$ARQQ: Arqit Quantum Inc. - Ordinary Shares
2025-04-10 ARQQ 2025-04-10 23:00:54 0.00 0.00 7.00% 2025-04-11 ARQQ 2025-04-11 04:01:20 0.00 14.50 7.00% ARQQ 2025-04-11 05:00:55 14.98 12.90 0.97% ARQQ 2025-04-11 06:01:21 14.98 14.50 0.97% ARQQ 2025-04-11 08:01:14 14.70 14.50 2.31% ARQQ 2025-04-11 09:01:01 15.30 14.51 4.69% ARQQ 2025-04-11 10:01:25 14.79 14.35 0.22% ARQQ 2025-04-11 11:00:58 14.59 14.20 0.00% ARQQ 2025-04-11 12:01:23 14.50 14.19 0.15% ARQQ 2025-04-11 13:00:56 14.62 14.44 0.97% ARQQ 2025-04-11 14:01:20 14.90 14.70 2.83% ARQQ 2025-04-11 15:00:55 14.85 14.69 2.83% ARQQ 2025-04-11 16:01:19 15.25 14.81 4.69% ARQQ 2025-04-11 17:00:50 15.25 14.40 1.53% ARQQ 2025-04-11 19:00:52 15.30 14.40 6.12% ARQQ 2025-04-11 20:01:16 0.00 0.00 5.64% 2025-04-14 ARQQ 2025-04-14 05:00:54 17.00 15.00 5.64% ARQQ 2025-04-14 06:01:18 15.76 15.00 3.69% ARQQ 2025-04-14 07:00:49 15.80 15.20 2.71% ARQQ 2025-04-14 08:01:20 15.71 15.25 5.01% ARQQ 2025-04-14 09:00:56 16.39 15.40 6.96% ARQQ 2025-04-14 10:01:21 15.39 15.31 2.57% ARQQ 2025-04-14 11:00:57 15.49 15.31 2.85% ARQQ 2025-04-14 12:01:18 14.70 14.62 -2.37% ARQQ 2025-04-14 13:00:57 14.67 14.44 -3.06% ARQQ 2025-04-14 14:01:16 14.54 14.40 -3.41% ARQQ 2025-04-14 15:00:55 14.85 14.71 -1.81% ARQQ 2025-04-14 16:01:13 15.00 14.50 -0.14% ARQQ 2025-04-14 17:00:53 15.45 14.55 -0.13% ARQQ 2025-04-14 18:01:16 15.40 14.28 -0.13% ARQQ 2025-04-14 19:00:53 15.40 14.28 -1.60% ARQQ 2025-04-14 20:01:10 0.00 0.00 -1.60% 2025-04-15 ARQQ 2025-04-15 05:00:51 16.71 13.14 -1.60% ARQQ 2025-04-15 06:01:17 16.71 13.14 0.13% ARQQ 2025-04-15 07:00:59 16.39 15.00 0.33% ARQQ 2025-04-15 08:01:21 15.70 15.02 0.27% ARQQ 2025-04-15 09:00:53 15.70 15.02 0.40% ARQQ 2025-04-15 10:01:21 15.10 14.90 0.07% ARQQ 2025-04-15 11:00:59 15.00 14.82 -0.47% ARQQ 2025-04-15 12:01:18 14.99 14.85 -0.33% ARQQ 2025-04-15 13:00:56 14.87 14.71 -1.60% ARQQ 2025-04-15 14:01:15 14.65 14.56 -2.80% ARQQ 2025-04-15 15:00:53 14.87 14.68 -1.80% ARQQ 2025-04-15 16:01:13 14.81 14.60 -1.27% ARQQ 2025-04-15 17:01:00 15.13 14.60 -2.27% ARQQ 2025-04-15 18:01:12 15.80 14.10 -2.54% ARQQ 2025-04-15 20:01:11 0.00 0.00 -2.54% 2025-04-16 ARQQ 2025-04-16 05:00:50 15.26 13.90 -1.54% ARQQ 2025-04-16 07:00:55 15.26 14.56 -1.54% ARQQ 2025-04-16 08:01:15 15.26 14.22 -1.54% ARQQ 2025-04-16 10:01:18 13.99 13.83 -6.48% ARQQ 2025-04-16 11:00:53 14.29 14.10 -3.94% ARQQ 2025-04-16 12:01:16 14.50 14.31 -2.74% ARQQ 2025-04-16 13:00:48 14.44 14.31 -2.74% ARQQ 2025-04-16 14:01:10 14.20 14.00 -4.81% ARQQ 2025-04-16 15:00:53 14.20 14.07 -4.67% ARQQ 2025-04-16 16:01:11 14.46 14.42 -2.47% ARQQ 2025-04-16 17:00:52 14.88 14.42 -2.23% ARQQ 2025-04-16 18:01:11 14.88 13.90 -2.50% ARQQ 2025-04-16 20:01:13 0.00 0.00 -2.50% 2025-04-17 ARQQ 2025-04-17 05:00:54 17.12 13.17 0.00% ARQQ 2025-04-17 06:01:17 16.58 14.40 0.00% ARQQ 2025-04-17 07:00:54 14.88 14.48 0.61% ARQQ 2025-04-17 08:01:11 15.38 14.50 0.88% ARQQ 2025-04-17 09:00:51 14.80 14.50 0.88% ARQQ 2025-04-17 10:01:17 15.07 14.86 3.52% ARQQ 2025-04-17 11:00:52 14.75 14.63 2.10% ARQQ 2025-04-17 12:01:12 14.87 14.67 2.57% ARQQ 2025-04-17 13:00:50 14.86 14.70 2.91% ARQQ 2025-04-17 14:01:12 15.01 14.95 3.85% ARQQ 2025-04-17 15:00:47 15.00 14.88 3.38% ARQQ 2025-04-17 16:01:13 15.10 14.82 3.58% ARQQ 2025-04-17 17:00:50 14.97 14.82 3.68% ARQQ 2025-04-17 18:01:08 14.97 14.59 3.68% ARQQ 2025-04-17 19:00:52 14.97 14.59 3.81% ARQQ 2025-04-17 20:01:13 0.00 0.00 3.81% 2025-04-21 ARQQ 2025-04-21 05:00:51 16.60 14.50 -0.69% ARQQ 2025-04-21 06:01:15 16.58 13.33 -2.43% ARQQ 2025-04-21 07:00:45 14.95 14.40 -2.43% ARQQ 2025-04-21 08:01:20 14.95 13.67 -3.05% ARQQ 2025-04-21 09:00:53 14.75 13.67 -0.21% ARQQ 2025-04-21 10:01:17 14.49 14.24 -4.02% ARQQ 2025-04-21 11:00:56 14.30 14.16 -5.20% ARQQ 2025-04-21 12:01:16 13.80 13.66 -8.88% ARQQ 2025-04-21 13:00:53 13.72 13.59 -9.36% ARQQ 2025-04-21 14:01:17 13.65 13.50 -9.92% ARQQ 2025-04-21 15:00:57 13.59 13.40 -10.68% ARQQ 2025-04-21 16:01:17 13.86 13.26 -11.10% ARQQ 2025-04-21 17:00:51 13.67 13.34 -9.70% ARQQ 2025-04-21 18:01:14 13.67 13.17 -11.51% ARQQ 2025-04-21 20:01:12 0.00 0.00 -11.84% 2025-04-22 ARQQ 2025-04-22 05:00:55 14.55 13.34 -11.84% ARQQ 2025-04-22 06:01:16 14.28 13.65 6.22% ARQQ 2025-04-22 07:00:57 14.05 13.65 3.41% ARQQ 2025-04-22 08:01:21 13.85 13.17 2.41% ARQQ 2025-04-22 10:01:19 13.44 13.38 -0.13% ARQQ 2025-04-22 11:00:56 13.75 13.56 2.07% ARQQ 2025-04-22 12:01:17 13.76 13.46 1.07% ARQQ 2025-04-22 13:01:01 13.94 