Arq (ARQ)
Arq on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as miscellaneous chemical products.
445K
Short interest
settlement 2026-10-15
2.2
Days to cover
-0.1 days vs prior
48.2%
Short share of volume
2026-11-02
45
Fails to deliver
settlement 2026-10-09
Wed 4 Nov
Next earnings
estimated date
$56K
Insider flow, 90 days
6 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in ARQ is 444,926 shares, down 21,285 shares over the last month. Over the last 48 readings it ranged from 398,123 shares (31 July 2026) to 1,959,684 shares (31 March 2026). The latest reading sits at the bottom of that range. At the reported average volume of 202K shares a day that is 2.2 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/arq" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 444,926 | -10.7% | 201,751 | 2.21 |
| 2026-09-30 | 497,934 | +6.8% | 217,227 | 2.29 |
| 2026-09-15 | 466,211 | -2.8% | 247,225 | 1.89 |
| 2026-08-31 | 479,713 | +9.8% | 180,144 | 2.66 |
| 2026-08-14 | 437,030 | +9.8% | 284,201 | 1.54 |
| 2026-07-31 | 398,123 | -16.2% | 221,111 | 1.80 |
| 2026-07-15 | 475,028 | -15.7% | 221,765 | 2.14 |
| 2026-06-30 | 563,360 | -60.5% | 714,502 | 1.00 |
| 2026-06-15 | 1,426,113 | -15.9% | 279,525 | 5.10 |
| 2026-05-29 | 1,696,041 | +2.7% | 228,717 | 7.42 |
| 2026-05-15 | 1,651,768 | +1.1% | 384,684 | 4.29 |
| 2026-04-30 | 1,634,313 | +6.9% | 269,172 | 6.07 |
| 2026-04-15 | 1,528,529 | -22.0% | 523,391 | 2.92 |
| 2026-03-31 | 1,959,684 | +6.7% | 929,967 | 2.11 |
| 2026-03-13 | 1,836,275 | +18.6% | 2,602,473 | 1.00 |
| 2026-02-27 | 1,547,576 | +3.7% | 223,344 | 6.93 |
| 2026-02-13 | 1,491,872 | +9.8% | 320,126 | 4.66 |
| 2026-01-30 | 1,358,151 | -4.8% | 285,459 | 4.76 |
| 2026-01-15 | 1,426,761 | +13.8% | 308,484 | 4.63 |
| 2025-12-31 | 1,253,313 | -6.7% | 446,306 | 2.81 |
| 2025-12-15 | 1,343,748 | +8.1% | 404,715 | 3.32 |
| 2025-11-28 | 1,242,744 | -15.9% | 486,616 | 2.55 |
| 2025-11-14 | 1,477,275 | +3.2% | 729,609 | 2.02 |
| 2025-10-31 | 1,431,446 | +1.7% | 152,829 | 9.37 |
| 2025-10-15 | 1,407,084 | +2.5% | 220,398 | 6.38 |
| 2025-09-30 | 1,372,170 | -6.7% | 351,822 | 3.90 |
| 2025-09-15 | 1,470,712 | -4.7% | 233,944 | 6.29 |
| 2025-08-29 | 1,542,626 | -16.8% | 279,257 | 5.52 |
| 2025-08-15 | 1,854,760 | +5.5% | 410,682 | 4.52 |
| 2025-07-31 | 1,757,775 | +3.8% | 172,486 | 10.19 |
| 2025-07-15 | 1,693,434 | +4.2% | 221,457 | 7.65 |
| 2025-06-30 | 1,625,586 | +8.8% | 215,663 | 7.54 |
| 2025-06-13 | 1,493,431 | +9.3% | 174,604 | 8.55 |
| 2025-05-30 | 1,366,857 | +13.5% | 292,639 | 4.67 |
| 2025-05-15 | 1,204,367 | +1.8% | 261,924 | 4.60 |
| 2025-04-30 | 1,183,506 | +1.1% | 177,122 | 6.68 |
| 2025-04-15 | 1,170,024 | -15.8% | 283,233 | 4.13 |
| 2025-03-31 | 1,389,379 | +8.5% | 291,215 | 4.77 |
| 2025-03-14 | 1,281,031 | +15.6% | 378,357 | 3.39 |
| 2025-02-28 | 1,108,455 | +3.4% | 205,973 | 5.38 |
| 2025-02-14 | 1,072,371 | -1.4% | 230,382 | 4.65 |
| 2025-01-31 | 1,087,544 | -3.8% | 200,789 | 5.42 |
| 2025-01-15 | 1,130,738 | +27.7% | 285,005 | 3.97 |
| 2024-12-31 | 885,306 | +22.1% | 343,368 | 2.58 |
| 2024-12-13 | 725,128 | -12.3% | 180,887 | 4.01 |
| 2024-11-29 | 826,401 | -25.1% | 290,551 | 2.84 |
| 2024-11-15 | 1,103,090 | -7.2% | 313,130 | 3.52 |
