your badges 52W Range $3–$6 89% of range Analyst Rating BUY 10 analysts Price Target $6 P/E 587.0 ROE -18.5% Net Profit Margin -39.0%

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

03
Price $5.87
Market Cap (MRQ) $763M
P/E 587.0
EPS $-0.09
Revenue $201M
ROE -18.5%
52W Range $3–$6

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

04
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10-Year Performance Revenue, net income, margins and EPS trends

06
Revenue$201M
2020-12-31 → 2025-12-31
EPS$-0.09
2020-12-31 → 2023-12-31
Free Cash Flow$-9M
2021-12-31 → 2025-12-31
Net margin-39.0%
2021-12-31 → 2025-12-31
Valuation & Ratios 07–12

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

Metric 5Y trend CTKB 5Y avg Peer Median Verdict
P/E 587.05Y avg ≈390.8 ≈390.8 · ·
P/S (TTM) 3.75Y avg ≈204.6 ≈204.6 3.8 Undervalued
P/B (MRQ) 2.45Y avg ≈3.1 ≈3.1 3.0 Undervalued
Price / FCF (TTM) -63.25Y avg ≈1998.1 ≈1998.1 · ·
Price / Cash Flow (TTM) -126.45Y avg ≈95.7 ≈95.7 · ·
Price / Tangible Book (MRQ) 2.55Y avg ≈3.4 ≈3.4 · ·

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 -27.9%
Next Report Nov 03, 2026
PeriodReportEPS ActualEPS EstSurprise
June 30, 2026 Aug 12, 2026 $-0.08 $-0.09 7.7%
March 31, 2026 May 13, 2026 $-0.15 $-0.10 -52.1%
Dec. 31, 2025 $-0.04 $-0.02 -96.1%
Sept. 30, 2025 $-0.04 $-0.05 25.4%
June 30, 2025 $-0.04 $-0.07 44.0%
March 31, 2025 $-0.09 $-0.05 -96.1%

