Cytosorbents Corporation CTSO

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Cytosorbents Corporation - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 0.3600 · FX 1 USD = 1.288650 SGD · about SGD 0.4639 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 0.94 → 0.36 · -61.8%
1.2000.7800.360 1 2,3 4 5 6 7,8 9 10 11 12 13,14 15 16,17,18 19 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
0.3730 0.3830 0.3600 0.3600 37,700
0.4000 0.4010 0.3610 0.3610 38,100
0.3980 0.4000 0.3820 0.3820 32,300
0.3900 0.4000 0.3750 0.3940 39,300
0.3600 0.3900 0.3600 0.3800 55,700
Weekend
Weekend
0.3550 0.3750 0.3500 0.3600 78,000
0.3810 0.3900 0.3600 0.3690 67,200
0.3900 0.4010 0.3890 0.3890 55,500
0.3800 0.4100 0.3740 0.3890 69,300
0.3900 0.4250 0.3700 0.3800 91,300
Weekend
Weekend
0.3690 0.4000 0.3690 0.3810 42,400
0.3900 0.4000 0.3700 0.3720 56,600
0.4050 0.4100 0.3800 0.3900 50,600
0.4200 0.4500 0.3800 0.4070 46,100
19 · 8-K After-hours · 16:05 ET FORM 8-K ↗
0.4360 0.4600 0.4180 0.4300 106,200
Weekend
Weekend
No trading
0.3860 0.4080 0.3810 0.3900 101,900
0.3950 0.4100 0.3820 0.3910 178,700
0.3800 0.4210 0.3700 0.3740 191,100
0.4000 0.4360 0.3500 0.3820 150,100
Weekend
Weekend
0.4700 0.4960 0.3620 0.3620 329,600
18 · DEFA14A After-hours · 16:45 ET DEFA14A ↗ 17 · DEF 14A After-hours · 16:43 ET FORM DEF 14A ↗
0.4800 0.4900 0.4550 0.4600 54,700
16 · 8-K Pre-market · 09:26 ET FORM 8-K ↗
0.4170 0.5200 0.4100 0.4670 580,900
0.4100 0.4440 0.4100 0.4290 50,500
0.4260 0.4300 0.4120 0.4130 47,300
Weekend
Weekend
No trading
0.4630 0.5000 0.4380 0.4380 145,600
0.5000 0.5020 0.4600 0.4770 194,700
0.4900 0.6050 0.4810 0.5190 1,641,500
0.4000 0.4500 0.3820 0.4320 228,500
Weekend
Weekend
0.3880 0.4130 0.3810 0.4000 440,500
15 · PRE 14A After-hours · 17:04 ET PRE 14A ↗
0.4300 0.4300 0.3700 0.3880 441,200
0.4210 0.4400 0.4000 0.4110 76,800
0.4230 0.4710 0.4220 0.4230 94,800
0.4800 0.4800 0.4080 0.4140 43,500
Weekend
Weekend
0.4750 0.5200 0.4370 0.4590 77,800
0.4620 0.4950 0.4500 0.4880 262,600
0.4850 0.5200 0.4500 0.4890 1,155,300
0.4830 0.4900 0.4550 0.4800 30,700
0.4900 0.5280 0.4540 0.4680 65,800
Weekend
Weekend
0.4900 0.5050 0.4620 0.4910 67,400
0.4990 0.5170 0.4520 0.4960 139,500
0.4700 0.4950 0.4400 0.4920 148,200
0.4700 0.4800 0.4500 0.4630 101,000
No trading
Weekend
Weekend
0.4600 0.4700 0.4430 0.4610 115,400
0.4510 0.4670 0.4350 0.4600 139,500
0.4630 0.4800 0.4500 0.4700 91,400
0.4700 0.5000 0.4600 0.4730 38,200
0.4900 0.5300 0.4530 0.4790 171,800
Weekend
Weekend
0.5270 0.5500 0.4920 0.4980 190,000
0.5800 0.5990 0.5150 0.5420 305,600
14 · 10-Q After-hours · 16:21 ET 10-Q ↗ 13 · 8-K After-hours · 16:05 ET SEC Form 8-K ↗
0.6100 0.6100 0.5700 0.5710 92,700
0.6200 0.6300 0.5800 0.5860 43,300
0.6100 0.6300 0.6100 0.6300 62,600
Weekend
Weekend
0.6300 0.6300 0.6000 0.6090 40,800
0.5840 0.6290 0.5700 0.6100 163,600
0.6100 0.6190 0.5690 0.5700 115,400
0.6200 0.6300 0.6050 0.6050 30,000
0.6300 0.6500 0.6200 0.6200 27,200
Weekend
Weekend
0.6400 0.6450 0.6110 0.6140 35,600
0.6200 0.6450 0.6100 0.6100 18,000
0.6400 0.6480 0.6100 0.6360 44,500
