your badges 52W Range $4–$20 2% of range Analyst Rating HOLD 6 analysts Price Target $48 +1073% upside P/E -14.0 ROE -336.2% Net Profit Margin -48.9%

CTSO Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

03
Price $4.05
Market Cap (MRQ) $255M
P/E (TTM) -14.0
EPS (TTM) $-0.29
Revenue (TTM) $37M
ROE (TTM) -336.2%
Debt/Equity (MRQ) -23.0
52W Range $4–$20

CTSO Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

04
range
bars

Bar granularity adapts to the selected period — hover the chart to see open/high/low/close for a bar.

Stock splits 2
Ex-date Split Type
Sept. 8, 2026 1-for-20 Reverse
Dec. 5, 2014 1-for-25 Reverse

10-Year Performance Revenue, net income, margins and EPS trends

06
Revenue$37M
2022-12-31 → 2025-12-31
EPS$-0.13
2022-12-31 → 2025-12-31
Free Cash Flow·
2022-12-31 → 2024-12-31
Net margin-48.9%
2022-12-31 → 2024-12-31
Valuation & Ratios 07–12

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric 5Y trend CTSO 5Y avg Peer Median Verdict
P/E (TTM) -14.0 · · ·
P/S (TTM) 6.8 · 2.8 Undervalued
P/B (MRQ) -338.9 · · ·
Price / FCF (TTM) -27.4 · · ·
Price / Cash Flow (TTM) -27.8 · · ·
Price / Tangible Book (MRQ) -70.4 · · ·

Peer median is calculated on a standardized basis per metric and may not always match the TTM/MRQ basis shown for this stock.

value · ≈ 5Y avg · industry median · verdict relative to median

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

14
Avg Surprise -8.9%
Next Report Nov 03, 2026
PeriodReportEPS ActualEPS EstSurprise
June 30, 2026 Aug 10, 2026 $-1.40 $-0.92 -52.5%
March 31, 2026 May 13, 2026 $-1.60 $-1.12 -42.6%
Dec. 31, 2025 $-0.09 $-0.05 -76.5%
Sept. 30, 2025 $-0.05 $-0.05 -5.0%
June 30, 2025 $0.03 $-0.05 158.8%
March 31, 2025 $-0.02 $-0.07 72.0%
Dec. 31, 2024 $-0.14 $-0.06 -116.7%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