13.86 3.48% ARQQ 2025-04-22 14:01:20 13.80 13.69 2.88% ARQQ 2025-04-22 15:00:55 13.80 13.78 3.14% ARQQ 2025-04-22 16:01:11 13.94 13.62 2.07% ARQQ 2025-04-22 17:00:55 13.94 13.46 2.10% ARQQ 2025-04-22 18:01:17 13.94 13.32 4.42% ARQQ 2025-04-22 19:01:02 13.97 13.32 4.42% ARQQ 2025-04-22 20:01:23 0.00 0.00 4.95% 2025-04-23 ARQQ 2025-04-23 05:01:00 16.00 13.65 4.95% ARQQ 2025-04-23 06:01:25 16.00 14.00 4.95% ARQQ 2025-04-23 07:00:59 14.49 14.21 5.40% ARQQ 2025-04-23 08:01:18 14.77 14.30 4.20% ARQQ 2025-04-23 09:00:58 14.77 14.22 4.57% ARQQ 2025-04-23 10:01:23 14.80 14.62 8.25% ARQQ 2025-04-23 11:00:54 14.90 14.72 8.32% ARQQ 2025-04-23 12:01:24 14.59 14.50 6.75% ARQQ 2025-04-23 13:00:59 14.55 14.34 6.37% ARQQ 2025-04-23 14:01:24 14.67 14.61 7.50% ARQQ 2025-04-23 15:01:00 14.67 14.53 6.75% ARQQ 2025-04-23 16:01:26 14.62 14.21 6.75% ARQQ 2025-04-23 17:00:53 14.55 14.21 6.59% ARQQ 2025-04-23 18:01:09 14.62 13.65 5.79% ARQQ 2025-04-23 20:01:15 0.00 0.00 5.79% 2025-04-24 ARQQ 2025-04-24 05:00:50 16.27 11.98 5.79% ARQQ 2025-04-24 06:01:20 16.27 13.50 5.79% ARQQ 2025-04-24 07:00:57 15.38 14.55 5.79% ARQQ 2025-04-24 08:01:18 15.38 14.00 0.37% ARQQ 2025-04-24 10:01:20 15.10 14.94 3.22% ARQQ 2025-04-24 11:01:00 15.09 14.91 3.37% ARQQ 2025-04-24 12:01:18 15.13 15.01 3.66% ARQQ 2025-04-24 13:00:57 14.99 14.95 3.00% ARQQ 2025-04-24 14:01:16 15.13 15.03 3.88% ARQQ 2025-04-24 15:00:55 15.20 15.09 4.18% ARQQ 2025-04-24 16:01:18 15.14 14.90 4.03% ARQQ 2025-04-24 17:01:04 15.14 15.04 3.92% ARQQ 2025-04-24 18:01:18 15.26 14.90 4.26% ARQQ 2025-04-24 19:00:51 15.38 14.90 4.74% ARQQ 2025-04-24 20:01:16 0.00 0.00 4.74% 2025-04-25 ARQQ 2025-04-25 05:00:55 17.25 14.00 4.74% ARQQ 2025-04-25 06:01:18 16.38 14.00 4.74% ARQQ 2025-04-25 07:01:00 15.20 14.55 0.00% ARQQ 2025-04-25 08:01:21 15.20 14.55 -0.48% ARQQ 2025-04-25 09:00:56 15.50 14.55 -0.82% ARQQ 2025-04-25 10:01:16 15.17 15.09 0.00% ARQQ 2025-04-25 11:00:55 14.91 14.78 -1.72% ARQQ 2025-04-25 12:01:14 14.89 14.80 -1.99% ARQQ 2025-04-25 13:00:52 15.33 15.13 0.55% ARQQ 2025-04-25 14:01:14 15.21 15.01 0.07% ARQQ 2025-04-25 15:00:53 15.33 15.10 0.41% ARQQ 2025-04-25 16:01:12 15.24 15.06 0.34% ARQQ 2025-04-25 17:00:52 15.33 15.06 0.33% ARQQ 2025-04-25 