| 2024-10-31 | 1,188,561 | +1.0% | 157,128 | 7.56 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of ARQ volume is 48.2%, up 14.4 points over the last five sessions. Over the last 30 readings it ranged from 20.3% (12 October 2026) to 64.6% (28 September 2026). The latest reading is 2.5 points above the 30-session average of 45.7%, on 83K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 40K | 83K | 48.2% | 2,903 |
| 2026-10-30 | 57K | 111K | 51.4% | 0 |
| 2026-10-29 | 55K | 110K | 49.5% | 13 |
| 2026-10-28 | 42K | 110K | 38.6% | 0 |
| 2026-10-27 | 37K | 78K | 47.2% | 0 |
| 2026-10-26 | 29K | 86K | 33.8% | 0 |
| 2026-10-23 | 131K | 219K | 59.9% | 0 |
| 2026-10-22 | 30K | 96K | 31.1% | 140 |
| 2026-10-21 | 34K | 112K | 30.4% | 0 |
| 2026-10-20 | 52K | 155K | 33.6% | 0 |
| 2026-10-19 | 102K | 197K | 51.7% | 0 |
| 2026-10-16 | 63K | 161K | 39.4% | 300 |
| 2026-10-15 | 73K | 171K | 43.0% | 655 |
| 2026-10-14 | 73K | 124K | 59.0% | 0 |
| 2026-10-13 | 40K | 127K | 31.4% | 51 |
| 2026-10-12 | 5K | 25K | 20.3% | 2 |
| 2026-10-09 | 56K | 132K | 42.3% | 257 |
| 2026-10-08 | 18K | 60K | 30.7% | 15 |
| 2026-10-07 | 41K | 95K | 43.3% | 0 |
| 2026-10-06 | 28K | 79K | 35.8% | 0 |
| 2026-10-05 | 53K | 107K | 49.1% | 333 |
| 2026-10-02 | 73K | 114K | 64.2% | 0 |
| 2026-10-01 | 45K | 76K | 59.5% | 0 |
| 2026-09-30 | 105K | 185K | 56.8% | 0 |
| 2026-09-29 | 78K | 152K | 51.6% | 176 |
| 2026-09-28 | 134K | 207K | 64.6% | 0 |
| 2026-09-25 | 39K | 90K | 44.1% | 0 |
| 2026-09-24 | 78K | 121K | 64.4% | 0 |
| 2026-09-23 | 29K | 49K | 59.0% | 25 |
| 2026-09-22 | 31K | 81K | 38.5% | 39 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in ARQ is 45 shares, down 2,778 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (9 September 2026) to 93,431 shares (15 April 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 45 | $2.11 | $95 |
| 2026-10-06 | 2,823 | $2.02 | $6K |
| 2026-09-28 | 58 | $2.02 | $117 |
| 2026-09-09 | 1 | $2.21 | $2 |
| 2026-08-21 | 107 | $2.26 | $242 |
| 2026-08-20 | 1,963 | $2.17 | $4K |
| 2026-08-06 | 2,777 | $2.05 | $6K |
| 2026-07-14 | 20,056 | $2.22 | $45K |
| 2026-07-01 | 347 | $2.55 | $885 |
| 2026-06-29 | 461 | $2.34 | $1K |
| 2026-06-26 | 1,365 | $2.28 | $3K |
| 2026-06-24 | 1,671 | $2.46 | $4K |
| 2026-06-23 | 2,819 | $2.58 | $7K |
| 2026-06-18 | 983 | $2.73 | $3K |
| 2026-06-15 | 1,530 | $2.68 | $4K |
| 2026-06-10 | 54 | $2.69 | $145 |
| 2026-06-08 | 165 | $2.60 | $429 |
| 2026-06-04 | 970 | $2.60 | $3K |
| 2026-05-29 | 18 | $2.75 | $50 |
| 2026-05-28 | 2,133 | $2.68 | $6K |
| 2026-05-14 | 5,879 | $2.55 | $15K |
| 2026-05-11 | 11 | $2.64 | $29 |
| 2026-04-27 | 1,629 | $2.29 | $4K |
| 2026-04-20 | 2 | $2.23 | $4 |
| 2026-04-15 | 93,431 | $2.24 | $209K |
| 2026-04-14 | 130 | $2.12 | $276 |
| 2026-04-01 | 2,427 | $2.56 | $6K |
| 2026-03-24 | 19,000 | $2.27 | $43K |
| 2026-03-23 | 175 | $1.99 | $348 |
| 2026-03-19 | 10,570 | $1.90 | $20K |
Insider trades
SEC Form 4, newest first. JSONInsiders at ARQ reported 6 open-market buys worth $56K in the last 90 days and no open-market sells. Latest filing: Steinmetz Shimon (Chief Financial Officer) on 2026-09-08.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-08 | Steinmetz Shimon | Chief Financial Officer | Buy | 2K | $2.34 | $4K | 15K |