15
Income Statement 16
Metric Trend 202520242023202220212020201920182017201620152014
Revenue $37M$36M$31M$35M$43M$41M$25M$23M$15M$10M$5M$4M
Cost of Revenue $11M$11M$9M$14M$11M$11M$7M$7M$6M$4M$2M$2M
Gross Profit $26M$25M$22M$21M$32M$30M$18M$15M$10M$6M$3M$2M
R&D Expense ··$16M$15M$16M$9M$12M$8M$3M$4M$4M$2M
SG&A Expense $36M$34M$38M$34M$36M$28M$22M$21M$15M$12M$7M$6M
Operating Expenses $41M$41M$54M$52M$55M$40M$37M$31M$19M$17M$12M$9M
Operating Income $-15M$-16M$-32M$-32M$-23M$-10M$-19M$-16M$-10M$-11M$-9M$-7M
Other Non-op $6M$-6M$2M$-2M$-3M$1M$-1M$-2M$705.1K$-589.9K$-498.0K$-3M
Pretax Income $-9M$-22M$-30M$-34M$-25M$-9M$-20M$-18M$-9M$-12M$-10M$-10M
Income Tax $-401.0K$-2M$-813.7K$-1M$-736.0K$-1M$-1M$-619.5K$-676.7K$-318.6K$-324.6K$-385.6K
Net Income $-8M$-21M$-29M$-33M$-25M$-8M$-19M$-17M$-8M$-12M$-9M$-9M
EPS (Basic) $-0.13$-0.38$-0.65$-0.75$-0.57$-0.20$-0.60·····
EPS (Diluted) $-0.13$-0.38$-0.65$-0.75$-0.57$-0.20$-0.60·····
Shares (Basic) 62,231,77154,434,60944,656,39143,573,21543,359,18638,818,99032,255,253·····
Shares (Diluted) 62,231,77154,434,60944,656,39143,573,21543,359,18638,818,99032,255,253·····
EBITDA ·$-17M$-31M$-32M$-23M$-10M$-19M$-16M$-10M$-11M$-9M$-7M
Balance Sheet 26
Metric Trend 202520242023202220212020201920182017201620152014
Cash & Equivalents $6M$3M$14M$22M$52M$71M$12M$22M$17M$5M$5M$4M
Short-term Investments ·········$0$2M$2M
Receivables $8M$7M$6M$6M$5M$5M$4M$4M$2M$1M$648.9K$819.2K
Inventory $5M$3M$3M$3M$5M$3M$2M$833.1K$795.7K$834.0K$1M$537.6K
Prepaid Expense $2M$3M$2M$2M$3M$3M$2M$1M$416.0K$315.8K$511.9K$700.5K
Current Assets $21M$22M$25M$34M$64M$82M$21M$28M$21M$8M$10M$8M
PP&E (Net) $8M$9M$10M$11M$5M$2M$2M$2M$1M$569.4K$557.3K$245.8K
PP&E (Gross) $13M$13M$13M$13M$10M$6M$6M$5M$4M$3M$3M$3M
Accum. Depreciation $5M$4M$3M$2M$5M$4M$4M$3M$3M$3M$3M$2M
Intangibles $3M$4M$4M$4M$5M$4M$3M$3M$2M···
Other Non-current Assets $53.0K$50.0K$4M$4M$5M$4M$3M$3M$2M$1M$836.7K$615.8K
Total Assets $44M$47M$53M$63M$90M$90M$27M$34M$24M$10M$11M$8M
Accounts Payable $3M$3M$4M$2M$3M$2M$2M$1M$1M$1M$684.6K$698.3K
Accrued Liabilities ··$497.6K$850.6K$1M$631.6K$629.2K$479.8K$310.2K$44.9K··
Current Liabilities $10M$10M$14M$10M$14M$10M$10M$7M$8M$4M$3M$5M
Capital Leases $12M$12M$13M$13M$13M$581.6K$642.7K$1M····
Total Liabilities $38M$36M$29M$28M$27M$11M$24M$17M$14M$8M$3M·
Long-term Debt $17M·$5M··$0$15M$10M$10M$5M$0·
Total Debt ·$14M$5M$5M·$0$15M$10M$10M$5M··
Common Stock $63.0K$55.0K$54.2K$43.6K$43.5K$43.2K$32.6K$31.8K$29.0K$25.5K$25.4K$23.3K
Paid-in Capital $321M$311M$306M$287M$283M$278M$192M$186M$163M$144M$140M$128M
Retained Earnings $-312M$-304M$-283M$-254M$-221M$-197M$-189M$-170M$-152M$-144M$-133M$-124M
AOCI $-3M$4M$529.3K$2M$525.6K$-2M$526.0K$288.2K$-361.0K$898.7K$584.3K$227.7K
Stockholders' Equity $6M$11M$23M$35M$63M$79M$3M$17M$10M$1M$10M$7M
Liabilities + Equity $44M$47M$53M$63M$90M$90M$27M$34M$24M$10M$11M$8M
Shares Outstanding 62,804,30554,830,14654,240,26543,635,71543,635,71543,221,99932,616,10731,774,13928,973,67925,483,96625,397,05623,304,640
Cash Flow 15
Metric Trend 202520242023202220212020201920182017201620152014
D&A $1M$1M$1M$882.6K$731.6K$660.8K$581.5K$390.6K$218.3K$161.6K$113.0K$65.5K
Stock-based Comp $3M$4M$4M$3M$4M$4M$2M$4M$3M$3M$382.3K$695.8K
Amort. of Intangibles $262.0K$235.0K··········
Restructuring $510.0K···········
Operating Cash Flow $-12M$-14M$-22M$-28M$-14M$-6M$-17M$-11M$-6M$-7M$-9M$-6M