18:01:15 15.43 15.30 1.52% ARQQ 2025-04-25 19:00:55 15.30 15.06 1.32% ARQQ 2025-04-25 20:01:15 0.00 0.00 1.26% 2025-04-29 ARQQ 2025-04-29 11:07:24 16.04 15.95 4.69% ARQQ 2025-04-29 12:01:07 16.33 16.17 5.87% ARQQ 2025-04-29 13:01:23 16.33 16.19 6.73% ARQQ 2025-04-29 14:00:54 16.45 16.34 7.00% ARQQ 2025-04-29 15:01:27 16.75 16.60 8.78% ARQQ 2025-04-29 16:00:54 16.75 16.40 7.99% ARQQ 2025-04-29 17:01:14 16.68 16.17 7.99% ARQQ 2025-04-29 18:00:49 16.69 16.17 9.04% ARQQ 2025-04-29 19:01:16 16.60 16.50 8.65% ARQQ 2025-04-29 20:00:51 0.00 0.00 7.99% 2025-04-30 ARQQ 2025-04-30 05:01:18 16.88 15.40 2.24% ARQQ 2025-04-30 06:00:58 16.88 15.45 2.38% ARQQ 2025-04-30 07:01:13 16.96 16.00 2.90% ARQQ 2025-04-30 08:00:57 16.96 16.00 2.05% ARQQ 2025-04-30 09:01:16 16.91 16.00 0.33% ARQQ 2025-04-30 10:01:02 15.59 15.46 -6.86% ARQQ 2025-04-30 11:01:14 15.77 15.53 -5.61% ARQQ 2025-04-30 12:01:03 15.73 15.56 -5.68% ARQQ 2025-04-30 13:01:07 15.74 15.55 -5.68% ARQQ 2025-04-30 14:00:59 15.60 15.41 -7.06% ARQQ 2025-04-30 15:01:13 15.61 15.54 -6.34% ARQQ 2025-04-30 16:00:59 15.75 15.44 1.39% ARQQ 2025-04-30 17:01:06 15.88 15.60 -3.94% ARQQ 2025-04-30 18:00:57 16.39 15.60 -0.73% ARQQ 2025-04-30 19:01:09 17.00 16.00 -0.73% ARQQ 2025-04-30 20:01:04 0.00 0.00 -3.03% 2025-05-01 ARQQ 2025-05-01 04:06:46 24.80 6.62 -3.03% ARQQ 2025-05-01 05:00:53 16.50 15.62 5.76% ARQQ 2025-05-01 06:01:21 16.44 15.62 5.76% ARQQ 2025-05-01 07:00:52 16.44 16.11 5.76% ARQQ 2025-05-01 08:01:22 16.44 16.11 4.24% ARQQ 2025-05-01 09:00:55 16.36 15.96 3.64% ARQQ 2025-05-01 10:01:19 17.54 17.27 10.97% ARQQ 2025-05-01 11:00:54 17.67 17.50 12.42% ARQQ 2025-05-01 12:01:22 16.96 16.81 8.00% ARQQ 2025-05-01 13:00:53 17.04 16.81 8.24% ARQQ 2025-05-01 14:01:20 16.63 16.52 6.06% ARQQ 2025-05-01 15:00:53 16.86 16.76 7.94% ARQQ 2025-05-01 16:01:18 17.38 16.61 7.27% ARQQ 2025-05-01 17:00:50 16.81 16.61 8.32% ARQQ 2025-05-01 19:00:54 17.55 16.50 9.68% ARQQ 2025-05-01 20:01:15 0.00 0.00 9.68% 2025-05-02 ARQQ 2025-05-02 05:00:55 17.20 16.90 1.29% ARQQ 2025-05-02 06:01:32 17.20 16.80 1.29% ARQQ 2025-05-02 07:00:55 17.77 16.80 1.74% ARQQ 2025-05-02 08:01:20 17.50 17.20 3.35% ARQQ 2025-05-02 09:00:57 17.42 17.32 4.45% ARQQ 2025-05-02 10:01:19 