Archimedes Tech SPAC Partners II Co. (ATII)

ATII Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 22, 2026	11.06	11.06	10.90	10.93	10.93	-0.27%	96,625
Jun 18, 2026	10.91	11.01	10.91	10.96	10.96	-0.36%	118,390
Jun 17, 2026	10.95	11.12	10.87	11.00	11.00	0.18%	214,227
Jun 16, 2026	11.00	11.15	10.90	10.98	10.98	-	141,115
Jun 15, 2026	11.01	11.03	10.94	10.98	10.98	-	125,880
Jun 12, 2026	10.91	11.00	10.90	10.98	10.98	0.09%	161,687
Jun 11, 2026	10.91	11.00	10.90	10.97	10.97	0.55%	174,307
Jun 10, 2026	11.00	11.00	10.90	10.91	10.91	-0.82%	156,610
Jun 9, 2026	11.14	11.20	10.90	11.00	11.00	-0.18%	224,235
Jun 8, 2026	11.01	11.13	10.95	11.02	11.02	0.18%	475,917
Jun 5, 2026	11.35	11.35	10.88	11.00	11.00	-2.40%	448,119
Jun 4, 2026	11.31	11.34	11.16	11.27	11.27	-0.18%	135,942
Jun 3, 2026	11.20	11.37	11.13	11.29	11.29	0.89%	417,952
Jun 2, 2026	11.21	11.25	11.05	11.19	11.19	-0.27%	280,645
Jun 1, 2026	11.26	11.38	11.20	11.22	11.22	-	587,742
May 29, 2026	11.21	11.39	11.06	11.22	11.22	0.18%	513,848
May 28, 2026	11.34	11.40	11.11	11.20	11.20	-0.53%	234,570
May 27, 2026	11.26	11.34	11.10	11.26	11.26	-0.62%	398,112
May 26, 2026	11.35	11.39	11.26	11.33	11.33	-0.44%	249,957
May 22, 2026	11.25	11.40	11.13	11.38	11.38	1.61%	466,331
May 21, 2026	11.27	11.33	11.17	11.20	11.20	-0.27%	175,288
May 20, 2026	11.15	11.37	11.01	11.23	11.23	1.54%	885,081
May 19, 2026	11.03	11.15	10.92	11.06	11.06	0.27%	598,640
May 18, 2026	11.09	11.12	11.03	11.03	11.03	0.91%	298,409
May 15, 2026	10.85	11.08	10.84	10.93	10.93	0.28%	790,816
May 14, 2026	10.85	10.95	10.80	10.90	10.90	0.41%	216,854
May 13, 2026	10.80	10.90	10.75	10.86	10.86	0.88%	285,129
May 12, 2026	10.82	10.86	10.70	10.76	10.76	-0.83%	145,627
May 11, 2026	10.79	10.90	10.78	10.85	10.85	0.46%	516,561
May 8, 2026	10.79	10.83	10.75	10.80	10.80	-	117,541
May 7, 2026	10.81	10.87	10.78	10.80	10.80	-0.28%	370,320
May 6, 2026	10.66	10.89	10.63	10.83	10.83	2.07%	601,618
May 5, 2026	10.63	10.65	10.61	10.61	10.61	-0.28%	10,226
May 4, 2026	10.67	10.67	10.63	10.64	10.64	-0.09%	117,521
May 1, 2026	10.65	10.67	10.65	10.65	10.65	-	120,900
Apr 30, 2026	10.63	10.67	10.63	10.65	10.65	-0.28%	187,945
Apr 29, 2026	10.66	10.68	10.66	10.68	10.68	0.38%	145,614
Apr 28, 2026	10.70	10.70	10.56	10.64	10.64	-0.37%	58,139
Apr 27, 2026	10.64	10.69	10.63	10.68	10.68	0.56%	134,309
Apr 24, 2026	10.60	10.67	10.59	10.62	10.62	0.28%	28,075
Apr 23, 2026	10.68	10.68	10.54	10.59	10.59	-0.75%	85,199
Apr 22, 2026	10.70	10.70	10.64	10.67	10.67	0.57%	458,998
Apr 21, 2026	10.52	10.61	10.51	10.61	10.61	1.43%	4,552,509
Apr 20, 2026	10.46	10.47	10.45	10.46	10.46	-	12,279
Apr 16, 2026	10.44	10.46	10.44	10.46	10.46	0.19%	1,197
Apr 15, 2026	10.45	10.45	10.44	10.44	10.44	-	401
Apr 14, 2026	10.46	10.46	10.44	10.44	10.44	0.10%	454
Apr 13, 2026	10.44	10.44	10.43	10.43	10.43	-	9,889
Apr 10, 2026	10.41	10.43	10.41	10.43	10.43	0.10%	1,261
Apr 7, 2026	10.42	10.42	10.41	10.42	10.42	0.10%	25,399

Data Source: S&P Global Market Intelligence Last updated: Jun 22, 2026

Historical price data is provided by S&P Global Market Intelligence. New prices are added after the close of each trading day, and past prices are adjusted for stock splits.

Update frequency:

Daily

Last checked:

Jun 22, 2026

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