Arq, Inc. - Common Stock, $0.001 par value (ARQ) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock, $0.001 par value
Symbol
ARQ on Nasdaq
Shares outstanding
41,846,611
Price per share
$3.28
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
17,776,314
Total reported value
$127,279,257
% of total 13F portfolios
0%
Share change
+1,271,237
Value change
+$9,535,927
Number of holders
91
Price from insider filings
$3.28
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Arq, Inc. - Common Stock, $0.001 par value (ARQ) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
HIRSCHMAN ORIN 7.2% $11,087,678 3,012,956 Orin Hirschman 31 Dec 2024

As of 30 Sep 2025, 91 institutional investors reported holding 17,776,314 shares of Arq, Inc. - Common Stock, $0.001 par value (ARQ). This represents 42% of the company’s total 41,846,611 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Arq, Inc. - Common Stock, $0.001 par value (ARQ) together control 39% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
AIGH Capital Management LLC 6.2% 2,579,486 -2.8% 6.5% $18,469,120
BlackRock, Inc. 4.8% 2,007,432 +0.25% 0% $14,373,214
VANGUARD GROUP INC 4.1% 1,735,273 -0.78% 0% $12,424,555
ROYCE & ASSOCIATES LP 3.3% 1,373,444 +169% 0.1% $9,833,859
DIMENSIONAL FUND ADVISORS LP 2% 856,652 +11% 0% $6,133,811
Alta Fundamental Advisers LLC 2% 846,294 -59% 2.9% $6,059,465
GEODE CAPITAL MANAGEMENT, LLC 1.9% 774,637 +1.1% 0% $5,547,438
WELLINGTON MANAGEMENT GROUP LLP 1.6% 686,105 0% 0% $4,912,512
1492 Capital Management LLC 1.6% 659,010 +74% 1.9% $4,718,512
FRANKLIN RESOURCES INC 1.3% 560,789 0% $4,015,250
STATE STREET CORP 1.3% 556,475 +15% 0% $3,984,361
Vitol Holding B.V. 1.2% 511,392 0% 25% $3,661,566
York Capital Management Global Advisors, LLC 1.1% 442,959 0% 9.7% $3,171,586
GRATIA CAPITAL, LLC 1.1% 442,020 -48% 2.8% $3,164,863
MORGAN STANLEY 0.71% 295,496 +16% 0% $2,115,754
Marex Group plc 0.6% 250,000 -23% 0.02% $1,790,000
NORTHERN TRUST CORP 0.57% 237,321 +0.37% 0% $1,699,218
CenterBook Partners LP 0.55% 230,869 0.08% $1,653,022
CITADEL ADVISORS LLC 0.48% 202,692 -2.4% 0% $1,451,274
UBS Group AG 0.4% 167,283 +607% 0% $1,197,746
Squarepoint Ops LLC 0.4% 166,422 +530% 0% $1,191,582
First Eagle Investment Management, LLC 0.38% 160,731 0% $1,150,834
Bank of New York Mellon Corp 0.38% 156,991 +7.9% 0% $1,124,055
MILLENNIUM MANAGEMENT LLC 0.32% 131,864 0% $944,146
JANE STREET GROUP, LLC 0.26% 106,804 +514% 0% $764,716

Institutional Holders of Arq, Inc. - Common Stock, $0.001 par value (ARQ) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 13,491 $44,117 -$86,628 $3.28 3
2025 Q3 17,776,314 $127,279,257 +$9,535,927 $7.16 91
2025 Q2 16,454,807 $88,364,829 -$1,102,972 $5.37 81
2025 Q1 16,484,023 $68,740,521 -$2,947,794 $4.17 87
2024 Q4 16,302,847 $123,413,734 +$7,833,656 $7.57 89
2024 Q3 15,698,650 $92,150,824 +$25,544,894 $5.87 85
2024 Q2 11,246,225 $68,265,687 +$25,817,270 $6.07 70
2024 Q1 6,978,341 $45,241,610 +$5,670,507 $6.48 57
2023 Q4 6,135,655 $18,282,559 +$516,652 $2.98 44
2023 Q3 5,949,324 $10,589,332 +$482,733 $1.78 38
2023 Q2 5,671,910 $10,547,165 -$451,483 $1.86 35
2023 Q1 5,906,108 $11,694,316 -$1,030,803 $1.98 36
2022 Q4 6,375,876 $15,491,285 -$1,167,657 $2.43 41
2022 Q3 6,756,434 $18,439,278 -$1,694,760 $2.73 47
2022 Q2 7,123,555 $33,408,814 -$2,946,337 $4.69 54
2022 Q1 7,788,287 $48,435,821 -$3,593,296 $6.22 67
2021 Q4 8,346,783 $55,247,357 +$845,896 $6.62 66
2021 Q3 8,222,639 $52,541,345 -$7,744,877 $6.39 63
2021 Q2 9,360,167 $69,306,279 -$10,220,071 $7.41 73
2021 Q1 11,466,254 $63,063,036 -$3,629,729 $5.50 62
2020 Q4 12,107,401 $66,588,886 +$4,250,656 $5.50 57
2020 Q3 11,349,903 $46,078,765 -$924,388 $4.06 61
2020 Q2 11,492,528 $55,428,214 -$5,695,927 $4.85 67
2020 Q1 12,331,427 $81,014,084 -$3,635,599 $6.57 75
2019 Q4 12,775,012 $134,156,484 -$3,709,499 $10.50 73
2019 Q3 13,052,898 $193,682,224 -$2,030,961 $14.84 82
2019 Q2 13,278,341 $167,851,568 -$3,957,875 $12.64 76
2019 Q1 13,660,559 $157,912,971 +$5,428,225 $11.56 60
2018 Q4 13,224,013 $139,508,408 -$16,818,615 $10.55 59
2018 Q3 14,683,862 $175,619,999 -$5,561,930 $11.96 66
2018 Q2 15,157,110 $172,188,312 +$2,250,045 $11.36 65
2018 Q1 14,962,052 $170,865,784 +$3,461,595 $11.42 58
2017 Q4 14,730,155 $142,292,098 -$3,769,922 $9.66 54
2017 Q3 15,027,339 $164,844,680 +$6,145,991 $10.97 59
2017 Q2 14,551,195 $133,289,800 +$1,835,211 $9.16 49
2017 Q1 14,335,780 $136,760,000 +$16,561,501 $9.54 36
2016 Q4 13,463,014 $124,398,000 +$4,208,931 $9.24 30
2016 Q3 13,012,616 $97,854,000 +$90,532,684 $7.52 29
2016 Q2 973,982 $6,917,000 $7.11 4
2016 Q1 973,982 $6,477,000 -$1,000 $6.63 4
2015 Q4 974,002 $6,954,000 -$35,714 $7.14 4
2015 Q3 979,002 $6,461,000 -$159,684 $6.60 4
2015 Q2 992,008 $12,896,778 -$3,119,827 $13.00 6
2015 Q1 1,166,209 $20,035,341 -$291,444,197 $17.10 9
2014 Q4 13,867,653 $315,919,380 +$3,132,922 $22.79 78
2014 Q3 14,168,708 $301,901,409 +$9,873,243 $21.27 81
2014 Q2 13,336,402 $305,380,000 +$32,915,096 $22.93 83
2014 Q1 11,875,491 $290,842,922 +$127,312,333 $24.54 87