CapEx $164.0K$284.0K$538.1K$6M$4M$708.4K$698.2K$672.0K$990.7K$140.7K$403.6K$153.2K
Investing Cash Flow $-415.0K$-669.0K$-936.2K$-6M$-4M$-2M$-2M$-2M$-2M$2M$-890.9K$-2M
Debt Issued $2M$15M·$5M·$1M$5M$666.7K$5M$5M$0$0
Net Debt Issued ·$10M·$5M·$-15M$5M$0$5M$5M··
Stock Issued ····$27M$27M$14M$10M$10M···
Net Stock Activity ····$27M$27M$14M$10M$10M···
Financing Cash Flow $9M$9M$14M$5M$715.2K$66M$8M$17M$20M$5M$12M$10M
Net Change in Cash $-2M$-6M$-8M$-30M$-18M$59M$-10M$5M$12M$-71.7K$2M$1M
Taxes Paid $-2M$-881.0K··········
Free Cash Flow ·$-15M$-22M$-34M$-18M$-6M$-17M$-12M$-7M$-7M$-9M$-7M
Profitability 8
Metric Trend 202520242023202220212020201920182017201620152014
Gross Margin ·70.6%61.6%59.8%74.4%73.0%70.5%66.7%63.6%58.5%53.8%48.2%
Operating Margin ·-47.2%-85.9%-90.9%-52.7%-25.3%-76.0%-69.2%-65.0%-120.6%-194.2%-176.6%
Net Margin ·-58.2%-78.4%-94.6%-56.9%-19.1%-77.2%-76.5%-55.8%-125.3%-169.7%-226.1%
Pretax Margin ·-63.0%-80.7%-97.7%-58.6%-21.9%-81.6%-79.2%-60.3%-128.7%-176.5%-235.4%
EBITDA Margin ·-47.2%-85.9%-90.9%-52.7%-25.3%-76.0%-69.2%-65.0%-120.6%-194.2%-176.6%
ROA ·-43.5%-56.5%-43.0%-27.4%-13.4%-62.6%-60.6%-50.1%-114.0%-82.5%-149.0%
ROE ·-169.2%-135.5%-88.1%-36.9%-9.8%-379.6%-93.0%-145.9%-254.8%-107.3%181.0%
ROIC ·-61.8%-107.1%-75.6%-35.3%-11.5%-97.2%-56.0%-45.0%-252.2%-109.0%-176.4%
Liquidity & Solvency 4
Metric Trend 202520242023202220212020201920182017201620152014
Current Ratio ·2.21.83.54.78.12.14.32.61.33.21.7
Quick Ratio ·1.11.42.94.17.51.74.02.51.12.71.2
Debt / Equity ·1.30.20.1·0.04.40.61.0-10.4··
LT Debt / Equity ·1.30.10.1·0.03.90.50.6-8.6··
Efficiency 3
Metric Trend 202520242023202220212020201920182017201620152014
Asset Turnover ·0.70.70.50.50.70.80.80.90.90.50.7
Inventory Turnover ·3.54.23.43.04.65.09.26.83.92.65.4
Receivables Turnover ·5.36.26.88.98.55.97.38.39.26.5·
Per Share 5
Metric Trend 202520242023202220212020201920182017201620152014
Book Value / Share ·$0.20$0.43$0.81$1.44$1.83$0.10$0.53$0.35$-0.02$0.32$0.17
Revenue / Share ·$0.65$0.81$0.80$1.00·······
Cash Flow / Share ·$-0.27$-0.48$-0.65$-0.32·······
Cash / Share ·$0.06$0.26$0.51$1.20$1.65$0.38$0.70$0.60$0.21$0.21$0.15
EPS (TTM) $-0.13$-0.38$-0.65$-0.75$-0.57$-0.20$-0.60$-0.26$-0.26$-0.26$-0.33·
Growth Rates 3
Metric Trend 202520242023202220212020201920182017201620152014
Revenue YoY 4.1%14.5%-10.4%-19.6%5.3%·······
Revenue CAGR 3Y 2.2%-6.2%-8.8%·········
Revenue CAGR 5Y -2.0%···········
Valuation (TTM) 14
Metric Trend 202520242023202220212020201920182017201620152014
Revenue TTM $37M$36M$31M$35M$43M$41M$25M$23M$15M$10M$5M$4M
Net Income TTM $-8M$-21M$-29M$-33M$-25M$-8M$-19M$-17M$-8M$-12M$-9M$-9M
Market Cap ·$50M$60M$67M$182M$344M$126M$257M$188M$139M$141M$232M
Enterprise Value ·$61M$51M$50M·$273M$128M$244M$181M$139M··
P/E -4.9-2.4-1.7-2.1-7.4-39.9-6.4-31.1-25.0-21.0-16.9·
P/S ·1.41.91.94.28.45.011.412.414.629.556.2
P/B ·4.52.61.92.94.336.715.218.4-293.017.258.5
P / Tangible Book 15.06.83.12.23.14.6······
P / Cash Flow ·-3.5-2.8-2.4-13.0-61.4-7.5-23.7-29.1-20.6-15.7-34.8
P / FCF ·-3.4-2.7-2.0-10.3-54.5-7.2-22.3-25.3-20.2-15.0-34.0
EV / EBITDA ·-3.6-1.6-1.6·-26.3-6.8-15.7-18.4-12.1··
EV / FCF ·-4.1-2.3-1.5·-43.2-7.4-21.2-24.3-20.2··
EV / Revenue ·1.71.61.4·6.75.110.911.914.5··
Earnings Yield -20.3%-41.8%-58.6%-48.4%-13.6%-2.5%-15.6%-3.2%-4.0%-4.8%-5.9%·

