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Arq, Inc.

ARQ
Exchange
Nasdaq
Industry
Miscellaneous Chemical Products
SEC CIK
0001515156

In the last 90 days, Arq, Inc. insiders filed 3 open-market purchases and 0 sales; 99 institutions reported holding it in 13F filings for Q2 2026, worth $39.5M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Arq, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
99
+4 vs. Q1 2026
Shares held
15.5M
+845.9K (+5.8%) vs. Q1 2026
Total value
$39.5M
+$2.01M (+5.4%) vs. Q1 2026
New holders
26
37 more added
Sold out
22
25 more reduced

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ARQ on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 99 institutions
Q1 2021: 66 institutionsQ2 2021: 76 institutionsQ3 2021: 65 institutionsQ4 2021: 68 institutionsQ1 2022: 67 institutionsQ2 2022: 57 institutionsQ3 2022: 50 institutionsQ4 2022: 44 institutionsQ1 2023: 38 institutionsQ2 2023: 36 institutionsQ3 2023: 39 institutionsQ4 2023: 46 institutionsQ1 2024: 58 institutionsQ2 2024: 73 institutionsQ3 2024: 87 institutionsQ4 2024: 93 institutionsQ1 2025: 90 institutionsQ2 2025: 83 institutionsQ3 2025: 95 institutionsQ4 2025: 103 institutionsQ1 2026: 96 institutionsQ2 2026: 99 institutions
Value heldQ2 2026: $39.5M
Q1 2021: $63.1MQ2 2021: $84.0MQ3 2021: $52.6MQ4 2021: $56.0MQ1 2022: $48.4MQ2 2022: $33.5MQ3 2022: $18.4MQ4 2022: $15.5MQ1 2023: $11.7MQ2 2023: $10.5MQ3 2023: $10.6MQ4 2023: $18.6MQ1 2024: $47.1MQ2 2024: $71.2MQ3 2024: $94.7MQ4 2024: $126.8MQ1 2025: $70.1MQ2 2025: $88.4MQ3 2025: $128.8MQ4 2025: $51.9MQ1 2026: $37.6MQ2 2026: $39.5M
Institutions holding ARQ and their total value by quarter
QuarterHoldersValue
Q2 202699$39.5M
Q1 202696$37.6M
Q4 2025103$51.9M
Q3 202595$128.8M
Q2 202583$88.4M
Q1 202590$70.1M
Q4 202493$126.8M
Q3 202487$94.7M
Q2 202473$71.2M
Q1 202458$47.1M
Q4 202346$18.6M
Q3 202339$10.6M
Q2 202336$10.5M
Q1 202338$11.7M
Q4 202244$15.5M
Q3 202250$18.4M
Q2 202257$33.5M
Q1 202267$48.4M
Q4 202168$56.0M
Q3 202165$52.6M
Q2 202176$84.0M
Q1 202166$63.1M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Arq, Inc.; share changes are against Q1 2026.

