Celldex Therapeutics, Inc. (CLDX)

NASDAQ

$29.37

$-0.93

(-3.07%)

After-Hours

Celldex Therapeutics, Inc. (CLDX) Live Price Chart

Last updated: ⁦2026-10-21 21:53:20⁩. Prices reflect the latest after-hours trading data. Stock price data is sourced from Massive.

Summary

Celldex Therapeutics, Inc. (CLDX) operates in the IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES sector and is listed on NASDAQ. The stock is currently priced at $29.37, with a market capitalization of $2.33B and a P/E ratio of --. Over the past 52 weeks, its price has ranged from $22.10 to $45.14. This page covers its latest market performance, valuation, price trends and company information.

Key Market Data

Market Cap	$2.33B
Open	$30.29
Day's High	$582.60
Day's Low	$1.50
Previous Close	$30.29
Volume	890.37K
Average Volume	1.36M
P/E Ratio	--
52-Week High	$45.14
52-Week Low	$22.10
Dividend Yield	--
Earnings Date	--

Celldex Therapeutics, Inc. (CLDX) After-Hours Stock Price

Celldex Therapeutics, Inc. (CLDX) is trading at $29.37 in after-hours trading as of 2026-10-21 21:39:00, down 3.04% ($0.92) from the regular-session close of $30.29.

After-hours trading shows how investors are pricing CLDX after the regular session closes. The current after-hours price is below the regular-session close, indicating cautious after-hours sentiment.

Celldex Therapeutics, Inc. (CLDX) 7-Day Stock Price Change

Over the past seven days, Celldex Therapeutics, Inc. (CLDX) moved from $29.43 to $29.37, representing a decline of 0.22% ($0.06).

The stock traded between $27.47 and $31.10 during the period. The latest price is near the middle of the 7-day range, indicating range-bound.

The average daily volume was 1.22 million shares, down versus the previous seven-day period, indicating lower trading activity.

CLDX 52-Week Price Position

Position in Range: 31.5%

52W Low$22.10

52W High$45.14

CLDX is currently trading at $29.37, placing it 31.5% of the way from its 52-week low of $22.10 to its 52-week high of $45.14. This percentage reflects the stock's relative position within its 52-week trading range, not its valuation or future performance.

What is Celldex Therapeutics, Inc. (CLDX)?

Celldex Therapeutics Inc is a biopharmaceutical firm focused on mast cell biology and the development of therapeutic antibodies. Its pipeline includes monoclonal and bispecific antibodies aimed at treating severe inflammatory, allergic, autoimmune, and other mast cell-mediated diseases. The company operates in a single operating and reportable segment in the business of development, manufacturing and commercialization of novel therapeutics for human health care.

Celldex Therapeutics, Inc. Information

Industry	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
Employees	198
Exchange	NASDAQ
Company Website	https://www.celldex.com

How to Buy Celldex Therapeutics, Inc. (CLDX) Stock on MEXC

Eligible investors can buy real shares of Celldex Therapeutics, Inc. (CLDX) through MEXC RealStocks. Follow these three steps to open a RealStocks account, transfer USDT, and place a US stock order.

Step 1: Open and Verify Your RealStocks Account

Log in to the MEXC App, go to Trade → RealStocks, and select Open Account. Complete the required account-opening and identity verification process with MEXC's partner licensed broker.

Step 2: Transfer USDT to Your RealStocks Account

Go to Wallets → RealStocks and transfer USDT from your Spot Account to your RealStocks Account. RealStocks are quoted in USD, while account funding can be completed using USDT.

Step 3: Search for CLDX and Place Your Order

Open the RealStocks trading page and search for CLDX. Select a market or limit order, enter the price and quantity as required, review the order details, and submit your order. Once filled, the corresponding real shares will be held in your RealStocks Account.

Frequently Asked Questions (FAQ)

1.What is Celldex Therapeutics, Inc. (CLDX) stock price today?

Celldex Therapeutics, Inc. (CLDX) is currently trading at $ 29.37, down 3.05% ($0.92) from the previous close of $ 30.29. Intraday prices update in real time during regular trading hours.

2.Is CLDX stock going up or down today?

As of 2026-10-21 21:39:00, CLDX is trading at $ 29.37, down 3.05% ($0.92) from its previous close of $ 30.29. The stock has traded between $ 1.50 and $ 582.60 during today’s regular session. Past price movements do not guarantee future results.

3.What is CLDX pre-market price?

As of 2026-10-21 21:39:00, CLDX is trading at $ 30.35 in pre-market trading, up 0.19% ($0.06) from the previous close of $ 30.29. Pre-market prices reflect trading activity before the regular session opens and may experience lower liquidity and higher volatility.

4.What is CLDX after-hours price?

As of 2026-10-21 21:39:00, CLDX is trading at $ 29.37 in after-hours trading, down 3.04% ($0.92) from the regular-session close of $ 30.29. After-hours prices may differ from the regular session’s opening price due to lower liquidity and wider bid-ask spreads.

5.Is CLDX stock trading now?

CLDX trades on the NASDAQ exchange during regular hours, Monday through Friday, 9:30 AM to 4:00 PM ET, excluding public holidays. Pre-market and after-hours trading are also available through select brokers outside these hours.

6.Where does CLDX sit relative to its 52-week high and low?

Over the past 52 weeks, CLDX has traded between a low of $ 22.10 and a high of $ 45.14. At $ 29.37, the stock is positioned 31.5% of the way from its 52-week low to its 52-week high, providing context for its current price within the one-year trading range.

7.What sector is Celldex Therapeutics, Inc. in?

Celldex Therapeutics, Inc. (CLDX) operates in the IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES sector. Sector classification helps investors compare it with companies exposed to similar market trends and competitive conditions.

8.What is Celldex Therapeutics, Inc.'s market capitalization and where is it listed?

Celldex Therapeutics, Inc. is listed on the NASDAQ exchange with a market capitalization of $ 2.33B. Market cap reflects the total market value of all outstanding shares and is commonly used to classify stocks by size.

9.How is CLDX valued in terms of P/E ratio and EPS?

CLDX trades at a P/E ratio of --, based on trailing-twelve-month EPS of $ -3.83. P/E ratio compares the stock price to earnings per share and is a common starting point for assessing valuation relative to peers.

10.Does Celldex Therapeutics, Inc. pay a dividend?

Celldex Therapeutics, Inc. pays an indicated annual cash dividend of $ 0.00 per share, with a current dividend yield of 0.00% based on the latest share price. Dividend policies are subject to change at the board's discretion.