SION
SIONNA THER (SION)
NASDAQ
$4.06+$0.02 (+0.50%)
Price as of Oct 29, 2026 1:32 PM EDT
  • $182.7M
    Market Cap
  • -89.23%
    1-Year Change
  • Biotechnology
    Industry
  • 1 Month
    -21.09%
    Low Price$3.60
    High Price$5.26
  • 3 Months
    -91.32%
    Low Price$3.60
    High Price$51.04
  • 1 Year
    -89.23%
    Low Price$3.60
    High Price$51.04
Date
Open
High
Low
Close
Change (%)
Volume
10/28/2026
3.85
4.16
3.78
4.04
+4.39%
952,997
10/27/2026
3.68
3.91
3.63
3.87
+4.88%
1,000,697
10/26/2026
3.58
3.74
3.57
3.69
+2.50%
614,224
10/23/2026
3.75
3.82
3.55
3.60
-5.26%
918,199
10/22/2026
3.87
3.97
3.64
3.80
-1.81%
1,592,314
10/21/2026
4.20
4.31
3.86
3.87
-6.75%
1,557,305
10/20/2026
4.06
4.30
4.02
4.15
+3.49%
1,068,728
10/19/2026
3.93
4.11
3.84
4.01
+3.08%
1,165,571
10/16/2026
4.06
4.06
3.78
3.89
-4.66%
1,487,570
10/15/2026
4.15
4.30
4.02
4.08
-0.24%
944,607
10/14/2026
4.30
4.40
3.93
4.09
-6.62%
1,498,300
10/13/2026
4.69
4.80
4.37
4.38
-6.61%
790,632
10/12/2026
4.89
4.93
4.68
4.69
-4.29%
692,612
10/09/2026
4.93
5.12
4.83
4.90
0.00%
633,561
10/08/2026
4.78
4.97
4.65
4.90
+1.66%
915,602
10/07/2026
4.68
4.87
4.61
4.82
+1.47%
880,221
10/06/2026
4.88
4.88
4.52
4.75
-2.06%
1,261,138
10/05/2026
4.95
4.96
4.63
4.85
-1.22%
1,097,395
10/02/2026
5.19
5.19
4.86
4.91
-3.73%
1,160,195
10/01/2026
5.26
5.33
5.03
5.10
-3.04%
1,059,863
09/30/2026
5.19
5.34
5.02
5.26
+2.14%
1,157,751
09/29/2026
5.15
5.19
5.03
5.15
+0.59%
797,862
09/28/2026
5.17
5.25
5.05
5.12
-2.10%
775,817
09/25/2026
5.28
5.30
5.09
5.23
0.00%
1,402,392
09/24/2026
5.50
5.59
5.15
5.23
-5.08%
1,252,772
09/23/2026
6.03
6.12
5.32
5.51
-8.47%
1,669,507
09/22/2026
5.99
6.17
5.84
6.02
+0.33%
1,685,253
09/21/2026
6.00
6.13
5.70
6.00
+0.67%
2,522,926
09/18/2026
7.12
7.19
5.90
5.96
-16.99%
3,699,843
09/17/2026
7.27
7.73
7.15
7.18
+1.99%
1,481,560
09/16/2026
6.95
7.37
6.91
7.04
+2.33%
1,971,092
09/15/2026
7.87
8.00
6.85
6.88
-16.71%
2,462,370
09/14/2026
7.84
8.54
7.84
8.26
+5.22%
1,218,419
09/11/2026
7.79
8.03
7.47
7.85
+3.02%
1,210,909
09/10/2026
7.40
7.75
7.12
7.62
+1.87%
1,222,717
09/09/2026
7.27
7.55
7.17
7.48
+2.47%
767,459
09/08/2026
7.13
7.56
6.89
7.30
+1.67%
884,748
09/04/2026
6.68
7.22
6.62
7.18
+6.37%
926,065
09/03/2026
7.31
7.56
6.70
6.75
-7.66%
1,243,913
09/02/2026
6.63
7.35
6.27
7.31
+13.16%
1,590,547
09/01/2026
5.95
6.48
5.93
6.46
+7.13%
1,411,953
08/31/2026
5.87
6.08
5.75
6.03
+2.73%
1,377,896
08/28/2026
5.97
6.06
5.82
5.87
-3.14%
784,785
08/27/2026
6.14
6.25
5.97
6.06
-1.78%
775,759
08/26/2026
6.20
6.29
6.02
6.17
-1.28%
926,262
08/25/2026
5.60
6.30
5.58
6.25
+11.81%
1,973,987
08/24/2026
5.29
5.61
5.21
5.59
+5.67%