Institutions holding ARQ in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Royce & Associates LP1,862,764$4.75M0.04%+114,320+6.5%Added
AQR Capital Management LLC1,814,114$4.63M0.00%+728,404+67.1%Added
Vanguard Capital Management LLC1,464,532$3.73M0.00%+33,082+2.3%Added
Marshall Wace, LLP880,201$2.24M0.00%+70,496+8.7%Added
Peapod Lane Capital LLC787,880$2.01M1.36%+12,531+1.6%Added
Dimensional Fund Advisors LP607,420$1.55M0.00%−154,770−20.3%Reduced
Renaissance Technologies LLC598,059$1.53M0.00%+187,489+45.7%Added
Jane Street Group, LLC509,225$1.30M0.00%+319,335+168.2%Added
BlackRock, Inc.508,965$1.30M0.00%−1,588,557−75.7%Reduced
DCF Advisers, LLC461,585$1.18M0.31%+133,782+40.8%Added
Truffle Hound Capital, LLC420,000$1.07M0.68%+420,000New
Geode Capital Management, LLC399,518$1.02M0.00%−401,713−50.1%Reduced
Round Rock Advisors, LLC378,979$966.4K0.12%+188,271+98.7%Added
RBF Capital, LLC370,000$943.5K0.04%+370,000New
D. E. Shaw & Co., Inc.358,479$914.1K0.00%+76,651+27.2%Added
Gsa Capital Partners LLP347,700$887.0K0.06%+58,542+20.2%Added
Jacobs Levy Equity Management, Inc328,988$838.9K0.00%−22,200−6.3%Reduced
Marex Group plc260,848$665.2K0.00%+200,848+334.7%Added
Two Sigma Investments, LP251,777$642.0K0.00%+223,077+777.3%Added
Bank of America Corp231,490$590.3K0.00%+27,720+13.6%Added
Vanguard Fiduciary Trust Co211,100$538.3K0.00%+7,563+3.7%Added
Connor, Clark & Lunn Investment Management Ltd.181,789$463.6K0.00%+181,789New
Citadel Advisors LLC163,201$416.2K0.00%+163,201New
Rangeley Capital, LLC157,000$400.4K0.37%+157,000New
State Street Corp153,987$392.7K0.00%−410,611−72.7%Reduced
UBS Group AG136,045$346.9K0.00%+123,096+950.6%Added
Goldman Sachs Group Inc120,400$307.0K0.00%−20,526−14.6%Reduced
Marquette Asset Management, LLC106,741$272.2K0.04%+106,741New
Qube Research & Technologies Ltd93,008$237.2K0.00%+93,008New
Northern Trust Corp77,788$198.4K0.00%−150,568−65.9%Reduced
CI Private Wealth, LLC77,525$197.7K0.00%+250.0%Added
Ameriprise Financial Inc75,796$193.3K0.00%00.0%Unchanged
Bridgeway Capital Management, LLC74,780$190.7K0.00%00.0%Unchanged
Morgan Stanley71,153$181.4K0.00%−44,875−38.7%Reduced
Man Group plc58,954$150.3K0.00%+58,954New
Point72 Asset Management, L.P.57,582$146.8K0.00%+57,582New
Mariner, LLC55,712$142.0K0.00%+36,498+190.0%Added
Gabelli Funds LLC52,000$132.6K0.00%00.0%Unchanged
American Century Companies Inc50,069$127.7K0.00%−15,048−23.1%Reduced
Public Employees Retirement System of Ohio42,326$107.9K0.00%00.0%Unchanged
Ieq Capital, LLC38,358$97.8K0.00%+38,358New
Invesco Ltd.38,132$97.2K0.00%+394+1.0%Added
Mercer Global Advisors Inc37,381$95.3K0.00%+18,567+98.7%Added
JPMorgan Chase & Co37,624$94.1K0.00%+20,064+114.3%Added
Franklin Resources Inc30,688$78.3K0.00%+145+0.5%Added
Susquehanna International Group, LLP29,608$75.5K0.00%−103,437−77.7%Reduced
Acadian Asset Management LLC28,254$71.0K0.00%+28,244+282,440.0%Added
XTX Topco Ltd25,448$64.9K0.00%−47,212−65.0%Reduced
Walleye Capital LLC24,222$61.8K0.00%+24,222New
Creative Planning23,104$58.9K0.00%+23,104New
Integrity Advisory Solutions, LLC21,734$55.4K0.01%+21,734New
Centiva Capital, LP21,153$53.9K0.00%+21,153New
Wealth Enhancement Advisory Services, LLC22,910$53.2K0.00%+12,139+112.7%Added
Millennium Management LLC19,015$48.5K0.00%−26,504−58.2%Reduced
Dynamic Technology Lab Private Ltd18,579$47.0K0.01%+18,579New
Scientech Research LLC17,527$44.7K0.04%−17,101−49.4%Reduced
Rhumbline Advisers15,345$39.1K0.00%−25,851−62.8%Reduced
Simplex Trading, LLC15,004$38.3K0.00%−6,977−31.7%Reduced
State of Wisconsin Investment Board14,390$36.7K0.00%+14,390New
Vanguard Global Advisers, LLC13,907$35.5K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC13,444$34.3K0.00%−5,684−29.7%Reduced
Axq Capital, LP11,838$30.2K0.00%+11,838New
Cerity Partners LLC11,806$30.1K0.00%+11,806New
Captrust Financial Advisors11,674$29.8K0.00%+11,674New
Mraz, Amerine & Associates, Inc.11,300$28.8K0.00%00.0%Unchanged
Boothbay Fund Management, LLC11,044$28.2K0.00%+11,044New
BNP Paribas Arbitrage, SA10,923$27.9K0.00%−1,434−11.6%Reduced
Murphy Pohlad Asset Management LLC10,000$25.5K0.01%−1,600−13.8%Reduced
FMR LLC8,571$21.9K0.00%+257+3.1%Added
Firsthand Capital Management, Inc.6,800$17.3K0.03%00.0%Unchanged
Group One Trading, L.P.6,617$16.9K0.00%+6,617New
Morse Asset Management, Inc5,700$14.5K0.00%+5,700New
SRS Capital Advisors, Inc.5,210$13.3K0.00%+4,297+470.6%Added
Rockefeller Capital Management L.P.4,670$11.9K0.00%00.0%Unchanged
State of Alaska, Department of Revenue3,998$10.0K0.00%00.0%Unchanged
Russell Investments Group, Ltd.3,279$8.36K0.00%+439+15.5%Added
Allworth Financial LP2,511$6.40K0.00%+1,667+197.5%Added
Barclays PLC2,162$5.51K0.00%−3,707−63.2%Reduced
EverSource Wealth Advisors, LLC1,812$4.62K0.00%+1,204+198.0%Added
SBI Securities Co., Ltd.1,595$4.07K0.00%−1−0.1%Reduced
McMillan Office, Inc.1,390$3.54K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co1,184$3.02K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.1,052$2.68K0.00%+482+84.6%Added
Essential Partners LLC690$1.76K0.00%+480+228.6%Added
Rothschild Investment LLC254$6480.00%+111+77.6%Added
Wealth Enhancement Trust Services, Inc.184$4690.00%+184New
Farther Finance Advisors, LLC181$4590.00%−142−44.0%Reduced
IFP Advisors, Inc176$4490.00%+7+4.1%Added
The PNC Financial Services Group, Inc.171$4360.00%−5,263−96.9%Reduced
SJS Investment Consulting Inc.156$3980.00%+37+31.1%Added
Basecamp Wealth Advisors LLC143$3650.00%+74+107.2%Added
Clearstead Advisors, LLC136$3470.00%+136New
True Wealth Design, LLC100$2550.00%+88+733.3%Added
Caitong International Asset Management Co., Ltd17$430.00%+17New
JPL Wealth Management, LLC6$160.00%+4+200.0%Added
Citigroup Inc1$30.00%−1,485−99.9%Reduced
Wells Fargo & Company0$10.00%−22,592−100.0%Reduced
Royal Bank of Canada136$00.00%−6,137−97.8%Reduced
Avion Wealth194$00.00%+194New
Vanguard Portfolio Management LLC0$00.00%−184,246−100.0%Sold out