Citadel Advisors
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Citadel Advisors’s Arq ARQ Stock Holding History

Citadel Advisors’s Portfolio ARQ Stock Details ARQ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-21,600
Closed -$90.1K – 15471
2025
Q1 		$90.1K Buy
21,600
+20,000
+1,250% +$113K ﹤0.01% 11613
2024
Q4 		$12.1K Sell
1,600
-7,900
-83% -$52K ﹤0.01% 13514
2024
Q3 		$55.8K Sell
9,500
-10,600
-53% -$64.6K ﹤0.01% 11790
2024
Q2 		$122K Buy
20,100
+7,700
+62% +$53.1K ﹤0.01% 10638
2024
Q1 		$80.4K Buy
12,400
+10,900
+727% +$40.7K ﹤0.01% 11648
2023
Q4 		$4.47K Buy
+1,500
New +$3.35K ﹤0.01% 13503
2023
Q3 		– Sell
-400
Closed -$744 – 15270
2023
Q2 		$744 Buy
400
+200
+100% +$331 ﹤0.01% 14053
2023
Q1 		$396 Sell
200
-2,200
-92% -$5.97K ﹤0.01% 14503
2022
Q4 		$5.83K Buy
+2,400
New +$6.53K ﹤0.01% 13961
2022
Q2 		– Sell
-20,900
Closed -$130K – 14279
2022
Q1 		$130K Buy
20,900
+2,800
+15% +$17.8K ﹤0.01% 12013
2021
Q4 		$120K Buy
+18,100
New +$121K ﹤0.01% 12530
2015
Q1 		– Sell
-4,700
Closed -$107K – 8913
2014
Q4 		$107K Buy
4,700
+2,500
+114% +$51.3K ﹤0.01% 6584
2014
Q3 		$47K Buy
2,200
+900
+69% +$19.6K ﹤0.01% 6943
2014
Q2 		$30K Buy
+1,300
New +$28.9K ﹤0.01% 7079

Other funds holding ARQ

RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
PLC
Peapod Lane Capital Bedford Hills, New York $148M AUM 89.92% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DA
DCF Advisers Greenwich, Connecticut $566M AUM 197.74% 1-Year Est. Return

Citadel Advisors's ARQ Position: Q2 2026 in Review

Citadel Advisors opened a new position in Arq (ARQ) in Q2 2026: 163,201 shares worth $416K. The stake represents ﹤0.01% of the portfolio and ranks #10321 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in ARQ as recently as Q4 2025.

Citadel Advisors first reported a position in ARQ in Q2 2013 and has held it in 22 quarters since. The position peaked at $1.45M in Q3 2025. 98 funds tracked by Wall St. Rank hold ARQ as of Q2 2026.

  • Citadel Advisors held 163,201 shares of Arq worth $416K as of Q2 2026.
  • Arq was a new Citadel Advisors position in Q2 2026.
  • Arq made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #10321 holding.
  • Citadel Advisors first reported a position in Arq in Q2 2013 and has held it in 22 quarters since.
  • Citadel Advisors's Arq position peaked at $1.45M in Q3 2025.
  • 98 funds tracked by Wall St. Rank held Arq as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.