ClearSign Technologies Corporation Announces 1-for-10 Reverse Stock Split to be Effective As of March 16, 2026

ClearSign Technologies (NASDAQ:CLIR) announced a 1-for-10 reverse stock split effective 12:01 a.m. ET on March 16, 2026, intended to increase the per-share price and regain compliance with Nasdaq's $1.00 minimum bid requirement.

Rhea-AI Summary

ClearSign Technologies (NASDAQ:CLIR) announced a 1-for-10 reverse stock split effective 12:01 a.m. ET on March 16, 2026, intended to increase the per-share price and regain compliance with Nasdaq's $1.00 minimum bid requirement. Shares outstanding will reduce from ~54.1 million to ~5.41 million; the ticker remains CLIR and a new CUSIP is 185064201.

Outstanding warrants and equity awards will be proportionately adjusted, no fractional shares will be issued (rounded up at the DTC participant level), and transfer agent VStock Transfer will act as exchange agent.

Positive

• Reverse split targets Nasdaq compliance by raising per-share price
• Shares outstanding reduced from ~54.1M to ~5.41M, increasing per-share metrics

Negative

• Reverse split may reduce liquidity due to ~90% fewer outstanding shares
• Proportionate increase in exercise prices for warrants and equity awards may affect option economics

Argus Mar 11 session

-21.65% close to close Open Argus

Details

News Market Reaction – CLIR

On Mar 11, the first trading day after this news, CLIR closed 21.65% below the previous close.

Data tracked by StockTitan Argus for the Mar 11 session.

Market Context

On Mar 11, the first trading day after this news, the stock closed 21.6% below the previous close. A...

Analysis

On Mar 11, the first trading day after this news, the stock closed 21.6% below the previous close. A negative reaction despite the mechanical nature of a 1-for-10 reverse split would fit a pattern where some operational or corporate updates coincided with declines, such as the Q3 2025 update’s -4.46% move. The stock traded near $0.5361, well below the $1.00 Nasdaq threshold, so sentiment around listing risk and reduced post‑split share count of roughly 5.41M could have amplified downside, even though the action itself primarily adjusted share count and price per share.

Key Figures

Reverse split ratio: 1-for-10 Effective date: March 16, 2026 Pre-split shares: 54.1 million +5 more

Reverse split ratio

1-for-10

Approved reverse stock split of common shares

Effective date

March 16, 2026

Reverse split effective 12:01 a.m. ET

Pre-split shares

54.1 million

Approximate common shares outstanding pre-split

Post-split shares

5.41 million

Approximate common shares outstanding post-split

Min bid requirement

$1.00

Nasdaq minimum bid price targeted by reverse split

Meeting approval date

February 26, 2026

Special stockholder meeting approving reverse split

Current share price

$0.5361

Pre‑announcement trading level vs Nasdaq $1.00 threshold

New CUSIP

185064201

CUSIP assigned to post‑split common stock

Historical Context

5 past events · Latest: Feb 18

5 events

1. Feb 18

   Corporate update call

   24h Move

   -3.4%

   Announcement of upcoming business update conference call and webcast details.

2. Feb 17

   Commercial order win

   24h Move

   +2.3%

   Fifth low-emission retrofit enclosed flare burner order from California energy customer.

3. Jan 07

   Preliminary earnings

   24h Move

   +27.9%

   Preliminary 2025 results with record Q4 revenue of ~$3.6M and FY ~$5.2M.

4. Nov 19

   Operational update

   24h Move

   -4.5%

   Q3 2025 update highlighting multiple burner, flare and hydrogen testing orders.

5. Nov 06

   Earnings call notice

   24h Move

   -2.2%

   Scheduling and access details for the Q3 2025 earnings conference call.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

reverse stock split, Nasdaq Capital Market, CUSIP, Depository Trust Company, +4 more

8 terms

reverse stock split financial

"today announced a 1-for-10 reverse stock split of its outstanding common stock."

A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.

Nasdaq Capital Market financial

"on a split-adjusted basis on the Nasdaq Capital Market ("Nasdaq") under the same symbol"

The Nasdaq Capital Market is a platform where smaller, emerging companies can list their shares for trading by investors. It provides these companies with access to funding and visibility, helping them grow, much like a local marketplace where new vendors can introduce their products to potential customers. For investors, it offers opportunities to discover early-stage companies with growth potential.