1,775,133
08/21/2026
5.54
5.72
5.27
5.29
-4.17%
1,937,812
08/20/2026
6.27
6.27
5.51
5.52
-11.68%
1,749,471
08/19/2026
6.09
6.28
5.88
6.25
+5.22%
1,868,245
08/18/2026
5.75
5.98
5.60
5.94
+0.51%
2,057,574
08/17/2026
6.47
6.80
5.82
5.91
-8.51%
2,985,330
08/14/2026
6.24
6.66
6.15
6.46
-1.22%
2,877,413
08/13/2026
6.29
6.75
6.05
6.54
+4.64%
5,485,953
08/12/2026
4.99
6.40
4.98
6.25
+22.55%
9,438,013
08/11/2026
4.51
5.49
4.49
5.10
+13.33%
14,931,116
08/10/2026
4.85
5.00
4.01
4.50
-91.18%
38,644,402
08/07/2026
50.86
54.97
49.30
51.04
+2.88%
747,527
08/06/2026
47.11
50.80
47.08
49.61
+4.80%
778,470
08/06/2026
-$0.66 Earnings
08/05/2026
50.20
51.91
46.92
47.34
-5.21%
757,882
08/04/2026
50.16
51.73
48.52
49.94
+1.38%
913,121
08/03/2026
46.86
49.49
45.57
49.26
+4.52%
509,031
07/31/2026
46.68
47.62
44.27
47.13
+0.75%
392,310
07/30/2026
44.69
47.28
44.64
46.78
+4.40%
353,250
07/29/2026
46.81
46.84
44.63
44.81
-3.74%
369,411
07/28/2026
45.41
46.69
44.11
46.55
+2.58%
320,288
07/27/2026
46.03
47.89
45.11
45.38
-0.70%
403,811
07/24/2026
44.31
46.40
43.41
45.70
+3.72%
654,939
07/23/2026
44.39
46.45
43.84
44.06
-2.15%
811,060
07/22/2026
46.92
47.71
44.23
45.03
-4.62%
562,855
07/21/2026
45.24
48.00
45.24
47.21
+3.33%
598,140
07/20/2026
50.20
51.57
44.78
45.69
-7.53%
816,701
07/17/2026
44.72
51.00
43.12
49.41
+9.10%
1,139,315
07/16/2026
44.17
48.22
43.47
45.29
+2.05%
1,096,320
07/15/2026
42.33
45.37
41.69
44.38
+4.20%
521,485
07/14/2026
44.24
45.01
42.39
42.59
-3.09%
273,601
07/13/2026
45.40
45.49
42.73
43.95
-2.96%
415,293
07/10/2026
44.90
45.41
42.24
45.29
+0.78%
370,997
07/09/2026
44.00
45.91
43.65
44.94
+2.14%
755,244
07/08/2026
44.48
46.98
43.29
44.00
-2.07%
573,836
07/07/2026
43.67
46.64
43.00
44.93
+4.20%
664,396
07/06/2026
44.01
44.38
42.39
43.12
-1.98%
255,812
07/02/2026
42.05
44.18
41.16
43.99
+5.64%
329,043
07/01/2026
43.63
44.28
40.92
41.64
-5.34%
438,285
06/30/2026
43.33
45.00
42.40
43.99
+2.37%
682,833
06/29/2026
42.29
43.48
41.72
42.97
+1.87%
319,977
06/26/2026
42.56
44.03
40.69
42.18
-1.38%
1,019,147
06/25/2026
41.09
44.30
40.44
42.77
+4.09%
475,583
06/24/2026
39.81
41.28
39.18
41.09
+3.06%
544,602
06/23/2026
38.40
42.31
37.28
39.87
+2.68%
540,441
06/22/2026
37.89
40.02
37.87
38.83
+4.10%
416,416
06/18/2026
38.28
38.56
36.63
37.30
+1.55%
736,761
06/17/2026
34.81
37.11
33.99
36.73
+5.70%
406,685
06/16/2026
36.01
36.21
34.43
34.75
-3.47%
375,115
06/15/2026
36.54
37.82
35.53
36.00
+0.22%
278,622
06/12/2026
36.05
37.17
35.50
35.92
-0.36%
189,641
06/11/2026
34.20
36.84
33.72
36.05
+5.94%
398,970
06/10/2026
33.44
35.29
32.84
34.03
+1.01%
316,937
06/09/2026
34.37
35.26
32.33
33.69
+0.54%
320,199