16.60 16.52 -0.90% ARQQ 2025-05-02 11:00:54 17.10 16.93 2.06% ARQQ 2025-05-02 12:01:22 17.30 17.05 2.90% ARQQ 2025-05-02 13:01:00 17.37 17.22 3.55% ARQQ 2025-05-02 14:01:19 17.21 16.99 2.39% ARQQ 2025-05-02 15:00:56 17.12 16.93 1.81% ARQQ 2025-05-02 16:01:20 17.00 16.78 1.29% ARQQ 2025-05-02 17:00:53 17.20 16.81 0.66% ARQQ 2025-05-02 18:01:10 16.94 16.81 0.66% ARQQ 2025-05-02 19:00:52 17.30 16.81 0.66% ARQQ 2025-05-02 20:01:18 0.00 0.00 0.66% 2025-05-05 ARQQ 2025-05-05 05:00:55 17.17 16.90 0.18% ARQQ 2025-05-05 06:01:16 16.93 16.60 0.00% ARQQ 2025-05-05 07:01:00 17.22 16.60 -0.48% ARQQ 2025-05-05 08:01:15 16.70 16.40 -1.38% ARQQ 2025-05-05 09:00:57 16.54 16.27 -2.99% ARQQ 2025-05-05 10:01:21 16.67 16.50 -2.40% ARQQ 2025-05-05 11:00:52 16.30 16.23 -4.25% ARQQ 2025-05-05 12:01:20 16.05 15.91 -5.69% ARQQ 2025-05-05 13:00:52 16.24 16.12 -4.49% ARQQ 2025-05-05 14:01:19 16.20 16.06 -5.03% ARQQ 2025-05-05 15:00:54 16.26 16.18 -4.25% ARQQ 2025-05-05 16:01:18 16.26 16.10 -4.73% ARQQ 2025-05-05 17:00:50 16.28 16.10 -3.79% ARQQ 2025-05-05 18:01:11 16.31 16.00 -3.49% ARQQ 2025-05-05 20:01:15 0.00 0.00 -3.49% 2025-05-06 ARQQ 2025-05-06 04:01:29 19.50 0.00 -3.49% ARQQ 2025-05-06 05:00:54 16.05 16.00 -0.59% ARQQ 2025-05-06 06:01:20 16.07 15.97 -0.30% ARQQ 2025-05-06 07:00:55 16.05 15.97 -0.24% ARQQ 2025-05-06 08:01:20 16.50 15.92 -0.24% ARQQ 2025-05-06 09:00:58 15.90 15.59 -2.43% ARQQ 2025-05-06 10:01:29 15.20 15.02 -5.92% ARQQ 2025-05-06 11:00:54 15.40 15.15 -5.33% ARQQ 2025-05-06 12:01:23 15.41 15.38 -4.14% ARQQ 2025-05-06 13:00:54 15.76 15.56 -3.02% ARQQ 2025-05-06 14:01:23 15.72 15.43 -3.37% ARQQ 2025-05-06 15:00:54 15.62 15.50 -3.20% ARQQ 2025-05-06 16:01:20 15.45 15.25 -4.79% ARQQ 2025-05-06 17:00:54 15.88 15.35 -4.10% ARQQ 2025-05-06 17:26:24 8-K Sec report https://www.sec.gov/Archives/edgar/data/1515156/000151515625000054/0001515156-25-000054-index.htm 8-K - Arq, Inc. (0001515156) (Filer) ARQQ 2025-05-06 18:01:18 15.88 15.49 -3.79% ARQQ 2025-05-06 19:00:48 15.88 15.50 -3.79% ARQQ 2025-05-06 20:01:09 0.00 0.00 -3.17% 2025-05-07 ARQQ 2025-05-07 05:00:59 16.82 15.00 -3.17% ARQQ 2025-05-07 06:01:15 16.82 15.31 -3.17% ARQQ 2025-05-07 06:32:25 10-Q Sec report