0.6100 0.6450 0.6000 0.6000 31,600
0.6300 0.6500 0.6100 0.6120 59,300
Weekend
Weekend
0.6400 0.6500 0.6150 0.6280 22,100
0.6300 0.6500 0.6140 0.6480 17,300
0.6110 0.6570 0.6110 0.6310 29,500
0.6400 0.6400 0.6200 0.6210 22,600
0.6940 0.6940 0.6300 0.6450 59,100
Weekend
Weekend
0.6100 0.6700 0.6000 0.6600 127,700
0.6100 0.6300 0.6000 0.6100 52,300
12 · 10-K/A After-hours · 17:18 ET 10-K/A ↗
0.6100 0.6100 0.5800 0.5910 32,700
0.5870 0.6040 0.5710 0.5890 50,800
0.6210 0.6210 0.5700 0.5850 80,200
Weekend
Weekend
0.6200 0.6200 0.5980 0.6100 44,800
0.6200 0.6200 0.5960 0.6050 32,000
0.6500 0.6600 0.6200 0.6200 126,500
0.6090 0.6290 0.5800 0.6100 84,800
0.5790 0.6350 0.5790 0.5900 72,200
Weekend
Weekend
No trading
0.5900 0.5930 0.5310 0.5830 253,000
11 · 8-K Pre-market · 07:00 ET FORM 8-K ↗
0.6000 0.6000 0.5400 0.5470 76,100
0.5800 0.6000 0.5320 0.5660 108,800
0.5900 0.6000 0.5260 0.5600 246,500
10 · 10-K Pre-market · 07:04 ET 10-K ↗
Weekend
Weekend
0.6200 0.6200 0.5500 0.5930 158,400
0.6110 0.6450 0.4990 0.6000 174,400
9 · 8-K After-hours · 16:27 ET SEC Form 8-K ↗
0.6600 0.6960 0.6120 0.6710 70,700
0.6950 0.7500 0.6600 0.6960 66,300
0.6860 0.6900 0.6630 0.6740 88,500
Weekend
Weekend
0.6200 0.6660 0.6060 0.6600 224,200
0.6600 0.7000 0.6000 0.6380 196,600
0.6850 0.6900 0.6500 0.6500 22,800
0.6450 0.7000 0.6450 0.6800 28,100
0.7200 0.7200 0.6280 0.6500 252,500
Weekend
Weekend
0.7440 0.7440 0.6800 0.7080 30,900
0.7200 0.7430 0.6850 0.7260 130,100
0.7600 0.7990 0.7250 0.7250 39,700
0.8130 0.8440 0.7800 0.7820 38,200
0.8150 0.8150 0.7700 0.8100 53,600
Weekend
Weekend
0.8050 0.8160 0.7700 0.7980 86,700
0.7750 0.8090 0.7700 0.8050 106,200
0.7700 0.8000 0.7690 0.7900 49,000
0.7300 0.8250 0.7000 0.8000 169,400
0.7530 0.7600 0.7300 0.7490 28,900
Weekend
Weekend
0.7300 0.7600 0.7300 0.7530 48,300
0.7290 0.7310 0.7100 0.7270 25,300
0.6900 0.7290 0.6800 0.7110 40,000
0.6890 0.7000 0.6790 0.6900 61,400
0.6550 0.6890 0.6500 0.6790 93,200
Weekend
Weekend
0.6550 0.6680 0.6400 0.6400 23,700
0.6550 0.6600 0.6400 0.6490 17,200
0.6550 0.6630 0.6200 0.6490 198,900
0.6420 0.6700 0.6300 0.6400 47,100
No trading
Weekend
Weekend
0.6600 0.6700 0.6300 0.6410 50,600
0.6500 0.6900 0.6300 0.6350 158,800
0.6750 0.6850 0.6200 0.6200 121,400
0.6800 0.6850 0.6700 0.6700 19,800
0.6700 0.7160 0.6700 0.6710 26,000
Weekend
Weekend
0.6600 0.7000 0.6600 0.6720 52,700
0.6800 0.7010 0.6300 0.6300 70,000
0.6800 0.7300 0.6700 0.6710 79,600
0.6870 0.7300 0.6700 0.6850 158,900
0.6330 0.6780 0.6330 0.6770 45,900
Weekend
Weekend
0.6600 0.6780 0.6300 0.6300 128,600
0.6970 0.7000 0.6410 0.6590 67,800
0.6890 0.7000 0.6600 0.6830 62,600
0.6700 0.6800 0.6310 0.6770 159,100
0.6900 0.7020 0.6500 0.6600 109,600
Weekend
Weekend
0.6890 0.7300 0.6700 0.6800 53,900
0.6780 0.7070 0.6740 0.6760 78,200
0.6820 0.7100 0.6790 0.6810 61,800
0.6900 0.7100 0.6750 0.6770 38,800
No trading
Weekend
Weekend
0.7000 0.7190 0.6900 0.7020 31,400
0.7290 0.7290 0.6700 0.6910 59,500
0.7400 0.7400 0.7000 0.7180 76,500
0.7200 0.7300 0.7100 0.7300 149,300
0.6980 0.7290 0.6700 0.7010 97,200
Weekend
Weekend