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

15
Income Statement 18
Metric Trend 202520242023202220212020
Revenue $201M$200M$193M$164M$2M$710.0K
Cost of Revenue $97M$89M$84M$63M$49M$41M
Gross Profit $104M$111M$109M$101M$79M$52M
R&D Expense $36M$39M$44M$35M$24M$14M
SG&A Expense $59M$43M$44M$35M$21M$9M
Operating Expenses $145M$132M$137M$103M$70M$38M
Operating Income $-40M$-21M$-28M$-2M$9M$14M
Interest Expense ··$2M$3M$2M$333.0K
Interest Income $2M$5M$6M$5M$49.0K$110.0K
Other Non-op $9M$4M$8M$1M$-2M$994.0K
Pretax Income $-30M$-6M$-16M$1M$6M$14M
Income Tax $37M$320.0K$-4M$-1M$3M$-5M
Net Income $-67M$-6M$-12M$2M$3M$19M
EPS (Basic) ··$-0.09$0.02$0.00$0.11
EPS (Diluted) ··$-0.09$0.02$0.00$0.10
Shares (Basic) 127,745,939130,611,330135,283,044134,510,83176,741,85829,126,792
Shares (Diluted) 127,745,939130,611,330135,283,044138,562,11181,542,72932,599,847
EBITDA $-33M$-13M$-22M$688.0K$10M·
Balance Sheet 26
Metric Trend 202520242023202220212020
Cash & Equivalents $91M$99M$167M$297M$365M$165M
Receivables $63M$61M$56M$49M$30M$17M
Inventory $48M$44M$61M$48M$32M$23M
Prepaid Expense $20M$14M$13M$13M$5M$2M
Other Current Assets $3M$2M$2M$4M$708.0K$445.0K
Current Assets $392M$396M$392M$454M$432M$209M
PP&E (Net) $18M$18M$18M$14M$6M$2M
PP&E (Gross) $30M$27M$24M$17M$8M$3M
Accum. Depreciation $12M$9M$6M$3M$2M$934.0K
Goodwill $17M$17M$16M$10M$10M$476.0K
Intangibles $17M$20M$23M$4M$5M$274.0K
Other Non-current Assets $7M$5M$3M$3M$2M$1M
Total Assets $462M$500M$494M$519M$463M$220M
Accounts Payable $23M$21M$20M$21M$15M$9M
Accrued Liabilities $23M$21M$20M$21M$15M$9M
Current Liabilities $78M$68M$56M$49M$33M$27M
Capital Leases $14M$8M$9M$12M$0·
Other Non-current Liabilities $2M$2M$2M$2M$1M$737.0K
Total Liabilities $120M$104M$101M$94M$58M$42M
Common Stock $129.0K$129.0K$131.0K$135.0K$126.0K$23.0K
Paid-in Capital $441M$431M$423M$443M$424M$6M
Retained Earnings $-102M$-35M$-29M$-17M$-20M$-23M
AOCI $2M$16.0K$-1M$-697.0K$897.0K$65.0K
Stockholders' Equity $342M$396M$393M$426M$405M$-16M
Liabilities + Equity $462M$500M$494M$519M$463M$220M
Shares Outstanding 128,550,136129,205,901130,714,906135,365,381133,749,66331,241,916
Cash Flow 15
Metric Trend 202520242023202220212020
D&A $8M$7M$6M$2M$1M$603.0K
Stock-based Comp $25M$27M$22M$17M$7M$611.0K
Deferred Tax $34M$-3M$0$0$-2M$-7M
Amort. of Intangibles $4M$4M$3M$800.0K$300.0K$71.0K
Other Non-cash $-4M$225.0K$-638.0K$-23M$-4M·
Operating Cash Flow $-5M$25M$5M$-12M$5M$15M
CapEx $4M$4M$5M$10M$4M$2M
Investing Cash Flow $10M$-83M$-94M$-56M$-21M$-2M
Stock Repurchased $15M$22M$44M$0$0·
Net Stock Activity $-15M$-22M$-44M···
Financing Cash Flow $-13M$-16M$-42M$6M$214M$123M
Net Change in Cash $-8M$-69M$-132M$-65M$198M$136M
Taxes Paid $2M$4M$5M$10M$3M$2M
Free Cash Flow $-9M$22M$633.0K$-22M$266.0K·
Levered FCF ··$-968.5K$-27M$-621.5K·
Profitability 8
Metric Trend 202520242023202220212020
Gross Margin 51.8%55.4%56.7%61.6%61.9%·
Operating Margin -20.0%-10.2%-14.4%-1.1%7.2%·
Net Margin -33.0%-3.0%-6.3%1.5%2.4%·
Pretax Margin -14.8%-2.8%-8.1%0.77%4.6%·
EBITDA Margin -16.3%-6.6%-11.3%0.42%8.1%·
ROA -13.9%-1.2%-2.4%0.51%0.89%·
ROE -18.5%-1.5%-3.0%0.59%0.75%·
ROIC -26.4%-5.5%-5.5%-0.84%1.1%·
Liquidity & Solvency 3
Metric Trend 202520242023202220212020
Current Ratio 5.05.97.09.313.0·
Quick Ratio 2.02.44.07.011.9·
Interest Coverage ··-13.4-0.75.3·
Efficiency 3
Metric Trend 202520242023202220212020
Asset Turnover 0.40.40.40.30.4·
Inventory Turnover 2.11.71.51.61.8·
Receivables Turnover 3.33.43.74.25.5·
Per Share 5
Metric Trend 202520242023202220212020
Book Value / Share $2.66$3.06$3.01$3.14$3.03·
Revenue / Share $1.58$1.53$1.43$1.18$1.57·
Cash Flow / Share $-0.04$0.19$0.04$-0.09$0.06·
Cash / Share $0.71$0.76$1.28$2.19$2.73·
EPS (TTM) $0.01$0.01$-0.09$0.02$0.00·
Growth Rates 4
Metric Trend 202520242023202220212020
Revenue YoY 0.52%3.9%17.7%7421.1%207.2%·
Revenue CAGR 3Y 7.1%351.3%547.8%···
Revenue CAGR 5Y 209.5%·····
Net Income YoY ···-17.9%-84.4%·
Valuation (TTM) 10
Metric Trend 202520242023202220212020
Revenue TTM $201M$200M$193M$164M$2M·
Net Income TTM $-67M$-6M$-12M$2M$3M·
Market Cap $649M$839M$1.19B$1.38B$2.18B·
P/E 505.0649.0-101.3510.5··
P/S 3.24.26.28.41000.8·
P/B 1.92.13.03.25.4·
P / Tangible Book 2.12.33.43.45.6·
P / Cash Flow -138.533.0225.7-113.0471.4·
P / FCF -74.038.41883.3-62.98206.0·
Earnings Yield 0.20%0.15%-0.99%0.20%0.00%·

