Arq Institutional Ownership

NASDAQ ARQ

$1.79 -0.05 (-2.72%)

As of: Oct 22, 2026 · 9:50 AM EDT

Institutions by Trading Activity

98 Institutions

Increased 63 64.3%

Unchanged 11 11.2%

Reduced 24 24.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

36.16%

▲+1.93 pp QoQ

Shares Held by Institutions

15.51Mn

of 42.89Mn outstanding

▲+5.68% QoQ

Shares Outstanding

42.89Mn

27.38Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+832.96K

accumulated since last quarter

Value of Holdings

$28.84Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Arq, Inc. (NASDAQ:ARQ) had 98 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

These investors held 36.16% of ARQ's outstanding shares at the end of Q2 2026, up from 34.22% in Q1 2026.
Total holdings of ARQ shares rose 5.68% from Q1 2026, and the number of holders rose 24.05% from Q2 2025.
Of the 98 holders of ARQ in Q2 2026, 63 added to their positions, 24 reduced their stakes and 11 left their positions unchanged.
In total, institutional investors held 15.51Mn shares of ARQ at the end of Q2 2026, up 832.96K from the prior quarter and down 479.3K from a year earlier.
As of June 30, 2026, Royce & Associates LP held the largest stake in ARQ with 1.86Mn shares, or 4.34% of shares outstanding.
Holders that added the most shares of ARQ in Q2 2026 were AQR Capital Management LLC (+728.4K shares), Jane Street Group, LLC (+319.33K shares), Two Sigma Investments, LP (+223.08K shares), Marex Group Ltd (+200.85K shares) and Round Rock Advisors LLC (+188.27K shares).
Holders that trimmed the most shares of ARQ in Q2 2026 while keeping a position were BlackRock, Inc. (-1.59Mn shares), State Street Corp (-410.61K shares), Geode Capital Management, LLC (-401.71K shares), Dimensional Fund Advisors LP (-154.77K shares) and Northern Trust Corp (-150.57K shares).
Per Business Quant data, the 10 largest holders of ARQ at the end of Q2 2026 were Royce & Associates LP (1.86Mn shares), AQR Capital Management LLC (1.81Mn shares), Vanguard Capital Management LLC (1.46Mn shares), Marshall Wace, LLP (880.2K shares), Peapod Lane Capital LLC (787.88K shares), Dimensional Fund Advisors LP (607.42K shares), Renaissance Technologies LLC (598.06K shares), Jane Street Group, LLC (509.23K shares), BlackRock, Inc. (508.96K shares) and DCF Advisers, LLC (461.58K shares).

Form 13F Holdings

99 Institutional Holders

Report period 30 Jun, 2026

Total shares held 15.51Mn

Of outstanding 36.16%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	ROYCE & ASSOCIATES LP	0000906304	1,862,764	4.34%	▲114,320	+6.54%	$4.75Mn
2	AQR CAPITAL MANAGEMENT LLC	0001167557	1,814,114	4.23%	▲728,404	+67.09%	$4.63Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,464,532	3.41%	▲33,082	+2.31%	$3.73Mn
4	MARSHALL WACE, LLP	0001318757	880,201	2.05%	▲70,496	+8.71%	$2.24Mn
5	Peapod Lane Capital LLC	0002050979	787,880	1.84%	▲12,531	+1.62%	$2.01Mn
6	DIMENSIONAL FUND ADVISORS LP	0000354204	607,420	1.42%	▼154,770	-20.31%	$1.55Mn
7	RENAISSANCE TECHNOLOGIES LLC	0001037389	598,059	1.39%	▲187,489	+45.67%	$1.53Mn
8	JANE STREET GROUP, LLC	0001595888	509,225	1.19%	▲319,335	+168.17%	$1.30Mn
9	BlackRock, Inc.	0002012383	508,965	1.19%	▼1,588,557	-75.73%	$1.30Mn
10	DCF Advisers, LLC	0001802493	461,585	1.08%	▲133,782	+40.81%	$1.18Mn
11	Truffle Hound Capital, LLC	0001595862	420,000	0.98%	▲420,000	0.00%	$1.07Mn
12	GEODE CAPITAL MANAGEMENT, LLC	0001214717	399,518	0.93%	▼401,713	-50.14%	$1.02Mn
13	Round Rock Advisors LLC	0001846991	378,979	0.88%	▲188,271	+98.72%	$966.40K
14	RBF Capital, LLC	0001134621	370,000	0.86%	▲370,000	0.00%	$943.50K
15	D. E. Shaw & Co., Inc.	0001009207	358,479	0.84%	▲76,651	+27.20%	$914.12K
16	GSA CAPITAL PARTNERS LLP	0001362033	347,700	0.81%	▲58,542	+20.25%	$887
17	JACOBS LEVY EQUITY MANAGEMENT, INC	0000884414	328,988	0.77%	▼22,200	-6.32%	$838.92K
18	Marex Group Ltd	0001997464	260,848	0.61%	▲200,848	+334.75%	$665.16K
19	TWO SIGMA INVESTMENTS, LP	0001179392	251,777	0.59%	▲223,077	+777.27%	$642.03K
20	Bank Of America Corp /De/	0000070858	231,490	0.54%	▲27,720	+13.60%	$590.30K

Showing 1 to 20 of 99 holders