Most recent period on the left · null values shown as ·

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

16
Metric 2025-12-312024-12-312024-09-302024-06-302024-03-31
Revenue $37M $36M · · ·
Gross Margin % · 70.6% · · ·
Operating Margin % · -47.2% · · ·
Net Income $-8M $-21M · · ·
Diluted EPS $-0.13 $-0.38 · · ·

Institutional owners (13F) 55 filers · $7.6M total · As of June 30, 2026

17

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Holders 55
Value held $7.6M
New positions 7
Exited positions 6
Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
7 (-3 vs prior Q) 6 (-1 vs prior Q) 12 (+3 vs prior Q) 13 (+1 vs prior Q) -320K

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.

Institution Value Shares % of tracked 13F Type
AVENIR CORP $1,940,768 5,189,218 25.56% Shares
VANGUARD GROUP INC $1,408,544 2,204,294 18.55% Shares
NEUBERGER BERMAN GROUP LLC $740,516 1,968,691 9.75% Shares
VANGUARD CAPITAL MANAGEMENT LLC $715,860 1,914,063 9.43% Shares
CM Management, LLC $552,211 1,476,500 7.27% Shares
Skylands Capital, LLC $453,064 1,211,400 5.97% Shares
BlackRock, Inc. $234,577 627,211 3.09% Shares
GEODE CAPITAL MANAGEMENT, LLC $225,239 602,059 2.97% Shares
Sargent Investment Group, LLC $207,853 555,757 2.74% Shares
Pathstone Holdings, LLC $186,966 499,910 2.46% Shares
CIBC Private Wealth Group LLC $161,271 172,649 2.12% Shares
VANGUARD FIDUCIARY TRUST CO $118,246 316,167 1.56% Shares
CIBC Bancorp USA Inc. $64,571 172,649 0.85% Shares
STATE STREET CORP $59,576 159,293 0.78% Shares
OSAIC HOLDINGS, INC. $49,991 134,839 0.66% Shares
UBS Group AG $49,001 131,019 0.65% Shares
NORTHERN TRUST CORP $41,761 111,660 0.55% Shares
RAYMOND JAMES FINANCIAL INC $40,247 107,611 0.53% Shares
NWF Advisory Services Inc. $38,947 104,139 0.51% Shares
RENAISSANCE TECHNOLOGIES LLC $37,407 100,020 0.49% Shares
MORGAN STANLEY $34,160 91,338 0.45% Shares
Key Client Fiduciary Advisors, LLC $29,343 78,457 0.39% Shares
XTX Topco Ltd $20,314 54,316 0.27% Shares
JANE STREET GROUP, LLC $19,525 52,205 0.26% Shares
LPL Financial LLC $18,744 50,119 0.25% Shares
STIFEL FINANCIAL CORP $17,952 48,000 0.24% Shares
BANK OF AMERICA CORP /DE/ $14,468 38,686 0.19% Shares
COUNTRY CLUB BANK /GFN $14,089 15,225 0.19% Shares
Kestra Advisory Services, LLC $10,547 28,200 0.14% Shares
EP Wealth Advisors, LLC $10,472 28,000 0.14% Shares
RITHOLTZ WEALTH MANAGEMENT $10,264 27,443 0.14% Shares
SFMG, LLC $7,480 20,000 0.10% Shares
Creative Planning $7,090 18,956 0.09% Shares
Seelaus Asset Management LLC $6,096 16,300 0.08% Shares
FIRST NATIONAL BANK OF OMAHA $5,811 15,225 0.08% Shares
GOLDMAN SACHS GROUP INC $5,736 15,338 0.08% Shares
Merit Financial Group, LLC $5,721 15,297 0.08% Shares
CITADEL ADVISORS LLC $5,386 14,400 0.07% Call option
Vanguard Global Advisers, LLC $5,186 13,865 0.07% Shares
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $4,180 11,176 0.06% Shares
Tower Research Capital LLC (TRC) $3,823 10,223 0.05% Shares
MARATHON CAPITAL MANAGEMENT $3,740 10,000 0.05% Shares
COMERICA BANK $2,796 4,376 0.04% Shares
FIFTH THIRD BANCORP $1,155 3,090 0.02% Shares
Global Retirement Partners, LLC $882 2,358 0.01% Shares
Rockefeller Capital Management L.P. $618 1,652 0.01% Shares
JPMORGAN CHASE & CO $142 372 0.00% Shares
BARCLAYS PLC $107 287 0.00% Shares
WELLS FARGO & COMPANY/MN $94 250 0.00% Shares
Virtu Financial LLC $27 71,508 0.00% Shares

