Arq

ARQ · NASDAQ

$1.86+$0.08 (+4.49%)TodayMarket closed · Oct 20, 7:30 PM ET

Prev close $1.78

Who owns ARQ

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 38.5% of ARQ’s shares.

Mcintyre (Julian Alexander)7.7%
Blank (Jeremy)5.9%
Kaufman (Daniel)5.1%
Royce Investment Partners4.3%
Next 6 largest institutions15.4%
All other shareholders61.5%

Top institutional holders of ARQ
Holder	Shares	% of shares	Change, last filing	Filed
Mcintyre (Julian Alexander)	3.30M	7.69%	+49.28K	Jul 1, 2026
Blank (Jeremy)	2.54M	5.91%	+49.28K	Jul 1, 2026
Kaufman (Daniel)	2.19M	5.10%	+2.19M	Mar 11, 2026
Royce Investment Partners	1.86M	4.34%	+114.32K	Jun 30, 2026
AQR Capital Management, LLC	1.81M	4.23%	+728.40K	Jun 30, 2026
Vanguard Capital Management, LLC	1.46M	3.41%	+33.08K	Jun 30, 2026
Rasmus (Robert E)	1.08M	2.51%	+70.72K	Apr 14, 2026
Marshall Wace LLP	880.20K	2.05%	+70.50K	Jun 30, 2026
Peapod Lane Capital LLC	787.88K	1.84%	+12.53K	Jun 30, 2026
Dimensional Fund Advisors, L.P.	607.42K	1.41%	−154.77K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of ARQ
Holder	Shares	% of shares	Change, last filing	Filed
Vanguard Total Stock Market Index Fund	1.06M	2.46%	+0	Jul 31, 2026
Royce Small-Cap Opportunity Fund	910.38K	2.12%	+10.37K	Jun 30, 2026
FTGF Royce US Small Cap Opportunity Fund	905.33K	2.11%	−4.68K	Jul 31, 2026
Vanguard Extended Market Index Fund	372.60K	0.87%	+0	Jul 31, 2026
DFA US Small Cap Portfolio	118.86K	0.28%	+78.20K	Apr 30, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $56.21K (6 trades) and sold $37.93K (1 trade) of ARQ on the open market.

Latest ARQ insider transactions
Insider	Date	Type	Shares	Price	Value
Steinmetz Shimon	Sep 8, 2026	Buy	1.87K	$2.34	$4.38K
Steinmetz Shimon	Sep 8, 2026	Buy	1.10K	$2.34	$2.57K
Steinmetz Shimon	Sep 4, 2026	Buy	4.36K	$2.27	$9.90K
Steinmetz Shimon	Sep 4, 2026	Buy	1.40K	$2.29	$3.21K
Steinmetz Shimon	Sep 3, 2026	Buy	8.77K	$2.23	$19.51K
Steinmetz Shimon	Sep 3, 2026	Buy	7.50K	$2.22	$16.63K
Owino Peter Oluoch	Sep 1, 2026	Award	61.05K	—	—
Owino Peter Oluoch	Sep 1, 2026	Award	61.05K	—	—
Owino Peter Oluoch	Sep 1, 2026	Award	100.00K	—	—
Wong Joseph M	Aug 14, 2026	Award	55.00K	—	—

Short interest

Settled Sep 30, 2026

Shares short: 497.93K
Days to cover: 2.29
% of shares outstanding: 1.16%
Average daily volume: 217.23K
Change since last report: +6.8%

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