Cyanotech Corporation (CYAN)
OTCMKTS · Delayed Price · Currency is USD
0.3400
+0.0100 (3.03%)
Oct 7, 2025, 1:54 PM EDT

Cyanotech Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 8, 20250.340.340.340.340.34--
Oct 7, 20250.340.340.340.340.343.03%160
Oct 6, 20250.330.340.330.330.33-7,801
Oct 3, 20250.330.330.330.330.33-3.57%1,705
Oct 2, 20250.350.350.290.340.3415.69%850
Oct 1, 20250.300.300.300.300.30-1.92%101
Sep 30, 20250.350.350.300.300.30-13.33%392
Sep 29, 20250.350.350.350.350.35-0.57%181
Sep 26, 20250.330.350.330.350.3516.67%8,025
Sep 25, 20250.300.300.300.300.300.89%251
Sep 24, 20250.270.330.270.300.302.54%2,417
Sep 23, 20250.290.300.290.290.291.05%8,900
Sep 22, 20250.270.290.270.290.29-3.37%1,977
Sep 19, 20250.300.300.300.300.30-53
Sep 18, 20250.270.330.270.300.3010.00%29,362
Sep 17, 20250.270.270.270.270.27-70
Sep 16, 20250.280.280.240.270.27-1.82%72,125
Sep 15, 20250.280.280.280.280.28-5.98%1,000
Sep 12, 20250.290.290.270.290.29-2.50%3,426
Sep 11, 20250.300.300.290.300.30-3,841
Sep 10, 20250.260.300.260.300.3015.38%3,500
Sep 9, 20250.250.270.250.260.26-13.33%40,010
Sep 8, 20250.300.300.300.300.30-137
Sep 5, 20250.280.300.250.300.303.45%4,800
Sep 4, 20250.280.290.280.290.293.57%356
Sep 3, 20250.280.280.280.280.28-100
Sep 2, 20250.280.280.280.280.28-17.65%600
Aug 29, 20250.340.340.340.340.3421.34%150
Aug 28, 20250.320.320.280.280.28-3.38%2,150
Aug 27, 20250.290.290.290.290.29-2
Aug 26, 20250.290.290.290.290.29-40
Aug 25, 20250.280.290.280.290.29-8.23%692
Aug 22, 20250.290.320.290.320.325.33%1,100
Aug 21, 20250.300.300.300.300.30-30
Aug 20, 20250.300.300.300.300.30-2
Aug 19, 20250.270.330.270.300.30-12.28%10,173
Aug 18, 20250.300.340.300.340.3413.25%6,000
Aug 15, 20250.300.300.300.300.30--
Aug 14, 20250.300.300.300.300.30-101
Aug 13, 20250.300.300.300.300.30-15.64%208
Aug 12, 20250.250.360.250.360.36-14.76%1,455
Aug 11, 20250.360.420.300.420.42-3,404
Aug 8, 20250.210.420.210.420.4227.27%48,402
Aug 7, 20250.350.360.330.330.33-15.38%22,750
Aug 6, 20250.380.390.360.390.395.41%15,759
Aug 5, 20250.370.370.370.370.37--
Aug 4, 20250.370.400.370.370.37-7,444
Aug 1, 20250.390.390.370.370.37-1,500
Jul 31, 20250.380.380.370.370.37-3.90%1,198
Jul 30, 20250.390.390.390.390.39-4.94%182