4.85
price down icon3.19%   -0.16
after-market After Hours: 4.82 -0.03 -0.62%
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Clearsign Technologies Corp Stock (CLIR) Price History

The historical daily chart and data for Clearsign Technologies Corp stock (CLIR), show that the latest closing stock price as of May 22, 2026, is $4.85.
  • Clearsign Technologies Corp all-time high stock price is $11.90, occurred on March 13, 2014.
  • The lowest Clearsign Technologies Corp stock price recorded was $0.35 on March 20, 2020. Since then, Clearsign Technologies Corp's stock price has risen over 1,286% to $4.85 now.
  • The 52-week high stock price for CLIR is $11.20, representing a 130.93% increase from the current share price, occurred on October 06, 2025.
  • The 52-week low stock price for CLIR is $3.24, indicating a -33.20% decrease from the current share price, occurred on March 27, 2026.
  • The closing price of Clearsign Technologies Corp (CLIR) stock in the beginning of 2025 was $1.47. The stock closed the year at $0.536, a loss of over -63.54% for the year.
The table below shows more information about CLIR historical price data:
Date High Low High - Low Volume % Change
May 22, 2026 $4.89 $4.61 $0.28 17,890.0 -3.19%
May 21, 2026 $5.01 $4.59 $0.4217 8,052.0 +2.24%
May 20, 2026 $5.09 $4.51 $0.5799 16,855.0 +6.52%
May 19, 2026 $4.65 $4.46 $0.19 6,197.0 +4.31%
May 18, 2026 $4.82 $4.41 $0.41 25,386.0 -6.37%
May 15, 2026 $5.07 $4.62 $0.445 21,737.0 -9.51%
May 14, 2026 $5.56 $4.57 $0.9949 29,258.0 +16.97%
May 13, 2026 $4.74 $4.35 $0.385 16,117.0 -2.20%
May 12, 2026 $4.75 $4.37 $0.375 16,972.0 +4.24%
May 11, 2026 $4.61 $4.18 $0.43 22,508.0 -3.86%
May 08, 2026 $4.80 $4.21 $0.59 26,176.0 -6.00%
May 07, 2026 $4.98 $4.62 $0.36 16,308.0 -1.63%
May 06, 2026 $5.01 $4.80 $0.21 15,731.0 +0.00%
May 05, 2026 $4.99 $4.88 $0.105 4,994.0 -2.96%
May 04, 2026 $5.10 $4.57 $0.53 16,145.0 -1.17%
May 01, 2026 $5.22 $5.01 $0.21 14,550.0 +2.40%
Apr 30, 2026 $5.33 $5.00 $0.33 9,138.0 -6.89%
Apr 29, 2026 $5.56 $5.33 $0.23 2,881.0 +0.75%
Apr 28, 2026 $5.51 $5.32 $0.19 9,438.0 +1.91%
Apr 27, 2026 $5.33 $4.73 $0.6005 14,681.0 +4.60%
Apr 24, 2026 $5.26 $5.00 $0.2649 5,724.0 -3.10%
Apr 23, 2026 $5.50 $5.06 $0.44 15,246.0 -7.69%

Clearsign Technologies Corp Stock (CLIR) Year by Year Price History

In this detailed analysis, we present a comprehensive overview of the price movements of Clearsign Technologies Corp stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of CLIR shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Clearsign Technologies Corp stock price history provides a foundation for understanding how the company's stock has evolved over time.

Clearsign Technologies Corp Stock (CLIR) Price History 2026

Month High Low High - Low Volume % Change
May, 2026 $5.56 $4.18 $1.38 292,766.0 -3.00%
Apr, 2026 $7.56 $4.31 $3.25 1,255,522.0 +14.68%
Mar, 2026 $6.43 $3.24 $3.19 490,441.0 -22.38%
Feb, 2026 $7.04 $5.40 $1.64 153,133.2 -6.54%
Jan, 2026 $8.10 $5.50 $2.60 312,069.0 +8.07%

Clearsign Technologies Corp Stock (CLIR) Price History 2025

Month High Low High - Low Volume % Change
Dec, 2025 $7.99 $5.50 $2.49 240,826.9 -24.95%
Nov, 2025 $9.80 $6.81 $2.99 219,588.6 -14.85%
Oct, 2025 $11.20 $7.68 $3.52 647,770.1 +12.81%
Sep, 2025 $9.50 $4.60 $4.90 4,251,148.9 +31.99%
Aug, 2025 $6.20 $5.01 $1.19 127,478.0 +1.27%
Jul, 2025 $6.50 $4.90 $1.60 175,540.8 +3.05%
Jun, 2025 $7.00 $5.21 $1.79 89,990.0 -17.66%
May, 2025 $7.75 $5.30 $2.45 133,343.7 +14.75%
Apr, 2025 $7.80 $4.59 $3.21 204,209.9 -20.99%
Mar, 2025 $8.99 $6.74 $2.25 114,679.2 -1.16%
Feb, 2025 $12.10 $7.00 $5.10 199,771.8 -37.80%
Jan, 2025 $16.00 $10.50 $5.50 272,824.3 -15.28%

Clearsign Technologies Corp Stock (CLIR) Price History 2024

Month High Low High - Low Volume % Change
Dec, 2024 $15.70 $10.50 $5.20 274,830.2 +27.97%
Nov, 2024 $12.80 $8.20 $4.60 433,814.2 +36.81%
Oct, 2024 $9.20 $7.62 $1.58 167,518.9 +1.48%
Sep, 2024 $9.00 $6.80 $2.20 89,039.6 +13.34%
Aug, 2024 $8.75 $6.50 $2.25 86,500.7 -12.80%
Jul, 2024 $9.75 $7.89 $1.86 134,588.8 +3.08%
Jun, 2024 $9.52 $6.19 $3.33 260,441.3 +0.53%
May, 2024 $9.60 $7.30 $2.30 122,504.2 +5.04%
Apr, 2024 $10.30 $7.40 $2.90 161,848.1 -18.12%
Mar, 2024 $13.16 $9.00 $4.16 101,908.2 -24.61%
Feb, 2024 $13.20 $9.20 $4.00 151,439.0 +29.29%
Jan, 2024 $12.50 $9.50 $3.00 123,394.0 -10.81%
$2.43
price up icon 2.97%
$1.48
price up icon 2.07%
ARQ ARQ
$2.46
price down icon 0.81%
$8.85
price up icon 2.67%
$14.59
price up icon 2.17%
PCT PCT
$11.32
price down icon 0.09%
Cap:     |  Volume (24h):