| 2026-09-08 | Steinmetz Shimon | Chief Financial Officer | Buy | 1K | $2.34 | $3K | 353K |
| 2026-09-04 | Steinmetz Shimon | Chief Financial Officer | Buy | 4K | $2.27 | $10K | 13K |
| 2026-09-04 | Steinmetz Shimon | Chief Financial Officer | Buy | 1K | $2.29 | $3K | 352K |
| 2026-09-03 | Steinmetz Shimon | Chief Financial Officer | Buy | 9K | $2.23 | $20K | 9K |
| 2026-09-03 | Steinmetz Shimon | Chief Financial Officer | Buy | 8K | $2.22 | $17K | 351K |
| 2026-09-01 | Owino Peter Oluoch | Chief Accounting Officer | Grant | 61K | $0.00 | $0 | 161K |
| 2026-09-01 | Owino Peter Oluoch | Chief Accounting Officer | Grant | 100K | $0.00 | $0 | 100K |
| 2026-08-14 | Wong Joseph M | Chief Technology Officer | Grant | 55K | $0.00 | $0 | 507K |
| 2026-08-01 | Steinmetz Shimon | Chief Financial Officer | Grant | 93K | $0.00 | $0 | 343K |
| 2026-08-01 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Grant | 61K | $0.00 | $0 | 156K |
| 2026-08-01 | Wong Joseph M | Chief Technology Officer | Grant | 61K | $0.00 | $0 | 452K |
| 2026-07-31 | Steinmetz Shimon | Chief Financial Officer | Grant | 250K | $0.00 | $0 | 250K |
| 2026-07-01 | EICHER CAROL S | Director | Grant | 25K | $0.00 | $0 | 199K |
| 2026-07-01 | Blank Jeremy | Director | Grant | 49K | $0.00 | $0 | 128K |
| 2026-07-01 | Bergman Laurie | Director | Grant | 25K | $0.00 | $0 | 76K |
| 2026-07-01 | McIntyre Julian Alexander | Director | Grant | 49K | $0.00 | $0 | 108K |
| 2026-07-01 | Campbell-Breeden Richard | Director | Grant | 49K | $0.00 | $0 | 136K |
| 2026-05-04 | Voncannon Jay Loring | Chief Financial Officer | Sell | 17K | $2.27 | $38K | 48K |
| 2026-03-23 | Campbell-Breeden Richard | Director | Buy | 150K | $2.21 | $332K | 405K |
| 2026-03-23 | Wong Joseph M | Chief Technology Officer | Tax withholding | 10K | $2.27 | $23K | 391K |
| 2026-03-23 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Tax withholding | 8K | $2.27 | $18K | 94K |
| 2026-03-23 | Hansen Stacia | Chief Accounting Officer | Tax withholding | 9K | $2.27 | $20K | 64K |
| 2026-03-23 | Rasmus Robert E. | Chief Executive Officer | Tax withholding | 845 | $2.27 | $2K | 480K |
| 2026-03-17 | Wong Joseph M | Chief Technology Officer | Buy | 10K | $1.89 | $19K | 401K |
| 2026-03-16 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Buy | 1K | $1.92 | $2K | 102K |
| 2026-03-13 | EICHER CAROL S | Director | Buy | 78K | $1.95 | $151K | 174K |
| 2026-03-12 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Buy | 1K | $1.92 | $2K | 101K |
| 2026-02-27 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Exercise or conversion | 28K | price not stated in the filing | not stated | 111K |
| 2026-02-27 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Tax withholding | 10K | $3.51 | $36K | 100K |
| 2026-02-27 | Williamson Jeremy | Chief Operating Officer | Tax withholding | 18K | $3.51 | $64K | 186K |
| 2026-02-27 | Williamson Jeremy | Chief Operating Officer | Exercise or conversion | 69K | price not stated in the filing | not stated | 204K |
| 2026-02-27 | Wong Joseph M | Chief Technology Officer | Exercise or conversion | 40K | price not stated in the filing | not stated | 408K |
