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Celldex Therapeutics, Inc. (CLDX) stock

CLDXNasdaqIn Vitro & In Vivo Diagnostic SubstancesFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 7/30
$28.53−1.62 (-5.37%)

Close on Nov 12, 2026Market cap $2.24BP/E –Yield –

Celldex Therapeutics, Inc. saw revenue fall 93.9% to $158.00K over the twelve months to Sep 30, 2026. Free cash flow was -$259.74M. At the latest close the market valued the company at $2.24B.

Revenue
$158.00K
-93.9% vs. a year earlier
Operating income
-$334.46M
TTM Q3 2026
Free cash flow
-$259.74M
TTM Q3 2026
EPS, diluted
-$4.30
TTM Q3 2026

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026

Valuation

Market cap
$2.24B
P/E ratio
–
Price to sales
14180.00
Price to book
3.45
Dividend yield
–
Free cash flow yield
-11.59%

Fundamentals

Revenue
$158.00K
Net income
-$309.06M
EPS, diluted
-$4.30
Free cash flow
-$259.74M
Book value per share
$8.27
Diluted shares
79M

Trading

Next earnings
Feb 24, 2027 (estimated, after the close)
Previous close
$30.15
Open
$29.72
Day's range
$28.46 – $30.01
Volume
867,096
Average volume (20 days)
981,709
Index membership
Russell 2000 (since Jun 2021), Russell 3000 (since Aug 2021)
Beta (5 years)
1.32
52-week range
$22.33 – $45.14
RSI (14 days)
42.0
Volatility (1 year)
52.4%
Relative volume
0.70×
WACC
11.5%

On 1 of our idea list: Institutions accumulating

Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2010, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.

PeriodCLDXS&P 500DifferenceCLDX per yearS&P 500 per year
1 month-3.1%-2.7%−0.4 pts
3 months-36.4%-1.7%−34.7 pts
Year to date+5.0%+11.9%−6.9 pts
1 year+17.6%+12.0%+5.7 pts
3 years+5.9%+78.2%−72.3 pts+1.9%+21.2%
5 years-32.0%+73.2%−105.3 pts-7.4%+11.6%
10 years-56.0%+309.6%−365.6 pts-7.9%+15.1%

Fifteen years at a glance

Fiscal years 2011 to 2025 and trailing twelve months, USD

Revenue

$158.00K-93.9% YoY

Gross profit

–

Operating income

-$334.46M

Net income

-$309.06M

EPS, diluted

-$4.30

Free cash flow

-$259.74M
Reported periodTrailing twelve months

Press releases

Releases Celldex Therapeutics filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About Celldex Therapeutics

In Vitro & In Vivo Diagnostic Substances

Celldex Therapeutics is a biopharmaceutical company that investigates mast cell biology and develops therapeutic antibody treatments. Its product pipeline consists of monoclonal and bispecific antibodies designed to treat severe inflammatory, allergic, and autoimmune conditions. The company's lead drug candidate is barzolvolimab, a monoclonal antibody that inhibits the KIT receptor to reduce mast cell activity across multiple skin disorders. It also develops CDX-622, a bispecific antibody candidate targeting inflammatory pathways. Celldex Therapeutics aims to serve patients suffering from severe mast cell-mediated diseases, including chronic spontaneous urticaria, chronic inducible urticaria, prurigo nodularis, and atopic dermatitis.

Company profile, executives and history

Celldex Therapeutics stock: common questions

What is Celldex Therapeutics's stock price?

CLDX closed at $28.53 on Nov 12, 2026, down 5.37% on the day. Over the past 52 weeks it traded between $22.33 and $45.14.

What is Celldex Therapeutics's market cap?

Celldex Therapeutics was worth $2.24B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.

What is CLDX's P/E ratio?

Celldex Therapeutics lost money over the twelve months to Sep 30, 2026 (diluted EPS -$4.30), so it has no meaningful P/E ratio.

How much revenue does Celldex Therapeutics make?

Celldex Therapeutics reported revenue of $158.00K for the twelve months to Sep 30, 2026, down 93.9% from a year earlier.

Does Celldex Therapeutics pay a dividend?

No. Celldex Therapeutics has not paid a cash dividend over the last twelve months.

When does Celldex Therapeutics report earnings next?

Celldex Therapeutics is expected to report Q4 FY2026 results on Feb 24, 2027, after the close. The date is estimated from its past reporting pattern until the company confirms it.

How has CLDX stock performed over the past year?

Including dividends, CLDX returned +17.6% over the past year, against +12.0% for the S&P 500.

How many CLDX shares are sold short?

10M shares were sold short at the latest FINRA report, 12.71% of the float, or 10.3 days of average trading volume.

Who are Celldex Therapeutics's competitors?

Companies most similar to Celldex Therapeutics by business, industry and size include AVTX, ABPO, ARTV, PVCT, IMA.

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