Cyanotech Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 4, 2025	0.42	0.42	0.42	0.42	0.42	-0.12%	1,707
Jun 3, 2025	0.38	0.42	0.32	0.42	0.42	2.45%	25,887
Jun 2, 2025	0.38	0.41	0.36	0.41	0.41	0.62%	4,164
May 30, 2025	0.40	0.41	0.40	0.40	0.40	-1.12%	44,170
May 29, 2025	0.41	0.41	0.41	0.41	0.41	-	-
May 28, 2025	0.41	0.41	0.41	0.41	0.41	2.37%	300
May 27, 2025	0.40	0.40	0.36	0.40	0.40	-2.32%	948
May 23, 2025	0.38	0.41	0.34	0.41	0.41	2.37%	19,570
May 22, 2025	0.39	0.41	0.36	0.40	0.40	5.26%	42,052
May 21, 2025	0.32	0.38	0.32	0.38	0.38	8.57%	20,711
May 20, 2025	0.35	0.40	0.35	0.35	0.35	9.03%	7,120
May 19, 2025	0.32	0.32	0.32	0.32	0.32	0.28%	145
May 16, 2025	0.34	0.34	0.32	0.32	0.32	-19.98%	10,600
May 15, 2025	0.35	0.40	0.33	0.40	0.40	14.29%	5,700
May 14, 2025	0.33	0.35	0.33	0.35	0.35	8.70%	779
May 13, 2025	0.35	0.36	0.32	0.32	0.32	-14.09%	7,867
May 12, 2025	0.41	0.41	0.35	0.37	0.37	-10.76%	22,715
May 9, 2025	0.42	0.42	0.42	0.42	0.42	-	10
May 8, 2025	0.42	0.42	0.42	0.42	0.42	-2.33%	150
May 7, 2025	0.43	0.43	0.43	0.43	0.43	-	-
May 6, 2025	0.43	0.43	0.43	0.43	0.43	-	-
May 5, 2025	0.43	0.43	0.43	0.43	0.43	-	-
May 2, 2025	0.39	0.44	0.39	0.43	0.43	19.53%	22,500
May 1, 2025	0.48	0.48	0.35	0.36	0.36	9.51%	4,767
Apr 30, 2025	0.32	0.44	0.32	0.33	0.33	10.79%	562
Apr 29, 2025	0.30	0.30	0.30	0.30	0.30	-	-
Apr 28, 2025	0.30	0.30	0.30	0.30	0.30	-	30
Apr 25, 2025	0.30	0.30	0.30	0.30	0.30	-	134
Apr 24, 2025	0.30	0.30	0.30	0.30	0.30	-	128
Apr 23, 2025	0.30	0.30	0.30	0.30	0.30	1.19%	934
Apr 22, 2025	0.29	0.29	0.29	0.29	0.29	-	5
Apr 21, 2025	0.29	0.29	0.29	0.29	0.29	-12.90%	303
Apr 17, 2025	0.33	0.34	0.33	0.34	0.34	16.97%	22,450
Apr 16, 2025	0.27	0.29	0.24	0.29	0.29	25.04%	72,992
Apr 15, 2025	0.28	0.29	0.23	0.23	0.23	-23.33%	33,790
Apr 14, 2025	0.30	0.31	0.30	0.30	0.30	-6.25%	11,070
Apr 11, 2025	0.32	0.32	0.32	0.32	0.32	6.67%	653
Apr 10, 2025	0.36	0.36	0.27	0.30	0.30	-12.69%	71,092
Apr 9, 2025	0.35	0.35	0.34	0.34	0.34	5.60%	444
Apr 8, 2025	0.31	0.33	0.31	0.33	0.33	6.55%	1,267
Apr 7, 2025	0.31	0.31	0.31	0.31	0.31	-15.14%	222
Apr 4, 2025	0.35	0.36	0.32	0.36	0.36	-13.84%	21,362
Apr 3, 2025	0.42	0.42	0.42	0.42	0.42	19.27%	452
Apr 2, 2025	0.35	0.35	0.35	0.35	0.35	-	151
Apr 1, 2025	0.35	0.35	0.35	0.35	0.35	0.06%	500
Mar 31, 2025	0.35	0.35	0.35	0.35	0.35	-	-
Mar 28, 2025	0.35	0.35	0.35	0.35	0.35	-16.27%	2,728
Mar 27, 2025	0.42	0.42	0.42	0.42	0.42	-	-
Mar 26, 2025	0.42	0.42	0.42	0.42	0.42	-	10
Mar 25, 2025	0.42	0.42	0.42	0.42	0.42	-	7