Show all 55 institutional owners →

Activists & 5%+ owners 2 positions

18

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
Guillermina Vega Montiel July 24, 2006 · Initial filing · SEC
Joseph Bowes July 13, 2006 · Initial filing · SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

Company insiders 23 insiders · 9 officers · 8 directors

19
Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Phillip P. Chan Chief Executive Officer Sept. 15, 2026 P 100,996 4 0 $197,541
Peter J Mariani Chief Financial Officer June 15, 2026 P 638,113 1 0 $44,000
Kathleen P. Bloch Chief Financial Officer April 2, 2024 A 532,941 0 0 $0
Ronald Berger Interim CFO April 4, 2013 A · 0 0 $0
David Lamadrid Chief Financial Officer Sept. 6, 2011 M 7,837,500 0 0 $0
Vincent Capponi President and COO Sept. 14, 2026 P 40,387 2 0 $12,537
Efthymios Deliargyris Chief Medical Officer Aug. 8, 2025 A 473,025 0 0 $0
Eric R. Mortensen Chief Medical Officer Aug. 14, 2019 M 148,932 0 0 $0
Robert Hawes Bartlett Chief Medical Officer Feb. 24, 2017 A 30,000 0 0 $0
Alan D. Sobel Director Sept. 15, 2026 P 9,887 3 0 $15,254
Jiny Kim Director Aug. 8, 2025 A 77,819 0 0 $0
Michael G. Bator Director Aug. 8, 2025 A 151,273 0 0 $0
Edward Raymond Jones Director Aug. 8, 2025 A 88,834 0 0 $0
Kraus Al Director Feb. 6, 2023 M 142,046 0 0 $0
James T. Gunton Director April 8, 2015 A 55,000 0 0 $0
Joseph Rubin Director March 28, 2014 A 167,213 0 0 $0
NJTC INVESTMENT FUND, LP 10% owner April 8, 2015 A 2,554,999 0 0 $0
James F Winchester · June 25, 2008 A · 0 0 $0
Kurt Katz · June 25, 2008 A · 0 0 $0
MILLER WILLIAM R · June 25, 2008 A · 0 0 $0
Martin F Whalen · Dec. 31, 2007 A · 0 0 $0
Margie Chassman · Oct. 28, 2006 J 4,795,000 0 0 $0
Joseph G Bowes · July 6, 2006 C 0 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

ETF ownership Held by 2 ETFs

20

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
VXF · VANGUARD INDEX FUNDS 0.00% 574,463 SH Aug. 19, 2026 Daily
VTI · VANGUARD INDEX FUNDS 0.00% 1,274,363 SH Aug. 19, 2026 Daily

CTSO Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

21
rating · 6 analysts SELL
Median target $47.50 +1072.8%
0 0.0% Strong Buy
0 0.0% Buy
3 50.0% Hold
1 16.7% Sell
2 33.3% Strong Sell

12-Month Price Target

2 analysts · 2026-10-01

Mean target $47.50 +1072.8%

← Below all targets Current price $4.05
Low$15.00 Mean$47.50 High$80.00

Peer comparison (GICS sub-industry) Key metrics vs sector peers

22

FY basis, prices as of each company's last fiscal year-end close.

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
CTSO · -4.9 4.1% · · ·
FEMY $34M -1.2 40.8% -812.3% -505.0% ·
SINT $15M -0.6 -64.7% -1018.1% -299.7% 45.3%
IRIX $20M -4.5 8.2% -8.4% -80.8% 36.5%
AEMD $3M -0.2 · · -134.5% ·
BMRA · -1.8 -16.2% · · ·
NMTC · -9.9 163.5% · · ·
ABT $250.18B 33.7 5.7% 14.7% 13.1% ·

My Metrics Your personal watchlist — selected rows from Full Fundamentals

26

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Source: SEC 10-Q filed Aug 6, 2026