| 2026-02-27 | Wong Joseph M | Chief Technology Officer | Tax withholding | 17K | $3.51 | $61K | 391K |
| 2025-11-11 | Voncannon Jay Loring | Chief Financial Officer | Buy | 6K | $3.55 | $21K | 65K |
| 2025-11-11 | Campbell-Breeden Richard | Director | Buy | 29K | $3.54 | $101K | 255K |
| 2025-11-10 | Rasmus Robert E. | Chief Executive Officer | Buy | 50K | $3.79 | $190K | 71K |
| 2025-11-10 | Voncannon Jay Loring | Chief Financial Officer | Buy | 9K | $3.74 | $34K | 59K |
| 2025-09-25 | McIntyre Julian Alexander | Director | Other transaction | 30K | $0.00 | $0 | 3.2M |
| 2025-09-18 | Williamson Jeremy | Chief Operating Officer | Tax withholding | 2K | $7.00 | $14K | 135K |
| 2025-08-04 | Wong Joseph M | Chief Technology Officer | Sell | 3K | $5.20 | $16K | 368K |
| 2025-08-04 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Sell | 3K | $5.20 | $13K | 82K |
| 2025-08-04 | Hansen Stacia | Chief Accounting Officer | Sell | 3K | $5.20 | $14K | 73K |
| 2025-08-04 | Williamson Jeremy | Chief Operating Officer | Sell | 2K | $5.20 | $9K | 137K |
| 2025-07-01 | McIntyre Julian Alexander | Director | Grant | 22K | $0.00 | $0 | 59K |
| 2025-07-01 | Campbell-Breeden Richard | Director | Grant | 29K | $0.00 | $0 | 87K |
| 2025-07-01 | Blank Jeremy | Director | Grant | 29K | $0.00 | $0 | 79K |
| 2025-07-01 | EICHER CAROL S | Director | Grant | 15K | $0.00 | $0 | 97K |
| 2025-07-01 | Bergman Laurie | Director | Grant | 15K | $0.00 | $0 | 52K |
| 2025-05-23 | Campbell-Breeden Richard | Director | Buy | 75K | $4.10 | $308K | 226K |
| 2025-05-23 | Blank Jeremy | Director | Buy | 50K | $4.10 | $205K | 375K |
| 2025-05-23 | Rasmus Robert E. | Chief Executive Officer | Buy | 25K | $4.10 | $103K | 481K |
| 2025-05-16 | Wong Joseph M | Chief Technology Officer | Buy | 16K | $4.61 | $74K | 371K |
| 2025-05-14 | Rasmus Robert E. | Chief Executive Officer | Buy | 13K | $3.93 | $49K | 21K |
| 2025-05-13 | Rasmus Robert E. | Chief Executive Officer | Buy | 3K | $4.00 | $12K | 8K |
| 2025-05-12 | Rasmus Robert E. | Chief Executive Officer | Buy | 5K | $4.00 | $19K | 5K |
| 2025-05-12 | Williamson Jeremy | Chief Operating Officer | Buy | 400 | $4.02 | $2K | 139K |
| 2025-05-09 | Rasmus Robert E. | Chief Executive Officer | Buy | 582 | $3.60 | $2K | 582 |
| 2025-04-02 | Voncannon Jay Loring | Chief Financial Officer | Grant | 50K | $0.00 | $0 | 50K |
| 2025-03-24 | Wong Joseph M | Chief Technology Officer | Sell | 7K | $4.68 | $31K | 355K |
| 2025-03-24 | Williamson Jeremy | Chief Operating Officer | Sell | 5K | $4.68 | $24K | 139K |
| 2025-03-24 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Sell | 5K | $4.68 | $24K | 85K |
| 2025-03-24 | Hansen Stacia | Chief Accounting Officer | Sell | 4K | $4.68 | $17K | 76K |
| 2025-03-23 | Wong Joseph M | Chief Technology Officer | Grant | 26K | $0.00 | $0 | 361K |
| 2025-03-23 | Williamson Jeremy | Chief Operating Officer | Grant | 28K | $0.00 | $0 | 144K |
| 2025-03-23 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Grant | 24K | $0.00 | $0 | 90K |
| 2025-03-23 | Hansen Stacia | Chief Accounting Officer | Grant | 22K | $0.00 | $0 | 79K |