CUSIP financial

"under the same symbol "CLIR" when the market opens ... with the new CUSIP number 185064201."

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

View in glossary

Depository Trust Company financial

"one whole share rounded up at the participant level with the Depository Trust Company (the "DTC")."

A central securities depository that holds stocks, bonds and other securities in electronic form and handles the transfer and finalizing of trades between brokerages. For investors it acts like a secure electronic vault and central bookkeeping hub that speeds transactions, reduces the chance of lost or duplicated certificates, and determines whether holdings are eligible for trading, dividends and other corporate actions through your broker.

equity incentive plans financial

"In accordance with the terms of the Company's outstanding warrants, equity incentive plans and applicable award"

Equity incentive plans are company programs that pay employees, executives, or directors with company stock, stock options, or share units instead of or in addition to cash, aiming to align their interests with shareholders—like giving team members a stake in the house they help build. For investors this matters because such plans can motivate better company performance but also dilute existing ownership and increase reported compensation costs, so they affect future earnings, voting power, and share value.

Definitive Proxy Statement regulatory

"Additional information about the reverse stock split can be found in the Company's Definitive Proxy Statement"

A Definitive Proxy Statement is a detailed document that a company sends to its shareholders before a big meeting, like voting on important decisions. It explains what's being voted on and gives important information so shareholders can make informed choices. It matters because it helps shareholders understand and participate in key company decisions.

Form 8-K regulatory

"included in a Current Report on Form 8-K to be filed by the Company with the SEC"

A Form 8-K is a report that companies file with the government to share important news quickly, such as changes in leadership, major business deals, or financial updates. It matters because it helps investors stay informed about significant events that could affect the company's value or stock price.

Securities and Exchange Commission regulatory

"The Proxy Statement is available at www.sec.gov or at the Company's website"

A national government agency that enforces rules for buying, selling and disclosing information about stocks and other investments, acting like a referee and scorekeeper for financial markets. It requires companies to share clear, regular financial and business information and investigates fraud or rule-breaking, which matters to investors because those rules and disclosures help ensure fair prices, reduce hidden risks and make it easier to compare investment choices.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

TULSA, OKLAHOMA / ACCESS Newswire / March 10, 2026 / ClearSign Technologies Corporation (NASDAQ:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and safety, and support the use of cleaner fuels including hydrogen, today announced a 1-for-10 reverse stock split of its outstanding common stock. The reverse stock split will become effective at 12:01 a.m. ET on March 16, 2026. The common stock is expected to begin trading on a split-adjusted basis on the Nasdaq Capital Market ("Nasdaq") under the same symbol "CLIR" when the market opens on March 16, 2026, with the new CUSIP number 185064201.

The reverse stock split was approved by the Company's stockholders at the Company's special meeting of stockholders held on February 26, 2026. The reverse stock split is intended to increase the per share trading price of the Company's common stock to regain compliance with the $1.00 minimum bid price requirement for continued listing on Nasdaq. The reverse stock split will reduce the number of outstanding shares of the Company's common stock from approximately 54.1 million shares pre-reverse split to approximately 5.41 million shares post-reverse split.

The number of authorized shares of common stock and the par value per share will remain unchanged. As a result of the reverse stock split, every 10 shares of the Company's pre-reverse split common stock will be combined and reclassified into one share of common stock. Proportionate voting rights and other rights of such holders will not be affected by the reverse stock split. No fractional shares will be issued. Stockholders otherwise entitled to a fractional share will receive one whole share rounded up at the participant level with the Depository Trust Company (the "DTC").

In accordance with the terms of the Company's outstanding warrants, equity incentive plans and applicable award agreements, the number of shares underlying outstanding warrants and equity awards will be proportionately adjusted, and any exercise prices will be proportionately increased, to reflect the reverse stock split.

The Company's transfer agent, VStock Transfer, LLC, is acting as exchange agent for the reverse stock split and will send instructions to stockholders of record regarding the exchange of certificates for common stock, if any, for uncertificated shares of common stock. Stockholders owning shares via a broker or other nominee will have their positions automatically adjusted at the participant level with the DTC to reflect the reverse stock split, subject to the brokers' particular processes, and will not be required to take any action in connection with the reverse stock split.

