CTSO

Cytosorbents Corporation
NasdaqCMUSDEQUITY Healthcare DELAYED
Last price
3.86
▼ 0.10 (2.64%)
MARKET · —

Price

1D — H — L — Range — Vol —
Drag pan · Pinch zoom · Hold crosshair · pick a tool then drag to draw
Open
4.00
Prev close
3.96
Day high
4.00
Day low
3.86
Volume
1.64K
Market cap
$12.15M
P/E (TTM)
—
52W range
3.66 – 20.00

Day trading desk

Current session · delayed
Gap from prior close
+1.01%
Prior close 3.96
VWAP
—
—
Relative volume
0.00×
Quiet session
Session range
3.75%
3.86 – 4.00
Position in range
0%
Near session low
ATR (14D)
0.51
13.19% of price
Prior day high
4.29
PDH
Prior day low
3.89
PDL
Bid / ask spread
—
Quote not published
Session volume
—
Avg 12.27K

VWAP and the session figures are computed from the delayed intraday series on this page, so they lag the live tape and will not match a broker's real-time VWAP exactly. Turn on Prior day H/L/C, Opening range and Volume profile in the chart's Studies menu to see these levels drawn on price.

Trailing performance

Price return · vs SPY
Returnvs SPY
1W
-1.14% -2.6%
1M
-43.71% -44.8%
3M
-48.18% -51.2%
6M
-68.91% -83.4%
YTD
-69.83% -83.4%
1Y
-79.49% -94.8%
3Y
-89.17% -170.3%
5Y
— —

Price return only. Dividends are not reinvested, so total return on a dividend payer will be higher than shown.

Unusual options activity

Account required
Nothing crossed the thresholds in the expiries we scanned.
That is the normal state — most contracts trade well inside their existing open interest.
Free account required

Contracts trading at or above their open interest, ranked by notional and where the print landed.

Free account

5 more panels on CTSO open with an account.

Options chains and analytics, valuation ratios, insider filings, analyst targets and ownership. No card, no trial, nothing to cancel.

Insider net activity

6m · Form 4 rollup
Net shares
+4.10M
Net buying
Buy transactions
108
4.15M shares
Sell transactions
5
51.01K shares
Net transactions
+113
Buys less sells
Sell : buy shares
0.0 : 1
Mixed
Insider-held shares
510.69K
Total on file
Bought 4.15MSold 51.01K

Insider transactions

Account required
DateInsiderAction SharesValueHeld
Sep 15, 26
CHAN PHILLIP P
Chief Executive Officer
BUY 3.77K $22.64K Direct
Sep 15, 26
SOBEL ALAN D
Director
BUY 2.50K $15.25K Direct
Sep 14, 26
CAPPONI VINCENT J
President
BUY 2.07K $12.54K Direct
Sep 4, 26
CHAN PHILLIP P
Chief Executive Officer
BUY 200.00K $70.00K Direct
Jun 15, 26
MARIANI PETER J
Chief Financial Officer
BUY 100.00K $44.00K Direct
Jun 15, 26
CHAN PHILLIP P
Chief Executive Officer
BUY 261.47K $104.90K Direct
Nov 18, 25
CHAN PHILLIP P
Chief Executive Officer
STOCK 100.00K $64.00K Direct
Aug 8, 25
CAPPONI VINCENT J
President
— 89.10K — Direct
Aug 8, 25
MARIANI PETER J
Chief Financial Officer
— 71.50K — Direct
Aug 8, 25
CHAN PHILLIP P
Chief Executive Officer
— 105.60K — Direct
Aug 8, 25
DELIARGYRIS EFTHYMIOS
Officer
— 70.00K — Direct
Feb 24, 25
CAPPONI VINCENT J
President
CONVERSION 12.00K $13.56K Direct
Feb 24, 25
MARIANI PETER J
Chief Financial Officer
CONVERSION 32.63K $36.87K Direct
Feb 24, 25
CHAN PHILLIP P
Chief Executive Officer
CONVERSION 34.17K $38.61K Direct
What this is, and what it is not

These are SEC Form 4 filings — officers, directors and 10% owners reporting their own trades in the company's stock. Filing is due within two business days of the transaction, so this lags reality by days, and the provider adds its own lag on top.