| 2025-03-23 | Rasmus Robert E. | Chief Executive Officer | Grant | 5K | $0.00 | $0 | 456K |
| 2025-02-12 | Wong Joseph M | Chief Technology Officer | Tax withholding | 7K | $5.93 | $41K | 335K |
| 2025-02-12 | Wong Joseph M | Chief Technology Officer | Exercise or conversion | 15K | price not stated in the filing | not stated | 342K |
| 2024-11-26 | Campbell-Breeden Richard | Director | Other transaction | 9K | price not stated in the filing | not stated | 151K |
| 2024-11-26 | Campbell-Breeden Richard | Director | Other transaction | 708 | price not stated in the filing | not stated | 58K |
| 2024-11-26 | McIntyre Julian Alexander | Director | Other transaction | 4K | price not stated in the filing | not stated | 43K |
| 2024-11-26 | McIntyre Julian Alexander | Director | Other transaction | 1K | price not stated in the filing | not stated | 22K |
| 2024-11-26 | McIntyre Julian Alexander | Director | Other transaction | 33K | price not stated in the filing | not stated | 382K |
| 2024-11-26 | Blank Jeremy | Director | Other transaction | 132K | price not stated in the filing | not stated | 2.0M |
| 2024-11-20 | McIntyre Julian Alexander | Director | Other transaction | 138K | price not stated in the filing | not stated | 2.8M |
| 2024-11-20 | Blank Jeremy | Director | Other transaction | 4K | price not stated in the filing | not stated | 47K |
| 2024-09-23 | Rasmus Robert E. | Chief Executive Officer | Buy | 25K | $5.25 | $131K | 451K |
| 2024-09-18 | Williamson Jeremy | Chief Operating Officer | Tax withholding | 2K | $6.11 | $12K | 116K |
| 2024-08-01 | Rasmus Robert E. | Chief Executive Officer | Grant | 4K | $0.00 | $0 | 426K |
| 2024-08-01 | Wong Joseph M | Chief Technology Officer | Grant | 22K | $0.00 | $0 | 327K |
| 2024-08-01 | Hansen Stacia | Chief Accounting Officer | Grant | 19K | $0.00 | $0 | 57K |
| 2024-08-01 | Williamson Jeremy | Chief Operating Officer | Grant | 22K | $0.00 | $0 | 118K |
| 2024-08-01 | Smith Claiborne Benson | Gen Counsel, Corp Secretary | Grant | 20K | $0.00 | $0 | 66K |
| 2024-07-23 | Wong Joseph M | Chief Technology Officer | Tax withholding | 39K | $6.57 | $255K | 306K |
| 2024-07-23 | Wong Joseph M | Chief Technology Officer | Grant | 100K | $0.00 | $0 | 345K |
| 2024-07-01 | Alta Fundamental Advisers SP LLC | Director | Grant | 13K | $0.00 | $0 | 2.0M |
| 2024-07-01 | Bergman Laurie | Director | Grant | 13K | $0.00 | $0 | 37K |
| 2024-07-01 | Wells Louis Spencer | Director | Grant | 13K | $0.00 | $0 | 103K |
| 2024-07-01 | EICHER CAROL S | Director | Grant | 13K | $0.00 | $0 | 82K |
| 2024-07-01 | Campbell-Breeden Richard | Director | Grant | 25K | $0.00 | $0 | 57K |
| 2024-07-01 | Blank Jeremy | Director | Grant | 25K | $0.00 | $0 | 50K |
| 2024-07-01 | McIntyre Julian Alexander | Director | Grant | 13K | $0.00 | $0 | 37K |
| 2024-03-29 | Blank Jeremy | Director | Exercise or conversion | 325K | $0.01 | $3K | 325K |
| 2024-03-23 | Wong Joseph M | Chief Technology Officer | Tax withholding | 7K | $6.24 | $46K | 245K |
| 2024-03-23 | Hansen Stacia | Chief Accounting Officer | Tax withholding | 5K | $6.24 | $30K | 38K |
| 2024-03-23 | Williamson Jeremy | Chief Operating Officer | Tax withholding | 5K | $6.24 | $31K | 91K |
