Celldex Therapeutics, Inc. (CLDX) Stock Price History
Historical prices from 2011 to 2026
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Historical Performance
Short-Term Returns
CLDX Stock Price Trajectory (2011–2026)
As of February 28, 2026, Celldex Therapeutics, Inc. (CLDX) trades at $30.09, representing a +46.3% return over the past year. The stock has delivered a +1.3% return over five years, reflecting significant long-term value creation.
The stock reached its all-time high of $3,375.00 on March 7, 2000. From this peak, CLDX has corrected -99.1%, currently trading 24% above its 200-day moving average, indicating continued institutional support.
When compared to Healthcare sector peers REGN (+11.9% 1Y), CNTA (+72.7% 1Y), and IMNM (+132.6% 1Y), CLDX has underperformed the peer group average. Compare CLDX vs REGN →
Historical Price Data
Showing 30 of 3,650 records| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-02-27 | 30.21 | 30.45 | 29.43 | 30.09 | 30 | -1.80% |
| 2026-02-26 | 30.91 | 31.29 | 29.84 | 30.64 | 30 | -0.58% |
| 2026-02-25 | 25.55 | 30.98 | 25.40 | 30.82 | 30 | +24.07% |
| 2026-02-24 | 24.53 | 25.11 | 24.18 | 24.84 | 24 | +2.14% |
| 2026-02-23 | 23.59 | 24.90 | 23.55 | 24.32 | 24 | +5.65% |
| 2026-02-20 | 23.34 | 23.79 | 22.60 | 23.02 | 23 | -2.21% |
| 2026-02-19 | 22.87 | 23.60 | 22.67 | 23.54 | 568K | +2.35% |
| 2026-02-18 | 23.08 | 23.38 | 22.91 | 23.00 | 413K | +0.17% |
| 2026-02-17 | 23.66 | 23.66 | 22.73 | 22.96 | 7K | -0.17% |
| 2026-02-13 | 23.66 | 24.29 | 22.51 | 23.00 | 1.19M | -2.42% |
| 2026-02-12 | 24.57 | 24.78 | 23.09 | 23.57 | 413K | -4.19% |
| 2026-02-11 | 24.72 | 25.02 | 23.62 | 24.60 | 385K | -0.12% |
| 2026-02-10 | 24.69 | 25.24 | 24.46 | 24.63 | 363K | -0.73% |
| 2026-02-09 | 23.74 | 24.88 | 23.12 | 24.81 | 454K | +4.42% |
| 2026-02-06 | 23.15 | 23.98 | 22.33 | 23.76 | 819K | +5.23% |
| 2026-02-05 | 24.04 | 24.34 | 22.55 | 22.58 | 1.22M | -6.96% |
| 2026-02-04 | 25.32 | 25.34 | 24.02 | 24.27 | 598K | -3.58% |
| 2026-02-03 | 24.72 | 25.60 | 24.68 | 25.17 | 818K | +2.07% |
| 2026-02-02 | 24.60 | 25.15 | 24.37 | 24.66 | 736K | +0.24% |
| 2026-01-30 | 24.39 | 24.99 | 23.95 | 24.60 | 568K | -0.36% |
| 2026-01-29 | 24.73 | 25.10 | 24.37 | 24.69 | 401K | -0.32% |
| 2026-01-28 | 26.21 | 26.21 | 24.58 | 24.77 | 360K | -5.57% |
| 2026-01-27 | 26.56 | 26.86 | 25.94 | 26.23 | 347K | -1.28% |
| 2026-01-26 | 25.57 | 26.75 | 25.40 | 26.57 | 899K | +2.51% |
| 2026-01-24 | 26.56 | 26.74 | 25.71 | 25.92 | 348K | 0.00% |
| 2026-01-23 | 26.56 | 26.74 | 25.71 | 25.92 | 361K | -3.46% |
| 2026-01-22 | 26.03 | 26.96 | 25.70 | 26.85 | 323K | +2.60% |
| 2026-01-21 | 25.40 | 26.21 | 25.32 | 26.17 | 399K | +4.10% |
| 2026-01-20 | 25.44 | 25.61 | 25.00 | 25.14 | 464K | -1.99% |
| 2026-01-16 | 25.78 | 26.15 | 25.58 | 25.65 | 676K | -0.16% |
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Start ComparisonFrequently Asked Questions
How has CLDX stock performed recently?
CLDX returned +46.3% over the past year, beating its 5-year annualized CAGR of +1.3%. The stock trades above its 200-day moving average, confirming the uptrend.
What is CLDX's all-time high price?
Celldex Therapeutics, Inc. reached $3375.00 on 2000-03-07. The 52-week high is $31.29. Current 1-year return of +46.3% places the stock closer to historical peaks.
Where can I download CLDX historical price data?
This page provides CLDX daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2011-2026, downloadable in CSV format.