0.6700 0.6920 0.6500 0.6710 83,800
0.7000 0.7000 0.6680 0.6730 48,500
0.6900 0.7000 0.6730 0.6800 23,000
0.6800 0.7000 0.6610 0.6800 63,200
0.6600 0.6800 0.6510 0.6660 41,400
Weekend
Weekend
0.6580 0.6810 0.6500 0.6560 48,700
No trading
0.6400 0.6800 0.6160 0.6390 295,100
0.6600 0.6750 0.6310 0.6420 152,200
0.6600 0.6900 0.6600 0.6600 124,000
Weekend
Weekend
0.7000 0.7000 0.6540 0.6800 131,100
No trading
0.7100 0.7100 0.6810 0.6890 69,300
0.7400 0.7400 0.6870 0.7000 56,400
0.6400 0.7660 0.6400 0.7660 184,200
Weekend
Weekend
0.6390 0.6750 0.6200 0.6370 280,600
0.6250 0.6600 0.6150 0.6450 138,000
0.6500 0.6660 0.6400 0.6430 91,500
0.6410 0.6660 0.6280 0.6400 147,900
0.6700 0.6800 0.6000 0.6260 321,900
Weekend
Weekend
0.7200 0.7200 0.6300 0.6840 159,300
0.6650 0.7290 0.6650 0.7100 79,800
0.7000 0.7300 0.6550 0.6570 260,500
0.7200 0.7590 0.7200 0.7490 52,600
0.7200 0.7500 0.7100 0.7240 104,300
Weekend
Weekend
0.7400 0.7530 0.7040 0.7300 70,200
0.7200 0.7460 0.6950 0.7390 66,000
0.7800 0.8000 0.7050 0.7300 93,400
0.7860 0.8160 0.7530 0.7660 33,500
0.7950 0.8300 0.7500 0.7500 122,200
Weekend
Weekend
0.7800 0.8330 0.7660 0.8110 37,800
No trading
0.8390 0.8390 0.7900 0.7910 134,900
0.8300 0.8500 0.7820 0.8370 93,900
0.7100 0.8500 0.7070 0.8290 138,100
Weekend
Weekend
0.6220 0.7120 0.6100 0.7070 172,400
0.6520 0.6520 0.6000 0.6220 157,900
0.6220 0.6800 0.6140 0.6390 90,700
0.6970 0.6990 0.6130 0.6220 218,300
0.6600 0.7000 0.6560 0.6560 81,500
Weekend
Weekend
0.6800 0.7000 0.6000 0.6600 135,600
8 · 10-Q After-hours · 16:32 ET 10-Q ↗ 7 · 8-K After-hours · 16:34 ET SEC Form 8-K ↗
0.6770 0.7000 0.6400 0.6660 292,800
0.6910 0.6980 0.6100 0.6390 237,900
0.7200 0.7910 0.6910 0.6980 148,500
0.7100 0.7490 0.7100 0.7220 67,800
Weekend
Weekend
0.7300 0.7360 0.7000 0.7080 129,900
0.7400 0.7490 0.7100 0.7100 80,800
0.7800 0.8000 0.7450 0.7450 196,300
0.7800 0.8000 0.7700 0.7910 55,500
0.8100 0.8120 0.7400 0.7810 87,400
Weekend
Weekend
0.7910 0.8290 0.7910 0.7950 71,700
0.8100 0.8500 0.7710 0.7820 222,800
0.8400 0.8500 0.7800 0.7820 115,900
0.8300 0.8600 0.8300 0.8360 31,100
0.8500 0.8600 0.8200 0.8200 45,400
Weekend
Weekend
0.8490 0.8600 0.8490 0.8500 15,700
0.8420 0.8640 0.8300 0.8420 25,300
0.8300 0.8640 0.8010 0.8500 84,900
0.8550 0.8800 0.8200 0.8280 125,100
0.8930 0.9000 0.8400 0.8500 86,800
Weekend
Weekend
0.9100 0.9200 0.8800 0.8860 92,700
0.9190 0.9200 0.9050 0.9060 41,500
0.9400 0.9400 0.9140 0.9160 33,800
0.9100 0.9300 0.9100 0.9220 38,400
0.9200 0.9860 0.9200 0.9300 59,500
Weekend
Weekend
0.9280 0.9500 0.9000 0.9160 126,000
0.9460 1.0000 0.9240 0.9320 65,100
0.9500 0.9890 0.9350 0.9750 101,600
0.9400 0.9990 0.9400 0.9450 19,200
0.9500 0.9880 0.9400 0.9400 54,800
Weekend
Weekend
6 · 8-K After-hours · 16:20 ET FORM 8-K ↗
0.9880 1.0200 0.9510 0.9840 101,000
0.9500 0.9900 0.9310 0.9850 154,900
0.9100 0.9490 0.9100 0.9330 29,400
0.9240 0.9380 0.9240 0.9340 11,000
0.9060 0.9500 0.9060 0.9250 56,800
Weekend
Weekend
0.9100 0.9540 0.9100 0.9340 54,600
0.9460 0.9540 0.9180 0.9260 44,600
0.9400 0.9700 0.9200 0.9530 68,900