A sale is not automatically bearish. Executives sell on scheduled 10b5-1 plans, to cover tax on vesting equity, and to diversify. Purchases with cash are generally the more informative signal, and they are far rarer.

This does not include congressional or senate trading. That comes from STOCK Act disclosures filed with the Senate eFD system and the House Clerk, which this data source does not carry.

Free account required

Officer and director trades in their own stock, straight from Form 4 filings.

Insider holders

6 reporting
NameRelationShares heldLatest
BATOR MICHAEL G.
Director 151.27K Conversion of Exercise of derivative security
CAPPONI VINCENT J
President 40.39K Purchase
CHAN PHILLIP P
Chief Executive Officer 101.00K Purchase
DELIARGYRIS EFTHYMIOS
Officer 473.02K Stock Award(Grant)
MARIANI PETER J
Chief Financial Officer 638.11K Purchase
SOBEL ALAN D
Director 9.89K Purchase

Fundamentals

TTM · reported
Market cap$12.15M
Enterprise value$37.46M
Revenue (TTM)$37.22M
Gross profit$26.65M
EBITDA$-10.35M
Net income$-18.21M
EPS (TTM)$-5.80
Free cash flow$-3.51M
Total cash$4.41M
Total debt$29.43M
Book value / share$-0.24
Shares outstanding3.15M
Float2.68M
Short % of float4.15%
Dividend yield0.00%
Beta (5Y)1.37

Valuation & profitability ratios

Account required
Trailing P/E—
Forward P/E—
PEG ratio—
Price / sales—
Price / book—
EV / revenue1.01
EV / EBITDA-3.62
Gross margin71.61%
Operating margin-24.58%
Profit margin-48.94%
Return on equity-336.21%
Return on assets-17.12%
Debt / equity—
Current ratio0.66
Free account required

Fourteen ratios including P/E, PEG, EV/EBITDA, margins and return on equity.

Financial statements

As reported · 5 years · 6 quarters
Blank means not reported, not zero
Line item2025202420232022YoY
Total revenue $37.06M$35.59M$31.08M$29.36M +4.1%
Operating revenue $37.06M$35.59M$31.08M$29.36M +4.1%
Cost of revenue $10.57M$10.71M$9.13M$13.96M -1.3%
Gross profit $26.49M$24.89M$21.95M$15.40M +6.4%
Research & development $5.08M$7.61M$15.59M$15.12M -33.2%
Selling, general & admin $35.65M$33.73M$38.31M$37.14M +5.7%
Total operating expense $40.73M$41.34M$53.90M$46.93M -1.5%
Operating income -$14.24M-$16.45M-$31.95M-$31.52M +13.5%
Net interest income -$2.61M-$1.40M-$157.89K$132.60K -86.7%
Pre-tax income -$8.60M-$22.41M-$30.06M-$33.91M +61.6%
Tax provision -$401.00K-$1.69M-$813.74K-$1.09M +76.3%
Net income -$8.20M-$20.72M-$29.25M-$32.81M +60.4%
Net income to common -$8.20M-$20.72M-$29.25M-$32.81M +60.4%
Basic EPS -2.60-7.60-13.00-14.93 +65.8%
Diluted EPS -2.60-7.60-13.00-14.93 +65.8%
EBIT -$5.99M-$21.01M-$29.90M-$31.52M +71.5%
EBITDA -$4.36M-$19.27M-$27.88M-$30.39M +77.4%
Basic shares 3.11M2.72M2.23M2.19M +14.3%
Diluted shares 3.11M2.72M2.23M2.19M +14.3%

Options analytics

Account required
Put / call volume
—
—
Put / call open interest
—
Positioning, not flow
Max pain
7.50
+94.5% from spot
ATM implied vol
—
Nearest strike to spot
Skew (10% OTM)
—
—
Call volume
0
Contracts, this expiry
Put volume
0
Contracts, this expiry
Heaviest call OI
—
—
Heaviest put OI
7.50
3 contracts

Max pain is the strike at which the largest dollar value of open contracts expires worthless. It describes current positioning; it is not a forecast and it moves as open interest changes.

Free account required

Put/call ratios, max pain, implied volatility skew and where open interest is concentrated.

