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
$3.32
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
+$9,535,921
Number of holders
91
Price from insider filings
$3.32
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% $11,178,067 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 13,427 $43,907 -$86,839 $3.32 2
2025 Q3 17,776,314 $127,279,257 +$9,535,921 $7.16 91
2025 Q2 16,454,807 $88,364,829 -$1,102,976 $5.37 81
2025 Q1 16,484,023 $68,740,683 -$2,947,822 $4.17 87
2024 Q4 16,302,847 $123,414,102 +$7,833,649 $7.57 89
2024 Q3 15,698,650 $92,150,606 +$25,547,304 $5.87 86
2024 Q2 11,246,226 $68,266,112 +$25,817,714 $6.07 70
2024 Q1 6,978,340 $45,241,601 +$5,518,974 $6.48 58
2023 Q4 6,135,655 $18,282,611 +$395,174 $2.98 44
2023 Q3 5,949,130 $10,588,709 -$426,869 $1.78 37
2023 Q2 6,183,302 $11,498,165 +$499,500 $1.86 36
2023 Q1 5,905,943 $11,692,489 -$1,031,271 $1.98 35
2022 Q4 6,375,876 $15,491,285 -$1,168,345 $2.43 41
2022 Q3 6,689,919 $18,257,278 -$1,508,073 $2.73 46
2022 Q2 6,752,757 $31,614,868 -$3,006,932 $4.69 53
2022 Q1 7,418,724 $46,136,821 -$3,602,899 $6.22 63
2021 Q4 8,096,006 $53,587,357 +$928,671 $6.62 63
2021 Q3 7,961,918 $50,879,345 -$7,009,317 $6.39 62
2021 Q2 8,992,401 $66,581,279 -$10,772,241 $7.41 72
2021 Q1 11,466,014 $63,061,716 -$3,631,427 $5.50 61
2020 Q4 12,106,007 $66,581,566 +$4,242,653 $5.50 55
2020 Q3 9,621,171 $39,059,791 -$937,402 $4.06 57
2020 Q2 11,492,288 $55,427,050 -$5,697,367 $4.85 66
2020 Q1 12,200,811 $80,156,507 -$3,437,462 $6.57 72
2019 Q4 12,774,772 $134,153,964 -$3,710,378 $10.50 72
2019 Q3 12,645,412 $187,635,224 -$4,007,718 $14.84 79
2019 Q2 12,987,608 $164,175,568 -$5,835,499 $12.64 73
2019 Q1 13,569,488 $156,861,971 +$4,997,677 $11.56 57
2018 Q4 13,170,611 $138,946,408 -$16,681,969 $10.55 57
2018 Q3 14,683,036 $175,609,999 -$5,570,238 $11.96 65
2018 Q2 15,156,970 $172,186,312 +$2,248,035 $11.36 64
2018 Q1 14,961,940 $170,864,784 +$3,458,680 $11.42 57
2017 Q4 14,727,630 $142,268,098 -$3,771,712 $9.66 53
2017 Q3 14,853,692 $162,940,680 +$6,103,268 $10.97 58
2017 Q2 14,551,195 $133,289,800 +$1,835,181 $9.16 49
2017 Q1 14,335,780 $136,760,000 +$16,561,511 $9.54 36
2016 Q4 13,463,014 $124,398,000 +$4,208,934 $9.24 30
2016 Q3 13,012,416 $97,852,000 +$90,530,903 $7.52 28
2016 Q2 973,802 $6,916,000 $0 $7.11 3
2016 Q1 973,982 $6,477,000 $0 $6.63 4
2015 Q4 973,802 $6,953,000 -$35,715 $7.14 3
2015 Q3 978,802 $6,460,000 -$159,684 $6.60 3
2015 Q2 992,008 $12,896,778 -$2,318,827 $13.00 6
2015 Q1 1,166,209 $20,035,341 -$291,440,175 $17.10 9
2014 Q4 13,867,478 $315,915,380 +$3,138,163 $22.79 78
2014 Q3 14,167,952 $301,885,409 +$9,861,137 $21.27 80
2014 Q2 13,336,402 $305,380,000 +$32,913,601 $22.93 84
2014 Q1 11,742,530 $287,579,922 +$124,712,959 $24.54 87