0.9600 0.9930 0.9600 0.9610 74,900
0.9000 0.9660 0.9000 0.9660 188,200
Weekend
Weekend
0.9300 0.9500 0.9250 0.9410 126,300
0.9050 0.9500 0.9050 0.9330 38,000
0.9260 0.9490 0.9000 0.9040 166,000
5 · 8-K After-hours · 16:35 ET SEC Form 8-K ↗
0.9050 0.9220 0.8660 0.9090 126,300
0.9300 0.9400 0.9010 0.9150 77,100
Weekend
Weekend
0.9600 0.9700 0.9200 0.9390 69,500
0.9500 0.9800 0.9320 0.9530 43,900
0.9800 0.9980 0.9320 0.9450 87,900
0.9800 1.0400 0.9800 0.9980 83,200
0.9800 1.0200 0.9700 0.9820 68,100
Weekend
Weekend
0.9550 0.9800 0.9360 0.9660 27,700
0.9900 0.9900 0.9610 0.9760 10,500
0.9350 0.9890 0.9350 0.9800 72,800
0.9320 0.9800 0.9320 0.9500 48,700
No trading
Weekend
Weekend
0.9320 0.9510 0.9110 0.9430 52,600
0.9120 0.9580 0.9100 0.9360 31,600
0.9000 0.9580 0.9000 0.9300 82,400
0.8800 0.9500 0.8800 0.9300 73,600
0.9300 0.9700 0.8500 0.9060 171,100
Weekend
Weekend
0.9190 0.9900 0.8800 0.9130 349,600
0.9000 0.9300 0.8270 0.8440 296,200
4 · 8-K After-hours · 16:05 ET FORM 8-K ↗
1.0100 1.0100 0.8800 0.8940 691,500
1.0800 1.1200 1.0700 1.0800 37,800
1.1500 1.1880 1.0900 1.1000 90,200
Weekend
Weekend
1.1400 1.1600 1.1200 1.1600 39,000
1.0800 1.1400 1.0300 1.1400 77,900
1.0500 1.0950 1.0400 1.0800 52,300
1.1500 1.1790 1.0600 1.0600 170,600
1.0200 1.2200 1.0100 1.2000 318,400
Weekend
Weekend
0.9390 1.0070 0.9100 1.0000 98,400
3 · 10-Q After-hours · 16:18 ET 10-Q ↗ 2 · 8-K After-hours · 16:22 ET SEC Form 8-K ↗
0.9020 0.9300 0.8930 0.8930 79,600
0.9110 0.9400 0.8750 0.9020 72,600
0.8920 0.9390 0.8720 0.9150 52,500
0.9000 0.9110 0.8410 0.9110 218,900
Weekend
Weekend
0.8720 0.8890 0.7720 0.8690 4,634,200
1 · 8-K Next filing day · accepted 31 Jul, 18:46 ET FORM 8-K ↗
0.9170 0.9470 0.8490 0.8500 146,400
0.9730 0.9800 0.9200 0.9200 55,700
0.9750 1.0000 0.9100 0.9100 49,300
0.9820 1.0100 0.9420 0.9420 64,600
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

19 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
18 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:45 ET Summarise
17 DEF 14A FORM DEF 14A (opens SEC filing in a new tab) After-hours · 16:43 ET Summarise
16 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:26 ET Summarise
15 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 17:04 ET Summarise
14 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:21 ET Summarise
13 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
12 10-K/A 10-K/A (opens SEC filing in a new tab) After-hours · 17:18 ET Summarise
11 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
10 10-K 10-K (opens SEC filing in a new tab) Pre-market · 07:04 ET Summarise
9 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:27 ET Summarise
8 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
7 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:34 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
5 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:35 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:18 ET Summarise
2 8-K SEC Form 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) Next filing day · accepted 31 Jul, 18:46 ET Summarise