0.00% | +223,077 | 13F |
| Bank of America Corp. | 231,490 | 1.49% | $590,300 | 0.00% | +27,720 | 13F |
| Vanguard Fiduciary Trust Co. | 211,100 | 1.36% | $538,305 | 0.00% | +7,563 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 181,789 | 1.17% | $463,562 | 0.00% | new | 13F |
| Citadel Advisors LLC | 163,201 | 1.05% | $416,163 | 0.00% | new | 13F |
| Rangeley Capital, LLC | 157,000 | 1.01% | $400,350 | 0.37% | new | 13F |
| State Street Corp. | 153,987 | 0.99% | $392,667 | 0.00% | -410,611 | 13F |
| UBS Group AG | 136,045 | 0.88% | $346,915 | 0.00% | +123,096 | 13F |
| Goldman Sachs Group Inc. | 120,400 | 0.78% | $307,020 | 0.00% | -20,526 | 13F |
| Marquette Asset Management, LLC | 106,741 | 0.69% | $272,190 | 0.04% | new | 13F |
| Qube Research & Technologies Ltd | 93,008 | 0.60% | $237,170 | 0.00% | new | 13F |
| Northern Trust Corp. | 77,788 | 0.50% | $198,360 | 0.00% | -150,568 | 13F |
| Corient Private Wealth LP | 77,525 | 0.50% | $197,689 | 0.00% | +25 | 13F |
| Ameriprise Financial Inc. | 75,796 | 0.49% | $193,280 | 0.00% | no change | 13F |
| Bridgeway Capital Management, LLC | 74,780 | 0.48% | $190,689 | 0.00% | no change | 13F |
| Morgan Stanley | 71,153 | 0.46% | $181,441 | 0.00% | -44,875 | 13F |
| Man Group plc | 58,954 | 0.38% | $150,333 | 0.00% | new | 13F |
| Point72 Asset Management, L.P. | 57,582 | 0.37% | $146,834 | 0.00% | new | 13F |
| Mariner, LLC | 55,712 | 0.36% | $142,027 | 0.00% | +36,498 | 13F |
| Gabelli Funds LLC | 52,000 | 0.34% | $132,600 | 0.00% | no change | 13F |
| American Century Companies Inc. | 50,069 | 0.32% | $127,676 | 0.00% | -15,048 | 13F |
| Public Employees Retirement System of Ohio | 42,326 | 0.27% | $107,931 | 0.00% | no change | 13F |
| Ieq Capital, LLC | 38,358 | 0.25% | $97,813 | 0.00% | new | 13F |
| Invesco Ltd. | 38,132 | 0.25% | $97,237 | 0.00% | +394 | 13F |
| Mercer Global Advisors Inc. | 37,381 | 0.24% | $95,322 | 0.00% | +18,567 | 13F |
| JPMorgan Chase & Co. | 37,624 | 0.24% | $94,061 | 0.00% | +20,064 | 13F |
| Franklin Resources Inc. | 30,688 | 0.20% | $78,254 | 0.00% | +145 | 13F |
| Susquehanna International Group, LLP | 29,608 | 0.19% | $75,500 | 0.00% | -103,437 | 13F |
| Acadian Asset Management LLC | 28,254 | 0.18% | $71,000 | 0.00% | +28,244 | 13F |
| XTX Topco Ltd | 25,448 | 0.16% | $64,892 | 0.00% | -47,212 | 13F |
| Walleye Capital LLC | 24,222 | 0.16% | $61,766 | 0.00% | new | 13F |
| Creative Planning | 23,104 | 0.15% | $58,915 | 0.00% | new | 13F |
The 50 largest of the 98 funds that reported a position in ARQ in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on ARQ
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 72,600 | $185,130 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 27 April 2026 | 13G/A | Orin Hirschman and 3 others | 0 | 0.0% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 12 March 2026 | 13G | Daniel Kaufman and 1 other | 2.2 million | 5.1% | 11 March 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 28 January 2026 | 13G/A | Orin Hirschman and 3 others | 2.5 million | 5.8% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 21 August 2026 | 107 | $2.26 | SEC |
| 20 August 2026 | 1,963 | $2.17 | SEC |
| 6 August 2026 | 2,777 | $2.05 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.