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

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

16
Metric 2025-12-312024-12-312023-12-312022-12-312021-12-31
Revenue $201M $200M $193M $164M $2M
Gross Margin % 51.8% 55.4% 56.7% 61.6% 61.9%
Operating Margin % -20.0% -10.2% -14.4% -1.1% 7.2%
Net Income $-67M $-6M $-12M $2M $3M
Diluted EPS · · $-0.09 $0.02 $0.00

Institutional owners (13F) 160 filers · $388.1M total · As of Sept. 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 160
Value held $388.1M
New positions 30
Exited positions 38
Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
30 (+3 vs prior Q) 38 (+27 vs prior Q) 45 (-21 vs prior Q) 63 (+14 vs prior Q) -3.0M

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
BlackRock, Inc. $42,433,388 9,578,643 10.93% Shares
MILLENNIUM MANAGEMENT LLC $41,367,384 9,338,010 10.66% Shares
VANGUARD GROUP INC $37,751,160 7,475,477 9.73% Shares
Boston Partners $33,942,877 7,660,943 8.75% Shares
HHLR ADVISORS, LTD. $29,490,643 6,657,030 7.60% Shares
Topline Capital Management, LLC $27,835,684 6,283,450 7.17% Shares
VANGUARD CAPITAL MANAGEMENT LLC $21,882,415 4,939,597 5.64% Shares
GEODE CAPITAL MANAGEMENT, LLC $13,557,155 3,059,573 3.49% Shares
DIMENSIONAL FUND ADVISORS LP $11,589,081 2,616,257 2.99% Shares
STATE STREET CORP $11,367,916 2,566,121 2.93% Shares
GOLDMAN SACHS GROUP INC $9,602,092 2,167,515 2.47% Shares
ROYCE & ASSOCIATES LP $9,221,395 2,081,579 2.38% Shares
Russell Investments Group, Ltd. $6,695,120 1,511,315 1.73% Shares
BANK OF AMERICA CORP /DE/ $5,826,921 1,315,332 1.50% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $5,057,253 1,141,592 1.30% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $4,754,511 1,073,253 1.23% Shares
NORTHERN TRUST CORP $4,444,592 1,003,294 1.15% Shares
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $4,314,080 973,833 1.11% Shares
JANE STREET GROUP, LLC $4,014,298 906,162 1.03% Shares
TUDOR INVESTMENT CORP ET AL $3,711,955 837,913 0.96% Shares
AQR CAPITAL MANAGEMENT LLC $3,605,891 813,971 0.93% Shares
VANGUARD FIDUCIARY TRUST CO $3,281,133 740,662 0.85% Shares
CITADEL ADVISORS LLC $3,196,112 721,470 0.82% Shares
MORGAN STANLEY $3,108,937 701,792 0.80% Shares
Qube Research & Technologies Ltd $3,055,907 689,821 0.79% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $3,019,953 681,705 0.78% Shares
D. E. Shaw & Co., Inc. $2,964,476 669,182 0.76% Shares
RENAISSANCE TECHNOLOGIES LLC $2,929,559 661,300 0.75% Shares
FMR LLC $2,234,426 504,385 0.58% Shares
MARSHALL WACE, LLP $1,956,749 441,704 0.50% Shares
Point72 Asset Management, L.P. $1,871,059 422,361 0.48% Shares
Jain Global LLC $1,822,790 411,465 0.47% Shares
Bank of New York Mellon Corp $1,645,422 371,427 0.42% Shares
AMERICAN CENTURY COMPANIES INC $1,294,016 292,103 0.33% Shares
Nuveen, LLC $1,282,109 289,415 0.33% Shares
Connor, Clark & Lunn Investment Management Ltd. $1,182,535 266,938 0.30% Shares
JACOBS LEVY EQUITY MANAGEMENT, INC $1,070,204 241,581 0.28% Shares
BNP PARIBAS FINANCIAL MARKETS $952,494 215,010 0.25% Shares
Y-Intercept (Hong Kong) Ltd $855,557 193,128 0.22% Shares
Invesco Ltd. $822,522 185,671 0.21% Shares
TWO SIGMA INVESTMENTS, LP $745,206 168,218 0.19% Shares
Numerai GP LLC $706,430 159,465 0.18% Shares
FRANKLIN RESOURCES INC $691,350 156,061 0.18% Shares
RHUMBLINE ADVISERS $678,777 153,225 0.17% Shares
CenterBook Partners LP $660,867 149,180 0.17% Shares
Jump Financial, LLC $656,007 148,083 0.17% Shares
XTX Topco Ltd $632,263 142,723 0.16% Shares
ALLIANCEBERNSTEIN L.P. $616,380 141,048 0.16% Shares
JPMORGAN CHASE & CO $615,690 141,864 0.16% Shares
Cubist Systematic Strategies, LLC $542,566 156,359 0.14% Shares