| 2024-03-18 | Williamson Jeremy | Chief Operating Officer | Tax withholding | 6K | $5.81 | $35K | 96K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of ARQ in its latest filing, on Schedule 13G (passive). The holder is Daniel Kaufman at 5.1% of the class (2,191,278 shares), filed 2026-03-12 for an event on 2026-03-11.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-27 | 13G/Ano. 3 | Orin Hirschmanparent holding company, individual | 0 | 0.0% | 2026-03-31 |
| 2026-04-27 | 13G/Ano. 3 | AIGH Capital Management LLCinvestment adviser, other entity | 0 | 0.0% | 2026-03-31 |
| 2026-03-12 | 13G | Daniel Kaufmanindividual | 2.2M | 5.1% | 2026-03-11 |
13F holders
Tracked managers holding ARQ at their latest 13F. JSON7 of the 30 tracked managers held ARQ at their latest 13F, $8.3M in total at quarter-end prices. AQR Capital Management is the largest at $4.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 1.8M | $4.6M | 0.00% | +728K |
| Renaissance Technologies | 2026-06-30 | 598K | $1.5M | 0.00% | +187K |
| D. E. Shaw & Co. | 2026-06-30 | 358K | $914K | 0.00% | +77K |
| Two Sigma Investments | 2026-06-30 | 252K | $642K | 0.00% | +223K |
| Citadel Advisors | 2026-06-30 | 163K | $416K | 0.00% | new |
| Point72 Asset Management | 2026-06-30 | 58K | $147K | 0.00% | new |
| Millennium Management | 2026-06-30 | 19K | $48K | 0.00% | -27K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Arq in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Arq (ARQ), SEC CIK 1515156, listed on Nasdaq, classified by the SEC as miscellaneous chemical products. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-27.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-10.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-08.JSON and CSV
- Company record
- EDGAR filing index for CIK 1515156Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of ARQ is sold short?
444,926 shares were held short at the 2026-10-15 settlement, 2.2 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is ARQ's daily short volume?
On 2026-11-02, 40,026 of the 83,036 ARQ shares reported to FINRA were sold short, 48.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ARQ have fails to deliver?
The SEC's latest file shows 45 ARQ shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are ARQ insiders buying or selling?
Insiders at ARQ reported 6 open-market buys worth $56K in the last 90 days and no open-market sells. Latest filing: Steinmetz Shimon (Chief Financial Officer) on 2026-09-08.
Who owns 5% or more of ARQ?
1 holder reports 5% or more of ARQ in its latest filing, on Schedule 13G (passive). The holder is Daniel Kaufman at 5.1% of the class (2,191,278 shares), filed 2026-03-12 for an event on 2026-03-11.
Which tracked 13F managers own ARQ?
7 of the 30 tracked 13F managers held ARQ shares at their latest filing, $8.3M in all. The largest: Cliff Asness's AQR Capital Management (1.8M shares, $4.6M), Renaissance Technologies (598K shares, $1.5M), D. E. Shaw & Co. (358K shares, $914K), Two Sigma Investments (252K shares, $642K), Ken Griffin's Citadel Advisors (163K shares, $416K), Steve Cohen's Point72 Asset Management (58K shares, $147K). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.