Earnings

History & consensus estimates
Reported vs expected · EPS
QuarterEst.ActualSurprise
Jun 2026 -0.90-1.40 -55.6%
Mar 2026 -1.10-1.60 -45.5%
Dec 2025 -1.00-1.80 -80.0%
Sep 2025 -0.93-1.00 -7.1%
Forward consensus
PeriodEPSAnalystsRevenueGrowth
Current quarter -0.90 2 $9.91M +4.5%
Next quarter -0.70 2 $10.46M +13.3%
Current year -4.40 2 $38.88M +4.9%
Next year 0.00 1 $44.16M +13.6%

Analyst targets & ownership

Account required
Mean target$47.50
High target$80.00
Low target$15.00
Implied upside1131.97%
Analyst count2
ConsensusNONE
Strong buy / Buy0 / 0
Hold1
Sell / Strong sell0 / 0
Held by insiders16.25%
Held by institutions25.53%
Institutions holding55
Free account required

Price targets, consensus spread, insider and institutional ownership.

Moving averages & technicals

Computed from 2Y daily closes
SMA 10
4.06
-5.07% from price
SMA 20
4.93
-21.72% from price
SMA 50
6.28
-38.57% from price
SMA 100
7.38
-47.76% from price
SMA 200
10.27
-62.47% from price
EMA 12
4.35
-11.45% from price
EMA 26
5.11
-24.59% from price
EMA 50
6.01
-35.83% from price
RSI (14)
25.4
Oversold
MACD (12,26,9)
-0.76
Hist -0.04
ATR (14)
0.51
13.19% of price
Realised vol 30D
77.7%
Annualised
Bollinger upper
6.78
20, 2σ
Bollinger lower
3.07
20, 2σ
50 / 200 cross
Death
6.28 vs 10.27
Trend bias
Below 200
-62.47%

Options chain

Account required
Expiry
Spot 3.86
Calls
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Puts
StrikeLastBidAskVolOIIV
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
000.000.000.000.00000.0%
Free account required

Every listed expiry, both sides of the book, with volume, open interest and implied volatility.

Risk profile

Daily returns · 1Y window
Beta vs SPY
1.18
More volatile than market
Correlation to SPY
0.19
Largely independent
Realised vol 30D
77.7%
Annualised
Market vol 1Y
13.0%
SPY, annualised
Max drawdown 1Y
-80.2%
Peak to trough
Max drawdown 5Y
-97.3%
Peak to trough
ATR 14
0.51
13.19% of price
Beta (reported)
1.37
5Y monthly, from filing

Short interest

Semi-monthly exchange report · lags by ~2 weeks
Shares short
120.61K
Prior 107.90K
Change vs prior
+11.8%
Shorts adding
% of float
4.15%
Normal
% of shares out
3.83%
Against total outstanding
Days to cover
4.8
Liquid
Float
2.68M
Freely tradeable shares

Exchanges publish short interest twice a month with a settlement lag, so this is roughly two weeks behind. Days to cover divides shares short by average daily volume — it estimates how long covering would take, not whether it will happen.

Rating changes

47 on file
DateFirm ActionFromTo
Mar 26, 26 D. Boral Capital MAINTAINED Buy Buy
Jan 12, 26 D. Boral Capital MAINTAINED Buy Buy
Dec 16, 25 D. Boral Capital MAINTAINED Buy Buy
Nov 14, 25 D. Boral Capital MAINTAINED Buy Buy
Nov 14, 25 HC Wainwright & Co. MAINTAINED Neutral Neutral
Sep 16, 25 D. Boral Capital MAINTAINED Buy Buy
Aug 20, 25 D. Boral Capital MAINTAINED Buy Buy
Aug 8, 25 D. Boral Capital MAINTAINED Buy Buy
Jul 21, 25 D. Boral Capital MAINTAINED Buy Buy
Jun 25, 25 D. Boral Capital MAINTAINED Buy Buy
May 15, 25 D. Boral Capital MAINTAINED Buy Buy
May 15, 25 HC Wainwright & Co. MAINTAINED Neutral Neutral

Dividends & splits

Declared · from the issuer
Forward rate—
Forward yield0.00%
5-year avg yield—
Payout ratio—
Ex-dividend date—
Next pay date—
Last split1:20
Split dateSep 8, 2026

PRIVATE STRATEGY · BY QUALIFICATION

The same data. A different seat.

The research you are reading is the input layer for a discretionary options program we run for a small number of qualified investors. Minimum $1,000,000.