https://www.sec.gov/Archives/edgar/data/1515156/000151515625000058/0001515156-25-000058-index.htm 10-Q - Arq, Inc. (0001515156) (Filer) ARQQ 2025-05-07 06:37:28 8-K Sec report https://www.sec.gov/Archives/edgar/data/1515156/000151515625000060/0001515156-25-000060-index.htm 8-K - Arq, Inc. (0001515156) (Filer) ARQQ 2025-05-07 07:00:58 16.04 15.45 -3.17% ARQQ 2025-05-07 10:01:10 15.46 15.36 0.56% ARQQ 2025-05-07 11:00:53 15.75 15.46 1.49% ARQQ 2025-05-07 12:01:07 16.27 16.07 5.59% ARQQ 2025-05-07 13:00:55 16.24 16.01 4.59% ARQQ 2025-05-07 14:01:02 16.25 16.03 4.72% ARQQ 2025-05-07 15:00:57 16.29 16.12 5.59% ARQQ 2025-05-07 16:01:08 16.33 15.78 4.35% ARQQ 2025-05-07 18:01:00 16.38 15.85 3.41% ARQQ 2025-05-07 19:00:55 16.00 15.78 4.35% ARQQ 2025-05-07 20:01:06 0.00 0.00 4.35% 2025-05-08 ARQQ 2025-05-08 04:01:04 17.00 0.00 4.35% ARQQ 2025-05-08 05:00:56 16.98 16.50 4.35% ARQQ 2025-05-08 06:01:05 16.75 16.39 2.36% ARQQ 2025-05-08 07:00:56 16.38 16.00 1.80% ARQQ 2025-05-08 08:01:03 16.80 16.30 3.35% ARQQ 2025-05-08 09:00:51 16.66 16.60 3.91% ARQQ 2025-05-08 10:01:20 16.40 15.92 0.00% ARQQ 2025-05-08 11:00:58 16.73 16.50 2.67% ARQQ 2025-05-08 12:01:02 16.79 16.30 2.23% ARQQ 2025-05-08 13:01:19 16.65 16.37 2.92% ARQQ 2025-05-08 14:01:08 16.70 16.55 3.79% ARQQ 2025-05-08 15:00:56 16.71 16.55 4.22% ARQQ 2025-05-08 16:01:09 16.70 16.37 3.10% ARQQ 2025-05-08 17:00:48 16.70 16.55 3.50% ARQQ 2025-05-08 18:00:57 16.70 16.37 2.63% ARQQ 2025-05-08 19:00:52 16.59 16.37 3.69% ARQQ 2025-05-08 20:01:03 0.00 0.00 2.38% 2025-05-09 ARQQ 2025-05-09 05:00:53 16.93 16.50 2.38% ARQQ 2025-05-09 06:01:07 16.93 14.98 0.25% ARQQ 2025-05-09 07:00:51 16.99 16.46 -0.31% ARQQ 2025-05-09 08:01:03 17.00 15.89 -0.63% ARQQ 2025-05-09 09:00:57 16.56 16.37 -0.63% ARQQ 2025-05-09 10:01:10 16.47 16.39 -0.19% ARQQ 2025-05-09 11:00:57 15.99 15.87 -3.56% ARQQ 2025-05-09 12:01:06 16.00 15.90 -3.13% ARQQ 2025-05-09 13:00:53 15.95 15.80 -4.06% ARQQ 2025-05-09 14:01:07 16.00 15.85 -4.31% ARQQ 2025-05-09 15:00:52 15.92 15.85 -3.94% ARQQ 2025-05-09 16:01:10 16.09 15.81 -4.13% ARQQ 2025-05-09 17:00:49 16.24 15.84 -4.13% ARQQ 2025-05-09 18:00:59 16.24 15.87 -3.94% ARQQ 2025-05-09 19:00:53 16.24 15.86 -3.88% ARQQ 2025-05-09 20:01:01 0.00 0.00 -3.94%