Show all 160 institutional owners →

Activists & 5%+ owners 1 position

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
RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah, RA Capital Healthcare Fund, L.P. ×4 filings Sept. 19, 2023 · 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 19 insiders · 10 officers · 11 directors

19
Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Wenbin Jiang PRESIDENT AND CEO Aug. 18, 2026 M 5,561,029 0 0 $0
William D. Mccombe Chief Financial Officer Aug. 18, 2026 M 134,693 0 0 $0
Patrick Jeanmonod CHIEF FINANCIAL OFFICER March 11, 2024 M 97,465 0 0 $0
Paul Christopher Williams CHIEF OPERATING OFFICER Aug. 19, 2024 M 16,473 0 0 $0
Ming Yan CHIEF TECHNOLOGY OFFICER Aug. 18, 2026 M 4,821,870 0 0 $0
Ilan Feuchtwang Chief Legal Officer, Secretary Aug. 10, 2026 A · 0 0 $0
Philippe Busque SVP, GLOBAL SALES AND SERVICES May 18, 2026 M 43,466 0 0 $0
Valerie Barnett CHIEF LEGAL OFFICER May 18, 2026 M 150,012 0 0 $0
Allen Poirson SVP BUS. AND CORP. DEV. Nov. 18, 2024 M 59,981 0 0 $0
Jonathan Todd Garland Chief Commercial Officer Aug. 18, 2023 M 8,763 0 0 $0
Michael Holder Director Aug. 18, 2026 M 62,875 0 0 $0
Richard Chin Director Aug. 18, 2026 M 28,499 0 0 $0
Glenn P Muir Director Aug. 18, 2026 M 3,086 0 0 $0
Vera Imper Director June 10, 2026 M 59,679 0 0 $0
Jack Ball Director June 10, 2026 M 86,678 0 0 $0
Deborah J Neff Director June 10, 2026 M 59,679 0 0 $0
Don M Hardison Director June 5, 2025 M 15,706 0 0 $0
Gisele Dion Director June 14, 2023 A 5,000 0 0 $0
Feng Deng Director July 22, 2021 C 443,800 0 0 $0