Additional information about the reverse stock split can be found in the Company's Definitive Proxy Statement filed with the Securities and Exchange Commission (the "SEC") on February 2, 2026 (the "Proxy Statement"). The Proxy Statement is available at www.sec.gov or at the Company's website at www.clearsign.com. Additional information regarding this reverse stock split will be included in a Current Report on Form 8-K to be filed by the Company with the SEC on or about March 11, 2026.

Forward-Looking Statements

This press release may contain forward-looking statements about the Company, including, without limitation, the Company's expectations regarding anticipated compliance with Nasdaq's minimum bid price rules. You can find many (but not all) of these statements by looking for words such as "approximates," "believes," "hopes," "expects," "anticipates," "estimates," "projects," "intends," "plans," "would," "should," "could," "may," "will" or other similar expressions. While management has based any forward-looking statements included in this press release on its current expectations on the Company's strategy, plans, intentions, performance, or future occurrences or results, the information on which such expectations were based may change. These forward-looking statements rely on a number of assumptions concerning future events and are subject to a number of risks, uncertainties and other factors, many of which are outside of the Company's control, that could cause actual results to materially differ from such statements. Such risks, uncertainties and other factors include, but are not limited to, the Company's ability to regain compliance with Nasdaq's minimum bid price rule, the Company's ability to successfully complete engineering orders for its customers; the Company's ability to generate equipment and installation orders following an initial engineering order from customers; the Company's ability to successfully deliver, install, and meet the performance obligations of the Company's burners in the California market and any other markets the Company may sell products in; the Company's ability to further expand the sale of ultra-low NOx process, flare and boiler burners; the Company's ability to continue expanding its customer base in the refining industry; the Company's ability to effectively compete in the flare industry and to retain its existing customers in such industry; the Company's ability to provide low emissions retrofit solutions based on continuously changing air permit requirements at the federal and state level; the Company's ability to continue innovating and expanding its scope of product and service applications; the Company's ability to expand its engagement with current, and future, customers beyond burner technology and into broader emission and system integration solutions; general business and economic conditions; the performance of management and the Company's employees; the Company's ability to obtain financing; whether the Company's technology will be accepted and adopted and other factors identified in the Company's Annual Report on Form 10-K and other periodic and current reports filed with the SEC and available for review at www.sec.gov. Furthermore, the Company operates in a competitive environment where new and unanticipated risks may arise. Accordingly, investors should not place any reliance on forward-looking statements as a prediction of actual results. The Company disclaims any intention to, and, except as may be required by law, undertakes no obligation to, update or revise forward-looking statements to reflect events or circumstances that subsequently occur or of which the Company hereafter become aware.

About ClearSign Technologies Corporation

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core™ and ClearSign Eye™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit www.clearsign.com.

Investor Relations:
Matthew Selinger
Firm IR Group for ClearSign
+1 415-572-8152
mselinger@firmirgroup.com

SOURCE: ClearSign Technologies

View the original press release on ACCESS Newswire

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does ClearSign (CLIR) 1-for-10 reverse stock split mean for shareholders?

The reverse split consolidates every 10 pre-split shares into one post-split share. According to the company, shares outstanding will fall from ~54.1 million to ~5.41 million, with proportional adjustments to warrants and equity awards and no fractional shares issued.

When will the CLIR reverse stock split take effect and begin trading on Nasdaq?

The reverse split becomes effective at 12:01 a.m. ET on March 16, 2026 and will trade on March 16, 2026. According to the company, CLIR will trade on a split-adjusted basis under the same symbol when markets open that day.

Will my ClearSign (CLIR) fractional shares be paid in cash after the 1-for-10 split?

No cash-in-lieu will be issued for fractions; fractional entitlements are rounded up at DTC participant level. According to the company, stockholders otherwise entitled to a fractional share will receive one whole share rounded up at the DTC participant level.

How will ClearSign's (CLIR) warrants and equity awards be affected by the reverse split?

Outstanding warrants and equity awards will be adjusted proportionately and exercise prices increased. According to the company, the number of underlying shares will be reduced and exercise prices will be proportionately increased to reflect the 1-for-10 split.

Do CLIR stockholders need to take action for the March 16, 2026 reverse split?

Most shareholders do not need to take action; brokered positions will be adjusted automatically. According to the company, DTC participant-level holdings will be updated and transfer agent instructions will be sent to registered stockholders if certificate exchanges are required.