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

ETF ownership Held by 21 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
IBB · iShares Trust 0.04% 911,338 SH Sept. 11, 2026 Daily
VTWV · VANGUARD SCOTTSDALE FUNDS 0.03% 106,025 SH Aug. 19, 2026 Daily
PRFZ · Invesco Exchange-Traded Fund Trust 0.03% 121,651 SH Oct. 2, 2026 Daily
VTWO · VANGUARD SCOTTSDALE FUNDS 0.02% 700,141 SH Aug. 19, 2026 Daily
IWM · iShares Trust 0.02% 3,106,810 SH Sept. 11, 2026 Daily
RSSL · Global X Funds 0.02% 58,111 NS July 31, 2026 N-PORT
VXF · VANGUARD INDEX FUNDS 0.01% 1,299,836 SH Aug. 19, 2026 Daily
VHT · VANGUARD WORLD FUND 0.01% 325,613 SH Aug. 19, 2026 Daily
DFAS · Dimensional ETF Trust 0.01% 292,301 NS July 31, 2026 N-PORT
DFAC · Dimensional ETF Trust 0.00% 372,840 NS July 31, 2026 N-PORT
DXUV · Dimensional ETF Trust 0.00% 3,616 NS July 31, 2026 N-PORT
DFSU · Dimensional ETF Trust 0.00% 10,300 NS July 31, 2026 N-PORT
DCOR · Dimensional ETF Trust 0.00% 12,189 NS July 31, 2026 N-PORT
DFAU · Dimensional ETF Trust 0.00% 26,782 NS July 31, 2026 N-PORT
DFSV · Dimensional ETF Trust 0.00% 18,244 NS July 31, 2026 N-PORT
ITOT · iShares Trust 0.00% 119,354 SH Sept. 11, 2026 Daily
IWV · iShares Trust 0.00% 28,666 SH Sept. 11, 2026 Daily
DFUS · Dimensional ETF Trust 0.00% 30,693 NS July 31, 2026 N-PORT
VTI · VANGUARD INDEX FUNDS 0.00% 3,525,848 SH Aug. 19, 2026 Daily
VTHR · VANGUARD SCOTTSDALE FUNDS 0.00% 9,813 SH Aug. 19, 2026 Daily
IWN · iShares Trust · 1,134,041 SH Sept. 11, 2026 Daily

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

21
rating · 10 analysts BUY
Median target $5.00 -14.8%
3 30.0% Strong Buy
4 40.0% Buy
3 30.0% Hold
0 0.0% Sell
0 0.0% Strong Sell

12-Month Price Target

4 analysts · 2026-09-29

Mean target $5.56 -5.2%

Now Current price $5.87
Low$4.75 Mean$5.56 High$7.50

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
CTKB $649M 505.0 0.52% -33.0% -18.5% 51.8%
AZTA $1.32B -23.5 3.5% -9.4% -3.3% 45.5%
PSNL $816M -8.7 -17.7% -116.7% -36.0% ·
CYRX $479M 6.9 12.4% 44.4% 15.3% 47.1%
DNA $484M -1.5 -25.1% -183.8% -55.8% ·
PACB $565M -1.0 3.9% -341.5% -1634.9% 28.6%
MLAB $489M 73.1 3.4% 2.7% 3.7% 63.5%
OABI · · · · · ·
TKNO $204M -11.9 7.3% -42.6% -23.8% 33.2%
QSI · · · · · ·
LAB $495M -6.4 -6.2% -87.8% -17.6% 49.9%

Latest News Recent headlines mentioning this company

23
Cytek Biosciences Q1 Earnings Call Highlights Yahoo Finance · 4 months, 3 weeks ago

My Metrics Your personal watchlist — selected rows from Full Fundamentals

26

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Source: SEC 10-Q filed Aug 5, 2026